./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec3_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec3_product23.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 f91feaa60fbddcfc87f4cdb3911bff4dfabb88b0b67a46a205760e052b15032c --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:46:49,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:46:49,808 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:46:49,811 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:46:49,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:46:49,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:46:49,826 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:46:49,826 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:46:49,826 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:46:49,826 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:46:49,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:46:49,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:46:49,827 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:46:49,827 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:46:49,828 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:46:49,828 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:46:49,828 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:46:49,828 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/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 -> f91feaa60fbddcfc87f4cdb3911bff4dfabb88b0b67a46a205760e052b15032c [2025-01-09 03:46:50,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:46:50,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:46:50,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:46:50,024 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:46:50,024 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:46:50,026 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product23.cil.c [2025-01-09 03:46:51,198 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/89e5997c9/c2efe0c552a84bfeb5f5f7bed5de205b/FLAG13f2030b5 [2025-01-09 03:46:51,633 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:46:51,634 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product23.cil.c [2025-01-09 03:46:51,659 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/89e5997c9/c2efe0c552a84bfeb5f5f7bed5de205b/FLAG13f2030b5 [2025-01-09 03:46:51,802 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/89e5997c9/c2efe0c552a84bfeb5f5f7bed5de205b [2025-01-09 03:46:51,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:46:51,805 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:46:51,807 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:46:51,807 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:46:51,810 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:46:51,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:46:51" (1/1) ... [2025-01-09 03:46:51,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30296b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:51, skipping insertion in model container [2025-01-09 03:46:51,812 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:46:51" (1/1) ... [2025-01-09 03:46:51,860 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:46:52,028 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product23.cil.c[5798,5811] [2025-01-09 03:46:52,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:46:52,225 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:46:52,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2025-01-09 03:46:52,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [67] [2025-01-09 03:46:52,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [260] [2025-01-09 03:46:52,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [269] [2025-01-09 03:46:52,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1874] [2025-01-09 03:46:52,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1968] [2025-01-09 03:46:52,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2086] [2025-01-09 03:46:52,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2124] [2025-01-09 03:46:52,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2472] [2025-01-09 03:46:52,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2838] [2025-01-09 03:46:52,248 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product23.cil.c[5798,5811] [2025-01-09 03:46:52,368 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:46:52,397 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:46:52,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52 WrapperNode [2025-01-09 03:46:52,399 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:46:52,400 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:46:52,400 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:46:52,400 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:46:52,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,469 INFO L138 Inliner]: procedures = 94, calls = 353, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 941 [2025-01-09 03:46:52,469 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:46:52,470 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:46:52,470 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:46:52,470 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:46:52,483 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,492 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,538 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2025-01-09 03:46:52,538 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,538 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,561 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,564 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,575 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,602 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:46:52,603 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:46:52,603 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:46:52,604 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:46:52,604 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (1/1) ... [2025-01-09 03:46:52,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:46:52,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:46:52,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 03:46:52,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 03:46:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:46:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-01-09 03:46:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-01-09 03:46:52,669 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2025-01-09 03:46:52,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2025-01-09 03:46:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-01-09 03:46:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-01-09 03:46:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-01-09 03:46:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-01-09 03:46:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-01-09 03:46:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-01-09 03:46:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-01-09 03:46:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-01-09 03:46:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2025-01-09 03:46:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2025-01-09 03:46:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-01-09 03:46:52,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-01-09 03:46:52,670 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 03:46:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 03:46:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 03:46:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 03:46:52,671 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-01-09 03:46:52,671 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-01-09 03:46:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-01-09 03:46:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-01-09 03:46:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-01-09 03:46:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-01-09 03:46:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-01-09 03:46:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-01-09 03:46:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-01-09 03:46:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-01-09 03:46:52,672 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2025-01-09 03:46:52,672 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2025-01-09 03:46:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-01-09 03:46:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-01-09 03:46:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-01-09 03:46:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-01-09 03:46:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2025-01-09 03:46:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2025-01-09 03:46:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-01-09 03:46:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-01-09 03:46:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-01-09 03:46:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-01-09 03:46:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-01-09 03:46:52,674 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-01-09 03:46:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2025-01-09 03:46:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-01-09 03:46:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-01-09 03:46:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-01-09 03:46:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2025-01-09 03:46:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:46:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:46:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-01-09 03:46:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-01-09 03:46:52,811 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:46:52,813 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:46:53,822 INFO L? ?]: Removed 481 outVars from TransFormulas that were not future-live. [2025-01-09 03:46:53,822 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:46:53,850 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:46:53,850 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:46:53,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:46:53 BoogieIcfgContainer [2025-01-09 03:46:53,851 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:46:53,852 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:46:53,852 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:46:53,856 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:46:53,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:46:51" (1/3) ... [2025-01-09 03:46:53,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7435a652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:46:53, skipping insertion in model container [2025-01-09 03:46:53,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:46:52" (2/3) ... [2025-01-09 03:46:53,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7435a652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:46:53, skipping insertion in model container [2025-01-09 03:46:53,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:46:53" (3/3) ... [2025-01-09 03:46:53,857 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product23.cil.c [2025-01-09 03:46:53,867 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:46:53,869 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec3_product23.cil.c that has 29 procedures, 611 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:46:53,930 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:46:53,937 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;@563561bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:46:53,937 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:46:53,941 INFO L276 IsEmpty]: Start isEmpty. Operand has 611 states, 468 states have (on average 1.6602564102564104) internal successors, (777), 486 states have internal predecessors, (777), 113 states have call successors, (113), 28 states have call predecessors, (113), 28 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) [2025-01-09 03:46:53,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-01-09 03:46:53,958 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:53,958 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:53,959 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:53,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:53,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1061959834, now seen corresponding path program 1 times [2025-01-09 03:46:53,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:53,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201536863] [2025-01-09 03:46:53,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:53,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:54,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-01-09 03:46:54,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-01-09 03:46:54,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:54,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:54,746 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:46:54,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:54,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201536863] [2025-01-09 