./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 21dc9f7e2ddd4ffb05ac36477bf46e7266bc68ad137742c8de338dbab6571869 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 05:28:59,843 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 05:28:59,878 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 05:28:59,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 05:28:59,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 05:28:59,904 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 05:28:59,905 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 05:28:59,905 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 05:28:59,905 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 05:28:59,905 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 05:28:59,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 05:28:59,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 05:28:59,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 05:28:59,906 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 05:28:59,906 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 05:28:59,906 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 05:28:59,907 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 05:28:59,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:28:59,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 05:28:59,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 05:28:59,907 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 05:28:59,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 05:28:59,907 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 05:28:59,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 05:28:59,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 05:28:59,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 05:28:59,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 05:28:59,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 05:28:59,907 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/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 -> 21dc9f7e2ddd4ffb05ac36477bf46e7266bc68ad137742c8de338dbab6571869 [2025-03-08 05:29:00,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 05:29:00,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 05:29:00,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 05:29:00,152 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 05:29:00,152 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 05:29:00,153 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c [2025-03-08 05:29:01,323 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce1d32d7/6d91ae1c8d7a48b59546d8fee21753cd/FLAG07d124071 [2025-03-08 05:29:01,605 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 05:29:01,606 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c [2025-03-08 05:29:01,628 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce1d32d7/6d91ae1c8d7a48b59546d8fee21753cd/FLAG07d124071 [2025-03-08 05:29:01,640 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fce1d32d7/6d91ae1c8d7a48b59546d8fee21753cd [2025-03-08 05:29:01,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 05:29:01,645 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 05:29:01,646 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 05:29:01,646 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 05:29:01,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 05:29:01,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:29:01" (1/1) ... [2025-03-08 05:29:01,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ba6f69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:01, skipping insertion in model container [2025-03-08 05:29:01,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:29:01" (1/1) ... [2025-03-08 05:29:01,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 05:29:01,858 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c[5910,5923] [2025-03-08 05:29:02,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:29:02,059 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 05:29:02,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2025-03-08 05:29:02,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [169] [2025-03-08 05:29:02,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [183] [2025-03-08 05:29:02,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [284] [2025-03-08 05:29:02,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [293] [2025-03-08 05:29:02,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [960] [2025-03-08 05:29:02,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1122] [2025-03-08 05:29:02,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2737] [2025-03-08 05:29:02,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2775] [2025-03-08 05:29:02,069 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3141] [2025-03-08 05:29:02,080 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product31.cil.c[5910,5923] [2025-03-08 05:29:02,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:29:02,186 INFO L204 MainTranslator]: Completed translation [2025-03-08 05:29:02,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02 WrapperNode [2025-03-08 05:29:02,188 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 05:29:02,189 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 05:29:02,189 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 05:29:02,189 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 05:29:02,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (1/1) ... [2025-03-08 05:29:02,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (1/1) ... [2025-03-08 05:29:02,247 INFO L138 Inliner]: procedures = 97, calls = 346, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 921 [2025-03-08 05:29:02,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 05:29:02,248 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 05:29:02,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 05:29:02,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 05:29:02,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (1/1) ... [2025-03-08 05:29:02,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (1/1) ... [2025-03-08 05:29:02,259 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (1/1) ... [2025-03-08 05:29:02,294 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2025-03-08 05:29:02,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (1/1) ... [2025-03-08 05:29:02,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (1/1) ... [2025-03-08 05:29:02,316 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (1/1) ... [2025-03-08 05:29:02,323 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (1/1) ... [2025-03-08 05:29:02,331 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (1/1) ... [2025-03-08 05:29:02,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (1/1) ... [2025-03-08 05:29:02,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 05:29:02,349 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 05:29:02,349 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 05:29:02,349 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 05:29:02,350 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (1/1) ... [2025-03-08 05:29:02,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:29:02,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:02,381 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 05:29:02,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 05:29:02,403 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-03-08 05:29:02,404 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-03-08 05:29:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-03-08 05:29:02,404 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-03-08 05:29:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-03-08 05:29:02,404 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-03-08 05:29:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2025-03-08 05:29:02,404 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2025-03-08 05:29:02,404 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-03-08 05:29:02,405 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-03-08 05:29:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-03-08 05:29:02,405 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-03-08 05:29:02,405 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-03-08 05:29:02,405 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-03-08 05:29:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-03-08 05:29:02,406 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-03-08 05:29:02,406 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2025-03-08 05:29:02,406 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2025-03-08 05:29:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-03-08 05:29:02,407 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-03-08 05:29:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-03-08 05:29:02,407 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-03-08 05:29:02,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 05:29:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-03-08 05:29:02,408 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-03-08 05:29:02,408 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-03-08 05:29:02,408 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-03-08 05:29:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-03-08 05:29:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-03-08 05:29:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-03-08 05:29:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-03-08 05:29:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-03-08 05:29:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-03-08 05:29:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-03-08 05:29:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-03-08 05:29:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-03-08 05:29:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2025-03-08 05:29:02,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 05:29:02,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 05:29:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 05:29:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 05:29:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 05:29:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 05:29:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 05:29:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 05:29:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-08 05:29:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-08 05:29:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-08 05:29:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-03-08 05:29:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-03-08 05:29:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 05:29:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 05:29:02,410 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-03-08 05:29:02,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-03-08 05:29:02,553 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 05:29:02,555 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 05:29:02,608 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2069-1: stopRequestedAtCurrentFloor__wrappee__empty_#res#1 := stopRequestedAtCurrentFloor__wrappee__empty_~retValue_acc~18#1; [2025-03-08 05:29:02,608 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2097: #res#1 := ~retValue_acc~19#1; [2025-03-08 05:29:02,622 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L166: #res := ~retValue_acc~2; [2025-03-08 05:29:02,637 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L88: #res := ~retValue_acc~0; [2025-03-08 05:29:02,640 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1196: #res := ~retValue_acc~6; [2025-03-08 05:29:02,646 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1373: #res := ~retValue_acc~7; [2025-03-08 05:29:02,679 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2725: #res := ~retValue_acc~23; [2025-03-08 05:29:02,823 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2013-1: isAnyLiftButtonPressed_#res#1 := isAnyLiftButtonPressed_~retValue_acc~17#1; [2025-03-08 05:29:02,823 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1950-1: stopRequestedInDirection__wrappee__twothirdsfull_#res#1 := stopRequestedInDirection__wrappee__twothirdsfull_~retValue_acc~15#1; [2025-03-08 05:29:02,823 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1979: #res#1 := ~retValue_acc~16#1; [2025-03-08 05:29:02,882 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2142: #res := ~retValue_acc~21; [2025-03-08 05:29:02,894 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L127: #res := ~retValue_acc~1; [2025-03-08 05:29:02,915 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1465: #res := ~retValue_acc~11; [2025-03-08 05:29:03,039 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1910: #res := ~retValue_acc~14; [2025-03-08 05:29:03,048 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1416: #res := ~retValue_acc~9; [2025-03-08 05:29:03,182 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1382-1: areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~8#1; [2025-03-08 05:29:03,183 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2128-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~20#1; [2025-03-08 05:29:03,244 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1545-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~12#1; [2025-03-08 05:29:03,245 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1558-1: isIdle_#res#1 := isIdle_~retValue_acc~13#1; [2025-03-08 05:29:03,294 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L646: #res := ~retValue_acc~4; [2025-03-08 05:29:03,350 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3488-1: main_#res#1 := main_~retValue_acc~31#1; [2025-03-08 05:29:03,350 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2772-1: valid_product_#res#1 := valid_product_~retValue_acc~26#1; [2025-03-08 05:29:03,358 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L410: #res := ~retValue_acc~3; [2025-03-08 05:29:03,361 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L957: #res := ~retValue_acc~5; [2025-03-08 05:29:03,457 INFO L? ?]: Removed 477 outVars from TransFormulas that were not future-live. [2025-03-08 05:29:03,457 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 05:29:03,479 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 05:29:03,480 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 05:29:03,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:29:03 BoogieIcfgContainer [2025-03-08 05:29:03,484 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 05:29:03,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 05:29:03,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 05:29:03,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 05:29:03,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:29:01" (1/3) ... [2025-03-08 05:29:03,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fd0238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:29:03, skipping insertion in model container [2025-03-08 05:29:03,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:29:02" (2/3) ... [2025-03-08 05:29:03,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20fd0238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:29:03, skipping insertion in model container [2025-03-08 05:29:03,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:29:03" (3/3) ... [2025-03-08 05:29:03,491 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product31.cil.c [2025-03-08 05:29:03,500 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 05:29:03,503 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec9_product31.cil.c that has 27 procedures, 585 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 05:29:03,578 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 05:29:03,589 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;@25fdbb2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 05:29:03,589 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 05:29:03,595 INFO L276 IsEmpty]: Start isEmpty. Operand has 585 states, 458 states have (on average 1.6834061135371179) internal successors, (771), 479 states have internal predecessors, (771), 99 states have call successors, (99), 26 states have call predecessors, (99), 26 states have return successors, (99), 93 states have call predecessors, (99), 99 states have call successors, (99) [2025-03-08 05:29:03,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-03-08 05:29:03,618 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:03,619 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:03,619 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:03,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:03,623 INFO L85 PathProgramCache]: Analyzing trace with hash 870370104, now seen corresponding path program 1 times [2025-03-08 05:29:03,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:03,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93145378] [2025-03-08 05:29:03,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:03,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:03,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-08 05:29:03,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-08 05:29:03,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:03,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:04,111 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:04,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:04,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93145378] [2025-03-08 05:29:04,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93145378] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:04,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:04,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:29:04,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046625274] [2025-03-08 