./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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_spec2_product32.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 256d604ca5845ed70fae4c0c59880096896900821991ad09252cbc35739a584c --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 15:36:26,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 15:36:26,159 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 15:36:26,165 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 15:36:26,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 15:36:26,183 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 15:36:26,184 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 15:36:26,184 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 15:36:26,184 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 15:36:26,184 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 15:36:26,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 15:36:26,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 15:36:26,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 15:36:26,185 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 15:36:26,185 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 15:36:26,185 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 15:36:26,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 15:36:26,185 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 15:36:26,185 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 15:36:26,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 15:36:26,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 15:36:26,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 15:36:26,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 15:36:26,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 15:36:26,186 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 15:36:26,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 15:36:26,186 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 15:36:26,186 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 15:36:26,186 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 15:36:26,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 15:36:26,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 15:36:26,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 15:36:26,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:36:26,187 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 15:36:26,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 15:36:26,187 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 15:36:26,187 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 15:36:26,187 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 15:36:26,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 15:36:26,187 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 15:36:26,187 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 15:36:26,187 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 15:36:26,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 15:36:26,187 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 -> 256d604ca5845ed70fae4c0c59880096896900821991ad09252cbc35739a584c [2025-02-05 15:36:26,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 15:36:26,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 15:36:26,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 15:36:26,433 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 15:36:26,434 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 15:36:26,434 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product32.cil.c [2025-02-05 15:36:27,607 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e250730c/7cdebb73aa184831abcd24d4ccfc1a61/FLAGd37982efb [2025-02-05 15:36:27,978 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 15:36:27,981 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product32.cil.c [2025-02-05 15:36:28,004 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e250730c/7cdebb73aa184831abcd24d4ccfc1a61/FLAGd37982efb [2025-02-05 15:36:28,201 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1e250730c/7cdebb73aa184831abcd24d4ccfc1a61 [2025-02-05 15:36:28,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 15:36:28,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 15:36:28,212 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 15:36:28,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 15:36:28,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 15:36:28,224 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:36:28" (1/1) ... [2025-02-05 15:36:28,224 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac37ef6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:28, skipping insertion in model container [2025-02-05 15:36:28,224 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:36:28" (1/1) ... [2025-02-05 15:36:28,289 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 15:36:28,766 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_spec2_product32.cil.c[40079,40092] [2025-02-05 15:36:28,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:36:28,928 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 15:36:28,939 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [48] [2025-02-05 15:36:28,940 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [236] [2025-02-05 15:36:28,940 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [904] [2025-02-05 15:36:28,941 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1270] [2025-02-05 15:36:28,941 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1308] [2025-02-05 15:36:28,941 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1406] [2025-02-05 15:36:28,941 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1420] [2025-02-05 15:36:28,941 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1540] [2025-02-05 15:36:28,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1891] [2025-02-05 15:36:28,942 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1900] [2025-02-05 15:36:29,002 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_spec2_product32.cil.c[40079,40092] [2025-02-05 15:36:29,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:36:29,062 INFO L204 MainTranslator]: Completed translation [2025-02-05 15:36:29,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29 WrapperNode [2025-02-05 15:36:29,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 15:36:29,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 15:36:29,065 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 15:36:29,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 15:36:29,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (1/1) ... [2025-02-05 15:36:29,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (1/1) ... [2025-02-05 15:36:29,109 INFO L138 Inliner]: procedures = 99, calls = 355, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 977 [2025-02-05 15:36:29,109 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 15:36:29,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 15:36:29,110 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 15:36:29,110 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 15:36:29,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (1/1) ... [2025-02-05 15:36:29,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (1/1) ... [2025-02-05 15:36:29,125 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (1/1) ... [2025-02-05 15:36:29,154 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2025-02-05 15:36:29,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (1/1) ... [2025-02-05 15:36:29,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (1/1) ... [2025-02-05 15:36:29,171 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (1/1) ... [2025-02-05 15:36:29,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (1/1) ... [2025-02-05 15:36:29,175 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (1/1) ... [2025-02-05 15:36:29,177 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (1/1) ... [2025-02-05 15:36:29,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 15:36:29,182 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 15:36:29,182 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 15:36:29,182 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 15:36:29,183 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (1/1) ... [2025-02-05 15:36:29,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:36:29,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:36:29,215 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) [2025-02-05 15:36:29,223 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 [2025-02-05 15:36:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-02-05 15:36:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-02-05 15:36:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-02-05 15:36:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-02-05 15:36:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-02-05 15:36:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-02-05 15:36:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2025-02-05 15:36:29,237 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2025-02-05 15:36:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-02-05 15:36:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-02-05 15:36:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-02-05 15:36:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-02-05 15:36:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-02-05 15:36:29,238 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-02-05 15:36:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-02-05 15:36:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-02-05 15:36:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2025-02-05 15:36:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2025-02-05 15:36:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-02-05 15:36:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-02-05 15:36:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-02-05 15:36:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-02-05 15:36:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 15:36:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-02-05 15:36:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-02-05 15:36:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-02-05 15:36:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-02-05 15:36:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-02-05 15:36:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-02-05 15:36:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-02-05 15:36:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-02-05 15:36:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-02-05 15:36:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-02-05 15:36:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2025-02-05 15:36:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2025-02-05 15:36:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-02-05 15:36:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-02-05 15:36:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-02-05 15:36:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-02-05 15:36:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-02-05 15:36:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-02-05 15:36:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-02-05 15:36:29,241 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-02-05 15:36:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-02-05 15:36:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-02-05 15:36:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-02-05 15:36:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-02-05 15:36:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-02-05 15:36:29,242 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-02-05 15:36:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 15:36:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 15:36:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-05 15:36:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-05 15:36:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-05 15:36:29,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-02-05 15:36:29,244 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-02-05 15:36:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-02-05 15:36:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 15:36:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 15:36:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-02-05 15:36:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-02-05 15:36:29,245 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2025-02-05 15:36:29,245 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2025-02-05 15:36:29,398 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 15:36:29,402 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 15:36:29,466 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2847-1: stopRequestedAtCurrentFloor__wrappee__empty_#res#1 := stopRequestedAtCurrentFloor__wrappee__empty_~retValue_acc~25#1; [2025-02-05 15:36:29,467 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2875: #res#1 := ~retValue_acc~26#1; [2025-02-05 15:36:29,484 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1459: #res := ~retValue_acc~8; [2025-02-05 15:36:29,516 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3550: #res := ~retValue_acc~30; [2025-02-05 15:36:29,575 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2728-1: stopRequestedInDirection__wrappee__twothirdsfull_#res#1 := stopRequestedInDirection__wrappee__twothirdsfull_~retValue_acc~22#1; [2025-02-05 15:36:29,575 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2757: #res#1 := ~retValue_acc~23#1; [2025-02-05 15:36:29,575 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2791-1: isAnyLiftButtonPressed_#res#1 := isAnyLiftButtonPressed_~retValue_acc~24#1; [2025-02-05 15:36:29,586 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2920: #res := ~retValue_acc~28; [2025-02-05 15:36:29,744 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2688: #res := ~retValue_acc~21; [2025-02-05 15:36:29,870 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2323-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~19#1; [2025-02-05 15:36:29,870 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2336-1: isIdle_#res#1 := isIdle_~retValue_acc~20#1; [2025-02-05 15:36:29,873 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2160: #res := ~retValue_acc~15; [2025-02-05 15:36:29,878 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L901: #res := ~retValue_acc~2; [2025-02-05 15:36:29,889 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1537: #res := ~retValue_acc~10; [2025-02-05 15:36:29,892 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1974: #res := ~retValue_acc~13; [2025-02-05 15:36:29,894 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2151: #res := ~retValue_acc~14; [2025-02-05 15:36:30,024 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1498: #res := ~retValue_acc~9; [2025-02-05 15:36:30,040 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2194: #res := ~retValue_acc~16; [2025-02-05 15:36:30,080 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2243-1: isEmpty_#res#1 := isEmpty_~retValue_acc~18#1; [2025-02-05 15:36:30,133 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L590: #res := ~retValue_acc~1; [2025-02-05 15:36:30,206 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1305-1: valid_product_#res#1 := valid_product_~retValue_acc~7#1; [2025-02-05 15:36:30,206 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1888-1: main_#res#1 := main_~retValue_acc~12#1; [2025-02-05 15:36:30,241 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L354: #res := ~retValue_acc~0; [2025-02-05 15:36:30,330 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2906-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~27#1; [2025-02-05 15:36:30,480 INFO L? ?]: Removed 485 outVars from TransFormulas that were not future-live. [2025-02-05 15:36:30,481 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 15:36:30,495 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 15:36:30,496 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 15:36:30,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:36:30 BoogieIcfgContainer [2025-02-05 15:36:30,496 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 15:36:30,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 15:36:30,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 15:36:30,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 15:36:30,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 03:36:28" (1/3) ... [2025-02-05 15:36:30,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75eea3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:36:30, skipping insertion