./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product19.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 d96f41c83679efe744540e7fde7918287d6cc79be28bb1ad9b63bf8e0d07ce19 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 14:50:32,148 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 14:50:32,201 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 14:50:32,206 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 14:50:32,207 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 14:50:32,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 14:50:32,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 14:50:32,236 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 14:50:32,237 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 14:50:32,238 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 14:50:32,239 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 14:50:32,239 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 14:50:32,239 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 14:50:32,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 14:50:32,241 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 14:50:32,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 14:50:32,241 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 14:50:32,242 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 14:50:32,242 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 14:50:32,242 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 14:50:32,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 14:50:32,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 14:50:32,245 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 14:50:32,245 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 14:50:32,245 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 14:50:32,245 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 14:50:32,245 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 14:50:32,246 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 14:50:32,246 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 14:50:32,246 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 14:50:32,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 14:50:32,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 14:50:32,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:50:32,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 14:50:32,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 14:50:32,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 14:50:32,247 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 14:50:32,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 14:50:32,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 14:50:32,248 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 14:50:32,248 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 14:50:32,249 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 14:50:32,249 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d96f41c83679efe744540e7fde7918287d6cc79be28bb1ad9b63bf8e0d07ce19 [2024-11-08 14:50:32,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 14:50:32,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 14:50:32,470 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 14:50:32,471 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 14:50:32,471 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 14:50:32,472 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c [2024-11-08 14:50:33,644 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 14:50:33,898 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 14:50:33,899 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c [2024-11-08 14:50:33,919 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fac77304/5c22e82aa6ec415aa1b6e143f97aaa0e/FLAG6d3b77c57 [2024-11-08 14:50:34,207 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fac77304/5c22e82aa6ec415aa1b6e143f97aaa0e [2024-11-08 14:50:34,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 14:50:34,210 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 14:50:34,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 14:50:34,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 14:50:34,216 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 14:50:34,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:34,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78a25f1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34, skipping insertion in model container [2024-11-08 14:50:34,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:34,267 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 14:50:34,581 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_spec2_product19.cil.c[34453,34466] [2024-11-08 14:50:34,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:50:34,700 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 14:50:34,710 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [48] [2024-11-08 14:50:34,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1596] [2024-11-08 14:50:34,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1605] [2024-11-08 14:50:34,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2267] [2024-11-08 14:50:34,711 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [2281] [2024-11-08 14:50:34,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2462] [2024-11-08 14:50:34,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2581] [2024-11-08 14:50:34,712 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2673] [2024-11-08 14:50:34,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3026] [2024-11-08 14:50:34,713 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3392] [2024-11-08 14:50:34,762 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_spec2_product19.cil.c[34453,34466] [2024-11-08 14:50:34,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:50:34,827 INFO L204 MainTranslator]: Completed translation [2024-11-08 14:50:34,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34 WrapperNode [2024-11-08 14:50:34,828 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 14:50:34,829 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 14:50:34,829 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 14:50:34,829 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 14:50:34,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:34,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:34,898 INFO L138 Inliner]: procedures = 94, calls = 340, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 1118 [2024-11-08 14:50:34,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 14:50:34,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 14:50:34,900 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 14:50:34,900 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 14:50:34,908 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:34,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:34,915 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:34,958 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]. [2024-11-08 14:50:34,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:34,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:34,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:35,008 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:35,013 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:35,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:35,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 14:50:35,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 14:50:35,033 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 14:50:35,034 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 14:50:35,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (1/1) ... [2024-11-08 14:50:35,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:50:35,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:50:35,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 14:50:35,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 14:50:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 14:50:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-08 14:50:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-08 14:50:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-08 14:50:35,106 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-08 14:50:35,106 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2024-11-08 14:50:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2024-11-08 14:50:35,107 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-08 14:50:35,107 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-08 14:50:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-08 14:50:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-08 14:50:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-08 14:50:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-08 14:50:35,108 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-08 14:50:35,108 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-08 14:50:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 14:50:35,109 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 14:50:35,109 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 14:50:35,109 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 14:50:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-08 14:50:35,110 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-08 14:50:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-08 14:50:35,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-08 14:50:35,110 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-08 14:50:35,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-08 14:50:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-08 14:50:35,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-08 14:50:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-08 14:50:35,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-08 14:50:35,111 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-08 14:50:35,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-08 14:50:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-08 14:50:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-08 14:50:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-08 14:50:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-08 14:50:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-08 14:50:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-08 14:50:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-08 14:50:35,112 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-08 14:50:35,112 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-08 14:50:35,113 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-08 14:50:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 14:50:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 14:50:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 14:50:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 14:50:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 14:50:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 14:50:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 14:50:35,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 14:50:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 14:50:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-08 14:50:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-08 14:50:35,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-08 14:50:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-08 14:50:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-08 14:50:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-08 14:50:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-08 14:50:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-08 14:50:35,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-08 14:50:35,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-08 14:50:35,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-08 14:50:35,116 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-08 14:50:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-08 14:50:35,116 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-08 14:50:35,116 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-08 14:50:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-08 