05:29:04,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:04,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:29:04,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:04,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:29:04,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:29:04,133 INFO L87 Difference]: Start difference. First operand has 585 states, 458 states have (on average 1.6834061135371179) internal successors, (771), 479 states have internal predecessors, (771), 99 states have call successors, (99), 26 states have call predecessors, (99), 26 states have return successors, (99), 93 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:04,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:04,266 INFO L93 Difference]: Finished difference Result 1150 states and 1913 transitions. [2025-03-08 05:29:04,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:29:04,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 106 [2025-03-08 05:29:04,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:04,279 INFO L225 Difference]: With dead ends: 1150 [2025-03-08 05:29:04,279 INFO L226 Difference]: Without dead ends: 577 [2025-03-08 05:29:04,285 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 [2025-03-08 05:29:04,287 INFO L435 NwaCegarLoop]: 949 mSDtfsCounter, 5 mSDsluCounter, 1894 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2843 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 [2025-03-08 05:29:04,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2843 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:04,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2025-03-08 05:29:04,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2025-03-08 05:29:04,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 452 states have (on average 1.6814159292035398) internal successors, (760), 471 states have internal predecessors, (760), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:04,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 953 transitions. [2025-03-08 05:29:04,373 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 953 transitions. Word has length 106 [2025-03-08 05:29:04,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:04,375 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 953 transitions. [2025-03-08 05:29:04,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:04,375 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 953 transitions. [2025-03-08 05:29:04,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-08 05:29:04,381 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:04,381 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:04,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 05:29:04,381 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:04,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:04,382 INFO L85 PathProgramCache]: Analyzing trace with hash -2071360268, now seen corresponding path program 1 times [2025-03-08 05:29:04,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:04,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47787565] [2025-03-08 05:29:04,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:04,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:04,404 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 05:29:04,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 05:29:04,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:04,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:04,550 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:04,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:04,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47787565] [2025-03-08 05:29:04,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47787565] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:04,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:04,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:29:04,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873149560] [2025-03-08 05:29:04,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:04,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:29:04,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:04,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:29:04,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:29:04,553 INFO L87 Difference]: Start difference. First operand 577 states and 953 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:04,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:04,632 INFO L93 Difference]: Finished difference Result 1136 states and 1883 transitions. [2025-03-08 05:29:04,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:29:04,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2025-03-08 05:29:04,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:04,639 INFO L225 Difference]: With dead ends: 1136 [2025-03-08 05:29:04,639 INFO L226 Difference]: Without dead ends: 577 [2025-03-08 05:29:04,641 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 [2025-03-08 05:29:04,642 INFO L435 NwaCegarLoop]: 942 mSDtfsCounter, 4 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2822 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 [2025-03-08 05:29:04,642 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2822 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:04,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2025-03-08 05:29:04,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2025-03-08 05:29:04,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 452 states have (on average 1.6792035398230087) internal successors, (759), 471 states have internal predecessors, (759), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:04,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 952 transitions. [2025-03-08 05:29:04,674 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 952 transitions. Word has length 108 [2025-03-08 05:29:04,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:04,674 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 952 transitions. [2025-03-08 05:29:04,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:04,674 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 952 transitions. [2025-03-08 05:29:04,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-08 05:29:04,680 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:04,680 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:04,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 05:29:04,681 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:04,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash 2131725536, now seen corresponding path program 1 times [2025-03-08 05:29:04,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:04,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062278894] [2025-03-08 05:29:04,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:04,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:04,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-08 05:29:04,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-08 05:29:04,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:04,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:04,834 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:04,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:04,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062278894] [2025-03-08 05:29:04,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062278894] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:04,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:04,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:29:04,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773241471] [2025-03-08 05:29:04,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:04,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:29:04,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:04,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:29:04,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:29:04,838 INFO L87 Difference]: Start difference. First operand 577 states and 952 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:04,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:04,899 INFO L93 Difference]: Finished difference Result 1136 states and 1882 transitions. [2025-03-08 05:29:04,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:29:04,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 109 [2025-03-08 05:29:04,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:04,905 INFO L225 Difference]: With dead ends: 1136 [2025-03-08 05:29:04,905 INFO L226 Difference]: Without dead ends: 577 [2025-03-08 05:29:04,907 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 [2025-03-08 05:29:04,909 INFO L435 NwaCegarLoop]: 942 mSDtfsCounter, 3 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2822 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 [2025-03-08 05:29:04,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2822 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:04,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2025-03-08 05:29:04,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2025-03-08 05:29:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 452 states have (on average 1.676991150442478) internal successors, (758), 471 states have internal predecessors, (758), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:04,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 951 transitions. [2025-03-08 05:29:04,934 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 951 transitions. Word has length 109 [2025-03-08 05:29:04,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:04,935 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 951 transitions. [2025-03-08 05:29:04,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:04,935 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 951 transitions. [2025-03-08 05:29:04,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-08 05:29:04,939 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:04,939 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:04,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 05:29:04,941 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:04,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:04,942 INFO L85 PathProgramCache]: Analyzing trace with hash 1015823095, now seen corresponding path program 1 times [2025-03-08 05:29:04,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:04,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369445015] [2025-03-08 05:29:04,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:04,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:04,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-08 05:29:04,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-08 05:29:04,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:04,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:05,108 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:05,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:05,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369445015] [2025-03-08 05:29:05,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369445015] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:05,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:05,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:29:05,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520533362] [2025-03-08 05:29:05,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:05,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:29:05,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:05,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:29:05,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:29:05,109 INFO L87 Difference]: Start difference. First operand 577 states and 951 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:05,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:05,153 INFO L93 Difference]: Finished difference Result 1136 states and 1881 transitions. [2025-03-08 05:29:05,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:29:05,154 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 110 [2025-03-08 05:29:05,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:05,157 INFO L225 Difference]: With dead ends: 1136 [2025-03-08 05:29:05,157 INFO L226 Difference]: Without dead ends: 577 [2025-03-08 05:29:05,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:29:05,160 INFO L435 NwaCegarLoop]: 942 mSDtfsCounter, 2 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2822 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 [2025-03-08 05:29:05,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2822 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:05,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2025-03-08 05:29:05,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2025-03-08 05:29:05,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 452 states have (on average 1.674778761061947) internal successors, (757), 471 states have internal predecessors, (757), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:05,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 950 transitions. [2025-03-08 05:29:05,176 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 950 transitions. Word has length 110 [2025-03-08 05:29:05,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:05,177 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 950 transitions. [2025-03-08 05:29:05,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:05,177 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 950 transitions. [2025-03-08 05:29:05,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-08 05:29:05,179 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:05,179 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:05,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 05:29:05,180 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:05,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:05,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1779957693, now seen corresponding path program 1 times [2025-03-08 05:29:05,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:05,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870779976] [2025-03-08 05:29:05,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:05,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:05,194 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-08 05:29:05,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-08 05:29:05,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:05,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:05,279 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:05,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:05,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870779976] [2025-03-08 05:29:05,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870779976] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:05,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:05,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:29:05,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908130786] [2025-03-08 05:29:05,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:05,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:29:05,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:05,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:29:05,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:29:05,281 INFO L87 Difference]: Start difference. First operand 577 states and 950 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:05,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:05,329 INFO L93 Difference]: Finished difference Result 1136 states and 1880 transitions. [2025-03-08 05:29:05,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:29:05,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2025-03-08 05:29:05,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:05,334 INFO L225 Difference]: With dead ends: 1136 [2025-03-08 05:29:05,335 INFO L226 Difference]: Without dead ends: 577 [2025-03-08 05:29:05,336 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 [2025-03-08 05:29:05,337 INFO L435 NwaCegarLoop]: 942 mSDtfsCounter, 1 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2822 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 [2025-03-08 05:29:05,338 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2822 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:05,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2025-03-08 05:29:05,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2025-03-08 05:29:05,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 452 states have (on average 1.6725663716814159) internal successors, (756), 471 states have internal predecessors, (756), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:05,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 949 transitions. [2025-03-08 05:29:05,364 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 949 transitions. Word has length 111 [2025-03-08 05:29:05,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:05,364 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 949 transitions. [2025-03-08 05:29:05,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 949 transitions. [2025-03-08 05:29:05,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-08 05:29:05,367 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:05,367 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:05,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 05:29:05,367 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:05,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:05,369 INFO L85 PathProgramCache]: Analyzing trace with hash -817392390, now seen corresponding path program 1 times [2025-03-08 