in model container [2025-02-05 15:36:30,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:36:29" (2/3) ... [2025-02-05 15:36:30,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75eea3e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:36:30, skipping insertion in model container [2025-02-05 15:36:30,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:36:30" (3/3) ... [2025-02-05 15:36:30,502 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product32.cil.c [2025-02-05 15:36:30,513 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 15:36:30,519 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product32.cil.c that has 28 procedures, 605 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 15:36:30,572 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 15:36:30,579 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;@3a9fc0b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 15:36:30,579 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 15:36:30,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 605 states, 470 states have (on average 1.676595744680851) internal successors, (788), 494 states have internal predecessors, (788), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) [2025-02-05 15:36:30,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2025-02-05 15:36:30,597 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:30,598 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:30,598 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:30,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:30,603 INFO L85 PathProgramCache]: Analyzing trace with hash -53179354, now seen corresponding path program 1 times [2025-02-05 15:36:30,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:30,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116863499] [2025-02-05 15:36:30,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:30,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:30,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 78 statements into 1 equivalence classes. [2025-02-05 15:36:30,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 78 of 78 statements. [2025-02-05 15:36:30,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:30,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:30,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:30,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:30,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116863499] [2025-02-05 15:36:30,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116863499] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:30,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:30,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:36:30,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577445077] [2025-02-05 15:36:30,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:31,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:36:31,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:31,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:36:31,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:36:31,017 INFO L87 Difference]: Start difference. First operand has 605 states, 470 states have (on average 1.676595744680851) internal successors, (788), 494 states have internal predecessors, (788), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (105), 98 states have call predecessors, (105), 105 states have call successors, (105) Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:31,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:31,154 INFO L93 Difference]: Finished difference Result 1190 states and 1970 transitions. [2025-02-05 15:36:31,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:36:31,156 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 78 [2025-02-05 15:36:31,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:31,167 INFO L225 Difference]: With dead ends: 1190 [2025-02-05 15:36:31,168 INFO L226 Difference]: Without dead ends: 596 [2025-02-05 15:36:31,174 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 [2025-02-05 15:36:31,175 INFO L435 NwaCegarLoop]: 978 mSDtfsCounter, 5 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2930 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:31,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2930 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:36:31,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2025-02-05 15:36:31,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2025-02-05 15:36:31,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 464 states have (on average 1.6702586206896552) internal successors, (775), 485 states have internal predecessors, (775), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:31,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 980 transitions. [2025-02-05 15:36:31,246 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 980 transitions. Word has length 78 [2025-02-05 15:36:31,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:31,246 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 980 transitions. [2025-02-05 15:36:31,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:31,247 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 980 transitions. [2025-02-05 15:36:31,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-02-05 15:36:31,250 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:31,250 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:31,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 15:36:31,251 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:31,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:31,251 INFO L85 PathProgramCache]: Analyzing trace with hash 1676491053, now seen corresponding path program 1 times [2025-02-05 15:36:31,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:31,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988858222] [2025-02-05 15:36:31,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:31,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:31,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-02-05 15:36:31,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-02-05 15:36:31,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:31,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:31,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:31,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:31,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988858222] [2025-02-05 15:36:31,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988858222] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:31,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:31,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:36:31,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639498413] [2025-02-05 15:36:31,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:31,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:36:31,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:31,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:36:31,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:36:31,440 INFO L87 Difference]: Start difference. First operand 596 states and 980 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:31,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:31,503 INFO L93 Difference]: Finished difference Result 1174 states and 1937 transitions. [2025-02-05 15:36:31,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:36:31,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2025-02-05 15:36:31,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:31,509 INFO L225 Difference]: With dead ends: 1174 [2025-02-05 15:36:31,509 INFO L226 Difference]: Without dead ends: 596 [2025-02-05 15:36:31,512 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 [2025-02-05 15:36:31,512 INFO L435 NwaCegarLoop]: 969 mSDtfsCounter, 4 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:31,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2903 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:36:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2025-02-05 15:36:31,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2025-02-05 15:36:31,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 464 states have (on average 1.668103448275862) internal successors, (774), 485 states have internal predecessors, (774), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:31,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 979 transitions. [2025-02-05 15:36:31,539 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 979 transitions. Word has length 79 [2025-02-05 15:36:31,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:31,539 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 979 transitions. [2025-02-05 15:36:31,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:31,539 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 979 transitions. [2025-02-05 15:36:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-05 15:36:31,542 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:31,542 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:31,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 15:36:31,542 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:31,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:31,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1835614813, now seen corresponding path program 1 times [2025-02-05 15:36:31,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:31,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144226001] [2025-02-05 15:36:31,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:31,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:31,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-05 15:36:31,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-05 15:36:31,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:31,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:31,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:31,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:31,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144226001] [2025-02-05 15:36:31,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144226001] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:31,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:31,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:36:31,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326570064] [2025-02-05 15:36:31,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:31,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:36:31,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:31,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:36:31,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:36:31,712 INFO L87 Difference]: Start difference. First operand 596 states and 979 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:31,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:31,788 INFO L93 Difference]: Finished difference Result 1174 states and 1936 transitions. [2025-02-05 15:36:31,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:36:31,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 80 [2025-02-05 15:36:31,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:31,797 INFO L225 Difference]: With dead ends: 1174 [2025-02-05 15:36:31,798 INFO L226 Difference]: Without dead ends: 596 [2025-02-05 15:36:31,801 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 [2025-02-05 15:36:31,802 INFO L435 NwaCegarLoop]: 969 mSDtfsCounter, 3 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2903 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 [2025-02-05 15:36:31,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2903 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:36:31,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2025-02-05 15:36:31,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2025-02-05 15:36:31,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 464 states have (on average 1.665948275862069) internal successors, (773), 485 states have internal predecessors, (773), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:31,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 978 transitions. [2025-02-05 15:36:31,832 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 978 transitions. Word has length 80 [2025-02-05 15:36:31,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:31,832 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 978 transitions. [2025-02-05 15:36:31,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:31,832 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 978 transitions. [2025-02-05 15:36:31,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-02-05 15:36:31,837 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:31,837 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:31,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 15:36:31,837 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:31,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:31,840 INFO L85 PathProgramCache]: Analyzing trace with hash -339060598, now seen corresponding path program 1 times [2025-02-05 15:36:31,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:31,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421131763] [2025-02-05 15:36:31,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:31,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:31,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-05 15:36:31,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-05 15:36:31,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:31,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:32,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:32,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:32,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421131763] [2025-02-05 15:36:32,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421131763] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:32,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:32,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:36:32,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211011377] [2025-02-05 15:36:32,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:32,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:36:32,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:32,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:36:32,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:36:32,013 INFO L87 Difference]: Start difference. First operand 596 states and 978 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:32,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:32,066 INFO L93 Difference]: Finished difference Result 1174 states and 1935 transitions. [2025-02-05 15:36:32,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:36:32,066 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 81 [2025-02-05 15:36:32,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:32,072 INFO L225 Difference]: With dead ends: 1174 [2025-02-05 15:36:32,072 INFO L226 Difference]: Without dead ends: 596 [2025-02-05 15:36:32,075 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 [2025-02-05 15:36:32,077 INFO L435 NwaCegarLoop]: 969 mSDtfsCounter, 2 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:32,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2903 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:36:32,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2025-02-05 15:36:32,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2025-02-05 15:36:32,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 464 states have (on average 1.6637931034482758) internal successors, (772), 485 states have internal predecessors, (772), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:32,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 977 transitions. [2025-02-05 15:36:32,115 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 977 transitions. Word has length 81 [2025-02-05 15:36:32,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:32,116 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 977 transitions. [2025-02-05 15:36:32,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:32,117 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 977 transitions. [2025-02-05 15:36:32,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-02-05 15:36:32,119 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:32,119 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:32,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 15:36:32,119 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:32,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:32,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1807133472, now seen corresponding path program 1 times [2025-02-05 15:36:32,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:32,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41435802] [2025-02-05 