14:50:35,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-08 14:50:35,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 14:50:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 14:50:35,118 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-08 14:50:35,118 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-08 14:50:35,276 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 14:50:35,278 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 14:50:36,224 INFO L? ?]: Removed 449 outVars from TransFormulas that were not future-live. [2024-11-08 14:50:36,225 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 14:50:36,244 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 14:50:36,246 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 14:50:36,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:50:36 BoogieIcfgContainer [2024-11-08 14:50:36,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 14:50:36,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 14:50:36,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 14:50:36,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 14:50:36,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:50:34" (1/3) ... [2024-11-08 14:50:36,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2291d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:50:36, skipping insertion in model container [2024-11-08 14:50:36,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:34" (2/3) ... [2024-11-08 14:50:36,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e2291d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:50:36, skipping insertion in model container [2024-11-08 14:50:36,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:50:36" (3/3) ... [2024-11-08 14:50:36,255 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product19.cil.c [2024-11-08 14:50:36,267 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 14:50:36,267 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 14:50:36,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 14:50:36,333 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;@404f1cfc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 14:50:36,333 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 14:50:36,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 560 states, 438 states have (on average 1.6894977168949772) internal successors, (740), 459 states have internal predecessors, (740), 96 states have call successors, (96), 24 states have call predecessors, (96), 24 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-08 14:50:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 14:50:36,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:36,361 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:36,362 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:36,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:36,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1065418536, now seen corresponding path program 1 times [2024-11-08 14:50:36,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:36,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380186175] [2024-11-08 14:50:36,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:36,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:36,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:36,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:36,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:50:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:37,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 14:50:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:37,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:37,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:37,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:37,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:37,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:37,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:50:37,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:37,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:50:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:37,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:37,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:37,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:37,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:50:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:37,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:50:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:50:37,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:37,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380186175] [2024-11-08 14:50:37,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380186175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:37,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:37,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:50:37,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660658031] [2024-11-08 14:50:37,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:37,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:50:37,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:37,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:50:37,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:50:37,371 INFO L87 Difference]: Start difference. First operand has 560 states, 438 states have (on average 1.6894977168949772) internal successors, (740), 459 states have internal predecessors, (740), 96 states have call successors, (96), 24 states have call predecessors, (96), 24 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:50:41,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:41,738 INFO L93 Difference]: Finished difference Result 1361 states and 2301 transitions. [2024-11-08 14:50:41,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:50:41,740 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2024-11-08 14:50:41,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:41,768 INFO L225 Difference]: With dead ends: 1361 [2024-11-08 14:50:41,768 INFO L226 Difference]: Without dead ends: 813 [2024-11-08 14:50:41,775 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:50:41,777 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 1401 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 2886 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 3243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 2886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:41,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1837 Invalid, 3243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 2886 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-08 14:50:41,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-08 14:50:41,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 552. [2024-11-08 14:50:41,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 432 states have (on average 1.6851851851851851) internal successors, (728), 451 states have internal predecessors, (728), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-08 14:50:41,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 915 transitions. [2024-11-08 14:50:41,949 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 915 transitions. Word has length 102 [2024-11-08 14:50:41,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:41,950 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 915 transitions. [2024-11-08 14:50:41,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:50:41,950 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 915 transitions. [2024-11-08 14:50:41,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 14:50:41,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:41,955 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:41,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 14:50:41,956 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:41,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:41,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1233827054, now seen corresponding path program 1 times [2024-11-08 14:50:41,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:41,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981548512] [2024-11-08 14:50:41,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:41,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 14:50:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:42,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:50:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:50:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:50:42,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:50:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:42,457 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:50:42,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:42,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981548512] [2024-11-08 14:50:42,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981548512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:42,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:42,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:50:42,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521513219] [2024-11-08 14:50:42,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:42,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:50:42,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:42,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:50:42,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:50:42,460 INFO L87 Difference]: Start difference. First operand 552 states and 915 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:50:45,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:45,930 INFO L93 Difference]: Finished difference Result 1347 states and 2263 transitions. [2024-11-08 14:50:45,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:50:45,931 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2024-11-08 14:50:45,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:45,936 INFO L225 Difference]: With dead ends: 1347 [2024-11-08 14:50:45,936 INFO L226 Difference]: Without dead ends: 813 [2024-11-08 14:50:45,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:50:45,938 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 1411 mSDsluCounter, 1313 mSDsCounter, 0 mSdLazyCounter, 2759 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1790 SdHoareTripleChecker+Invalid, 3121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 2759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:45,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1790 Invalid, 3121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 2759 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-08 14:50:45,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-08 14:50:46,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 552. [2024-11-08 14:50:46,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 432 states have (on average 1.6828703703703705) internal successors, (727), 451 states have internal predecessors, (727), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-08 14:50:46,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 914 transitions. [2024-11-08 14:50:46,041 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 914 transitions. Word has length 105 [2024-11-08 14:50:46,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:46,041 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 914 transitions. [2024-11-08 14:50:46,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:50:46,042 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 914 transitions. [2024-11-08 14:50:46,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 14:50:46,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:46,044 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:46,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 14:50:46,045 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:46,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:46,045 INFO L85 PathProgramCache]: Analyzing trace with hash 618878632, now seen corresponding path program 1 times [2024-11-08 14:50:46,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:46,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887752243] [2024-11-08 