05:29:05,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:05,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435066464] [2025-03-08 05:29:05,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:05,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:05,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-08 05:29:05,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-08 05:29:05,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:05,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:05,611 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:05,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:05,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435066464] [2025-03-08 05:29:05,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435066464] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:05,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:05,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 05:29:05,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778546912] [2025-03-08 05:29:05,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:05,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:29:05,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:05,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:29:05,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:29:05,614 INFO L87 Difference]: Start difference. First operand 577 states and 949 transitions. Second operand has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-03-08 05:29:05,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:05,710 INFO L93 Difference]: Finished difference Result 1102 states and 1812 transitions. [2025-03-08 05:29:05,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:29:05,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 112 [2025-03-08 05:29:05,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:05,717 INFO L225 Difference]: With dead ends: 1102 [2025-03-08 05:29:05,717 INFO L226 Difference]: Without dead ends: 592 [2025-03-08 05:29:05,720 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 [2025-03-08 05:29:05,722 INFO L435 NwaCegarLoop]: 939 mSDtfsCounter, 91 mSDsluCounter, 4614 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5553 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:05,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5553 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:05,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2025-03-08 05:29:05,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 590. [2025-03-08 05:29:05,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 462 states have (on average 1.6688311688311688) internal successors, (771), 483 states have internal predecessors, (771), 100 states have call successors, (100), 26 states have call predecessors, (100), 27 states have return successors, (97), 93 states have call predecessors, (97), 95 states have call successors, (97) [2025-03-08 05:29:05,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 968 transitions. [2025-03-08 05:29:05,750 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 968 transitions. Word has length 112 [2025-03-08 05:29:05,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:05,750 INFO L471 AbstractCegarLoop]: Abstraction has 590 states and 968 transitions. [2025-03-08 05:29:05,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-03-08 05:29:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 968 transitions. [2025-03-08 05:29:05,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-08 05:29:05,755 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:05,755 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:05,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 05:29:05,756 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:05,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:05,756 INFO L85 PathProgramCache]: Analyzing trace with hash -141699781, now seen corresponding path program 1 times [2025-03-08 05:29:05,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:05,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710785946] [2025-03-08 05:29:05,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:05,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:05,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-08 05:29:05,799 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-08 05:29:05,799 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:05,799 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:05,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:05,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710785946] [2025-03-08 05:29:05,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710785946] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:05,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:05,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:29:05,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828644286] [2025-03-08 05:29:05,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:05,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:29:05,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:05,878 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:29:05,878 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:29:05,879 INFO L87 Difference]: Start difference. First operand 590 states and 968 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:05,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:05,917 INFO L93 Difference]: Finished difference Result 1154 states and 1906 transitions. [2025-03-08 05:29:05,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:29:05,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 112 [2025-03-08 05:29:05,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:05,922 INFO L225 Difference]: With dead ends: 1154 [2025-03-08 05:29:05,922 INFO L226 Difference]: Without dead ends: 571 [2025-03-08 05:29:05,924 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 [2025-03-08 05:29:05,925 INFO L435 NwaCegarLoop]: 943 mSDtfsCounter, 0 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2824 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 [2025-03-08 05:29:05,926 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2824 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:05,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2025-03-08 05:29:05,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2025-03-08 05:29:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 446 states have (on average 1.663677130044843) internal successors, (742), 465 states have internal predecessors, (742), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:05,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 935 transitions. [2025-03-08 05:29:05,945 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 935 transitions. Word has length 112 [2025-03-08 05:29:05,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:05,945 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 935 transitions. [2025-03-08 05:29:05,946 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:05,946 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 935 transitions. [2025-03-08 05:29:05,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-08 05:29:05,948 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:05,948 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:05,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 05:29:05,949 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:05,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:05,949 INFO L85 PathProgramCache]: Analyzing trace with hash 81800203, now seen corresponding path program 1 times [2025-03-08 05:29:05,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:05,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749839550] [2025-03-08 05:29:05,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:05,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:05,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-08 05:29:05,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-08 05:29:05,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:05,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:06,090 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:06,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:06,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749839550] [2025-03-08 05:29:06,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749839550] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:06,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:06,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:29:06,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263377992] [2025-03-08 05:29:06,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:06,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:29:06,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:06,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:29:06,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:06,092 INFO L87 Difference]: Start difference. First operand 571 states and 935 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:06,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:06,278 INFO L93 Difference]: Finished difference Result 1099 states and 1804 transitions. [2025-03-08 05:29:06,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:29:06,279 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 113 [2025-03-08 05:29:06,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:06,282 INFO L225 Difference]: With dead ends: 1099 [2025-03-08 05:29:06,283 INFO L226 Difference]: Without dead ends: 580 [2025-03-08 05:29:06,285 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 [2025-03-08 05:29:06,285 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 55 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4431 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 [2025-03-08 05:29:06,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4431 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:29:06,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-03-08 05:29:06,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 571. [2025-03-08 05:29:06,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 446 states have (on average 1.654708520179372) internal successors, (738), 465 states have internal predecessors, (738), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:06,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 931 transitions. [2025-03-08 05:29:06,303 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 931 transitions. Word has length 113 [2025-03-08 05:29:06,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:06,303 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 931 transitions. [2025-03-08 05:29:06,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:06,303 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 931 transitions. [2025-03-08 05:29:06,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-03-08 05:29:06,306 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:06,306 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:06,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 05:29:06,306 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:06,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:06,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1676058717, now seen corresponding path program 1 times [2025-03-08 05:29:06,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:06,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488246153] [2025-03-08 05:29:06,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:06,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:06,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-03-08 05:29:06,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-03-08 05:29:06,329 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:06,329 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:06,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:06,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488246153] [2025-03-08 05:29:06,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488246153] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:06,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:06,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:29:06,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728326819] [2025-03-08 05:29:06,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:06,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:29:06,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:06,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:29:06,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:06,432 INFO L87 Difference]: Start difference. First operand 571 states and 931 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:06,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:06,572 INFO L93 Difference]: Finished difference Result 1099 states and 1800 transitions. [2025-03-08 05:29:06,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:29:06,573 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2025-03-08 05:29:06,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:06,577 INFO L225 Difference]: With dead ends: 1099 [2025-03-08 05:29:06,577 INFO L226 Difference]: Without dead ends: 580 [2025-03-08 05:29:06,579 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 [2025-03-08 05:29:06,582 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 54 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4431 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 [2025-03-08 05:29:06,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4431 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:29:06,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-03-08 05:29:06,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 571. [2025-03-08 05:29:06,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 446 states have (on average 1.6457399103139014) internal successors, (734), 465 states have internal predecessors, (734), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:06,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 927 transitions. [2025-03-08 05:29:06,605 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 927 transitions. Word has length 114 [2025-03-08 05:29:06,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:06,605 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 927 transitions. [2025-03-08 05:29:06,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:06,606 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 927 transitions. [2025-03-08 05:29:06,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-08 05:29:06,608 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:06,608 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:06,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 05:29:06,608 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:06,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:06,609 INFO L85 PathProgramCache]: Analyzing trace with hash 2085759976, now seen corresponding path program 1 times [2025-03-08 05:29:06,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:06,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986447491] [2025-03-08 05:29:06,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:06,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:06,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-08 05:29:06,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-08 05:29:06,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:06,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:06,734 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:06,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:06,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986447491] [2025-03-08 05:29:06,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986447491] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:06,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:06,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:29:06,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086011566] [2025-03-08 05:29:06,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:06,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:29:06,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:06,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:29:06,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:06,736 INFO L87 Difference]: Start difference. First operand 571 states and 927 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:06,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:06,860 INFO L93 Difference]: Finished difference Result 1099 states and 1796 transitions. [2025-03-08 05:29:06,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:29:06,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 115 [2025-03-08 05:29:06,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:06,864 INFO L225 Difference]: With dead ends: 1099 [2025-03-08 05:29:06,864 INFO L226 Difference]: Without dead ends: 580 [2025-03-08 05:29:06,866 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 [2025-03-08 05:29:06,866 INFO L435 NwaCegarLoop]: 891 mSDtfsCounter, 53 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4413 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 [2025-03-08 05:29:06,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4413 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:29:06,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-03-08 05:29:06,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 571. [2025-03-08 05:29:06,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 446 states have (on average 1.6367713004484306) internal successors, (730), 465 states have internal predecessors, (730), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:06,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 923 transitions. [2025-03-08 05:29:06,882 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 923 