03:46:54,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201536863] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:54,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:46:54,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:46:54,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515052070] [2025-01-09 03:46:54,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:54,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:46:54,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:54,766 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:46:54,767 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:46:54,770 INFO L87 Difference]: Start difference. First operand has 611 states, 468 states have (on average 1.6602564102564104) internal successors, (777), 486 states have internal predecessors, (777), 113 states have call successors, (113), 28 states have call predecessors, (113), 28 states have return successors, (113), 110 states have call predecessors, (113), 113 states have call successors, (113) Second operand has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:54,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:46:54,997 INFO L93 Difference]: Finished difference Result 1219 states and 2018 transitions. [2025-01-09 03:46:54,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:46:54,999 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 115 [2025-01-09 03:46:55,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:55,018 INFO L225 Difference]: With dead ends: 1219 [2025-01-09 03:46:55,019 INFO L226 Difference]: Without dead ends: 616 [2025-01-09 03:46:55,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:46:55,034 INFO L435 NwaCegarLoop]: 986 mSDtfsCounter, 91 mSDsluCounter, 4845 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5831 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:55,035 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5831 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:46:55,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states. [2025-01-09 03:46:55,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 614. [2025-01-09 03:46:55,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 471 states have (on average 1.653927813163482) internal successors, (779), 489 states have internal predecessors, (779), 114 states have call successors, (114), 28 states have call predecessors, (114), 28 states have return successors, (113), 109 states have call predecessors, (113), 111 states have call successors, (113) [2025-01-09 03:46:55,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 1006 transitions. [2025-01-09 03:46:55,117 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 1006 transitions. Word has length 115 [2025-01-09 03:46:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:55,117 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 1006 transitions. [2025-01-09 03:46:55,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:55,118 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 1006 transitions. [2025-01-09 03:46:55,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-01-09 03:46:55,124 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:55,124 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:55,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 03:46:55,125 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:55,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:55,126 INFO L85 PathProgramCache]: Analyzing trace with hash -609017865, now seen corresponding path program 1 times [2025-01-09 03:46:55,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:55,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434646293] [2025-01-09 03:46:55,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:55,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:55,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 03:46:55,173 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 03:46:55,174 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:55,174 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:55,436 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:46:55,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:55,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434646293] [2025-01-09 03:46:55,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434646293] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:55,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:46:55,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:46:55,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900795149] [2025-01-09 03:46:55,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:55,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:46:55,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:55,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:46:55,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:46:55,438 INFO L87 Difference]: Start difference. First operand 614 states and 1006 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:55,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:46:55,550 INFO L93 Difference]: Finished difference Result 1223 states and 2015 transitions. [2025-01-09 03:46:55,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:46:55,551 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 116 [2025-01-09 03:46:55,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:55,557 INFO L225 Difference]: With dead ends: 1223 [2025-01-09 03:46:55,557 INFO L226 Difference]: Without dead ends: 625 [2025-01-09 03:46:55,560 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:46:55,561 INFO L435 NwaCegarLoop]: 988 mSDtfsCounter, 90 mSDsluCounter, 4844 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 5832 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:55,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 5832 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:46:55,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2025-01-09 03:46:55,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 614. [2025-01-09 03:46:55,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 471 states have (on average 1.653927813163482) internal successors, (779), 489 states have internal predecessors, (779), 114 states have call successors, (114), 28 states have call predecessors, (114), 28 states have return successors, (113), 109 states have call predecessors, (113), 111 states have call successors, (113) [2025-01-09 03:46:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 1006 transitions. [2025-01-09 03:46:55,590 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 1006 transitions. Word has length 116 [2025-01-09 03:46:55,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:55,590 INFO L471 AbstractCegarLoop]: Abstraction has 614 states and 1006 transitions. [2025-01-09 03:46:55,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:55,590 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 1006 transitions. [2025-01-09 03:46:55,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-01-09 03:46:55,594 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:55,594 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:55,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 03:46:55,595 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:55,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:55,595 INFO L85 PathProgramCache]: Analyzing trace with hash -249157471, now seen corresponding path program 1 times [2025-01-09 03:46:55,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:55,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879695233] [2025-01-09 03:46:55,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:55,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:55,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 03:46:55,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 03:46:55,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:55,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:46:55,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:55,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879695233] [2025-01-09 03:46:55,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879695233] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:55,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:46:55,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:46:55,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221104684] [2025-01-09 03:46:55,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:55,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:46:55,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:55,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:46:55,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:46:55,730 INFO L87 Difference]: Start difference. First operand 614 states and 1006 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 03:46:55,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:46:55,780 INFO L93 Difference]: Finished difference Result 1210 states and 1993 transitions. [2025-01-09 03:46:55,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:46:55,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2025-01-09 03:46:55,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:55,783 INFO L225 Difference]: With dead ends: 1210 [2025-01-09 03:46:55,783 INFO L226 Difference]: Without dead ends: 584 [2025-01-09 03:46:55,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:46:55,786 INFO L435 NwaCegarLoop]: 976 mSDtfsCounter, 14 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2923 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:55,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2923 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:46:55,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2025-01-09 03:46:55,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2025-01-09 03:46:55,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 584 states, 444 states have (on average 1.6373873873873874) internal successors, (727), 460 states have internal predecessors, (727), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2025-01-09 03:46:55,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 950 transitions. [2025-01-09 03:46:55,806 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 950 transitions. Word has length 116 [2025-01-09 03:46:55,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:55,806 INFO L471 AbstractCegarLoop]: Abstraction has 584 states and 950 transitions. [2025-01-09 03:46:55,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 03:46:55,807 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 950 transitions. [2025-01-09 03:46:55,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-01-09 03:46:55,809 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:55,809 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:55,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 03:46:55,809 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:55,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:55,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1858021282, now seen corresponding path program 1 times [2025-01-09 03:46:55,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:55,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875394188] [2025-01-09 03:46:55,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:55,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:55,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-01-09 03:46:55,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-01-09 03:46:55,835 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:55,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:55,988 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:46:55,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:55,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875394188] [2025-01-09 03:46:55,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875394188] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:55,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:46:55,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:46:55,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790626739] [2025-01-09 03:46:55,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:55,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:46:55,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:55,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:46:55,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:46:55,990 INFO L87 Difference]: Start difference. First operand 584 states and 950 transitions. Second operand has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:56,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:46:56,053 INFO L93 Difference]: Finished difference Result 1161 states and 1899 transitions. [2025-01-09 03:46:56,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:46:56,053 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 117 [2025-01-09 03:46:56,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:56,057 INFO L225 Difference]: With dead ends: 1161 [2025-01-09 03:46:56,057 INFO L226 Difference]: Without dead ends: 578 [2025-01-09 03:46:56,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:46:56,060 INFO L435 NwaCegarLoop]: 940 mSDtfsCounter, 63 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 5582 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:56,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 5582 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:46:56,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2025-01-09 