14:50:46,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:46,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:50:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:50:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:46,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:50:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:50:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:46,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:50:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:50:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:46,512 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:50:46,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:46,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887752243] [2024-11-08 14:50:46,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887752243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:46,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:46,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:50:46,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068426491] [2024-11-08 14:50:46,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:46,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:50:46,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:46,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:50:46,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:50:46,514 INFO L87 Difference]: Start difference. First operand 552 states and 914 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:50:50,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:50,178 INFO L93 Difference]: Finished difference Result 1347 states and 2262 transitions. [2024-11-08 14:50:50,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:50:50,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2024-11-08 14:50:50,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:50,185 INFO L225 Difference]: With dead ends: 1347 [2024-11-08 14:50:50,185 INFO L226 Difference]: Without dead ends: 813 [2024-11-08 14:50:50,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:50:50,189 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 964 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 2954 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 3159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 2954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:50,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 1872 Invalid, 3159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 2954 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 14:50:50,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-08 14:50:50,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 552. [2024-11-08 14:50:50,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 432 states have (on average 1.6805555555555556) internal successors, (726), 451 states have internal predecessors, (726), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-08 14:50:50,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 913 transitions. [2024-11-08 14:50:50,281 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 913 transitions. Word has length 106 [2024-11-08 14:50:50,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:50,282 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 913 transitions. [2024-11-08 14:50:50,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:50:50,282 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 913 transitions. [2024-11-08 14:50:50,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 14:50:50,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:50,284 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:50,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 14:50:50,285 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:50,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:50,285 INFO L85 PathProgramCache]: Analyzing trace with hash -2133787826, now seen corresponding path program 1 times [2024-11-08 14:50:50,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:50,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935176070] [2024-11-08 14:50:50,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:50,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:50,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 14:50:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 14:50:50,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:50,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:50:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:50:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:50,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:50:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:50:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:50,779 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:50:50,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:50,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935176070] [2024-11-08 14:50:50,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935176070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:50,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:50,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:50:50,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091458143] [2024-11-08 14:50:50,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:50,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:50:50,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:50,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:50:50,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:50:50,782 INFO L87 Difference]: Start difference. First operand 552 states and 913 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:50:54,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:54,392 INFO L93 Difference]: Finished difference Result 1347 states and 2261 transitions. [2024-11-08 14:50:54,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:50:54,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2024-11-08 14:50:54,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:54,397 INFO L225 Difference]: With dead ends: 1347 [2024-11-08 14:50:54,397 INFO L226 Difference]: Without dead ends: 813 [2024-11-08 14:50:54,399 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:50:54,400 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 960 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 2958 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 3163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 2958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:54,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1872 Invalid, 3163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 2958 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 14:50:54,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-08 14:50:54,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 552. [2024-11-08 14:50:54,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 432 states have (on average 1.6782407407407407) internal successors, (725), 451 states have internal predecessors, (725), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-08 14:50:54,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 912 transitions. [2024-11-08 14:50:54,491 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 912 transitions. Word has length 107 [2024-11-08 14:50:54,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:54,491 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 912 transitions. [2024-11-08 14:50:54,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:50:54,492 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 912 transitions. [2024-11-08 14:50:54,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 14:50:54,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:54,494 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:54,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 14:50:54,494 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:54,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:54,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1624102684, now seen corresponding path program 1 times [2024-11-08 14:50:54,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:54,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876207146] [2024-11-08 14:50:54,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:54,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:54,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:50:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:50:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:54,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:50:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:50:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:50:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:50:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:50:54,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:54,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876207146] [2024-11-08 14:50:54,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876207146] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:54,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:54,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:50:54,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524253154] [2024-11-08 14:50:54,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:54,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:50:54,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:54,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:50:54,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:50:54,973 INFO L87 Difference]: Start difference. First operand 552 states and 912 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:50:58,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:58,322 INFO L93 Difference]: Finished difference Result 1347 states and 2260 transitions. [2024-11-08 14:50:58,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:50:58,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2024-11-08 14:50:58,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:58,327 INFO L225 Difference]: With dead ends: 1347 [2024-11-08 14:50:58,327 INFO L226 Difference]: Without dead ends: 813 [2024-11-08 14:50:58,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:50:58,329 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 960 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 2938 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 3144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 2938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:58,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1880 Invalid, 3144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 2938 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 14:50:58,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-08 14:50:58,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 552. [2024-11-08 14:50:58,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 432 states have (on average 1.6759259259259258) internal successors, (724), 451 states have internal predecessors, (724), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-08 14:50:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 911 transitions. [2024-11-08 14:50:58,402 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 911 transitions. Word has length 108 [2024-11-08 14:50:58,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:58,402 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 911 transitions. [2024-11-08 14:50:58,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:50:58,402 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 911 transitions. [2024-11-08 14:50:58,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 14:50:58,404 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:58,404 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:58,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 14:50:58,404 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:58,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:58,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1234234250, now seen corresponding path program 1 times [2024-11-08 14:50:58,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:58,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488692413] [2024-11-08 