transitions. Word has length 115 [2025-03-08 05:29:06,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:06,882 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 923 transitions. [2025-03-08 05:29:06,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:06,883 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 923 transitions. [2025-03-08 05:29:06,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-08 05:29:06,885 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:06,885 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:06,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 05:29:06,885 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:06,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:06,886 INFO L85 PathProgramCache]: Analyzing trace with hash -789026855, now seen corresponding path program 1 times [2025-03-08 05:29:06,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:06,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400445477] [2025-03-08 05:29:06,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:06,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:06,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-08 05:29:06,904 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-08 05:29:06,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:06,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:07,018 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:07,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:07,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400445477] [2025-03-08 05:29:07,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400445477] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:07,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:07,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 05:29:07,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311327852] [2025-03-08 05:29:07,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:07,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:29:07,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:07,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:29:07,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:29:07,020 INFO L87 Difference]: Start difference. First operand 571 states and 923 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-03-08 05:29:07,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:07,105 INFO L93 Difference]: Finished difference Result 1090 states and 1778 transitions. [2025-03-08 05:29:07,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:29:07,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2025-03-08 05:29:07,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:07,110 INFO L225 Difference]: With dead ends: 1090 [2025-03-08 05:29:07,110 INFO L226 Difference]: Without dead ends: 550 [2025-03-08 05:29:07,113 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 [2025-03-08 05:29:07,113 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 84 mSDsluCounter, 4487 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5399 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 [2025-03-08 05:29:07,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5399 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2025-03-08 05:29:07,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2025-03-08 05:29:07,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 425 states have (on average 1.6376470588235295) internal successors, (696), 444 states have internal predecessors, (696), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:07,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 889 transitions. [2025-03-08 05:29:07,132 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 889 transitions. Word has length 115 [2025-03-08 05:29:07,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:07,132 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 889 transitions. [2025-03-08 05:29:07,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-03-08 05:29:07,132 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 889 transitions. [2025-03-08 05:29:07,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-08 05:29:07,135 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:07,135 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:07,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 05:29:07,135 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:07,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:07,136 INFO L85 PathProgramCache]: Analyzing trace with hash 863925536, now seen corresponding path program 1 times [2025-03-08 05:29:07,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:07,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108012430] [2025-03-08 05:29:07,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:07,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:07,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-08 05:29:07,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-08 05:29:07,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:07,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:07,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:07,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108012430] [2025-03-08 05:29:07,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108012430] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:07,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:07,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:29:07,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438300938] [2025-03-08 05:29:07,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:07,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:29:07,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:07,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:29:07,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:07,245 INFO L87 Difference]: Start difference. First operand 550 states and 889 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:07,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:07,305 INFO L93 Difference]: Finished difference Result 1069 states and 1744 transitions. [2025-03-08 05:29:07,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:29:07,306 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2025-03-08 05:29:07,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:07,310 INFO L225 Difference]: With dead ends: 1069 [2025-03-08 05:29:07,310 INFO L226 Difference]: Without dead ends: 550 [2025-03-08 05:29:07,312 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 [2025-03-08 05:29:07,312 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 17 mSDsluCounter, 3479 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4351 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 [2025-03-08 05:29:07,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4351 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:07,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2025-03-08 05:29:07,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2025-03-08 05:29:07,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 425 states have (on average 1.6352941176470588) internal successors, (695), 444 states have internal predecessors, (695), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 888 transitions. [2025-03-08 05:29:07,327 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 888 transitions. Word has length 116 [2025-03-08 05:29:07,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:07,328 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 888 transitions. [2025-03-08 05:29:07,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 888 transitions. [2025-03-08 05:29:07,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-03-08 05:29:07,330 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:07,330 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:07,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 05:29:07,331 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:07,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:07,331 INFO L85 PathProgramCache]: Analyzing trace with hash -232333371, now seen corresponding path program 1 times [2025-03-08 05:29:07,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:07,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656609278] [2025-03-08 05:29:07,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:07,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:07,346 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-03-08 05:29:07,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-03-08 05:29:07,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:07,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:07,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:07,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656609278] [2025-03-08 05:29:07,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656609278] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:07,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:07,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:29:07,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976397587] [2025-03-08 05:29:07,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:07,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:29:07,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:07,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:29:07,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:07,449 INFO L87 Difference]: Start difference. First operand 550 states and 888 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:07,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:07,510 INFO L93 Difference]: Finished difference Result 1069 states and 1743 transitions. [2025-03-08 05:29:07,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:29:07,510 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2025-03-08 05:29:07,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:07,516 INFO L225 Difference]: With dead ends: 1069 [2025-03-08 05:29:07,516 INFO L226 Difference]: Without dead ends: 550 [2025-03-08 05:29:07,518 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 [2025-03-08 05:29:07,519 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 16 mSDsluCounter, 3479 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4351 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 [2025-03-08 05:29:07,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4351 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:07,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2025-03-08 05:29:07,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2025-03-08 05:29:07,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 425 states have (on average 1.6329411764705883) internal successors, (694), 444 states have internal predecessors, (694), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:07,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 887 transitions. [2025-03-08 05:29:07,535 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 887 transitions. Word has length 117 [2025-03-08 05:29:07,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:07,535 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 887 transitions. [2025-03-08 05:29:07,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (15), 2 states have call predecessors, (15), 4 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:07,535 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 887 transitions. [2025-03-08 05:29:07,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-08 05:29:07,538 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:07,538 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:07,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 05:29:07,538 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:07,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:07,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1730718051, now seen corresponding path program 1 times [2025-03-08 05:29:07,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:07,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549251727] [2025-03-08 05:29:07,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:07,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:07,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-08 05:29:07,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-08 05:29:07,561 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:07,561 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:07,624 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:07,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:07,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549251727] [2025-03-08 05:29:07,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549251727] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:07,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:07,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:29:07,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621178873] [2025-03-08 05:29:07,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:07,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:29:07,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:07,625 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:29:07,625 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:29:07,626 INFO L87 Difference]: Start difference. First operand 550 states and 887 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:07,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:07,658 INFO L93 Difference]: Finished difference Result 1063 states and 1731 transitions. [2025-03-08 05:29:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:29:07,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2025-03-08 05:29:07,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:07,663 INFO L225 Difference]: With dead ends: 1063 [2025-03-08 05:29:07,663 INFO L226 Difference]: Without dead ends: 550 [2025-03-08 05:29:07,665 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 [2025-03-08 05:29:07,665 INFO L435 NwaCegarLoop]: 875 mSDtfsCounter, 5 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2615 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:07,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2615 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:07,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2025-03-08 05:29:07,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2025-03-08 05:29:07,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 425 states have (on average 1.6305882352941177) internal successors, (693), 444 states have internal predecessors, (693), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (94), 92 states have call predecessors, (94), 94 states have call successors, (94) [2025-03-08 05:29:07,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 886 transitions. [2025-03-08 05:29:07,682 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 886 transitions. Word has length 118 [2025-03-08 05:29:07,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:07,682 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 886 transitions. [2025-03-08 05:29:07,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:29:07,683 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 886 transitions. [2025-03-08 05:29:07,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-03-08 05:29:07,685 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:07,685 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:07,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 05:29:07,685 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:07,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:07,686 INFO L85 PathProgramCache]: Analyzing trace with hash -103743118, now seen corresponding path program 1 times [2025-03-08 05:29:07,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:07,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973892486] [2025-03-08 05:29:07,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:07,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:07,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-03-08 05:29:07,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-03-08 05:29:07,708 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:07,708 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:07,808 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-08 05:29:07,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:07,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973892486] [2025-03-08 05:29:07,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973892486] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:29:07,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066564680] [2025-03-08 05:29:07,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:07,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:07,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:07,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:29:07,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 05:29:07,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-03-08 05:29:08,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-03-08 05:29:08,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:08,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:08,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:29:08,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:29:08,111 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:08,111 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:29:08,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066564680] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:08,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:29:08,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-03-08 05:29:08,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055595960] [2025-03-08 