03:46:56,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2025-01-09 03:46:56,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 438 states have (on average 1.63013698630137) internal successors, (714), 454 states have internal predecessors, (714), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2025-01-09 03:46:56,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 937 transitions. [2025-01-09 03:46:56,119 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 937 transitions. Word has length 117 [2025-01-09 03:46:56,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:56,119 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 937 transitions. [2025-01-09 03:46:56,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:56,120 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 937 transitions. [2025-01-09 03:46:56,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-01-09 03:46:56,122 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:56,122 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:56,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 03:46:56,122 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:56,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:56,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1384243451, now seen corresponding path program 1 times [2025-01-09 03:46:56,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:56,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139736882] [2025-01-09 03:46:56,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:56,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:56,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-01-09 03:46:56,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-01-09 03:46:56,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:56,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:46:56,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:56,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139736882] [2025-01-09 03:46:56,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139736882] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:56,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:46:56,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:46:56,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562260036] [2025-01-09 03:46:56,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:56,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:46:56,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:56,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:46:56,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:46:56,328 INFO L87 Difference]: Start difference. First operand 578 states and 937 transitions. Second operand has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:56,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:46:56,429 INFO L93 Difference]: Finished difference Result 1149 states and 1873 transitions. [2025-01-09 03:46:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:46:56,430 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 118 [2025-01-09 03:46:56,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:56,437 INFO L225 Difference]: With dead ends: 1149 [2025-01-09 03:46:56,438 INFO L226 Difference]: Without dead ends: 572 [2025-01-09 03:46:56,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:46:56,443 INFO L435 NwaCegarLoop]: 928 mSDtfsCounter, 49 mSDsluCounter, 4594 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 5522 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:56,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 5522 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:46:56,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2025-01-09 03:46:56,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2025-01-09 03:46:56,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 432 states have (on average 1.6226851851851851) internal successors, (701), 448 states have internal predecessors, (701), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2025-01-09 03:46:56,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 924 transitions. [2025-01-09 03:46:56,472 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 924 transitions. Word has length 118 [2025-01-09 03:46:56,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:56,472 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 924 transitions. [2025-01-09 03:46:56,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:56,472 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 924 transitions. [2025-01-09 03:46:56,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-01-09 03:46:56,476 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:56,476 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:56,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 03:46:56,476 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:56,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:56,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1668355524, now seen corresponding path program 1 times [2025-01-09 03:46:56,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:56,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927703924] [2025-01-09 03:46:56,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:56,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:56,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-01-09 03:46:56,518 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-01-09 03:46:56,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:56,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:56,685 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:46:56,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:56,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927703924] [2025-01-09 03:46:56,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927703924] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:56,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:46:56,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:46:56,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189503068] [2025-01-09 03:46:56,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:56,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:46:56,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:56,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:46:56,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:46:56,689 INFO L87 Difference]: Start difference. First operand 572 states and 924 transitions. Second operand has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:56,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:46:56,747 INFO L93 Difference]: Finished difference Result 1137 states and 1847 transitions. [2025-01-09 03:46:56,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:46:56,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 118 [2025-01-09 03:46:56,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:56,752 INFO L225 Difference]: With dead ends: 1137 [2025-01-09 03:46:56,752 INFO L226 Difference]: Without dead ends: 572 [2025-01-09 03:46:56,755 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:46:56,755 INFO L435 NwaCegarLoop]: 916 mSDtfsCounter, 24 mSDsluCounter, 4558 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 5474 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:56,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 5474 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:46:56,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2025-01-09 03:46:56,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2025-01-09 03:46:56,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 432 states have (on average 1.6203703703703705) internal successors, (700), 448 states have internal predecessors, (700), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2025-01-09 03:46:56,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 923 transitions. [2025-01-09 03:46:56,782 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 923 transitions. Word has length 118 [2025-01-09 03:46:56,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:56,782 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 923 transitions. [2025-01-09 03:46:56,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 923 transitions. [2025-01-09 03:46:56,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-01-09 03:46:56,785 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:56,785 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:56,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 03:46:56,785 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:56,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:56,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2121900066, now seen corresponding path program 1 times [2025-01-09 03:46:56,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:56,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698354449] [2025-01-09 03:46:56,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:56,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:56,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-01-09 03:46:56,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-01-09 03:46:56,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:56,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:56,906 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:46:56,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:56,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698354449] [2025-01-09 03:46:56,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698354449] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:56,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:46:56,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:46:56,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051021714] [2025-01-09 03:46:56,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:56,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:46:56,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:56,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:46:56,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:46:56,908 INFO L87 Difference]: Start difference. First operand 572 states and 923 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 03:46:56,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:46:56,954 INFO L93 Difference]: Finished difference Result 1128 states and 1832 transitions. [2025-01-09 03:46:56,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:46:56,954 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 119 [2025-01-09 03:46:56,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:56,958 INFO L225 Difference]: With dead ends: 1128 [2025-01-09 03:46:56,958 INFO L226 Difference]: Without dead ends: 572 [2025-01-09 03:46:56,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:46:56,961 INFO L435 NwaCegarLoop]: 908 mSDtfsCounter, 15 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2709 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:56,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2709 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:46:56,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2025-01-09 03:46:56,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2025-01-09 03:46:56,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 432 states have (on average 1.6180555555555556) internal successors, (699), 448 states have internal predecessors, (699), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2025-01-09 03:46:56,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 922 transitions. [2025-01-09 03:46:56,983 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 922 transitions. Word has length 119 [2025-01-09 03:46:56,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:56,983 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 922 transitions. [2025-01-09 03:46:56,983 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 03:46:56,984 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 922 transitions. [2025-01-09 03:46:56,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-01-09 03:46:56,986 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:56,987 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:56,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 03:46:56,987 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:56,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:56,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1163218619, now seen corresponding path program 1 times [2025-01-09 03:46:56,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:56,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353914301] [2025-01-09 03:46:56,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:56,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:57,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-01-09 03:46:57,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-01-09 03:46:57,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:57,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:57,083 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:46:57,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:57,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353914301] [2025-01-09 03:46:57,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353914301] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:57,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:46:57,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:46:57,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178342625] [2025-01-09 