15:36:32,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:32,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:32,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-05 15:36:32,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-05 15:36:32,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:32,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:32,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:32,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:32,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41435802] [2025-02-05 15:36:32,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41435802] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:32,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:32,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:36:32,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934637124] [2025-02-05 15:36:32,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:32,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:36:32,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:32,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:36:32,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:36:32,238 INFO L87 Difference]: Start difference. First operand 596 states and 977 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:32,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:32,281 INFO L93 Difference]: Finished difference Result 1174 states and 1934 transitions. [2025-02-05 15:36:32,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:36:32,281 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 82 [2025-02-05 15:36:32,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:32,286 INFO L225 Difference]: With dead ends: 1174 [2025-02-05 15:36:32,286 INFO L226 Difference]: Without dead ends: 596 [2025-02-05 15:36:32,288 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 [2025-02-05 15:36:32,289 INFO L435 NwaCegarLoop]: 969 mSDtfsCounter, 1 mSDsluCounter, 1934 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:32,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2903 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:36:32,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2025-02-05 15:36:32,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2025-02-05 15:36:32,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 464 states have (on average 1.6616379310344827) internal successors, (771), 485 states have internal predecessors, (771), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 976 transitions. [2025-02-05 15:36:32,315 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 976 transitions. Word has length 82 [2025-02-05 15:36:32,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:32,315 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 976 transitions. [2025-02-05 15:36:32,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:32,315 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 976 transitions. [2025-02-05 15:36:32,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-05 15:36:32,317 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:32,318 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:32,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 15:36:32,318 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:32,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:32,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1677640729, now seen corresponding path program 1 times [2025-02-05 15:36:32,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:32,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823069155] [2025-02-05 15:36:32,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:32,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:32,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-05 15:36:32,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-05 15:36:32,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:32,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:32,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:32,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:32,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823069155] [2025-02-05 15:36:32,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823069155] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:32,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:32,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-05 15:36:32,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557256028] [2025-02-05 15:36:32,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:32,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 15:36:32,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:32,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 15:36:32,518 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:36:32,518 INFO L87 Difference]: Start difference. First operand 596 states and 976 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-02-05 15:36:32,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:32,641 INFO L93 Difference]: Finished difference Result 1140 states and 1866 transitions. [2025-02-05 15:36:32,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:36:32,645 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 83 [2025-02-05 15:36:32,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:32,650 INFO L225 Difference]: With dead ends: 1140 [2025-02-05 15:36:32,651 INFO L226 Difference]: Without dead ends: 611 [2025-02-05 15:36:32,655 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:36:32,656 INFO L435 NwaCegarLoop]: 964 mSDtfsCounter, 91 mSDsluCounter, 6665 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 7629 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:32,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 7629 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:36:32,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2025-02-05 15:36:32,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 609. [2025-02-05 15:36:32,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 474 states have (on average 1.6582278481012658) internal successors, (786), 497 states have internal predecessors, (786), 106 states have call successors, (106), 27 states have call predecessors, (106), 28 states have return successors, (103), 98 states have call predecessors, (103), 101 states have call successors, (103) [2025-02-05 15:36:32,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 995 transitions. [2025-02-05 15:36:32,708 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 995 transitions. Word has length 83 [2025-02-05 15:36:32,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:32,709 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 995 transitions. [2025-02-05 15:36:32,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-02-05 15:36:32,709 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 995 transitions. [2025-02-05 15:36:32,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-05 15:36:32,713 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:32,713 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:32,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 15:36:32,713 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:32,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:32,715 INFO L85 PathProgramCache]: Analyzing trace with hash 103859206, now seen corresponding path program 1 times [2025-02-05 15:36:32,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:32,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169815925] [2025-02-05 15:36:32,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:32,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:32,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-05 15:36:32,734 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-05 15:36:32,734 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:32,734 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:32,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:32,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:32,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169815925] [2025-02-05 15:36:32,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169815925] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:32,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:32,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:36:32,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945446371] [2025-02-05 15:36:32,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:32,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:36:32,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:32,790 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:36:32,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:36:32,791 INFO L87 Difference]: Start difference. First operand 609 states and 995 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:32,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:32,827 INFO L93 Difference]: Finished difference Result 1192 states and 1960 transitions. [2025-02-05 15:36:32,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:36:32,827 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2025-02-05 15:36:32,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:32,831 INFO L225 Difference]: With dead ends: 1192 [2025-02-05 15:36:32,831 INFO L226 Difference]: Without dead ends: 590 [2025-02-05 15:36:32,833 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 [2025-02-05 15:36:32,833 INFO L435 NwaCegarLoop]: 970 mSDtfsCounter, 0 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2905 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:32,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2905 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:36:32,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2025-02-05 15:36:32,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 590. [2025-02-05 15:36:32,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 458 states have (on average 1.6528384279475983) internal successors, (757), 479 states have internal predecessors, (757), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:32,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 962 transitions. [2025-02-05 15:36:32,851 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 962 transitions. Word has length 83 [2025-02-05 15:36:32,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:32,851 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 962 transitions. [2025-02-05 15:36:32,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:32,851 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 962 transitions. [2025-02-05 15:36:32,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-05 15:36:32,853 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:32,853 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:32,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 15:36:32,853 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:32,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:32,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1201226405, now seen corresponding path program 1 times [2025-02-05 15:36:32,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:32,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901570209] [2025-02-05 15:36:32,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:32,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:32,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-05 15:36:32,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-05 15:36:32,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:32,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:32,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:32,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901570209] [2025-02-05 15:36:32,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901570209] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:32,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:32,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:36:32,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623812156] [2025-02-05 15:36:32,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:32,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:36:32,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:32,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:36:32,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:36:32,963 INFO L87 Difference]: Start difference. First operand 590 states and 962 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:33,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:33,134 INFO L93 Difference]: Finished difference Result 1137 states and 1858 transitions. [2025-02-05 15:36:33,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:36:33,134 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2025-02-05 15:36:33,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:33,139 INFO L225 Difference]: With dead ends: 1137 [2025-02-05 15:36:33,139 INFO L226 Difference]: Without dead ends: 599 [2025-02-05 15:36:33,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:36:33,142 INFO L435 NwaCegarLoop]: 919 mSDtfsCounter, 55 mSDsluCounter, 3647 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4566 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:33,142 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4566 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:36:33,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2025-02-05 15:36:33,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 590. [2025-02-05 15:36:33,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 458 states have (on average 1.6441048034934498) internal successors, (753), 479 states have internal predecessors, (753), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:33,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 958 transitions. [2025-02-05 15:36:33,160 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 958 transitions. Word has length 84 [2025-02-05 15:36:33,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:33,161 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 958 transitions. [2025-02-05 15:36:33,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:33,161 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 958 transitions. [2025-02-05 15:36:33,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-02-05 15:36:33,163 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:33,163 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:33,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 15:36:33,163 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:33,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:33,163 INFO L85 PathProgramCache]: Analyzing trace with hash 874571070, now seen corresponding path program 1 times [2025-02-05 15:36:33,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:33,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712056949] [2025-02-05 15:36:33,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:33,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:33,177 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-05 15:36:33,185 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-05 15:36:33,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:33,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:33,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:33,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:33,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712056949] [2025-02-05 15:36:33,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712056949] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:33,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:33,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:36:33,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817086638] [2025-02-05 15:36:33,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:33,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:36:33,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:33,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:36:33,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:36:33,268 INFO L87 Difference]: Start difference. First operand 590 states and 958 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:33,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:33,429 INFO L93 Difference]: Finished difference Result 1137 states and 1854 transitions. [2025-02-05 15:36:33,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:36:33,429 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 85 [2025-02-05 15:36:33,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:33,433 INFO L225 Difference]: With dead ends: 1137 [2025-02-05 15:36:33,433 INFO L226 Difference]: Without dead ends: 599 [2025-02-05 15:36:33,435 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:36:33,438 INFO L435 NwaCegarLoop]: 919 mSDtfsCounter, 54 mSDsluCounter, 3647 