05:29:08,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:08,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:29:08,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:08,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:29:08,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:29:08,113 INFO L87 Difference]: Start difference. First operand 550 states and 886 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-08 05:29:08,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:08,153 INFO L93 Difference]: Finished difference Result 1551 states and 2555 transitions. [2025-03-08 05:29:08,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:29:08,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 119 [2025-03-08 05:29:08,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:08,160 INFO L225 Difference]: With dead ends: 1551 [2025-03-08 05:29:08,160 INFO L226 Difference]: Without dead ends: 1046 [2025-03-08 05:29:08,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:29:08,162 INFO L435 NwaCegarLoop]: 1005 mSDtfsCounter, 871 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 1830 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:08,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 1830 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:08,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2025-03-08 05:29:08,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 1044. [2025-03-08 05:29:08,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 808 states have (on average 1.650990099009901) internal successors, (1334), 841 states have internal predecessors, (1334), 188 states have call successors, (188), 47 states have call predecessors, (188), 47 states have return successors, (193), 181 states have call predecessors, (193), 183 states have call successors, (193) [2025-03-08 05:29:08,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 1715 transitions. [2025-03-08 05:29:08,203 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 1715 transitions. Word has length 119 [2025-03-08 05:29:08,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:08,203 INFO L471 AbstractCegarLoop]: Abstraction has 1044 states and 1715 transitions. [2025-03-08 05:29:08,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-08 05:29:08,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 1715 transitions. [2025-03-08 05:29:08,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-03-08 05:29:08,206 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:08,206 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:08,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 05:29:08,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-08 05:29:08,407 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:08,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:08,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1078746313, now seen corresponding path program 1 times [2025-03-08 05:29:08,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:08,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541845511] [2025-03-08 05:29:08,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:08,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:08,425 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-03-08 05:29:08,433 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-03-08 05:29:08,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:08,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-08 05:29:08,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:08,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541845511] [2025-03-08 05:29:08,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541845511] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:29:08,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105936680] [2025-03-08 05:29:08,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:08,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:08,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:08,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:29:08,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 05:29:08,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-03-08 05:29:08,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-03-08 05:29:08,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:08,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:08,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 1464 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:29:08,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:29:08,840 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:08,841 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:29:08,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105936680] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:08,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:29:08,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-03-08 05:29:08,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920891663] [2025-03-08 05:29:08,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:08,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:29:08,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:08,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:29:08,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:29:08,842 INFO L87 Difference]: Start difference. First operand 1044 states and 1715 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-08 05:29:08,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:08,911 INFO L93 Difference]: Finished difference Result 3035 states and 5060 transitions. [2025-03-08 05:29:08,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:29:08,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 120 [2025-03-08 05:29:08,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:08,925 INFO L225 Difference]: With dead ends: 3035 [2025-03-08 05:29:08,925 INFO L226 Difference]: Without dead ends: 2036 [2025-03-08 05:29:08,930 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:29:08,930 INFO L435 NwaCegarLoop]: 959 mSDtfsCounter, 870 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:08,931 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 1786 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:08,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2025-03-08 05:29:08,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 2033. [2025-03-08 05:29:08,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2033 states, 1575 states have (on average 1.6615873015873015) internal successors, (2617), 1636 states have internal predecessors, (2617), 366 states have call successors, (366), 89 states have call predecessors, (366), 91 states have return successors, (403), 359 states have call predecessors, (403), 361 states have call successors, (403) [2025-03-08 05:29:09,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2033 states to 2033 states and 3386 transitions. [2025-03-08 05:29:09,007 INFO L78 Accepts]: Start accepts. Automaton has 2033 states and 3386 transitions. Word has length 120 [2025-03-08 05:29:09,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:09,008 INFO L471 AbstractCegarLoop]: Abstraction has 2033 states and 3386 transitions. [2025-03-08 05:29:09,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-08 05:29:09,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2033 states and 3386 transitions. [2025-03-08 05:29:09,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-03-08 05:29:09,011 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:09,011 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:09,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 05:29:09,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-08 05:29:09,215 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:09,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:09,216 INFO L85 PathProgramCache]: Analyzing trace with hash -918790772, now seen corresponding path program 1 times [2025-03-08 05:29:09,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:09,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446804684] [2025-03-08 05:29:09,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:09,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:09,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-08 05:29:09,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-08 05:29:09,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:09,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:09,355 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-08 05:29:09,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:09,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446804684] [2025-03-08 05:29:09,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446804684] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:29:09,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502714384] [2025-03-08 05:29:09,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:09,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:09,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:09,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:29:09,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 05:29:09,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-08 05:29:09,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-08 05:29:09,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:09,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:09,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:29:09,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:29:09,678 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:09,679 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:29:09,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502714384] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:09,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:29:09,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-03-08 05:29:09,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721496590] [2025-03-08 05:29:09,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:09,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:29:09,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:09,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:29:09,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:29:09,681 INFO L87 Difference]: Start difference. First operand 2033 states and 3386 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-08 05:29:09,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:09,798 INFO L93 Difference]: Finished difference Result 6004 states and 10124 transitions. [2025-03-08 05:29:09,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:29:09,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 121 [2025-03-08 05:29:09,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:09,826 INFO L225 Difference]: With dead ends: 6004 [2025-03-08 05:29:09,826 INFO L226 Difference]: Without dead ends: 4016 [2025-03-08 05:29:09,836 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:29:09,836 INFO L435 NwaCegarLoop]: 948 mSDtfsCounter, 869 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1777 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:09,837 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1777 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:09,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4016 states. [2025-03-08 05:29:09,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4016 to 4012. [2025-03-08 05:29:10,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4012 states, 3110 states have (on average 1.6665594855305466) internal successors, (5183), 3227 states have internal predecessors, (5183), 722 states have call successors, (722), 173 states have call predecessors, (722), 179 states have return successors, (859), 715 states have call predecessors, (859), 717 states have call successors, (859) [2025-03-08 05:29:10,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4012 states to 4012 states and 6764 transitions. [2025-03-08 05:29:10,034 INFO L78 Accepts]: Start accepts. Automaton has 4012 states and 6764 transitions. Word has length 121 [2025-03-08 05:29:10,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:10,035 INFO L471 AbstractCegarLoop]: Abstraction has 4012 states and 6764 transitions. [2025-03-08 05:29:10,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-08 05:29:10,035 INFO L276 IsEmpty]: Start isEmpty. Operand 4012 states and 6764 transitions. [2025-03-08 05:29:10,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-08 05:29:10,038 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:10,038 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:10,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 05:29:10,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:10,239 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:10,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:10,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1582065251, now seen corresponding path program 1 times [2025-03-08 05:29:10,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:10,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737705842] [2025-03-08 05:29:10,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:10,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:10,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-08 05:29:10,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-08 05:29:10,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:10,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:10,339 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-08 05:29:10,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:10,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737705842] [2025-03-08 05:29:10,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737705842] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:29:10,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877072093] [2025-03-08 05:29:10,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:10,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:10,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:10,341 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:29:10,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 05:29:10,454 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-08 05:29:10,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-08 05:29:10,573 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:10,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:10,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 1468 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:29:10,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:29:10,612 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:10,613 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:29:10,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877072093] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:10,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:29:10,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-03-08 05:29:10,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959422338] [2025-03-08 05:29:10,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:10,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:29:10,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:10,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:29:10,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:29:10,616 INFO L87 Difference]: Start difference. First operand 4012 states and 6764 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-08 05:29:10,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:10,864 INFO L93 Difference]: Finished difference Result 11943 states and 20429 transitions. [2025-03-08 05:29:10,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:29:10,865 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 122 [2025-03-08 05:29:10,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:10,918 INFO L225 Difference]: With dead ends: 11943 [2025-03-08 05:29:10,919 INFO L226 Difference]: Without dead ends: 7976 [2025-03-08 05:29:10,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:29:10,943 INFO L435 NwaCegarLoop]: 978 mSDtfsCounter, 867 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1812 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:10,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1812 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:10,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2025-03-08 05:29:11,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 7971. [2025-03-08 05:29:11,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7971 states, 6181 states have (on average 1.6685002426791782) internal successors, (10313), 6410 states have internal predecessors, (10313), 1434 states have call successors, (1434), 341 states have call predecessors, (1434), 355 states have return successors, (1891), 1427 states have call predecessors, (1891), 1429 states have call successors, (1891) [2025-03-08 05:29:11,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7971 states to 7971 states and 13638 transitions. [2025-03-08 05:29:11,279 INFO L78 Accepts]: Start accepts. Automaton has 7971 states and 13638 transitions. Word has length 122 [2025-03-08 05:29:11,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:11,280 INFO L471 AbstractCegarLoop]: Abstraction has 7971 states and 13638 transitions. [2025-03-08 05:29:11,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-08 05:29:11,280 INFO L276 IsEmpty]: Start isEmpty. Operand 7971 states and 13638 transitions. [2025-03-08 05:29:11,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-03-08 05:29:11,283 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:11,283 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-03-08 05:29:11,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 05:29:11,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-08 05:29:11,487 