03:46:57,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:57,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:46:57,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:57,084 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:46:57,084 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:46:57,085 INFO L87 Difference]: Start difference. First operand 572 states and 922 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 03:46:57,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:46:57,152 INFO L93 Difference]: Finished difference Result 1128 states and 1830 transitions. [2025-01-09 03:46:57,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:46:57,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 120 [2025-01-09 03:46:57,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:57,156 INFO L225 Difference]: With dead ends: 1128 [2025-01-09 03:46:57,156 INFO L226 Difference]: Without dead ends: 572 [2025-01-09 03:46:57,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:46:57,159 INFO L435 NwaCegarLoop]: 909 mSDtfsCounter, 14 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:57,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2711 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:46:57,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2025-01-09 03:46:57,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2025-01-09 03:46:57,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 432 states have (on average 1.6157407407407407) internal successors, (698), 448 states have internal predecessors, (698), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2025-01-09 03:46:57,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 921 transitions. [2025-01-09 03:46:57,182 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 921 transitions. Word has length 120 [2025-01-09 03:46:57,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:57,182 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 921 transitions. [2025-01-09 03:46:57,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 03:46:57,183 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 921 transitions. [2025-01-09 03:46:57,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-01-09 03:46:57,185 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:57,185 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:57,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 03:46:57,185 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:57,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:57,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2104309369, now seen corresponding path program 1 times [2025-01-09 03:46:57,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:57,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884813704] [2025-01-09 03:46:57,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:57,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:57,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-01-09 03:46:57,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-01-09 03:46:57,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:57,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:57,304 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:46:57,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:57,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884813704] [2025-01-09 03:46:57,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884813704] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:57,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:46:57,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:46:57,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648218515] [2025-01-09 03:46:57,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:57,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:46:57,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:57,306 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:46:57,306 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:46:57,306 INFO L87 Difference]: Start difference. First operand 572 states and 921 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 03:46:57,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:46:57,349 INFO L93 Difference]: Finished difference Result 1128 states and 1828 transitions. [2025-01-09 03:46:57,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:46:57,349 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 121 [2025-01-09 03:46:57,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:57,353 INFO L225 Difference]: With dead ends: 1128 [2025-01-09 03:46:57,353 INFO L226 Difference]: Without dead ends: 572 [2025-01-09 03:46:57,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:46:57,357 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 13 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2713 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:57,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2713 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:46:57,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2025-01-09 03:46:57,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2025-01-09 03:46:57,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 432 states have (on average 1.6134259259259258) internal successors, (697), 448 states have internal predecessors, (697), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2025-01-09 03:46:57,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 920 transitions. [2025-01-09 03:46:57,379 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 920 transitions. Word has length 121 [2025-01-09 03:46:57,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:57,379 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 920 transitions. [2025-01-09 03:46:57,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 03:46:57,379 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 920 transitions. [2025-01-09 03:46:57,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-01-09 03:46:57,381 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:57,381 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:57,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 03:46:57,382 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:57,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:57,382 INFO L85 PathProgramCache]: Analyzing trace with hash 363331200, now seen corresponding path program 1 times [2025-01-09 03:46:57,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:57,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950534717] [2025-01-09 03:46:57,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:57,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:57,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-01-09 03:46:57,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-01-09 03:46:57,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:57,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:57,467 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:46:57,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:57,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950534717] [2025-01-09 03:46:57,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950534717] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:57,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:46:57,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:46:57,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579545466] [2025-01-09 03:46:57,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:57,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:46:57,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:57,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:46:57,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:46:57,469 INFO L87 Difference]: Start difference. First operand 572 states and 920 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 03:46:57,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:46:57,502 INFO L93 Difference]: Finished difference Result 1128 states and 1826 transitions. [2025-01-09 03:46:57,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:46:57,503 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 122 [2025-01-09 03:46:57,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:57,506 INFO L225 Difference]: With dead ends: 1128 [2025-01-09 03:46:57,506 INFO L226 Difference]: Without dead ends: 572 [2025-01-09 03:46:57,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:46:57,509 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 12 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2715 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:57,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2715 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:46:57,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2025-01-09 03:46:57,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2025-01-09 03:46:57,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 432 states have (on average 1.6111111111111112) internal successors, (696), 448 states have internal predecessors, (696), 113 states have call successors, (113), 28 states have call predecessors, (113), 26 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2025-01-09 03:46:57,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 919 transitions. [2025-01-09 03:46:57,526 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 919 transitions. Word has length 122 [2025-01-09 03:46:57,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:57,526 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 919 transitions. [2025-01-09 03:46:57,526 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 03:46:57,526 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 919 transitions. [2025-01-09 03:46:57,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-01-09 03:46:57,529 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:57,529 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:57,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 03:46:57,529 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:57,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:57,529 INFO L85 PathProgramCache]: Analyzing trace with hash 232570604, now seen corresponding path program 1 times [2025-01-09 03:46:57,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:57,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790046954] [2025-01-09 03:46:57,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:57,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:57,545 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-01-09 03:46:57,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-01-09 03:46:57,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:57,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:57,761 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:46:57,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:57,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790046954] [2025-01-09 03:46:57,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790046954] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:46:57,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108610396] [2025-01-09 03:46:57,761 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:57,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:46:57,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:46:57,764 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:46:57,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 03:46:57,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-01-09 03:46:58,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-01-09 03:46:58,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:58,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:58,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 1637 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 03:46:58,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:46:58,189 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:46:58,191 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:46:58,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108610396] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:58,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:46:58,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-01-09 03:46:58,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335302962] [2025-01-09 03:46:58,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:58,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:46:58,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:58,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:46:58,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:46:58,193 INFO L87 Difference]: Start difference. First operand 572 states and 919 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:58,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:46:58,250 INFO L93 Difference]: Finished difference Result 1627 states and 2645 transitions. [2025-01-09 03:46:58,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:46:58,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 123 [2025-01-09 03:46:58,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:58,258 INFO L225 Difference]: With dead ends: 1627 [2025-01-09 03:46:58,258 INFO L226 Difference]: Without dead ends: 1073 [2025-01-09 03:46:58,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:46:58,262 INFO L435 NwaCegarLoop]: 1632 