14:50:58,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:58,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:58,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:50:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:50:58,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:50:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:50:58,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:50:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:50:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:50:58,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:58,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488692413] [2024-11-08 14:50:58,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488692413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:58,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:58,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 14:50:58,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773985736] [2024-11-08 14:50:58,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:58,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 14:50:58,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:58,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 14:50:58,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:50:58,880 INFO L87 Difference]: Start difference. First operand 552 states and 911 transitions. Second operand has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 14:51:03,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:03,726 INFO L93 Difference]: Finished difference Result 1324 states and 2210 transitions. [2024-11-08 14:51:03,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 14:51:03,726 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2024-11-08 14:51:03,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:03,730 INFO L225 Difference]: With dead ends: 1324 [2024-11-08 14:51:03,731 INFO L226 Difference]: Without dead ends: 839 [2024-11-08 14:51:03,732 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-08 14:51:03,733 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 1507 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 5127 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 3184 SdHoareTripleChecker+Invalid, 5496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 5127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:03,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 3184 Invalid, 5496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 5127 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-08 14:51:03,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-11-08 14:51:03,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 565. [2024-11-08 14:51:03,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6719457013574661) internal successors, (739), 463 states have internal predecessors, (739), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-08 14:51:03,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 930 transitions. [2024-11-08 14:51:03,814 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 930 transitions. Word has length 109 [2024-11-08 14:51:03,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:03,815 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 930 transitions. [2024-11-08 14:51:03,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 14:51:03,815 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 930 transitions. [2024-11-08 14:51:03,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 14:51:03,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:03,817 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:03,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 14:51:03,818 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:03,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:03,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1219984105, now seen corresponding path program 1 times [2024-11-08 14:51:03,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:03,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211835000] [2024-11-08 14:51:03,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:03,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:03,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:03,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:03,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:03,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:51:04,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:04,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:51:04,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:51:04,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:51:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,245 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:51:04,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:04,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211835000] [2024-11-08 14:51:04,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211835000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:04,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:04,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:51:04,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487949427] [2024-11-08 14:51:04,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:04,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:51:04,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:04,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:51:04,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:51:04,247 INFO L87 Difference]: Start difference. First operand 565 states and 930 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:07,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:07,248 INFO L93 Difference]: Finished difference Result 1350 states and 2252 transitions. [2024-11-08 14:51:07,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:51:07,249 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-08 14:51:07,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:07,253 INFO L225 Difference]: With dead ends: 1350 [2024-11-08 14:51:07,254 INFO L226 Difference]: Without dead ends: 847 [2024-11-08 14:51:07,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:51:07,256 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 1909 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1990 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:07,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1990 Valid, 1742 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 14:51:07,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-08 14:51:07,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 565. [2024-11-08 14:51:07,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.660633484162896) internal successors, (734), 463 states have internal predecessors, (734), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-08 14:51:07,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 925 transitions. [2024-11-08 14:51:07,358 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 925 transitions. Word has length 109 [2024-11-08 14:51:07,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:07,359 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 925 transitions. [2024-11-08 14:51:07,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:07,359 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 925 transitions. [2024-11-08 14:51:07,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 14:51:07,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:07,362 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:07,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 14:51:07,362 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:07,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:07,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1734696347, now seen corresponding path program 1 times [2024-11-08 14:51:07,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:07,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679163916] [2024-11-08 14:51:07,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:07,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:07,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:07,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 14:51:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:07,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:07,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:51:07,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:07,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:51:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:51:07,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,789 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:51:07,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:07,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679163916] [2024-11-08 14:51:07,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679163916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:07,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:07,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:51:07,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027256110] [2024-11-08 14:51:07,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:07,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:51:07,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:07,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:51:07,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:51:07,790 INFO L87 Difference]: Start difference. First operand 565 states and 925 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:10,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:10,814 INFO L93 Difference]: Finished difference Result 1350 states and 2247 transitions. [2024-11-08 14:51:10,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:51:10,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-11-08 14:51:10,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:10,819 INFO L225 Difference]: With dead ends: 1350 [2024-11-08 14:51:10,819 INFO L226 Difference]: Without dead ends: 847 [2024-11-08 14:51:10,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:51:10,821 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 1475 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 2707 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 3071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 2707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:10,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 1799 Invalid, 3071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 2707 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 14:51:10,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-08 14:51:10,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 565. [2024-11-08 14:51:10,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6493212669683257) internal successors, (729), 463 states have internal predecessors, (729), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-08 14:51:10,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 920 transitions. [2024-11-08 14:51:10,903 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 920 transitions. Word has length 110 [2024-11-08 14:51:10,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:10,904 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 920 transitions. [2024-11-08 14:51:10,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:10,904 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 920 transitions. [2024-11-08 14:51:10,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 14:51:10,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:10,906 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:10,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 14:51:10,906 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:10,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:10,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1240337234, now seen corresponding path program 1 times [2024-11-08 14:51:10,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:10,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872904967] [2024-11-08 14:51:10,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:10,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:10,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:11,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 