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4566 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:33,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4566 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:36:33,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2025-02-05 15:36:33,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 590. [2025-02-05 15:36:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 458 states have (on average 1.6353711790393013) internal successors, (749), 479 states have internal predecessors, (749), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:33,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 954 transitions. [2025-02-05 15:36:33,456 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 954 transitions. Word has length 85 [2025-02-05 15:36:33,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:33,456 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 954 transitions. [2025-02-05 15:36:33,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:33,456 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 954 transitions. [2025-02-05 15:36:33,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-02-05 15:36:33,457 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:33,457 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:33,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 15:36:33,458 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:33,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:33,458 INFO L85 PathProgramCache]: Analyzing trace with hash 878309310, now seen corresponding path program 1 times [2025-02-05 15:36:33,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:33,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429424110] [2025-02-05 15:36:33,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:33,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:33,470 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-05 15:36:33,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-05 15:36:33,477 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:33,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:33,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:33,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:33,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429424110] [2025-02-05 15:36:33,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429424110] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:33,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:33,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:36:33,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566551746] [2025-02-05 15:36:33,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:33,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:36:33,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:33,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:36:33,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:36:33,554 INFO L87 Difference]: Start difference. First operand 590 states and 954 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:33,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:33,678 INFO L93 Difference]: Finished difference Result 1137 states and 1850 transitions. [2025-02-05 15:36:33,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:36:33,679 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2025-02-05 15:36:33,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:33,682 INFO L225 Difference]: With dead ends: 1137 [2025-02-05 15:36:33,682 INFO L226 Difference]: Without dead ends: 599 [2025-02-05 15:36:33,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:36:33,685 INFO L435 NwaCegarLoop]: 918 mSDtfsCounter, 53 mSDsluCounter, 3630 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4548 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:33,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4548 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:36:33,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2025-02-05 15:36:33,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 590. [2025-02-05 15:36:33,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 458 states have (on average 1.6266375545851528) internal successors, (745), 479 states have internal predecessors, (745), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:33,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 950 transitions. [2025-02-05 15:36:33,701 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 950 transitions. Word has length 86 [2025-02-05 15:36:33,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:33,702 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 950 transitions. [2025-02-05 15:36:33,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:33,702 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 950 transitions. [2025-02-05 15:36:33,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-02-05 15:36:33,705 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:33,705 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:33,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 15:36:33,705 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:33,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:33,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1742790189, now seen corresponding path program 1 times [2025-02-05 15:36:33,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:33,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881067064] [2025-02-05 15:36:33,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:33,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:33,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-05 15:36:33,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-05 15:36:33,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:33,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:33,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:33,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:33,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881067064] [2025-02-05 15:36:33,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881067064] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:33,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:33,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 15:36:33,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951026389] [2025-02-05 15:36:33,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:33,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:36:33,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:33,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:36:33,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:36:33,812 INFO L87 Difference]: Start difference. First operand 590 states and 950 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-02-05 15:36:33,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:33,872 INFO L93 Difference]: Finished difference Result 1128 states and 1832 transitions. [2025-02-05 15:36:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:36:33,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 86 [2025-02-05 15:36:33,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:33,877 INFO L225 Difference]: With dead ends: 1128 [2025-02-05 15:36:33,877 INFO L226 Difference]: Without dead ends: 569 [2025-02-05 15:36:33,880 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 [2025-02-05 15:36:33,880 INFO L435 NwaCegarLoop]: 939 mSDtfsCounter, 84 mSDsluCounter, 4622 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5561 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:33,881 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5561 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:36:33,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2025-02-05 15:36:33,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2025-02-05 15:36:33,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 437 states have (on average 1.6270022883295194) internal successors, (711), 458 states have internal predecessors, (711), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:33,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 916 transitions. [2025-02-05 15:36:33,897 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 916 transitions. Word has length 86 [2025-02-05 15:36:33,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:33,897 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 916 transitions. [2025-02-05 15:36:33,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-02-05 15:36:33,898 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 916 transitions. [2025-02-05 15:36:33,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-02-05 15:36:33,899 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:33,899 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:33,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-05 15:36:33,900 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:33,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:33,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1072720705, now seen corresponding path program 1 times [2025-02-05 15:36:33,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:33,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852398523] [2025-02-05 15:36:33,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:33,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:33,913 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-05 15:36:33,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-05 15:36:33,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:33,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:34,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:34,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:34,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852398523] [2025-02-05 15:36:34,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852398523] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:34,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:34,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:36:34,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362206436] [2025-02-05 15:36:34,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:34,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:36:34,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:34,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:36:34,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:36:34,016 INFO L87 Difference]: Start difference. First operand 569 states and 916 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:34,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:34,078 INFO L93 Difference]: Finished difference Result 1107 states and 1798 transitions. [2025-02-05 15:36:34,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:36:34,079 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 87 [2025-02-05 15:36:34,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:34,083 INFO L225 Difference]: With dead ends: 1107 [2025-02-05 15:36:34,083 INFO L226 Difference]: Without dead ends: 569 [2025-02-05 15:36:34,085 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:36:34,086 INFO L435 NwaCegarLoop]: 899 mSDtfsCounter, 17 mSDsluCounter, 3587 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4486 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:34,086 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4486 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:36:34,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2025-02-05 15:36:34,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2025-02-05 15:36:34,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 437 states have (on average 1.6247139588100687) internal successors, (710), 458 states have internal predecessors, (710), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:34,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 915 transitions. [2025-02-05 15:36:34,103 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 915 transitions. Word has length 87 [2025-02-05 15:36:34,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:34,103 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 915 transitions. [2025-02-05 15:36:34,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:34,103 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 915 transitions. [2025-02-05 15:36:34,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-02-05 15:36:34,105 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:34,105 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:34,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-05 15:36:34,105 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:34,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:34,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1411934687, now seen corresponding path program 1 times [2025-02-05 15:36:34,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:34,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924769263] [2025-02-05 15:36:34,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:34,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:34,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-05 15:36:34,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-05 15:36:34,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:34,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:34,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:34,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:34,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924769263] [2025-02-05 15:36:34,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924769263] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:34,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:34,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:36:34,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472310921] [2025-02-05 15:36:34,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:34,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:36:34,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:34,201 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:36:34,201 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:36:34,201 INFO L87 Difference]: Start difference. First operand 569 states and 915 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:34,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:34,258 INFO L93 Difference]: Finished difference Result 1107 states and 1797 transitions. [2025-02-05 15:36:34,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:36:34,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 88 [2025-02-05 15:36:34,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:34,263 INFO L225 Difference]: With dead ends: 1107 [2025-02-05 15:36:34,263 INFO L226 Difference]: Without dead ends: 569 [2025-02-05 15:36:34,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:36:34,266 INFO L435 NwaCegarLoop]: 899 mSDtfsCounter, 16 mSDsluCounter, 3587 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4486 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:34,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4486 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:36:34,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2025-02-05 15:36:34,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2025-02-05 15:36:34,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 437 states have (on average 1.6224256292906178) internal successors, (709), 458 states have internal predecessors, (709), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:34,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 914 transitions. [2025-02-05 15:36:34,280 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 914 transitions. Word has length 88 [2025-02-05 15:36:34,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:34,280 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 914 transitions. [2025-02-05 15:36:34,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-02-05 15:36:34,281 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 914 transitions. [2025-02-05 15:36:34,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-02-05 15:36:34,283 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:34,283 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:34,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-05 15:36:34,283 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:34,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:34,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1048314556, now seen corresponding path program 1 times [2025-02-05 15:36:34,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:34,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837677874] [2025-02-05 15:36:34,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:34,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:34,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-02-05 15:36:34,301 