mSDtfsCounter, 844 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:58,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 2445 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:46:58,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1073 states. [2025-01-09 03:46:58,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1073 to 1058. [2025-01-09 03:46:58,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 806 states have (on average 1.6228287841191067) internal successors, (1308), 837 states have internal predecessors, (1308), 201 states have call successors, (201), 51 states have call predecessors, (201), 50 states have return successors, (203), 195 states have call predecessors, (203), 198 states have call successors, (203) [2025-01-09 03:46:58,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1712 transitions. [2025-01-09 03:46:58,303 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1712 transitions. Word has length 123 [2025-01-09 03:46:58,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:58,304 INFO L471 AbstractCegarLoop]: Abstraction has 1058 states and 1712 transitions. [2025-01-09 03:46:58,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:58,304 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1712 transitions. [2025-01-09 03:46:58,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-01-09 03:46:58,308 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:58,308 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:58,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 03:46:58,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-01-09 03:46:58,512 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:58,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:58,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1948236917, now seen corresponding path program 1 times [2025-01-09 03:46:58,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:58,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118791550] [2025-01-09 03:46:58,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:58,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:58,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-01-09 03:46:58,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-01-09 03:46:58,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:58,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:46:58,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:58,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118791550] [2025-01-09 03:46:58,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118791550] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:46:58,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388566912] [2025-01-09 03:46:58,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:58,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:46:58,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:46:58,716 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:46:58,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 03:46:58,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-01-09 03:46:59,012 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-01-09 03:46:59,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:59,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:59,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 03:46:59,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:46:59,121 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:46:59,121 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:46:59,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388566912] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:59,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:46:59,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-01-09 03:46:59,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536472731] [2025-01-09 03:46:59,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:59,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:46:59,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:59,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:46:59,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:46:59,123 INFO L87 Difference]: Start difference. First operand 1058 states and 1712 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:59,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:46:59,192 INFO L93 Difference]: Finished difference Result 2599 states and 4233 transitions. [2025-01-09 03:46:59,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:46:59,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 124 [2025-01-09 03:46:59,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:59,200 INFO L225 Difference]: With dead ends: 2599 [2025-01-09 03:46:59,200 INFO L226 Difference]: Without dead ends: 1559 [2025-01-09 03:46:59,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:46:59,205 INFO L435 NwaCegarLoop]: 919 mSDtfsCounter, 843 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:59,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 1733 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:46:59,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1559 states. [2025-01-09 03:46:59,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1559 to 1511. [2025-01-09 03:46:59,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1511 states, 1153 states have (on average 1.6339982653946228) internal successors, (1884), 1199 states have internal predecessors, (1884), 286 states have call successors, (286), 71 states have call predecessors, (286), 71 states have return successors, (293), 279 states have call predecessors, (293), 283 states have call successors, (293) [2025-01-09 03:46:59,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1511 states to 1511 states and 2463 transitions. [2025-01-09 03:46:59,260 INFO L78 Accepts]: Start accepts. Automaton has 1511 states and 2463 transitions. Word has length 124 [2025-01-09 03:46:59,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:59,261 INFO L471 AbstractCegarLoop]: Abstraction has 1511 states and 2463 transitions. [2025-01-09 03:46:59,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-01-09 03:46:59,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1511 states and 2463 transitions. [2025-01-09 03:46:59,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-01-09 03:46:59,267 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:59,267 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:46:59,278 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 03:46:59,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:46:59,468 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:59,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:59,468 INFO L85 PathProgramCache]: Analyzing trace with hash 924597510, now seen corresponding path program 1 times [2025-01-09 03:46:59,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:59,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699151035] [2025-01-09 03:46:59,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:59,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:59,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-01-09 03:46:59,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-01-09 03:46:59,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:59,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:59,633 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:46:59,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:59,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699151035] [2025-01-09 03:46:59,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699151035] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:46:59,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:46:59,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:46:59,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637345218] [2025-01-09 03:46:59,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:46:59,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:46:59,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:59,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:46:59,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:46:59,635 INFO L87 Difference]: Start difference. First operand 1511 states and 2463 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:47:00,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:47:00,118 INFO L93 Difference]: Finished difference Result 4457 states and 7396 transitions. [2025-01-09 03:47:00,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:47:00,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 126 [2025-01-09 03:47:00,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:47:00,137 INFO L225 Difference]: With dead ends: 4457 [2025-01-09 03:47:00,138 INFO L226 Difference]: Without dead ends: 2964 [2025-01-09 03:47:00,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:47:00,147 INFO L435 NwaCegarLoop]: 1021 mSDtfsCounter, 910 mSDsluCounter, 3671 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 4692 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 03:47:00,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 4692 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 03:47:00,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2025-01-09 03:47:00,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2917. [2025-01-09 03:47:00,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2917 states, 2227 states have (on average 1.633587786259542) internal successors, (3638), 2315 states have internal predecessors, (3638), 551 states have call successors, (551), 136 states have call predecessors, (551), 138 states have return successors, (637), 543 states have call predecessors, (637), 547 states have call successors, (637) [2025-01-09 03:47:00,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2917 states to 2917 states and 4826 transitions. [2025-01-09 03:47:00,285 INFO L78 Accepts]: Start accepts. Automaton has 2917 states and 4826 transitions. Word has length 126 [2025-01-09 03:47:00,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:47:00,285 INFO L471 AbstractCegarLoop]: Abstraction has 2917 states and 4826 transitions. [2025-01-09 03:47:00,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:47:00,286 INFO L276 IsEmpty]: Start isEmpty. Operand 2917 states and 4826 transitions. [2025-01-09 03:47:00,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-01-09 03:47:00,291 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:47:00,291 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:47:00,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 03:47:00,291 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:47:00,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:47:00,292 INFO L85 PathProgramCache]: Analyzing trace with hash -678805672, now seen corresponding path program 1 times [2025-01-09 03:47:00,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:47:00,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163743012] [2025-01-09 03:47:00,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:00,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:47:00,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:47:00,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:47:00,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:00,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:00,445 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:47:00,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:47:00,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163743012] [2025-01-09 03:47:00,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163743012] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:47:00,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:47:00,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:47:00,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424548950] [2025-01-09 03:47:00,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:47:00,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:47:00,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:47:00,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:47:00,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:47:00,447 INFO L87 Difference]: Start difference. First operand 2917 states and 4826 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:47:00,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:47:00,673 INFO L93 Difference]: Finished difference Result 5830 states and 9722 transitions. [2025-01-09 03:47:00,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:47:00,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2025-01-09 03:47:00,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:47:00,695 INFO L225 Difference]: With dead ends: 5830 [2025-01-09 03:47:00,695 INFO L226 Difference]: Without dead ends: 2931 [2025-01-09 03:47:00,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:47:00,719 INFO L435 NwaCegarLoop]: 902 mSDtfsCounter, 12 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2679 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:47:00,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2679 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:47:00,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2025-01-09 03:47:00,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 2921. [2025-01-09 03:47:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2921 states, 2230 states have (on average 1.6322869955156951) internal successors, (3640), 2318 