14:51:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:11,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:51:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:11,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:51:11,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:51:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,325 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:51:11,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:11,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872904967] [2024-11-08 14:51:11,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872904967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:11,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:11,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:51:11,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142038943] [2024-11-08 14:51:11,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:11,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:51:11,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:11,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:51:11,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:51:11,326 INFO L87 Difference]: Start difference. First operand 565 states and 920 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:14,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:14,267 INFO L93 Difference]: Finished difference Result 1350 states and 2242 transitions. [2024-11-08 14:51:14,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:51:14,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-11-08 14:51:14,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:14,271 INFO L225 Difference]: With dead ends: 1350 [2024-11-08 14:51:14,271 INFO L226 Difference]: Without dead ends: 847 [2024-11-08 14:51:14,272 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:51:14,273 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1473 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 3052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:14,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 1779 Invalid, 3052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 14:51:14,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-08 14:51:14,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 565. [2024-11-08 14:51:14,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6380090497737556) internal successors, (724), 463 states have internal predecessors, (724), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-08 14:51:14,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 915 transitions. [2024-11-08 14:51:14,357 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 915 transitions. Word has length 111 [2024-11-08 14:51:14,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:14,358 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 915 transitions. [2024-11-08 14:51:14,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:14,358 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 915 transitions. [2024-11-08 14:51:14,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 14:51:14,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:14,360 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:14,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 14:51:14,360 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:14,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:14,360 INFO L85 PathProgramCache]: Analyzing trace with hash -764644192, now seen corresponding path program 1 times [2024-11-08 14:51:14,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:14,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982475085] [2024-11-08 14:51:14,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:14,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:14,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:14,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 14:51:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:14,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:14,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:14,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:51:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:14,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:14,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:51:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:51:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,826 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:51:14,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:14,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982475085] [2024-11-08 14:51:14,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982475085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:14,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:14,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 14:51:14,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402581985] [2024-11-08 14:51:14,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:14,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 14:51:14,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:14,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 14:51:14,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:51:14,828 INFO L87 Difference]: Start difference. First operand 565 states and 915 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 14:51:19,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:19,027 INFO L93 Difference]: Finished difference Result 1327 states and 2197 transitions. [2024-11-08 14:51:19,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 14:51:19,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2024-11-08 14:51:19,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:19,032 INFO L225 Difference]: With dead ends: 1327 [2024-11-08 14:51:19,032 INFO L226 Difference]: Without dead ends: 839 [2024-11-08 14:51:19,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-08 14:51:19,034 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 1853 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 4963 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1935 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 5464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 4963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:19,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1935 Valid, 3189 Invalid, 5464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 4963 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 14:51:19,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-11-08 14:51:19,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 565. [2024-11-08 14:51:19,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6357466063348416) internal successors, (723), 463 states have internal predecessors, (723), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-08 14:51:19,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 914 transitions. [2024-11-08 14:51:19,123 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 914 transitions. Word has length 112 [2024-11-08 14:51:19,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:19,123 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 914 transitions. [2024-11-08 14:51:19,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 14:51:19,124 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 914 transitions. [2024-11-08 14:51:19,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 14:51:19,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:19,126 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:19,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 14:51:19,126 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:19,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:19,126 INFO L85 PathProgramCache]: Analyzing trace with hash -728341632, now seen corresponding path program 1 times [2024-11-08 14:51:19,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:19,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463254510] [2024-11-08 14:51:19,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:19,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:19,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:19,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 14:51:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:19,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:19,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:51:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:51:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:51:19,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:19,548 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:51:19,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:19,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463254510] [2024-11-08 14:51:19,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463254510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:19,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:19,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:51:19,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646307126] [2024-11-08 14:51:19,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:19,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:51:19,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:19,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:51:19,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:51:19,550 INFO L87 Difference]: Start difference. First operand 565 states and 914 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:22,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:22,427 INFO L93 Difference]: Finished difference Result 1350 states and 2233 transitions. [2024-11-08 14:51:22,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:51:22,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2024-11-08 14:51:22,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:22,431 INFO L225 Difference]: With dead ends: 1350 [2024-11-08 14:51:22,431 INFO L226 Difference]: Without dead ends: 847 [2024-11-08 14:51:22,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:51:22,433 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 1892 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 2620 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 3123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 2620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:22,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 1753 Invalid, 3123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 2620 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 14:51:22,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-08 14:51:22,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 565. [2024-11-08 14:51:22,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6244343891402715) internal successors, (718), 463 states have internal predecessors, (718), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-08 14:51:22,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 909 transitions. [2024-11-08 14:51:22,522 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 909 transitions. Word has length 112 [2024-11-08 14:51:22,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:22,522 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 909 transitions. [2024-11-08 14:51:22,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:22,522 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 909 transitions. [2024-11-08 14:51:22,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 14:51:22,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:22,524 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:22,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 14:51:22,524 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:22,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:22,524 INFO L85 PathProgramCache]: Analyzing trace with hash 291656529, now seen corresponding path program 1 times [2024-11-08 14:51:22,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:22,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400184734] [2024-11-08 