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:11,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:11,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1799186854, now seen corresponding path program 1 times [2025-03-08 05:29:11,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:11,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066968433] [2025-03-08 05:29:11,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:11,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:11,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-08 05:29:11,506 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-08 05:29:11,507 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:11,507 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:11,574 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-03-08 05:29:11,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:11,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066968433] [2025-03-08 05:29:11,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066968433] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:29:11,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2044165369] [2025-03-08 05:29:11,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:11,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:11,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:11,577 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:29:11,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 05:29:11,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-08 05:29:11,800 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-08 05:29:11,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:11,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:11,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:29:11,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:29:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:29:11,867 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:29:11,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2044165369] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:11,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:29:11,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-03-08 05:29:11,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403903727] [2025-03-08 05:29:11,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:11,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:29:11,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:11,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:29:11,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:29:11,869 INFO L87 Difference]: Start difference. First operand 7971 states and 13638 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-08 05:29:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:12,336 INFO L93 Difference]: Finished difference Result 23822 states and 41677 transitions. [2025-03-08 05:29:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:29:12,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 123 [2025-03-08 05:29:12,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:12,466 INFO L225 Difference]: With dead ends: 23822 [2025-03-08 05:29:12,467 INFO L226 Difference]: Without dead ends: 15888 [2025-03-08 05:29:12,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:29:12,551 INFO L435 NwaCegarLoop]: 995 mSDtfsCounter, 866 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:12,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1829 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:12,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15888 states. [2025-03-08 05:29:13,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15888 to 15882. [2025-03-08 05:29:13,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15882 states, 12317 states have (on average 1.6686693188276367) internal successors, (20553), 12770 states have internal predecessors, (20553), 2858 states have call successors, (2858), 677 states have call predecessors, (2858), 706 states have return successors, (4386), 2850 states have call predecessors, (4386), 2853 states have call successors, (4386) [2025-03-08 05:29:13,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15882 states to 15882 states and 27797 transitions. [2025-03-08 05:29:13,230 INFO L78 Accepts]: Start accepts. Automaton has 15882 states and 27797 transitions. Word has length 123 [2025-03-08 05:29:13,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:13,231 INFO L471 AbstractCegarLoop]: Abstraction has 15882 states and 27797 transitions. [2025-03-08 05:29:13,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2025-03-08 05:29:13,231 INFO L276 IsEmpty]: Start isEmpty. Operand 15882 states and 27797 transitions. [2025-03-08 05:29:13,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2025-03-08 05:29:13,253 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:13,253 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:13,266 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-08 05:29:13,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:13,454 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:13,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:13,455 INFO L85 PathProgramCache]: Analyzing trace with hash 530140989, now seen corresponding path program 1 times [2025-03-08 05:29:13,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:13,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959154845] [2025-03-08 05:29:13,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:13,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:13,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 189 statements into 1 equivalence classes. [2025-03-08 05:29:13,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 189 of 189 statements. [2025-03-08 05:29:13,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:13,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:13,569 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-03-08 05:29:13,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:13,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959154845] [2025-03-08 05:29:13,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959154845] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:13,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:13,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:29:13,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179685437] [2025-03-08 05:29:13,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:13,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:29:13,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:13,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:29:13,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:13,571 INFO L87 Difference]: Start difference. First operand 15882 states and 27797 transitions. Second operand has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-08 05:29:14,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:14,440 INFO L93 Difference]: Finished difference Result 31847 states and 57464 transitions. [2025-03-08 05:29:14,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:29:14,441 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 189 [2025-03-08 05:29:14,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:14,546 INFO L225 Difference]: With dead ends: 31847 [2025-03-08 05:29:14,546 INFO L226 Difference]: Without dead ends: 16010 [2025-03-08 05:29:14,621 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:29:14,622 INFO L435 NwaCegarLoop]: 868 mSDtfsCounter, 880 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 3247 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:14,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 3247 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 05:29:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16010 states. [2025-03-08 05:29:15,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16010 to 16010. [2025-03-08 05:29:15,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16010 states, 12413 states have (on average 1.6634979457020864) internal successors, (20649), 12866 states have internal predecessors, (20649), 2858 states have call successors, (2858), 709 states have call predecessors, (2858), 738 states have return successors, (4418), 2850 states have call predecessors, (4418), 2853 states have call successors, (4418) [2025-03-08 05:29:15,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16010 states to 16010 states and 27925 transitions. [2025-03-08 05:29:15,325 INFO L78 Accepts]: Start accepts. Automaton has 16010 states and 27925 transitions. Word has length 189 [2025-03-08 05:29:15,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:15,325 INFO L471 AbstractCegarLoop]: Abstraction has 16010 states and 27925 transitions. [2025-03-08 05:29:15,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-08 05:29:15,325 INFO L276 IsEmpty]: Start isEmpty. Operand 16010 states and 27925 transitions. [2025-03-08 05:29:15,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2025-03-08 05:29:15,447 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:15,447 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:15,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-03-08 05:29:15,447 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:15,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:15,448 INFO L85 PathProgramCache]: Analyzing trace with hash -271445726, now seen corresponding path program 1 times [2025-03-08 05:29:15,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:15,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75483178] [2025-03-08 05:29:15,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:15,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:15,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 190 statements into 1 equivalence classes. [2025-03-08 05:29:15,468 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 190 of 190 statements. [2025-03-08 05:29:15,468 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:15,468 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:15,552 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-03-08 05:29:15,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:15,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75483178] [2025-03-08 05:29:15,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75483178] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:15,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:15,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:29:15,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209522158] [2025-03-08 05:29:15,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:15,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:29:15,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:15,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:29:15,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:15,555 INFO L87 Difference]: Start difference. First operand 16010 states and 27925 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-08 05:29:16,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:16,260 INFO L93 Difference]: Finished difference Result 32135 states and 57688 transitions. [2025-03-08 05:29:16,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:29:16,260 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 190 [2025-03-08 05:29:16,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:16,474 INFO L225 Difference]: With dead ends: 32135 [2025-03-08 05:29:16,474 INFO L226 Difference]: Without dead ends: 16170 [2025-03-08 05:29:16,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:29:16,525 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 879 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:16,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 3253 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 05:29:16,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16170 states. [2025-03-08 05:29:16,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16170 to 16170. [2025-03-08 05:29:16,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16170 states, 12541 states have (on average 1.6567259389203413) internal successors, (20777), 12994 states have internal predecessors, (20777), 2858 states have call successors, (2858), 741 states have call predecessors, (2858), 770 states have return successors, (4450), 2850 states have call predecessors, (4450), 2853 states have call successors, (4450) [2025-03-08 05:29:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16170 states to 16170 states and 28085 transitions. [2025-03-08 05:29:16,972 INFO L78 Accepts]: Start accepts. Automaton has 16170 states and 28085 transitions. Word has length 190 [2025-03-08 05:29:16,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:16,973 INFO L471 AbstractCegarLoop]: Abstraction has 16170 states and 28085 transitions. [2025-03-08 05:29:16,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-08 05:29:16,973 INFO L276 IsEmpty]: Start isEmpty. Operand 16170 states and 28085 transitions. [2025-03-08 05:29:16,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2025-03-08 05:29:16,989 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:16,989 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:16,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-03-08 05:29:16,990 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:16,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:16,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2099884282, now seen corresponding path program 1 times [2025-03-08 05:29:16,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:16,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936174742] [2025-03-08 05:29:16,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:16,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:17,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 191 statements into 1 equivalence classes. [2025-03-08 05:29:17,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 191 of 191 statements. [2025-03-08 05:29:17,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:17,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:17,167 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-03-08 05:29:17,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:17,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936174742] [2025-03-08 05:29:17,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936174742] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:17,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:17,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:29:17,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958050097] [2025-03-08 05:29:17,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:17,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:29:17,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:17,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:29:17,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:17,169 INFO L87 Difference]: Start difference. First operand 16170 states and 28085 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-08 05:29:17,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:17,829 INFO L93 Difference]: Finished difference Result 32487 states and 57976 transitions. [2025-03-08 05:29:17,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:29:17,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 191 [2025-03-08 05:29:17,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:18,079 INFO L225 Difference]: With dead ends: 32487 [2025-03-08 05:29:18,079 INFO L226 Difference]: Without dead ends: 16362 [2025-03-08 05:29:18,145 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:29:18,147 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 879 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:18,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 3253 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 05:29:18,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16362 states. [2025-03-08 05:29:18,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16362 to 16362. [2025-03-08 05:29:18,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16362 states, 12701 states have (on average 1.6484528777261633) internal successors, (20937), 13154 states have internal predecessors, (20937), 2858 states have call successors, (2858), 773 states have call predecessors, (2858), 802 states have return successors, (4482), 2850 states have call predecessors, (4482), 2853 states have call successors, (4482) [2025-03-08 05:29:18,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16362 states to 16362 states and 28277 transitions. [2025-03-08 05:29:18,836 INFO L78 Accepts]: Start accepts. Automaton has 16362 states and 28277 transitions. Word has length 191 [2025-03-08 05:29:18,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:18,837 INFO L471 AbstractCegarLoop]: Abstraction has 16362 states and 28277 transitions. [2025-03-08 05:29:18,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-08 05:29:18,837 INFO L276 IsEmpty]: Start isEmpty. Operand 16362 states and 28277 transitions. [2025-03-08 05:29:18,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2025-03-08 05:29:18,852 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:18,852 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:18,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-03-08 05:29:18,852 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:18,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:18,853 INFO L85 PathProgramCache]: Analyzing trace with hash -247582401, now seen corresponding path program 1 times [2025-03-08 05:29:18,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:18,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180065009] [2025-03-08 05:29:18,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:18,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:18,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 