states have internal predecessors, (3640), 551 states have call successors, (551), 138 states have call predecessors, (551), 139 states have return successors, (629), 542 states have call predecessors, (629), 547 states have call successors, (629) [2025-01-09 03:47:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4820 transitions. [2025-01-09 03:47:00,879 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4820 transitions. Word has length 127 [2025-01-09 03:47:00,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:47:00,879 INFO L471 AbstractCegarLoop]: Abstraction has 2921 states and 4820 transitions. [2025-01-09 03:47:00,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:47:00,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4820 transitions. [2025-01-09 03:47:00,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-01-09 03:47:00,886 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:47:00,886 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:47:00,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 03:47:00,886 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:47:00,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:47:00,887 INFO L85 PathProgramCache]: Analyzing trace with hash 964776261, now seen corresponding path program 1 times [2025-01-09 03:47:00,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:47:00,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129155142] [2025-01-09 03:47:00,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:00,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:47:00,901 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:47:00,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:47:00,909 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:00,909 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:01,036 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-09 03:47:01,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:47:01,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129155142] [2025-01-09 03:47:01,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129155142] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:47:01,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984517256] [2025-01-09 03:47:01,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:01,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:47:01,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:47:01,038 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:47:01,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 03:47:01,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:47:01,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:47:01,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:01,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:01,353 INFO L256 TraceCheckSpWp]: Trace formula consists of 1657 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:47:01,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:47:01,462 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:47:01,463 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:47:01,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984517256] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:47:01,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:47:01,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-01-09 03:47:01,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982954945] [2025-01-09 03:47:01,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:47:01,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:47:01,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:47:01,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:47:01,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:47:01,465 INFO L87 Difference]: Start difference. First operand 2921 states and 4820 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2025-01-09 03:47:02,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:47:02,175 INFO L93 Difference]: Finished difference Result 7928 states and 13295 transitions. [2025-01-09 03:47:02,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:47:02,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 127 [2025-01-09 03:47:02,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:47:02,209 INFO L225 Difference]: With dead ends: 7928 [2025-01-09 03:47:02,209 INFO L226 Difference]: Without dead ends: 5025 [2025-01-09 03:47:02,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:47:02,229 INFO L435 NwaCegarLoop]: 932 mSDtfsCounter, 781 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 4142 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:47:02,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 4142 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 03:47:02,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5025 states. [2025-01-09 03:47:02,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5025 to 4982. [2025-01-09 03:47:02,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4982 states, 3798 states have (on average 1.5850447604002107) internal successors, (6020), 3944 states have internal predecessors, (6020), 930 states have call successors, (930), 250 states have call predecessors, (930), 253 states have return successors, (1172), 917 states have call predecessors, (1172), 924 states have call successors, (1172) [2025-01-09 03:47:02,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4982 states to 4982 states and 8122 transitions. [2025-01-09 03:47:02,452 INFO L78 Accepts]: Start accepts. Automaton has 4982 states and 8122 transitions. Word has length 127 [2025-01-09 03:47:02,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:47:02,452 INFO L471 AbstractCegarLoop]: Abstraction has 4982 states and 8122 transitions. [2025-01-09 03:47:02,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 4 states have call successors, (18), 3 states have call predecessors, (18), 4 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2025-01-09 03:47:02,453 INFO L276 IsEmpty]: Start isEmpty. Operand 4982 states and 8122 transitions. [2025-01-09 03:47:02,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-01-09 03:47:02,457 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:47:02,457 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:47:02,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 03:47:02,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:47:02,662 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:47:02,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:47:02,663 INFO L85 PathProgramCache]: Analyzing trace with hash 248669751, now seen corresponding path program 1 times [2025-01-09 03:47:02,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:47:02,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095988454] [2025-01-09 03:47:02,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:02,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:47:02,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-01-09 03:47:02,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-01-09 03:47:02,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:02,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:02,858 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:47:02,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:47:02,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095988454] [2025-01-09 03:47:02,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095988454] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:47:02,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:47:02,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:47:02,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103184559] [2025-01-09 03:47:02,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:47:02,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:47:02,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:47:02,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:47:02,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:47:02,861 INFO L87 Difference]: Start difference. First operand 4982 states and 8122 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2025-01-09 03:47:03,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:47:03,658 INFO L93 Difference]: Finished difference Result 14879 states and 25017 transitions. [2025-01-09 03:47:03,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:47:03,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) Word has length 135 [2025-01-09 03:47:03,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:47:03,715 INFO L225 Difference]: With dead ends: 14879 [2025-01-09 03:47:03,715 INFO L226 Difference]: Without dead ends: 9915 [2025-01-09 03:47:03,733 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:47:03,734 INFO L435 NwaCegarLoop]: 988 mSDtfsCounter, 904 mSDsluCounter, 3581 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 4569 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:47:03,734 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 4569 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 03:47:03,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9915 states. [2025-01-09 03:47:03,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9915 to 9846. [2025-01-09 03:47:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9846 states, 7508 states have (on average 1.5808470964304742) internal successors, (11869), 7794 states have internal predecessors, (11869), 1832 states have call successors, (1832), 494 states have call predecessors, (1832), 505 states have return successors, (2726), 1817 states have call predecessors, (2726), 1822 states have call successors, (2726) [2025-01-09 03:47:04,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9846 states to 9846 states and 16427 transitions. [2025-01-09 03:47:04,130 INFO L78 Accepts]: Start accepts. Automaton has 9846 states and 16427 transitions. Word has length 135 [2025-01-09 03:47:04,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:47:04,134 INFO L471 AbstractCegarLoop]: Abstraction has 9846 states and 16427 transitions. [2025-01-09 03:47:04,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (17), 4 states have call predecessors, (17), 3 states have call successors, (17) [2025-01-09 03:47:04,134 INFO L276 IsEmpty]: Start isEmpty. Operand 9846 states and 16427 transitions. [2025-01-09 03:47:04,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-01-09 03:47:04,142 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:47:04,142 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:47:04,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-01-09 03:47:04,142 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:47:04,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:47:04,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1311012171, now seen corresponding path program 1 times [2025-01-09 03:47:04,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:47:04,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219320258] [2025-01-09 03:47:04,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:04,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:47:04,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-01-09 03:47:04,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-01-09 03:47:04,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:04,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-09 03:47:04,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:47:04,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219320258] [2025-01-09 03:47:04,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219320258] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:47:04,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:47:04,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:47:04,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186008578] [2025-01-09 03:47:04,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:47:04,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:47:04,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:47:04,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:47:04,261 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:47:04,262 INFO L87 Difference]: Start difference. First operand 9846 states and 16427 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:47:04,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:47:04,715 INFO L93 Difference]: Finished difference Result 19746 states and 33427 transitions. [2025-01-09 03:47:04,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:47:04,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 136 [2025-01-09 03:47:04,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:47:04,792 INFO L225 Difference]: With dead ends: 19746 [2025-01-09 03:47:04,792 INFO L226 Difference]: Without dead ends: 9918 [2025-01-09 03:47:04,845 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:47:04,846 INFO L435 NwaCegarLoop]: 898 mSDtfsCounter, 12 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:47:04,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2670 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:47:04,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9918 states. [2025-01-09 03:47:05,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9918 to 9886. [2025-01-09 03:47:05,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9886 states, 7544 states have (on average 1.5786055143160127) internal successors, (11909), 7822 states have internal predecessors, (11909), 1832 states have call successors, (1832), 