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-02-05 15:36:34,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:34,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:34,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:34,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:34,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837677874] [2025-02-05 15:36:34,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837677874] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:34,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:34,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-05 15:36:34,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186762641] [2025-02-05 15:36:34,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:34,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-05 15:36:34,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:34,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-05 15:36:34,477 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:36:34,477 INFO L87 Difference]: Start difference. First operand 569 states and 914 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-02-05 15:36:34,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:34,572 INFO L93 Difference]: Finished difference Result 1101 states and 1785 transitions. [2025-02-05 15:36:34,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:36:34,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 89 [2025-02-05 15:36:34,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:34,577 INFO L225 Difference]: With dead ends: 1101 [2025-02-05 15:36:34,578 INFO L226 Difference]: Without dead ends: 569 [2025-02-05 15:36:34,580 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:36:34,581 INFO L435 NwaCegarLoop]: 898 mSDtfsCounter, 6 mSDsluCounter, 7162 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8060 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:34,581 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 8060 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:36:34,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2025-02-05 15:36:34,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 569. [2025-02-05 15:36:34,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 569 states, 437 states have (on average 1.620137299771167) internal successors, (708), 458 states have internal predecessors, (708), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 97 states have call predecessors, (100), 100 states have call successors, (100) [2025-02-05 15:36:34,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 569 states and 913 transitions. [2025-02-05 15:36:34,600 INFO L78 Accepts]: Start accepts. Automaton has 569 states and 913 transitions. Word has length 89 [2025-02-05 15:36:34,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:34,600 INFO L471 AbstractCegarLoop]: Abstraction has 569 states and 913 transitions. [2025-02-05 15:36:34,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-02-05 15:36:34,600 INFO L276 IsEmpty]: Start isEmpty. Operand 569 states and 913 transitions. [2025-02-05 15:36:34,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-02-05 15:36:34,602 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:34,602 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:34,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-05 15:36:34,603 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:34,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1153981260, now seen corresponding path program 1 times [2025-02-05 15:36:34,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:34,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961276590] [2025-02-05 15:36:34,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:34,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:34,618 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-05 15:36:34,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-05 15:36:34,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:34,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:34,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:36:34,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:34,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961276590] [2025-02-05 15:36:34,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961276590] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:34,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:34,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:36:34,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142462905] [2025-02-05 15:36:34,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:34,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:36:34,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:34,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:36:34,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:36:34,813 INFO L87 Difference]: Start difference. First operand 569 states and 913 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 6 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2025-02-05 15:36:36,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:36,687 INFO L93 Difference]: Finished difference Result 1756 states and 2880 transitions. [2025-02-05 15:36:36,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:36:36,687 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 6 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 90 [2025-02-05 15:36:36,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:36,695 INFO L225 Difference]: With dead ends: 1756 [2025-02-05 15:36:36,695 INFO L226 Difference]: Without dead ends: 1232 [2025-02-05 15:36:36,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:36:36,698 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 3359 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3433 SdHoareTripleChecker+Valid, 1035 SdHoareTripleChecker+Invalid, 2787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:36,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3433 Valid, 1035 Invalid, 2787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 1947 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-05 15:36:36,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2025-02-05 15:36:36,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1110. [2025-02-05 15:36:36,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 857 states have (on average 1.6382730455075847) internal successors, (1404), 887 states have internal predecessors, (1404), 204 states have call successors, (204), 47 states have call predecessors, (204), 48 states have return successors, (206), 188 states have call predecessors, (206), 199 states have call successors, (206) [2025-02-05 15:36:36,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1814 transitions. [2025-02-05 15:36:36,741 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1814 transitions. Word has length 90 [2025-02-05 15:36:36,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:36,741 INFO L471 AbstractCegarLoop]: Abstraction has 1110 states and 1814 transitions. [2025-02-05 15:36:36,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 6 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2025-02-05 15:36:36,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1814 transitions. [2025-02-05 15:36:36,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-05 15:36:36,745 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:36,745 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:36,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-05 15:36:36,746 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:36,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:36,746 INFO L85 PathProgramCache]: Analyzing trace with hash 13517225, now seen corresponding path program 1 times [2025-02-05 15:36:36,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:36,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275503283] [2025-02-05 15:36:36,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:36,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:36,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-05 15:36:36,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-05 15:36:36,769 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:36,769 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:36,978 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-05 15:36:36,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:36,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275503283] [2025-02-05 15:36:36,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275503283] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:36,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:36:36,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-05 15:36:36,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195374364] [2025-02-05 15:36:36,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:36,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-05 15:36:36,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:36,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-05 15:36:36,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-05 15:36:36,981 INFO L87 Difference]: Start difference. First operand 1110 states and 1814 transitions. Second operand has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2025-02-05 15:36:41,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:41,482 INFO L93 Difference]: Finished difference Result 4070 states and 6659 transitions. [2025-02-05 15:36:41,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-05 15:36:41,482 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 144 [2025-02-05 15:36:41,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:41,496 INFO L225 Difference]: With dead ends: 4070 [2025-02-05 15:36:41,496 INFO L226 Difference]: Without dead ends: 3005 [2025-02-05 15:36:41,500 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2025-02-05 15:36:41,501 INFO L435 NwaCegarLoop]: 745 mSDtfsCounter, 2364 mSDsluCounter, 3927 mSDsCounter, 0 mSdLazyCounter, 10980 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2445 SdHoareTripleChecker+Valid, 4672 SdHoareTripleChecker+Invalid, 11683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 10980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:41,501 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2445 Valid, 4672 Invalid, 11683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 10980 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2025-02-05 15:36:41,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3005 states. [2025-02-05 15:36:41,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3005 to 2911. [2025-02-05 15:36:41,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2911 states, 2170 states have (on average 1.6018433179723501) internal successors, (3476), 2246 states have internal predecessors, (3476), 610 states have call successors, (610), 113 states have call predecessors, (610), 130 states have return successors, (643), 584 states have call predecessors, (643), 605 states have call successors, (643) [2025-02-05 15:36:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2911 states to 2911 states and 4729 transitions. [2025-02-05 15:36:41,618 INFO L78 Accepts]: Start accepts. Automaton has 2911 states and 4729 transitions. Word has length 144 [2025-02-05 15:36:41,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:41,619 INFO L471 AbstractCegarLoop]: Abstraction has 2911 states and 4729 transitions. [2025-02-05 15:36:41,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 states have internal predecessors, (94), 5 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2025-02-05 15:36:41,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2911 states and 4729 transitions. [2025-02-05 15:36:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-02-05 15:36:41,622 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:41,622 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:41,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-05 15:36:41,623 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:41,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:41,624 INFO L85 PathProgramCache]: Analyzing trace with hash -244062197, now seen corresponding path program 1 times [2025-02-05 15:36:41,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:41,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273431612] [2025-02-05 15:36:41,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:41,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:41,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-02-05 15:36:41,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-02-05 15:36:41,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:41,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:41,756 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-05 15:36:41,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:41,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273431612] [2025-02-05 15:36:41,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273431612] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:36:41,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135567675] [2025-02-05 15:36:41,757 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:41,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:41,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:36:41,762 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) [2025-02-05 15:36:41,764 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 [2025-02-05 15:36:41,882 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-02-05 15:36:42,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-02-05 15:36:42,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:42,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:42,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 1748 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:36:42,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:36:42,248 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-05 15:36:42,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:36:42,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135567675] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:42,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:36:42,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-02-05 15:36:42,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480323708] [2025-02-05 15:36:42,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:42,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:36:42,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:42,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:36:42,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:36:42,252 INFO L87 Difference]: Start difference. First operand 2911 states and 4729 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:36:43,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:43,066 INFO L93 Difference]: Finished difference Result 5841 states and 9680 transitions. [2025-02-05 15:36:43,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:36:43,067 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 145 [2025-02-05 15:36:43,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:43,091 INFO L225 Difference]: With dead ends: 5841 [2025-02-05 15:36:43,091 INFO L226 Difference]: Without dead ends: 2975 [2025-02-05 15:36:43,111 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:36:43,111 INFO L435 NwaCegarLoop]: 895 mSDtfsCounter, 867 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 2281 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:43,111 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 2281 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 15:36:43,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2025-02-05 15:36:43,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 2975. [2025-02-05 15:36:43,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2226 states have (on average 1.6046720575022462) internal successors, (3572), 2302 states have internal predecessors, (3572), 610 states have call successors, (610), 121 states have call predecessors, (610), 138 states have return successors, (649), 584 states have call predecessors, (649), 605 states have call successors, (649) [2025-02-05 15:36:43,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 4831 transitions. [2025-02-05 15:36:43,238 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 4831 transitions. Word has length 145 [2025-02-05 15:36:43,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:43,240 INFO L471 AbstractCegarLoop]: Abstraction has 2975 states and 4831 transitions. [2025-02-05 15:36:43,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:36:43,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 4831 transitions. [2025-02-05 15:36:43,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-05 15:36:43,244 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:43,245 