192 statements into 1 equivalence classes. [2025-03-08 05:29:18,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 192 of 192 statements. [2025-03-08 05:29:18,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:18,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:19,009 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-03-08 05:29:19,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:19,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180065009] [2025-03-08 05:29:19,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180065009] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:19,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:19,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:29:19,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242175236] [2025-03-08 05:29:19,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:19,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:29:19,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:19,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:29:19,011 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:19,011 INFO L87 Difference]: Start difference. First operand 16362 states and 28277 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-08 05:29:19,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:19,897 INFO L93 Difference]: Finished difference Result 32903 states and 58328 transitions. [2025-03-08 05:29:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:29:19,898 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) Word has length 192 [2025-03-08 05:29:19,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:20,034 INFO L225 Difference]: With dead ends: 32903 [2025-03-08 05:29:20,035 INFO L226 Difference]: Without dead ends: 16586 [2025-03-08 05:29:20,107 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:29:20,108 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 879 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 3253 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:20,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 3253 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 05:29:20,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16586 states. [2025-03-08 05:29:20,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16586 to 16586. [2025-03-08 05:29:20,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16586 states, 12893 states have (on average 1.6387962460249748) internal successors, (21129), 13346 states have internal predecessors, (21129), 2858 states have call successors, (2858), 805 states have call predecessors, (2858), 834 states have return successors, (4514), 2850 states have call predecessors, (4514), 2853 states have call successors, (4514) [2025-03-08 05:29:20,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16586 states to 16586 states and 28501 transitions. [2025-03-08 05:29:20,664 INFO L78 Accepts]: Start accepts. Automaton has 16586 states and 28501 transitions. Word has length 192 [2025-03-08 05:29:20,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:20,664 INFO L471 AbstractCegarLoop]: Abstraction has 16586 states and 28501 transitions. [2025-03-08 05:29:20,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 4 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (23), 4 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-08 05:29:20,664 INFO L276 IsEmpty]: Start isEmpty. Operand 16586 states and 28501 transitions. [2025-03-08 05:29:20,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2025-03-08 05:29:20,676 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:20,676 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:20,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-03-08 05:29:20,676 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:20,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:20,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1446108855, now seen corresponding path program 1 times [2025-03-08 05:29:20,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:20,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744723499] [2025-03-08 05:29:20,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:20,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:20,692 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 193 statements into 1 equivalence classes. [2025-03-08 05:29:20,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 193 of 193 statements. [2025-03-08 05:29:20,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:20,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:20,967 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-03-08 05:29:20,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:20,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744723499] [2025-03-08 05:29:20,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744723499] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:20,967 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:20,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 05:29:20,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421407423] [2025-03-08 05:29:20,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:20,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 05:29:20,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:20,968 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 05:29:20,969 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:29:20,969 INFO L87 Difference]: Start difference. First operand 16586 states and 28501 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 7 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-08 05:29:26,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:26,721 INFO L93 Difference]: Finished difference Result 73446 states and 138498 transitions. [2025-03-08 05:29:26,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-03-08 05:29:26,722 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 7 states have call predecessors, (23), 4 states have call successors, (23) Word has length 193 [2025-03-08 05:29:26,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:27,317 INFO L225 Difference]: With dead ends: 73446 [2025-03-08 05:29:27,317 INFO L226 Difference]: Without dead ends: 56905 [2025-03-08 05:29:27,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2025-03-08 05:29:27,502 INFO L435 NwaCegarLoop]: 827 mSDtfsCounter, 2744 mSDsluCounter, 4198 mSDsCounter, 0 mSdLazyCounter, 10900 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2861 SdHoareTripleChecker+Valid, 5025 SdHoareTripleChecker+Invalid, 11623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 10900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:27,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2861 Valid, 5025 Invalid, 11623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 10900 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2025-03-08 05:29:27,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56905 states. [2025-03-08 05:29:29,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56905 to 55632. [2025-03-08 05:29:30,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55632 states, 42144 states have (on average 1.623457668944571) internal successors, (68419), 43877 states have internal predecessors, (68419), 10700 states have call successors, (10700), 2406 states have call predecessors, (10700), 2787 states have return successors, (23810), 10916 states have call predecessors, (23810), 10695 states have call successors, (23810) [2025-03-08 05:29:30,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55632 states to 55632 states and 102929 transitions. [2025-03-08 05:29:30,649 INFO L78 Accepts]: Start accepts. Automaton has 55632 states and 102929 transitions. Word has length 193 [2025-03-08 05:29:30,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:30,649 INFO L471 AbstractCegarLoop]: Abstraction has 55632 states and 102929 transitions. [2025-03-08 05:29:30,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 7 states have call predecessors, (23), 4 states have call successors, (23) [2025-03-08 05:29:30,650 INFO L276 IsEmpty]: Start isEmpty. Operand 55632 states and 102929 transitions. [2025-03-08 05:29:30,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2025-03-08 05:29:30,706 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:30,706 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:30,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-03-08 05:29:30,707 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:30,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:30,707 INFO L85 PathProgramCache]: Analyzing trace with hash 602637084, now seen corresponding path program 1 times [2025-03-08 05:29:30,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:30,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135939612] [2025-03-08 05:29:30,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:30,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:30,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 196 statements into 1 equivalence classes. [2025-03-08 05:29:30,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 196 of 196 statements. [2025-03-08 05:29:30,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:30,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:30,858 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-03-08 05:29:30,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:30,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135939612] [2025-03-08 05:29:30,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135939612] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:30,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:30,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 05:29:30,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91682055] [2025-03-08 05:29:30,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:30,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 05:29:30,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:30,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 05:29:30,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:29:30,861 INFO L87 Difference]: Start difference. First operand 55632 states and 102929 transitions. Second operand has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-08 05:29:32,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:32,583 INFO L93 Difference]: Finished difference Result 72021 states and 131100 transitions. [2025-03-08 05:29:32,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:29:32,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 196 [2025-03-08 05:29:32,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:32,720 INFO L225 Difference]: With dead ends: 72021 [2025-03-08 05:29:32,720 INFO L226 Difference]: Without dead ends: 16423 [2025-03-08 05:29:32,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:29:32,981 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 8 mSDsluCounter, 5173 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6039 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:32,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6039 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:29:32,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16423 states. [2025-03-08 05:29:33,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16423 to 16423. [2025-03-08 05:29:33,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16423 states, 12794 states have (on average 1.6384242613725184) internal successors, (20962), 13247 states have internal predecessors, (20962), 2794 states have call successors, (2794), 805 states have call predecessors, (2794), 834 states have return successors, (4450), 2786 states have call predecessors, (4450), 2789 states have call successors, (4450) [2025-03-08 05:29:33,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16423 states to 16423 states and 28206 transitions. [2025-03-08 05:29:33,505 INFO L78 Accepts]: Start accepts. Automaton has 16423 states and 28206 transitions. Word has length 196 [2025-03-08 05:29:33,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:33,506 INFO L471 AbstractCegarLoop]: Abstraction has 16423 states and 28206 transitions. [2025-03-08 05:29:33,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.714285714285715) internal successors, (124), 7 states have internal predecessors, (124), 3 states have call successors, (24), 2 states have call predecessors, (24), 4 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2025-03-08 05:29:33,506 INFO L276 IsEmpty]: Start isEmpty. Operand 16423 states and 28206 transitions. [2025-03-08 05:29:33,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2025-03-08 05:29:33,516 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:33,516 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:33,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-03-08 05:29:33,517 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:33,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:33,517 INFO L85 PathProgramCache]: Analyzing trace with hash -163326389, now seen corresponding path program 1 times [2025-03-08 05:29:33,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:33,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603405512] [2025-03-08 05:29:33,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:33,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:33,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 201 statements into 1 equivalence classes. [2025-03-08 05:29:33,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 201 of 201 statements. [2025-03-08 05:29:33,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:33,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:34,121 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-03-08 05:29:34,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:34,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603405512] [2025-03-08 05:29:34,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603405512] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:34,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:34,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 05:29:34,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518432917] [2025-03-08 05:29:34,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:34,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 05:29:34,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:34,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 05:29:34,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:29:34,123 INFO L87 Difference]: Start difference. First operand 16423 states and 28206 transitions. Second operand has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 8 states have internal predecessors, (128), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-08 05:29:36,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:36,170 INFO L93 Difference]: Finished difference Result 32932 states and 57713 transitions. [2025-03-08 05:29:36,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 05:29:36,170 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 8 states have internal predecessors, (128), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) Word has length 201 [2025-03-08 05:29:36,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:36,287 INFO L225 Difference]: With dead ends: 32932 [2025-03-08 05:29:36,287 INFO L226 Difference]: Without dead ends: 16551 [2025-03-08 05:29:36,375 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:29:36,376 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 1326 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 3543 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 3543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:36,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1326 Valid, 1719 Invalid, 3910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 3543 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-08 05:29:36,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16551 states. [2025-03-08 05:29:37,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16551 to 16551. [2025-03-08 05:29:37,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16551 states, 12890 states have (on average 1.6336695112490303) internal successors, (21058), 13343 states have internal predecessors, (21058), 2794 states have call successors, (2794), 805 states have call predecessors, (2794), 866 states have return successors, (4610), 2818 states have call predecessors, (4610), 2789 states have call successors, (4610) [2025-03-08 05:29:37,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16551 states to 16551 states and 28462 transitions. [2025-03-08 05:29:37,288 INFO L78 Accepts]: Start accepts. Automaton has 16551 states and 28462 transitions. Word has length 201 [2025-03-08 05:29:37,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:37,289 INFO L471 AbstractCegarLoop]: Abstraction has 16551 states and 28462 transitions. [2025-03-08 05:29:37,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.222222222222221) internal successors, (128), 8 states have internal predecessors, (128), 5 states have call successors, (25), 3 states have call predecessors, (25), 5 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-08 05:29:37,289 INFO L276 IsEmpty]: Start isEmpty. Operand 16551 states and 28462 transitions. [2025-03-08 05:29:37,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2025-03-08 05:29:37,302 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:37,302 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:37,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-03-08 05:29:37,305 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:37,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:37,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1187565786, now seen corresponding path program 1 times [2025-03-08 