14:51:22,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:22,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:22,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:22,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:51:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:51:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:51:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:51:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:51:22,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:22,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400184734] [2024-11-08 14:51:22,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400184734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:22,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:22,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 14:51:22,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499087467] [2024-11-08 14:51:22,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:22,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 14:51:22,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:22,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 14:51:22,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:51:22,995 INFO L87 Difference]: Start difference. First operand 565 states and 909 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 14:51:27,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:27,386 INFO L93 Difference]: Finished difference Result 1336 states and 2201 transitions. [2024-11-08 14:51:27,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 14:51:27,387 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2024-11-08 14:51:27,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:27,390 INFO L225 Difference]: With dead ends: 1336 [2024-11-08 14:51:27,390 INFO L226 Difference]: Without dead ends: 845 [2024-11-08 14:51:27,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-08 14:51:27,392 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 988 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 5082 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 3264 SdHoareTripleChecker+Invalid, 5293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 5082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:27,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 3264 Invalid, 5293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 5082 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-08 14:51:27,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-08 14:51:27,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 568. [2024-11-08 14:51:27,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 445 states have (on average 1.6179775280898876) internal successors, (720), 466 states have internal predecessors, (720), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-08 14:51:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 911 transitions. [2024-11-08 14:51:27,503 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 911 transitions. Word has length 113 [2024-11-08 14:51:27,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:27,504 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 911 transitions. [2024-11-08 14:51:27,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 14:51:27,504 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 911 transitions. [2024-11-08 14:51:27,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 14:51:27,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:27,507 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:27,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 14:51:27,507 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:27,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:27,507 INFO L85 PathProgramCache]: Analyzing trace with hash 507376243, now seen corresponding path program 1 times [2024-11-08 14:51:27,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:27,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686168405] [2024-11-08 14:51:27,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:27,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:27,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:51:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:27,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:51:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:27,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:51:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:51:27,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:27,893 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:51:27,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:27,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686168405] [2024-11-08 14:51:27,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686168405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:27,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:27,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:51:27,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730024857] [2024-11-08 14:51:27,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:27,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:51:27,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:27,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:51:27,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:51:27,894 INFO L87 Difference]: Start difference. First operand 568 states and 911 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:31,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:31,004 INFO L93 Difference]: Finished difference Result 1359 states and 2233 transitions. [2024-11-08 14:51:31,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:51:31,004 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-08 14:51:31,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:31,008 INFO L225 Difference]: With dead ends: 1359 [2024-11-08 14:51:31,008 INFO L226 Difference]: Without dead ends: 853 [2024-11-08 14:51:31,009 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:51:31,010 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 1442 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 2753 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 3107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 2753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:31,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1819 Invalid, 3107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 2753 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 14:51:31,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2024-11-08 14:51:31,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 568. [2024-11-08 14:51:31,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 445 states have (on average 1.6067415730337078) internal successors, (715), 466 states have internal predecessors, (715), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-08 14:51:31,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 906 transitions. [2024-11-08 14:51:31,102 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 906 transitions. Word has length 113 [2024-11-08 14:51:31,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:31,103 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 906 transitions. [2024-11-08 14:51:31,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:31,103 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 906 transitions. [2024-11-08 14:51:31,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 14:51:31,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:31,104 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:31,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 14:51:31,104 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:31,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:31,105 INFO L85 PathProgramCache]: Analyzing trace with hash -158102651, now seen corresponding path program 1 times [2024-11-08 14:51:31,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:31,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137244533] [2024-11-08 14:51:31,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:31,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:51:31,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:31,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:51:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:31,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:51:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:51:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,530 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:51:31,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:31,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137244533] [2024-11-08 14:51:31,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137244533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:31,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:31,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:51:31,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079212296] [2024-11-08 14:51:31,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:31,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:51:31,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:31,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:51:31,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:51:31,532 INFO L87 Difference]: Start difference. First operand 568 states and 906 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:34,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:34,717 INFO L93 Difference]: Finished difference Result 1340 states and 2198 transitions. [2024-11-08 14:51:34,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 14:51:34,717 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-08 14:51:34,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:34,721 INFO L225 Difference]: With dead ends: 1340 [2024-11-08 14:51:34,721 INFO L226 Difference]: Without dead ends: 849 [2024-11-08 14:51:34,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:51:34,723 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 1407 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 2693 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 3048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 2693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:34,723 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1814 Invalid, 3048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 2693 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 14:51:34,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-11-08 14:51:34,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 572. [2024-11-08 14:51:34,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 449 states have (on average 1.599109131403118) internal successors, (718), 470 states have internal predecessors, (718), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-08 14:51:34,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 909 transitions. [2024-11-08 14:51:34,816 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 909 transitions. Word has length 114 [2024-11-08 14:51:34,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:34,817 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 909 transitions. [2024-11-08 14:51:34,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:34,817 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 909 transitions. [2024-11-08 14:51:34,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 14:51:34,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:34,819 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:34,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 14:51:34,819 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:34,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:34,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1591319195, now seen corresponding path program 1 times [2024-11-08 14:51:34,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:34,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027355422] [2024-11-08 