510 states have call predecessors, (1832), 509 states have return successors, (2710), 1813 states have call predecessors, (2710), 1822 states have call successors, (2710) [2025-01-09 03:47:05,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9886 states to 9886 states and 16451 transitions. [2025-01-09 03:47:05,254 INFO L78 Accepts]: Start accepts. Automaton has 9886 states and 16451 transitions. Word has length 136 [2025-01-09 03:47:05,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:47:05,255 INFO L471 AbstractCegarLoop]: Abstraction has 9886 states and 16451 transitions. [2025-01-09 03:47:05,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:47:05,256 INFO L276 IsEmpty]: Start isEmpty. Operand 9886 states and 16451 transitions. [2025-01-09 03:47:05,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-01-09 03:47:05,261 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:47:05,261 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:47:05,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2025-01-09 03:47:05,262 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:47:05,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:47:05,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1607607284, now seen corresponding path program 1 times [2025-01-09 03:47:05,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:47:05,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607275162] [2025-01-09 03:47:05,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:05,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:47:05,276 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-09 03:47:05,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-09 03:47:05,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:05,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:47:05,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:47:05,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607275162] [2025-01-09 03:47:05,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607275162] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:47:05,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:47:05,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:47:05,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145115752] [2025-01-09 03:47:05,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:47:05,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:47:05,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:47:05,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:47:05,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:47:05,396 INFO L87 Difference]: Start difference. First operand 9886 states and 16451 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:47:06,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:47:06,443 INFO L93 Difference]: Finished difference Result 29669 states and 51595 transitions. [2025-01-09 03:47:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:47:06,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 145 [2025-01-09 03:47:06,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:47:06,635 INFO L225 Difference]: With dead ends: 29669 [2025-01-09 03:47:06,636 INFO L226 Difference]: Without dead ends: 19801 [2025-01-09 03:47:06,679 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:47:06,680 INFO L435 NwaCegarLoop]: 989 mSDtfsCounter, 899 mSDsluCounter, 3595 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 4584 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:47:06,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 4584 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:47:06,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19801 states. [2025-01-09 03:47:07,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19801 to 19700. [2025-01-09 03:47:07,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19700 states, 15036 states have (on average 1.5750864591646714) internal successors, (23683), 15586 states have internal predecessors, (23683), 3642 states have call successors, (3642), 1014 states have call predecessors, (3642), 1021 states have return successors, (6611), 3619 states have call predecessors, (6611), 3624 states have call successors, (6611) [2025-01-09 03:47:07,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19700 states to 19700 states and 33936 transitions. [2025-01-09 03:47:07,616 INFO L78 Accepts]: Start accepts. Automaton has 19700 states and 33936 transitions. Word has length 145 [2025-01-09 03:47:07,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:47:07,618 INFO L471 AbstractCegarLoop]: Abstraction has 19700 states and 33936 transitions. [2025-01-09 03:47:07,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 5 states have internal predecessors, (89), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:47:07,618 INFO L276 IsEmpty]: Start isEmpty. Operand 19700 states and 33936 transitions. [2025-01-09 03:47:07,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-01-09 03:47:07,623 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:47:07,623 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:47:07,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2025-01-09 03:47:07,623 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:47:07,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:47:07,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1688398198, now seen corresponding path program 1 times [2025-01-09 03:47:07,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:47:07,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130916417] [2025-01-09 03:47:07,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:07,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:47:07,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-01-09 03:47:07,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-01-09 03:47:07,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:07,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:07,730 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-01-09 03:47:07,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:47:07,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130916417] [2025-01-09 03:47:07,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130916417] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:47:07,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:47:07,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:47:07,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671896139] [2025-01-09 03:47:07,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:47:07,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:47:07,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:47:07,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:47:07,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:47:07,732 INFO L87 Difference]: Start difference. First operand 19700 states and 33936 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:47:08,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:47:08,781 INFO L93 Difference]: Finished difference Result 39526 states and 69656 transitions. [2025-01-09 03:47:08,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:47:08,781 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 146 [2025-01-09 03:47:08,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:47:09,051 INFO L225 Difference]: With dead ends: 39526 [2025-01-09 03:47:09,051 INFO L226 Difference]: Without dead ends: 19844 [2025-01-09 03:47:09,150 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:47:09,150 INFO L435 NwaCegarLoop]: 898 mSDtfsCounter, 11 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:47:09,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2670 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:47:09,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19844 states. [2025-01-09 03:47:09,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19844 to 19780. [2025-01-09 03:47:09,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19780 states, 15108 states have (on average 1.5728752978554408) internal successors, (23763), 15658 states have internal predecessors, (23763), 3642 states have call successors, (3642), 1030 states have call predecessors, (3642), 1029 states have return successors, (6591), 3611 states have call predecessors, (6591), 3624 states have call successors, (6591) [2025-01-09 03:47:09,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19780 states to 19780 states and 33996 transitions. [2025-01-09 03:47:09,948 INFO L78 Accepts]: Start accepts. Automaton has 19780 states and 33996 transitions. Word has length 146 [2025-01-09 03:47:09,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:47:09,949 INFO L471 AbstractCegarLoop]: Abstraction has 19780 states and 33996 transitions. [2025-01-09 03:47:09,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:47:09,950 INFO L276 IsEmpty]: Start isEmpty. Operand 19780 states and 33996 transitions. [2025-01-09 03:47:09,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-01-09 03:47:09,958 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:47:09,958 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2025-01-09 03:47:09,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-01-09 03:47:09,958 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:47:09,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:47:09,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1633980711, now seen corresponding path program 1 times [2025-01-09 03:47:09,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:47:09,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507779462] [2025-01-09 03:47:09,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:09,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:47:09,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 03:47:09,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 03:47:09,981 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:09,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:10,088 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-01-09 03:47:10,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:47:10,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507779462] [2025-01-09 03:47:10,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507779462] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:47:10,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:47:10,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:47:10,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069840089] [2025-01-09 03:47:10,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:47:10,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:47:10,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:47:10,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:47:10,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:47:10,091 INFO L87 Difference]: Start difference. First operand 19780 states and 33996 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2025-01-09 03:47:11,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:47:11,720 INFO L93 Difference]: Finished difference Result 59477 states and 109285 transitions. [2025-01-09 03:47:11,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:47:11,721 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) Word has length 156 [2025-01-09 03:47:11,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:47:11,969 INFO L225 Difference]: With dead ends: 59477 [2025-01-09 03:47:11,969 INFO L226 Difference]: Without dead ends: 39715 [2025-01-09 03:47:12,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:47:12,152 INFO L435 NwaCegarLoop]: 982 mSDtfsCounter, 895 mSDsluCounter, 3585 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 4567 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:47:12,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 4567 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 03:47:12,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39715 states. [2025-01-09 03:47:13,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39715 to 39550. [2025-01-09 03:47:14,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39550 states, 30212 states have (on average 1.570402489077188) internal successors, (47445), 31306 states have internal predecessors, (47445), 7268 states have call successors, (7268), 2054 states have call predecessors, (7268), 2069 states have return successors, (16832), 7229 states have call predecessors, (16832), 7234 states have call successors, (16832) [2025-01-09 03:47:14,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39550 states to 39550 states and 71545 transitions. [2025-01-09 03:47:14,694 INFO L78 Accepts]: Start accepts. Automaton has 39550 states and 71545 transitions. Word has length 156 [2025-01-09 03:47:14,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:47:14,694 INFO L471 AbstractCegarLoop]: Abstraction has 39550 states and 71545 transitions. [2025-01-09 03:47:14,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 4 states have call predecessors, (19), 3 states have call successors, (19) [2025-01-09 03:47:14,695 INFO L276 IsEmpty]: Start isEmpty. Operand 39550 states and 71545 transitions. [2025-01-09 03:47:14,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-01-09 03:47:14,700 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:47:14,701 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2025-01-09 03:47:14,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-01-09 03:47:14,701 