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:43,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 15:36:43,449 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,SelfDestructingSolverStorable16 [2025-02-05 15:36:43,450 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:43,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:43,450 INFO L85 PathProgramCache]: Analyzing trace with hash -835518913, now seen corresponding path program 1 times [2025-02-05 15:36:43,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:43,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333719618] [2025-02-05 15:36:43,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:43,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:43,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-05 15:36:43,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-05 15:36:43,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:43,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:43,599 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-05 15:36:43,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:43,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333719618] [2025-02-05 15:36:43,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333719618] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:36:43,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666858836] [2025-02-05 15:36:43,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:43,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:43,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:36:43,602 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) [2025-02-05 15:36:43,606 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 [2025-02-05 15:36:43,726 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-05 15:36:43,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-05 15:36:43,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:43,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:43,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 1750 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:36:43,884 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:36:44,027 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-05 15:36:44,030 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:36:44,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666858836] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:44,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:36:44,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-02-05 15:36:44,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206391902] [2025-02-05 15:36:44,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:44,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:36:44,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:44,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:36:44,031 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:36:44,031 INFO L87 Difference]: Start difference. First operand 2975 states and 4831 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:36:44,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:44,672 INFO L93 Difference]: Finished difference Result 5969 states and 9866 transitions. [2025-02-05 15:36:44,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:36:44,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2025-02-05 15:36:44,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:44,690 INFO L225 Difference]: With dead ends: 5969 [2025-02-05 15:36:44,690 INFO L226 Difference]: Without dead ends: 3039 [2025-02-05 15:36:44,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:36:44,704 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 858 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:44,705 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 2278 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 15:36:44,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3039 states. [2025-02-05 15:36:44,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3039 to 3039. [2025-02-05 15:36:44,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3039 states, 2282 states have (on average 1.607361963190184) internal successors, (3668), 2358 states have internal predecessors, (3668), 610 states have call successors, (610), 129 states have call predecessors, (610), 146 states have return successors, (655), 584 states have call predecessors, (655), 605 states have call successors, (655) [2025-02-05 15:36:44,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3039 states to 3039 states and 4933 transitions. [2025-02-05 15:36:44,816 INFO L78 Accepts]: Start accepts. Automaton has 3039 states and 4933 transitions. Word has length 147 [2025-02-05 15:36:44,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:44,817 INFO L471 AbstractCegarLoop]: Abstraction has 3039 states and 4933 transitions. [2025-02-05 15:36:44,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:36:44,817 INFO L276 IsEmpty]: Start isEmpty. Operand 3039 states and 4933 transitions. [2025-02-05 15:36:44,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-02-05 15:36:44,820 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:44,820 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-02-05 15:36:44,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-05 15:36:45,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-05 15:36:45,021 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:45,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:45,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1970940949, now seen corresponding path program 1 times [2025-02-05 15:36:45,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:45,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026227990] [2025-02-05 15:36:45,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:45,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:45,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-05 15:36:45,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-05 15:36:45,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:45,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:45,129 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-05 15:36:45,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:45,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026227990] [2025-02-05 15:36:45,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026227990] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:36:45,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973614373] [2025-02-05 15:36:45,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:45,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:45,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:36:45,131 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) [2025-02-05 15:36:45,133 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 [2025-02-05 15:36:45,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-05 15:36:45,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-05 15:36:45,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:45,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:45,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 1752 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:36:45,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:36:45,496 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-05 15:36:45,497 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:36:45,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973614373] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:45,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:36:45,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-02-05 15:36:45,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499002090] [2025-02-05 15:36:45,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:45,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:36:45,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:45,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:36:45,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:36:45,498 INFO L87 Difference]: Start difference. First operand 3039 states and 4933 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:36:46,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:46,040 INFO L93 Difference]: Finished difference Result 6097 states and 10052 transitions. [2025-02-05 15:36:46,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:36:46,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2025-02-05 15:36:46,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:46,064 INFO L225 Difference]: With dead ends: 6097 [2025-02-05 15:36:46,065 INFO L226 Difference]: Without dead ends: 3103 [2025-02-05 15:36:46,075 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:36:46,076 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 855 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:46,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 2275 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 15:36:46,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3103 states. [2025-02-05 15:36:46,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3103 to 3103. [2025-02-05 15:36:46,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3103 states, 2338 states have (on average 1.609923011120616) internal successors, (3764), 2414 states have internal predecessors, (3764), 610 states have call successors, (610), 137 states have call predecessors, (610), 154 states have return successors, (661), 584 states have call predecessors, (661), 605 states have call successors, (661) [2025-02-05 15:36:46,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3103 states to 3103 states and 5035 transitions. [2025-02-05 15:36:46,184 INFO L78 Accepts]: Start accepts. Automaton has 3103 states and 5035 transitions. Word has length 149 [2025-02-05 15:36:46,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:46,184 INFO L471 AbstractCegarLoop]: Abstraction has 3103 states and 5035 transitions. [2025-02-05 15:36:46,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:36:46,184 INFO L276 IsEmpty]: Start isEmpty. Operand 3103 states and 5035 transitions. [2025-02-05 15:36:46,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-02-05 15:36:46,188 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:46,188 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-02-05 15:36:46,196 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 [2025-02-05 15:36:46,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:46,389 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:46,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:46,390 INFO L85 PathProgramCache]: Analyzing trace with hash 794632377, now seen corresponding path program 1 times [2025-02-05 15:36:46,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:46,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188807764] [2025-02-05 15:36:46,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:46,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:46,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-02-05 15:36:46,426 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-02-05 15:36:46,426 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:46,426 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:46,510 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-05 15:36:46,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:46,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188807764] [2025-02-05 15:36:46,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188807764] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:36:46,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329587752] [2025-02-05 15:36:46,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:46,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:46,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:36:46,514 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) [2025-02-05 15:36:46,515 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 [2025-02-05 15:36:46,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-02-05 15:36:46,748 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-02-05 15:36:46,748 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:46,748 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:46,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 1754 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:36:46,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:36:46,855 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-05 15:36:46,855 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:36:46,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329587752] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:46,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:36:46,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-02-05 15:36:46,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048098742] [2025-02-05 15:36:46,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:46,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:36:46,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:46,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:36:46,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:36:46,859 INFO L87 Difference]: Start difference. First operand 3103 states and 5035 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:36:47,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:47,298 INFO L93 Difference]: Finished difference Result 6225 states and 10238 transitions. [2025-02-05 15:36:47,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:36:47,298 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2025-02-05 15:36:47,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:47,314 INFO L225 Difference]: With dead ends: 6225 [2025-02-05 15:36:47,315 INFO L226 Difference]: Without dead ends: 3167 [2025-02-05 15:36:47,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:36:47,325 INFO L435 NwaCegarLoop]: 886 mSDtfsCounter, 834 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 2272 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:47,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 2272 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 15:36:47,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2025-02-05 15:36:47,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 3167. [2025-02-05 15:36:47,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3167 states, 2394 states have (on average 1.6123642439431913) internal successors, (3860), 2470 states have internal predecessors, (3860), 610 states have call successors, (610), 145 states have call predecessors, (610), 162 states have return successors, (667), 584 states have call predecessors, (667), 605 states have call successors, (667) [2025-02-05 15:36:47,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3167 states to 3167 states and 5137 transitions. [2025-02-05 15:36:47,436 INFO L78 Accepts]: Start accepts. Automaton has 3167 states and 5137 transitions. Word has length 151 [2025-02-05 15:36:47,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:47,436 INFO L471 AbstractCegarLoop]: Abstraction has 3167 states and 5137 transitions. [2025-02-05 15:36:47,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:36:47,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3167 states and 5137 transitions. [2025-02-05 15:36:47,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-02-05 15:36:47,441 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:47,441 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:47,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-05 15:36:47,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:47,642 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:47,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:47,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1856743861, now seen corresponding path program 1 times [2025-02-05 15:36:47,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:47,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106903959] [2025-02-05 15:36:47,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:47,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:47,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-02-05 15:36:47,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-02-05 15:36:47,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:47,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:47,935 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-05 15:36:47,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:47,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106903959] [2025-02-05 15:36:47,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106903959] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:36:47,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461120482] [2025-02-05 