05:29:37,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:37,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498554144] [2025-03-08 05:29:37,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:37,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:37,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 202 statements into 1 equivalence classes. [2025-03-08 05:29:37,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 202 of 202 statements. [2025-03-08 05:29:37,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:37,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:37,517 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-03-08 05:29:37,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:37,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498554144] [2025-03-08 05:29:37,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498554144] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:37,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:29:37,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 05:29:37,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918778493] [2025-03-08 05:29:37,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:37,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 05:29:37,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:37,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 05:29:37,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:29:37,520 INFO L87 Difference]: Start difference. First operand 16551 states and 28462 transitions. Second operand has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 5 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-08 05:29:41,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:41,346 INFO L93 Difference]: Finished difference Result 65151 states and 116795 transitions. [2025-03-08 05:29:41,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-08 05:29:41,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 5 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) Word has length 202 [2025-03-08 05:29:41,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:41,646 INFO L225 Difference]: With dead ends: 65151 [2025-03-08 05:29:41,646 INFO L226 Difference]: Without dead ends: 48642 [2025-03-08 05:29:41,740 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2025-03-08 05:29:41,741 INFO L435 NwaCegarLoop]: 526 mSDtfsCounter, 3551 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 5353 mSolverCounterSat, 977 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3629 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 6330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 977 IncrementalHoareTripleChecker+Valid, 5353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:41,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3629 Valid, 2338 Invalid, 6330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [977 Valid, 5353 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-03-08 05:29:41,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48642 states. [2025-03-08 05:29:43,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48642 to 48238. [2025-03-08 05:29:43,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48238 states, 37476 states have (on average 1.6047070124879923) internal successors, (60138), 38824 states have internal predecessors, (60138), 8168 states have call successors, (8168), 2501 states have call predecessors, (8168), 2593 states have return successors, (15904), 8065 states have call predecessors, (15904), 8163 states have call successors, (15904) [2025-03-08 05:29:44,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48238 states to 48238 states and 84210 transitions. [2025-03-08 05:29:44,162 INFO L78 Accepts]: Start accepts. Automaton has 48238 states and 84210 transitions. Word has length 202 [2025-03-08 05:29:44,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:44,162 INFO L471 AbstractCegarLoop]: Abstraction has 48238 states and 84210 transitions. [2025-03-08 05:29:44,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 8 states have internal predecessors, (130), 5 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (24), 6 states have call predecessors, (24), 4 states have call successors, (24) [2025-03-08 05:29:44,163 INFO L276 IsEmpty]: Start isEmpty. Operand 48238 states and 84210 transitions. [2025-03-08 05:29:44,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2025-03-08 05:29:44,172 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:44,172 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:44,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-03-08 05:29:44,172 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:44,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:44,172 INFO L85 PathProgramCache]: Analyzing trace with hash 77717738, now seen corresponding path program 1 times [2025-03-08 05:29:44,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:44,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435037928] [2025-03-08 05:29:44,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:44,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:44,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes. [2025-03-08 05:29:44,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements. [2025-03-08 05:29:44,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:44,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:44,333 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2025-03-08 05:29:44,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:44,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435037928] [2025-03-08 05:29:44,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435037928] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:29:44,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636727283] [2025-03-08 05:29:44,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:44,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:44,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:44,335 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:29:44,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 05:29:44,465 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes. [2025-03-08 05:29:44,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements. [2025-03-08 05:29:44,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:44,594 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:44,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 1944 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:29:44,604 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:29:44,642 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-08 05:29:44,642 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:29:44,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636727283] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:44,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:29:44,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-08 05:29:44,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963446684] [2025-03-08 05:29:44,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:44,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:29:44,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:44,643 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:29:44,643 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:29:44,644 INFO L87 Difference]: Start difference. First operand 48238 states and 84210 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2025-03-08 05:29:46,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:46,855 INFO L93 Difference]: Finished difference Result 100753 states and 180919 transitions. [2025-03-08 05:29:46,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:29:46,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 204 [2025-03-08 05:29:46,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:47,282 INFO L225 Difference]: With dead ends: 100753 [2025-03-08 05:29:47,282 INFO L226 Difference]: Without dead ends: 52558 [2025-03-08 05:29:47,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:29:47,528 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 144 mSDsluCounter, 1595 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:47,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2404 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:29:47,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52558 states. [2025-03-08 05:29:49,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52558 to 51982. [2025-03-08 05:29:49,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51982 states, 41124 states have (on average 1.6327691858768603) internal successors, (67146), 42472 states have internal predecessors, (67146), 8168 states have call successors, (8168), 2597 states have call predecessors, (8168), 2689 states have return successors, (15904), 8065 states have call predecessors, (15904), 8163 states have call successors, (15904) [2025-03-08 05:29:49,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51982 states to 51982 states and 91218 transitions. [2025-03-08 05:29:49,781 INFO L78 Accepts]: Start accepts. Automaton has 51982 states and 91218 transitions. Word has length 204 [2025-03-08 05:29:49,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:49,781 INFO L471 AbstractCegarLoop]: Abstraction has 51982 states and 91218 transitions. [2025-03-08 05:29:49,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2025-03-08 05:29:49,782 INFO L276 IsEmpty]: Start isEmpty. Operand 51982 states and 91218 transitions. [2025-03-08 05:29:49,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2025-03-08 05:29:49,791 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:49,791 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:49,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-08 05:29:49,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-08 05:29:49,992 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:49,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:49,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2112390880, now seen corresponding path program 1 times [2025-03-08 05:29:49,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:49,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101917698] [2025-03-08 05:29:49,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:49,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:50,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-08 05:29:50,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-08 05:29:50,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:50,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:50,229 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-03-08 05:29:50,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:50,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101917698] [2025-03-08 05:29:50,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101917698] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:29:50,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574860576] [2025-03-08 05:29:50,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:50,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:50,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:50,235 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:29:50,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-08 05:29:50,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 209 statements into 1 equivalence classes. [2025-03-08 05:29:50,498 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 209 of 209 statements. [2025-03-08 05:29:50,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:50,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:50,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:29:50,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:29:50,532 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-08 05:29:50,532 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:29:50,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574860576] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:50,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:29:50,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2025-03-08 05:29:50,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972912091] [2025-03-08 05:29:50,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:50,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:29:50,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:50,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:29:50,534 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:29:50,534 INFO L87 Difference]: Start difference. First operand 51982 states and 91218 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2025-03-08 05:29:53,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:29:53,347 INFO L93 Difference]: Finished difference Result 108241 states and 195223 transitions. [2025-03-08 05:29:53,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:29:53,347 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 209 [2025-03-08 05:29:53,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:29:53,828 INFO L225 Difference]: With dead ends: 108241 [2025-03-08 05:29:53,828 INFO L226 Difference]: Without dead ends: 56302 [2025-03-08 05:29:54,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:29:54,121 INFO L435 NwaCegarLoop]: 811 mSDtfsCounter, 140 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:29:54,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 2407 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:29:54,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56302 states. [2025-03-08 05:29:56,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56302 to 55726. [2025-03-08 05:29:56,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55726 states, 44676 states have (on average 1.657668546870803) internal successors, (74058), 46024 states have internal predecessors, (74058), 8264 states have call successors, (8264), 2693 states have call predecessors, (8264), 2785 states have return successors, (16000), 8161 states have call predecessors, (16000), 8259 states have call successors, (16000) [2025-03-08 05:29:56,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55726 states to 55726 states and 98322 transitions. [2025-03-08 05:29:56,991 INFO L78 Accepts]: Start accepts. Automaton has 55726 states and 98322 transitions. Word has length 209 [2025-03-08 05:29:56,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:29:56,991 INFO L471 AbstractCegarLoop]: Abstraction has 55726 states and 98322 transitions. [2025-03-08 05:29:56,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2025-03-08 05:29:56,991 INFO L276 IsEmpty]: Start isEmpty. Operand 55726 states and 98322 transitions. [2025-03-08 05:29:57,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2025-03-08 05:29:57,000 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:29:57,000 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:29:57,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-08 05:29:57,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:57,201 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:29:57,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:29:57,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1883294204, now seen corresponding path program 1 times [2025-03-08 05:29:57,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:29:57,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759938603] [2025-03-08 05:29:57,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:57,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:29:57,388 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-08 05:29:57,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-08 05:29:57,412 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:57,412 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2025-03-08 05:29:57,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:29:57,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759938603] [2025-03-08 05:29:57,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759938603] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:29:57,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450664797] [2025-03-08 05:29:57,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:29:57,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:29:57,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:29:57,530 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:29:57,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-08 05:29:57,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 210 statements into 1 equivalence classes. [2025-03-08 05:29:58,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 210 of 210 statements. [2025-03-08 05:29:58,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:29:58,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:29:58,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 1950 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:29:58,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:29:58,058 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-08 05:29:58,058 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:29:58,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450664797] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:29:58,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:29:58,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-08 05:29:58,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545257414] [2025-03-08 05:29:58,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:29:58,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:29:58,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:29:58,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:29:58,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:29:58,060 INFO L87 Difference]: Start difference. First operand 55726 states and 98322 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25)