14:51:34,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:34,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:34,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:34,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:34,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:51:35,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:35,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:35,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:51:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:51:35,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:51:35,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:51:35,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:35,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027355422] [2024-11-08 14:51:35,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027355422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:35,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:35,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:51:35,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432004950] [2024-11-08 14:51:35,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:35,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:51:35,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:35,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:51:35,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:51:35,235 INFO L87 Difference]: Start difference. First operand 572 states and 909 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:38,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:38,227 INFO L93 Difference]: Finished difference Result 1395 states and 2261 transitions. [2024-11-08 14:51:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:51:38,228 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-08 14:51:38,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:38,232 INFO L225 Difference]: With dead ends: 1395 [2024-11-08 14:51:38,232 INFO L226 Difference]: Without dead ends: 821 [2024-11-08 14:51:38,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:51:38,233 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 1805 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 2585 mSolverCounterSat, 505 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 3090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 2585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:38,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 1745 Invalid, 3090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 2585 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 14:51:38,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-08 14:51:38,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 553. [2024-11-08 14:51:38,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 433 states have (on average 1.6073903002309469) internal successors, (696), 452 states have internal predecessors, (696), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-08 14:51:38,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 883 transitions. [2024-11-08 14:51:38,327 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 883 transitions. Word has length 114 [2024-11-08 14:51:38,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:38,328 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 883 transitions. [2024-11-08 14:51:38,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-08 14:51:38,328 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 883 transitions. [2024-11-08 14:51:38,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 14:51:38,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:38,329 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:38,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 14:51:38,330 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:38,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:38,330 INFO L85 PathProgramCache]: Analyzing trace with hash -51078506, now seen corresponding path program 1 times [2024-11-08 14:51:38,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:38,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026781666] [2024-11-08 14:51:38,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:38,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:38,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:38,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 14:51:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:51:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:51:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:51:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,785 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:51:38,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:38,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026781666] [2024-11-08 14:51:38,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026781666] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:38,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:38,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 14:51:38,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156674472] [2024-11-08 14:51:38,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:38,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 14:51:38,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:38,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 14:51:38,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:51:38,788 INFO L87 Difference]: Start difference. First operand 553 states and 883 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 14:51:42,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:42,919 INFO L93 Difference]: Finished difference Result 1319 states and 2163 transitions. [2024-11-08 14:51:42,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 14:51:42,919 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 115 [2024-11-08 14:51:42,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:42,923 INFO L225 Difference]: With dead ends: 1319 [2024-11-08 14:51:42,923 INFO L226 Difference]: Without dead ends: 831 [2024-11-08 14:51:42,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-08 14:51:42,925 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1395 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 4798 mSolverCounterSat, 365 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 3183 SdHoareTripleChecker+Invalid, 5163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 365 IncrementalHoareTripleChecker+Valid, 4798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:42,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 3183 Invalid, 5163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [365 Valid, 4798 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 14:51:42,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2024-11-08 14:51:43,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 558. [2024-11-08 14:51:43,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 438 states have (on average 1.6004566210045663) internal successors, (701), 457 states have internal predecessors, (701), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-08 14:51:43,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 888 transitions. [2024-11-08 14:51:43,037 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 888 transitions. Word has length 115 [2024-11-08 14:51:43,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:43,037 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 888 transitions. [2024-11-08 14:51:43,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 14:51:43,037 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 888 transitions. [2024-11-08 14:51:43,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 14:51:43,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:43,039 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:43,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 14:51:43,039 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:43,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:43,039 INFO L85 PathProgramCache]: Analyzing trace with hash -103270278, now seen corresponding path program 1 times [2024-11-08 14:51:43,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:43,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488746678] [2024-11-08 14:51:43,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:43,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:43,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:51:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:43,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 14:51:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:43,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 14:51:43,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 14:51:43,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:43,560 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 14:51:43,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:43,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488746678] [2024-11-08 14:51:43,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488746678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:43,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:43,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 14:51:43,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235467642] [2024-11-08 14:51:43,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:43,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 14:51:43,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:43,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 14:51:43,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:51:43,561 INFO L87 Difference]: Start difference. First operand 558 states and 888 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 14:51:49,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:49,346 INFO L93 Difference]: Finished difference Result 1320 states and 2204 transitions. [2024-11-08 14:51:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 14:51:49,347 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12) Word has length 116 [2024-11-08 14:51:49,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:49,351 INFO L225 Difference]: With dead ends: 1320 [2024-11-08 14:51:49,351 INFO L226 Difference]: Without dead ends: 840 [2024-11-08 14:51:49,352 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=156, Invalid=546, Unknown=0, NotChecked=0, Total=702 [2024-11-08 14:51:49,353 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 3562 mSDsluCounter, 2366 mSDsCounter, 0 mSdLazyCounter, 7738 mSolverCounterSat, 1263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3562 SdHoareTripleChecker+Valid, 2734 SdHoareTripleChecker+Invalid, 9001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1263 IncrementalHoareTripleChecker+Valid, 7738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:49,353 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3562 Valid, 2734 Invalid, 9001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1263 Valid, 7738 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-08 14:51:49,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2024-11-08 14:51:49,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 567. [2024-11-08 14:51:49,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 445 states have (on average 1.5910112359550561) internal successors, (708), 463 states have internal predecessors, (708), 96 states have call successors, (96), 24 states have call predecessors, (96), 25 states have return successors, (110), 92 states have call predecessors, (110), 91 states have call successors, (110) [2024-11-08 14:51:49,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 914 transitions. [2024-11-08 14:51:49,459 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 914 transitions. Word has length 116 [2024-11-08 14:51:49,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:49,460 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 914 transitions. [2024-11-08 14:51:49,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-08 14:51:49,460 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 914 transitions. [2024-11-08 14:51:49,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 14:51:49,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:49,461 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:49,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 14:51:49,462 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:49,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:49,462 INFO L85 PathProgramCache]: Analyzing trace with hash -790027358, now