15:36:47,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:47,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:47,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:36:47,938 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) [2025-02-05 15:36:47,939 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 [2025-02-05 15:36:48,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-02-05 15:36:48,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-02-05 15:36:48,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:48,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:48,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 1756 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-02-05 15:36:48,208 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:36:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-05 15:36:48,352 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:36:48,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461120482] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:48,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:36:48,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-02-05 15:36:48,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304625981] [2025-02-05 15:36:48,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:48,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:36:48,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:48,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:36:48,354 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-02-05 15:36:48,354 INFO L87 Difference]: Start difference. First operand 3167 states and 5137 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 5 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2025-02-05 15:36:50,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:50,498 INFO L93 Difference]: Finished difference Result 10350 states and 17028 transitions. [2025-02-05 15:36:50,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-05 15:36:50,499 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 5 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 153 [2025-02-05 15:36:50,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:50,535 INFO L225 Difference]: With dead ends: 10350 [2025-02-05 15:36:50,535 INFO L226 Difference]: Without dead ends: 7230 [2025-02-05 15:36:50,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2025-02-05 15:36:50,547 INFO L435 NwaCegarLoop]: 518 mSDtfsCounter, 2214 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 3639 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 2163 SdHoareTripleChecker+Invalid, 4156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 3639 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:50,547 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2304 Valid, 2163 Invalid, 4156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 3639 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-05 15:36:50,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7230 states. [2025-02-05 15:36:50,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7230 to 6768. [2025-02-05 15:36:50,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6768 states, 5107 states have (on average 1.6036812218523595) internal successors, (8190), 5280 states have internal predecessors, (8190), 1276 states have call successors, (1276), 301 states have call predecessors, (1276), 384 states have return successors, (1582), 1253 states have call predecessors, (1582), 1271 states have call successors, (1582) [2025-02-05 15:36:50,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6768 states to 6768 states and 11048 transitions. [2025-02-05 15:36:50,801 INFO L78 Accepts]: Start accepts. Automaton has 6768 states and 11048 transitions. Word has length 153 [2025-02-05 15:36:50,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:50,802 INFO L471 AbstractCegarLoop]: Abstraction has 6768 states and 11048 transitions. [2025-02-05 15:36:50,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 7 states have internal predecessors, (100), 5 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2025-02-05 15:36:50,802 INFO L276 IsEmpty]: Start isEmpty. Operand 6768 states and 11048 transitions. [2025-02-05 15:36:50,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-02-05 15:36:50,806 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:50,806 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:50,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-05 15:36:51,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:51,007 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:51,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:51,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1968585853, now seen corresponding path program 1 times [2025-02-05 15:36:51,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:51,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128102622] [2025-02-05 15:36:51,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:51,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:51,020 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 15:36:51,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 15:36:51,027 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:51,027 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:51,343 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-05 15:36:51,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:51,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128102622] [2025-02-05 15:36:51,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128102622] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:36:51,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625506482] [2025-02-05 15:36:51,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:51,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:51,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:36:51,345 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:36:51,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-05 15:36:51,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 15:36:51,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 15:36:51,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:51,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:51,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 15:36:51,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:36:51,606 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-02-05 15:36:51,606 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:36:51,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625506482] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:51,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:36:51,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2025-02-05 15:36:51,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422603337] [2025-02-05 15:36:51,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:51,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:36:51,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:51,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:36:51,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-02-05 15:36:51,607 INFO L87 Difference]: Start difference. First operand 6768 states and 11048 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:36:51,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:51,905 INFO L93 Difference]: Finished difference Result 16559 states and 27304 transitions. [2025-02-05 15:36:51,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:36:51,908 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2025-02-05 15:36:51,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:51,953 INFO L225 Difference]: With dead ends: 16559 [2025-02-05 15:36:51,953 INFO L226 Difference]: Without dead ends: 9839 [2025-02-05 15:36:51,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-02-05 15:36:51,971 INFO L435 NwaCegarLoop]: 1637 mSDtfsCounter, 854 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:51,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 2541 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:36:51,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9839 states. [2025-02-05 15:36:52,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9839 to 6756. [2025-02-05 15:36:52,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6756 states, 5101 states have (on average 1.6032150558713978) internal successors, (8178), 5268 states have internal predecessors, (8178), 1276 states have call successors, (1276), 301 states have call predecessors, (1276), 378 states have return successors, (1546), 1253 states have call predecessors, (1546), 1271 states have call successors, (1546) [2025-02-05 15:36:52,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6756 states to 6756 states and 11000 transitions. [2025-02-05 15:36:52,233 INFO L78 Accepts]: Start accepts. Automaton has 6756 states and 11000 transitions. Word has length 158 [2025-02-05 15:36:52,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:52,233 INFO L471 AbstractCegarLoop]: Abstraction has 6756 states and 11000 transitions. [2025-02-05 15:36:52,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:36:52,233 INFO L276 IsEmpty]: Start isEmpty. Operand 6756 states and 11000 transitions. [2025-02-05 15:36:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-02-05 15:36:52,237 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:52,237 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:52,245 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-05 15:36:52,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-02-05 15:36:52,438 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:52,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:52,438 INFO L85 PathProgramCache]: Analyzing trace with hash 625640964, now seen corresponding path program 1 times [2025-02-05 15:36:52,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:52,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383815979] [2025-02-05 15:36:52,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:52,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:52,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 15:36:52,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 15:36:52,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:52,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:52,806 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-05 15:36:52,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:52,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383815979] [2025-02-05 15:36:52,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383815979] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:36:52,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103777393] [2025-02-05 15:36:52,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:52,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:52,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:36:52,812 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:36:52,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-05 15:36:52,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 15:36:53,074 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 15:36:53,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:53,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:53,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-05 15:36:53,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:36:53,180 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-05 15:36:53,181 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:36:53,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103777393] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:53,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:36:53,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-02-05 15:36:53,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739255855] [2025-02-05 15:36:53,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:53,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:36:53,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:53,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:36:53,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:36:53,182 INFO L87 Difference]: Start difference. First operand 6756 states and 11000 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-02-05 15:36:55,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:55,099 INFO L93 Difference]: Finished difference Result 17989 states and 29778 transitions. [2025-02-05 15:36:55,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:36:55,099 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 158 [2025-02-05 15:36:55,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:55,159 INFO L225 Difference]: With dead ends: 17989 [2025-02-05 15:36:55,159 INFO L226 Difference]: Without dead ends: 11278 [2025-02-05 15:36:55,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:36:55,182 INFO L435 NwaCegarLoop]: 403 mSDtfsCounter, 2007 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 1395 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 1395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:55,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2091 Valid, 931 Invalid, 1829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 1395 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-05 15:36:55,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11278 states. [2025-02-05 15:36:55,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11278 to 10812. [2025-02-05 15:36:55,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10812 states, 8049 states have (on average 1.5932413964467635) internal successors, (12824), 8362 states have internal predecessors, (12824), 2157 states have call successors, (2157), 456 states have call predecessors, (2157), 605 states have return successors, (2797), 2157 states have call predecessors, (2797), 2152 states have call successors, (2797) [2025-02-05 15:36:55,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10812 states to 10812 states and 17778 transitions. [2025-02-05 15:36:55,674 INFO L78 Accepts]: Start accepts. Automaton has 10812 states and 17778 transitions. Word has length 158 [2025-02-05 15:36:55,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:55,675 INFO L471 AbstractCegarLoop]: Abstraction has 10812 states and 17778 transitions. [2025-02-05 15:36:55,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-02-05 15:36:55,675 INFO L276 IsEmpty]: Start isEmpty. Operand 10812 states and 17778 transitions. [2025-02-05 15:36:55,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-02-05 15:36:55,681 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:55,681 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:55,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-05 15:36:55,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:55,885 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:55,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:55,886 INFO L85 PathProgramCache]: Analyzing trace with hash -2080183373, now seen corresponding path program 1 times [2025-02-05 15:36:55,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:55,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223118880] [2025-02-05 15:36:55,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:55,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:55,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-05 15:36:55,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-05 15:36:55,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:55,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:56,109 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-05 15:36:56,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:36:56,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223118880] [2025-02-05 15:36:56,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223118880] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:36:56,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961450368] [2025-02-05 15:36:56,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:56,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:56,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:36:56,111 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:36:56,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-05 15:36:56,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-05 15:36:56,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-05 15:36:56,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:56,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:36:56,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-05 15:36:56,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:36:56,444 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-05 15:36:56,444 