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:47:14,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:47:14,702 INFO L85 PathProgramCache]: Analyzing trace with hash -588997397, now seen corresponding path program 1 times [2025-01-09 03:47:14,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:47:14,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37604646] [2025-01-09 03:47:14,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:14,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:47:14,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-01-09 03:47:14,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-01-09 03:47:14,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:14,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:14,803 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-01-09 03:47:14,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:47:14,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37604646] [2025-01-09 03:47:14,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37604646] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:47:14,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:47:14,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:47:14,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125144740] [2025-01-09 03:47:14,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:47:14,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:47:14,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:47:14,805 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:47:14,805 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:47:14,805 INFO L87 Difference]: Start difference. First operand 39550 states and 71545 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:47:17,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:47:17,425 INFO L93 Difference]: Finished difference Result 79402 states and 148817 transitions. [2025-01-09 03:47:17,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:47:17,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 157 [2025-01-09 03:47:17,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:47:17,691 INFO L225 Difference]: With dead ends: 79402 [2025-01-09 03:47:17,691 INFO L226 Difference]: Without dead ends: 39870 [2025-01-09 03:47:18,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:47:18,137 INFO L435 NwaCegarLoop]: 898 mSDtfsCounter, 10 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2670 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:47:18,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2670 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:47:18,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39870 states. [2025-01-09 03:47:19,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39870 to 39742. [2025-01-09 03:47:19,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39742 states, 30388 states have (on average 1.5676253784388574) internal successors, (47637), 31482 states have internal predecessors, (47637), 7268 states have call successors, (7268), 2086 states have call predecessors, (7268), 2085 states have return successors, (16816), 7213 states have call predecessors, (16816), 7234 states have call successors, (16816) [2025-01-09 03:47:20,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39742 states to 39742 states and 71721 transitions. [2025-01-09 03:47:20,154 INFO L78 Accepts]: Start accepts. Automaton has 39742 states and 71721 transitions. Word has length 157 [2025-01-09 03:47:20,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:47:20,155 INFO L471 AbstractCegarLoop]: Abstraction has 39742 states and 71721 transitions. [2025-01-09 03:47:20,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:47:20,155 INFO L276 IsEmpty]: Start isEmpty. Operand 39742 states and 71721 transitions. [2025-01-09 03:47:20,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-01-09 03:47:20,165 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:47:20,166 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 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] [2025-01-09 03:47:20,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-01-09 03:47:20,166 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:47:20,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:47:20,166 INFO L85 PathProgramCache]: Analyzing trace with hash 943826196, now seen corresponding path program 1 times [2025-01-09 03:47:20,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:47:20,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123386010] [2025-01-09 03:47:20,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:20,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:47:20,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:47:20,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:47:20,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:20,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:20,372 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2025-01-09 03:47:20,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:47:20,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123386010] [2025-01-09 03:47:20,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123386010] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:47:20,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604768403] [2025-01-09 03:47:20,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:20,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:47:20,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:47:20,375 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:47:20,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 03:47:20,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:47:20,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:47:20,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:20,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:20,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 1750 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:47:20,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:47:20,700 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2025-01-09 03:47:20,701 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:47:20,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604768403] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:47:20,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:47:20,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-01-09 03:47:20,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646467714] [2025-01-09 03:47:20,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:47:20,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:47:20,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:47:20,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:47:20,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:47:20,706 INFO L87 Difference]: Start difference. First operand 39742 states and 71721 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 03:47:24,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:47:24,570 INFO L93 Difference]: Finished difference Result 118063 states and 216639 transitions. [2025-01-09 03:47:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:47:24,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 168 [2025-01-09 03:47:24,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:47:25,131 INFO L225 Difference]: With dead ends: 118063 [2025-01-09 03:47:25,131 INFO L226 Difference]: Without dead ends: 78370 [2025-01-09 03:47:25,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:47:25,372 INFO L435 NwaCegarLoop]: 930 mSDtfsCounter, 905 mSDsluCounter, 894 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 905 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:47:25,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [905 Valid, 1824 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:47:25,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78370 states. [2025-01-09 03:47:28,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78370 to 77805. [2025-01-09 03:47:28,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77805 states, 59686 states have (on average 1.5709546627349797) internal successors, (93764), 61759 states have internal predecessors, (93764), 14049 states have call successors, (14049), 4038 states have call predecessors, (14049), 4069 states have return successors, (33271), 14055 states have call predecessors, (33271), 13983 states have call successors, (33271) [2025-01-09 03:47:29,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77805 states to 77805 states and 141084 transitions. [2025-01-09 03:47:29,563 INFO L78 Accepts]: Start accepts. Automaton has 77805 states and 141084 transitions. Word has length 168 [2025-01-09 03:47:29,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:47:29,564 INFO L471 AbstractCegarLoop]: Abstraction has 77805 states and 141084 transitions. [2025-01-09 03:47:29,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 03:47:29,565 INFO L276 IsEmpty]: Start isEmpty. Operand 77805 states and 141084 transitions. [2025-01-09 03:47:29,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-01-09 03:47:29,570 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:47:29,570 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 3, 3, 3, 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] [2025-01-09 03:47:29,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 03:47:29,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-01-09 03:47:29,776 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:47:29,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:47:29,777 INFO L85 PathProgramCache]: Analyzing trace with hash 357020182, now seen corresponding path program 1 times [2025-01-09 03:47:29,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:47:29,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777718489] [2025-01-09 03:47:29,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:29,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:47:29,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:47:29,810 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:47:29,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:29,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:29,953 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2025-01-09 03:47:29,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:47:29,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777718489] [2025-01-09 03:47:29,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777718489] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:47:29,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674747886] [2025-01-09 03:47:29,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:47:29,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:47:29,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:47:29,958 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:47:29,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 03:47:30,092 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:47:30,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:47:30,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:47:30,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:47:30,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 1749 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:47:30,241 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:47:30,333 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-09 03:47:30,334 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:47:30,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674747886] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:47:30,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:47:30,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2025-01-09 03:47:30,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828691288] [2025-01-09 03:47:30,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:47:30,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:47:30,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:47:30,334 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:47:30,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:47:30,335 INFO L87 Difference]: Start difference. First operand 77805 states and 141084 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 4 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2025-01-09 03:47:37,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:47:37,678 INFO L93 Difference]: Finished difference Result 191315 states and 371571 transitions. [2025-01-09 03:47:37,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:47:37,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 5 states have internal predecessors, (107), 4 states have call successors, (22), 3 states have call predecessors, (22), 4 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 168 [2025-01-09 03:47:37,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:47:38,663 INFO L225 Difference]: With dead ends: 191315 [2025-01-09 03:47:38,666 INFO L226 Difference]: Without dead ends: 113480 [2025-01-09 03:47:39,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:47:39,715 INFO L435 NwaCegarLoop]: 909 mSDtfsCounter, 903 mSDsluCounter, 3288 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 4197 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:47:39,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [911 Valid, 4197 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 03:47:39,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113480 states.