seen corresponding path program 1 times [2024-11-08 14:51:49,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:49,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658550015] [2024-11-08 14:51:49,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:49,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:51:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:51:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 14:51:49,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 14:51:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 14:51:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,984 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 14:51:49,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:49,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658550015] [2024-11-08 14:51:49,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658550015] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:51:49,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280149953] [2024-11-08 14:51:49,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:49,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:51:49,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:51:49,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:51:49,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 14:51:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:50,247 INFO L255 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 14:51:50,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:51:50,357 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 14:51:50,357 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:51:50,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280149953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:50,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:51:50,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 15 [2024-11-08 14:51:50,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133896341] [2024-11-08 14:51:50,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:50,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:51:50,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:50,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:51:50,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:51:50,359 INFO L87 Difference]: Start difference. First operand 567 states and 914 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:51:50,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:50,785 INFO L93 Difference]: Finished difference Result 1066 states and 1780 transitions. [2024-11-08 14:51:50,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 14:51:50,785 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2024-11-08 14:51:50,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:50,793 INFO L225 Difference]: With dead ends: 1066 [2024-11-08 14:51:50,794 INFO L226 Difference]: Without dead ends: 577 [2024-11-08 14:51:50,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:51:50,795 INFO L432 NwaCegarLoop]: 855 mSDtfsCounter, 823 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:50,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 2203 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 14:51:50,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-08 14:51:50,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 575. [2024-11-08 14:51:50,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 452 states have (on average 1.592920353982301) internal successors, (720), 470 states have internal predecessors, (720), 96 states have call successors, (96), 25 states have call predecessors, (96), 26 states have return successors, (105), 92 states have call predecessors, (105), 91 states have call successors, (105) [2024-11-08 14:51:50,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 921 transitions. [2024-11-08 14:51:50,905 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 921 transitions. Word has length 117 [2024-11-08 14:51:50,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:50,906 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 921 transitions. [2024-11-08 14:51:50,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:51:50,906 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 921 transitions. [2024-11-08 14:51:50,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 14:51:50,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:50,908 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:50,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 14:51:51,108 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,SelfDestructingSolverStorable17 [2024-11-08 14:51:51,109 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:51,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:51,109 INFO L85 PathProgramCache]: Analyzing trace with hash 456328213, now seen corresponding path program 1 times [2024-11-08 14:51:51,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:51,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592866688] [2024-11-08 14:51:51,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:51,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:51,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:51:51,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 14:51:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 14:51:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 14:51:51,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 14:51:51,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 14:51:51,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:51,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592866688] [2024-11-08 14:51:51,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592866688] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:51:51,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [532550269] [2024-11-08 14:51:51,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:51,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:51:51,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:51:51,636 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:51:51,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 14:51:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:51,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 14:51:51,873 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:51:51,951 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 14:51:51,951 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:51:51,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [532550269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:51,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:51:51,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 14 [2024-11-08 14:51:51,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819534488] [2024-11-08 14:51:51,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:51,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 14:51:51,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:51,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 14:51:51,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:51:51,953 INFO L87 Difference]: Start difference. First operand 575 states and 921 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:51:52,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:52,384 INFO L93 Difference]: Finished difference Result 1082 states and 1778 transitions. [2024-11-08 14:51:52,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 14:51:52,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-11-08 14:51:52,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:52,388 INFO L225 Difference]: With dead ends: 1082 [2024-11-08 14:51:52,388 INFO L226 Difference]: Without dead ends: 585 [2024-11-08 14:51:52,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:51:52,390 INFO L432 NwaCegarLoop]: 852 mSDtfsCounter, 814 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:52,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 2200 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 14:51:52,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-08 14:51:52,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2024-11-08 14:51:52,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 460 states have (on average 1.5934782608695652) internal successors, (733), 479 states have internal predecessors, (733), 96 states have call successors, (96), 26 states have call predecessors, (96), 28 states have return successors, (106), 92 states have call predecessors, (106), 91 states have call successors, (106) [2024-11-08 14:51:52,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 935 transitions. [2024-11-08 14:51:52,501 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 935 transitions. Word has length 122 [2024-11-08 14:51:52,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:52,501 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 935 transitions. [2024-11-08 14:51:52,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 14:51:52,501 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 935 transitions. [2024-11-08 14:51:52,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 14:51:52,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:52,503 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:52,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 14:51:52,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:51:52,704 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:52,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:52,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1197558838, now seen corresponding path program 1 times [2024-11-08 14:51:52,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:52,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946830528] [2024-11-08 14:51:52,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:52,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:52,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:52,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:52,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:52,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:52,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:53,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:51:53,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:53,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:53,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:53,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:53,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:53,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 14:51:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:53,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 14:51:53,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:53,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:53,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:53,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:53,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 14:51:53,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:53,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 14:51:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:53,258 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 14:51:53,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:53,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946830528] [2024-11-08 14:51:53,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946830528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:53,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:53,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 14:51:53,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401298486] [2024-11-08 14:51:53,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:53,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 14:51:53,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:53,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 14:51:53,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:51:53,259 INFO L87 Difference]: Start difference. First operand 585 states and 935 transitions. Second operand has 15 states, 15 states have (on average 5.6) internal successors, (84), 9 states have internal predecessors, (84), 4 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12)