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:36:56,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961450368] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:36:56,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:36:56,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-02-05 15:36:56,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120461642] [2025-02-05 15:36:56,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:36:56,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:36:56,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:36:56,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:36:56,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:36:56,445 INFO L87 Difference]: Start difference. First operand 10812 states and 17778 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-02-05 15:36:58,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:36:58,494 INFO L93 Difference]: Finished difference Result 31476 states and 53343 transitions. [2025-02-05 15:36:58,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:36:58,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 159 [2025-02-05 15:36:58,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:36:58,615 INFO L225 Difference]: With dead ends: 31476 [2025-02-05 15:36:58,615 INFO L226 Difference]: Without dead ends: 20709 [2025-02-05 15:36:58,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:36:58,669 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 2010 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 899 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-05 15:36:58,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 899 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-05 15:36:58,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20709 states. [2025-02-05 15:36:59,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20709 to 19898. [2025-02-05 15:36:59,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19898 states, 14524 states have (on average 1.5827595703662902) internal successors, (22988), 15197 states have internal predecessors, (22988), 4276 states have call successors, (4276), 766 states have call predecessors, (4276), 1097 states have return successors, (6210), 4346 states have call predecessors, (6210), 4271 states have call successors, (6210) [2025-02-05 15:36:59,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19898 states to 19898 states and 33474 transitions. [2025-02-05 15:36:59,720 INFO L78 Accepts]: Start accepts. Automaton has 19898 states and 33474 transitions. Word has length 159 [2025-02-05 15:36:59,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:36:59,720 INFO L471 AbstractCegarLoop]: Abstraction has 19898 states and 33474 transitions. [2025-02-05 15:36:59,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-02-05 15:36:59,720 INFO L276 IsEmpty]: Start isEmpty. Operand 19898 states and 33474 transitions. [2025-02-05 15:36:59,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-02-05 15:36:59,726 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:36:59,727 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:36:59,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-05 15:36:59,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:36:59,929 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:36:59,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:36:59,929 INFO L85 PathProgramCache]: Analyzing trace with hash -61395682, now seen corresponding path program 1 times [2025-02-05 15:36:59,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:36:59,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229156592] [2025-02-05 15:36:59,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:36:59,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:36:59,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-05 15:36:59,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-05 15:36:59,953 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:36:59,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:37:00,146 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-05 15:37:00,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:37:00,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229156592] [2025-02-05 15:37:00,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229156592] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:37:00,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898128586] [2025-02-05 15:37:00,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:37:00,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:37:00,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:37:00,149 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:37:00,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-05 15:37:00,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-02-05 15:37:00,397 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-02-05 15:37:00,397 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:37:00,397 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:37:00,407 INFO L256 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-05 15:37:00,415 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:37:00,503 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-05 15:37:00,504 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:37:00,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898128586] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:37:00,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:37:00,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-02-05 15:37:00,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703526571] [2025-02-05 15:37:00,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:37:00,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:37:00,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:37:00,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:37:00,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:37:00,506 INFO L87 Difference]: Start difference. First operand 19898 states and 33474 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-02-05 15:37:03,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:37:03,630 INFO L93 Difference]: Finished difference Result 62072 states and 109826 transitions. [2025-02-05 15:37:03,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:37:03,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 160 [2025-02-05 15:37:03,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:37:03,928 INFO L225 Difference]: With dead ends: 62072 [2025-02-05 15:37:03,929 INFO L226 Difference]: Without dead ends: 42219 [2025-02-05 15:37:04,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:37:04,051 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 1997 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 442 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2079 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 442 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:37:04,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2079 Valid, 895 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [442 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-05 15:37:04,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42219 states. [2025-02-05 15:37:06,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42219 to 40683. [2025-02-05 15:37:06,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40683 states, 29021 states have (on average 1.5718272974742429) internal successors, (45616), 30592 states have internal predecessors, (45616), 9480 states have call successors, (9480), 1386 states have call predecessors, (9480), 2181 states have return successors, (15980), 9762 states have call predecessors, (15980), 9475 states have call successors, (15980) [2025-02-05 15:37:06,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40683 states to 40683 states and 71076 transitions. [2025-02-05 15:37:06,392 INFO L78 Accepts]: Start accepts. Automaton has 40683 states and 71076 transitions. Word has length 160 [2025-02-05 15:37:06,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:37:06,393 INFO L471 AbstractCegarLoop]: Abstraction has 40683 states and 71076 transitions. [2025-02-05 15:37:06,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-02-05 15:37:06,393 INFO L276 IsEmpty]: Start isEmpty. Operand 40683 states and 71076 transitions. [2025-02-05 15:37:06,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-02-05 15:37:06,399 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:37:06,399 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:37:06,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-05 15:37:06,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:37:06,603 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:37:06,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:37:06,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1903490483, now seen corresponding path program 1 times [2025-02-05 15:37:06,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:37:06,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655884599] [2025-02-05 15:37:06,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:37:06,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:37:06,617 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-05 15:37:06,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-05 15:37:06,625 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:37:06,625 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:37:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-05 15:37:07,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:37:07,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655884599] [2025-02-05 15:37:07,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655884599] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:37:07,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311459492] [2025-02-05 15:37:07,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:37:07,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:37:07,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:37:07,173 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:37:07,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-05 15:37:07,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-05 15:37:07,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-05 15:37:07,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:37:07,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:37:07,447 INFO L256 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-05 15:37:07,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:37:07,610 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-05 15:37:07,611 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:37:07,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311459492] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:37:07,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:37:07,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-02-05 15:37:07,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116344927] [2025-02-05 15:37:07,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:37:07,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:37:07,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:37:07,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:37:07,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:37:07,613 INFO L87 Difference]: Start difference. First operand 40683 states and 71076 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-02-05 15:37:13,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:37:13,875 INFO L93 Difference]: Finished difference Result 133003 states and 251887 transitions. [2025-02-05 15:37:13,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:37:13,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 161 [2025-02-05 15:37:13,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:37:14,587 INFO L225 Difference]: With dead ends: 133003 [2025-02-05 15:37:14,587 INFO L226 Difference]: Without dead ends: 92365 [2025-02-05 15:37:14,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:37:14,817 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 1984 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 445 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 445 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-02-05 15:37:14,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 891 Invalid, 1822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [445 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-02-05 15:37:14,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92365 states. [2025-02-05 15:37:20,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92365 to 89512. [2025-02-05 15:37:20,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89512 states, 62338 states have (on average 1.5604607141711315) internal successors, (97276), 66175 states have internal predecessors, (97276), 22552 states have call successors, (22552), 2626 states have call predecessors, (22552), 4621 states have return successors, (45422), 23474 states have call predecessors, (45422), 22547 states have call successors, (45422) [2025-02-05 15:37:21,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89512 states to 89512 states and 165250 transitions. [2025-02-05 15:37:21,704 INFO L78 Accepts]: Start accepts. Automaton has 89512 states and 165250 transitions. Word has length 161 [2025-02-05 15:37:21,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:37:21,705 INFO L471 AbstractCegarLoop]: Abstraction has 89512 states and 165250 transitions. [2025-02-05 15:37:21,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-02-05 15:37:21,705 INFO L276 IsEmpty]: Start isEmpty. Operand 89512 states and 165250 transitions. [2025-02-05 15:37:21,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-02-05 15:37:21,711 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:37:21,711 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:37:21,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-05 15:37:21,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-02-05 15:37:21,915 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:37:21,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:37:21,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1121109048, now seen corresponding path program 1 times [2025-02-05 15:37:21,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:37:21,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573685642] [2025-02-05 15:37:21,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:37:21,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:37:21,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-02-05 15:37:21,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-02-05 15:37:21,936 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:37:21,936 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:37:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-05 15:37:22,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:37:22,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573685642] [2025-02-05 15:37:22,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573685642] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:37:22,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988184490] [2025-02-05 15:37:22,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:37:22,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:37:22,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:37:22,127 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:37:22,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-05 15:37:22,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-02-05 15:37:22,376 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-02-05 15:37:22,376 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:37:22,376 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:37:22,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-02-05 15:37:22,386 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:37:22,474 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-02-05 15:37:22,475 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:37:22,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988184490] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:37:22,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:37:22,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-02-05 15:37:22,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749602123] [2025-02-05 15:37:22,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:37:22,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:37:22,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:37:22,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:37:22,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:37:22,476 INFO L87 Difference]: Start difference. First operand 89512 states and 165250 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (19), 4 states have call predecessors, (19), 3 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18)