./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product24.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 8333bf118d61dc3e3ddedc658c9d6fef28fa288c9b6abdc361c7a0f5f6e109b7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 02:37:49,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 02:37:50,026 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 02:37:50,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 02:37:50,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 02:37:50,054 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 02:37:50,056 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 02:37:50,056 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 02:37:50,057 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 02:37:50,058 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 02:37:50,058 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 02:37:50,059 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 02:37:50,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 02:37:50,060 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 02:37:50,061 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 02:37:50,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 02:37:50,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 02:37:50,061 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 02:37:50,061 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 02:37:50,061 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 02:37:50,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 02:37:50,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 02:37:50,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 02:37:50,065 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 02:37:50,065 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 02:37:50,065 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 02:37:50,065 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 02:37:50,065 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 02:37:50,066 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 02:37:50,066 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 02:37:50,066 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 02:37:50,066 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 02:37:50,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:37:50,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 02:37:50,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 02:37:50,067 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 02:37:50,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 02:37:50,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 02:37:50,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 02:37:50,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 02:37:50,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 02:37:50,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 02:37:50,068 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8333bf118d61dc3e3ddedc658c9d6fef28fa288c9b6abdc361c7a0f5f6e109b7 [2024-10-11 02:37:50,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 02:37:50,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 02:37:50,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 02:37:50,311 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 02:37:50,314 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 02:37:50,315 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product24.cil.c [2024-10-11 02:37:51,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 02:37:51,801 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 02:37:51,802 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product24.cil.c [2024-10-11 02:37:51,818 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/52da841df/ea93146ec792469da250b7d7dab3ddad/FLAG0a86d4608 [2024-10-11 02:37:51,830 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/52da841df/ea93146ec792469da250b7d7dab3ddad [2024-10-11 02:37:51,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 02:37:51,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 02:37:51,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 02:37:51,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 02:37:51,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 02:37:51,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:37:51" (1/1) ... [2024-10-11 02:37:51,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@572a4de5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:51, skipping insertion in model container [2024-10-11 02:37:51,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:37:51" (1/1) ... [2024-10-11 02:37:51,892 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 02:37:52,243 WARN L248 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_spec3_product24.cil.c[75121,75134] [2024-10-11 02:37:52,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:37:52,261 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 02:37:52,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-10-11 02:37:52,270 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [67] [2024-10-11 02:37:52,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [425] [2024-10-11 02:37:52,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [545] [2024-10-11 02:37:52,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [641] [2024-10-11 02:37:52,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2290] [2024-10-11 02:37:52,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [2951] [2024-10-11 02:37:52,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3138] [2024-10-11 02:37:52,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3504] [2024-10-11 02:37:52,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3539] [2024-10-11 02:37:52,351 WARN L248 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_spec3_product24.cil.c[75121,75134] [2024-10-11 02:37:52,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:37:52,399 INFO L204 MainTranslator]: Completed translation [2024-10-11 02:37:52,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52 WrapperNode [2024-10-11 02:37:52,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 02:37:52,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 02:37:52,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 02:37:52,401 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 02:37:52,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (1/1) ... [2024-10-11 02:37:52,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (1/1) ... [2024-10-11 02:37:52,466 INFO L138 Inliner]: procedures = 96, calls = 359, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 965 [2024-10-11 02:37:52,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 02:37:52,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 02:37:52,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 02:37:52,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 02:37:52,476 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (1/1) ... [2024-10-11 02:37:52,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (1/1) ... [2024-10-11 02:37:52,481 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (1/1) ... [2024-10-11 02:37:52,520 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]. [2024-10-11 02:37:52,521 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (1/1) ... [2024-10-11 02:37:52,521 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (1/1) ... [2024-10-11 02:37:52,546 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (1/1) ... [2024-10-11 02:37:52,554 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (1/1) ... [2024-10-11 02:37:52,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (1/1) ... [2024-10-11 02:37:52,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (1/1) ... [2024-10-11 02:37:52,569 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 02:37:52,570 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 02:37:52,570 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 02:37:52,570 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 02:37:52,571 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (1/1) ... [2024-10-11 02:37:52,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:37:52,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:37:52,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 02:37:52,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 02:37:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 02:37:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-10-11 02:37:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-10-11 02:37:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-10-11 02:37:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-10-11 02:37:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-10-11 02:37:52,655 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-10-11 02:37:52,655 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-10-11 02:37:52,656 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-10-11 02:37:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-10-11 02:37:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-10-11 02:37:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-10-11 02:37:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-10-11 02:37:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-10-11 02:37:52,657 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-10-11 02:37:52,657 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-10-11 02:37:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-10-11 02:37:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 02:37:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 02:37:52,658 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 02:37:52,658 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 02:37:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-10-11 02:37:52,659 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-10-11 02:37:52,659 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-10-11 02:37:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-10-11 02:37:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-10-11 02:37:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-10-11 02:37:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-10-11 02:37:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-10-11 02:37:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-10-11 02:37:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-10-11 02:37:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2024-10-11 02:37:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2024-10-11 02:37:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-10-11 02:37:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-10-11 02:37:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2024-10-11 02:37:52,660 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2024-10-11 02:37:52,660 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-10-11 02:37:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-10-11 02:37:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-10-11 02:37:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-10-11 02:37:52,661 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-11 02:37:52,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-11 02:37:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-11 02:37:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-11 02:37:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-11 02:37:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-11 02:37:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-11 02:37:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-11 02:37:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-11 02:37:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-11 02:37:52,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-11 02:37:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-11 02:37:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-10-11 02:37:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-10-11 02:37:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-10-11 02:37:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-10-11 02:37:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-10-11 02:37:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-10-11 02:37:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-10-11 02:37:52,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-10-11 02:37:52,663 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-10-11 02:37:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-10-11 02:37:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 02:37:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 02:37:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-10-11 02:37:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-10-11 02:37:52,664 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-10-11 02:37:52,664 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-10-11 02:37:52,819 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 02:37:52,821 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 02:37:53,864 INFO L? ?]: Removed 485 outVars from TransFormulas that were not future-live. [2024-10-11 02:37:53,864 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 02:37:53,952 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 02:37:53,953 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 02:37:53,953 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:37:53 BoogieIcfgContainer [2024-10-11 02:37:53,953 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 02:37:53,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 02:37:53,956 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 02:37:53,958 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 02:37:53,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:37:51" (1/3) ... [2024-10-11 02:37:53,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57205a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:37:53, skipping insertion in model container [2024-10-11 02:37:53,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:37:52" (2/3) ... [2024-10-11 02:37:53,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57205a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:37:53, skipping insertion in model container [2024-10-11 02:37:53,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:37:53" (3/3) ... [2024-10-11 02:37:53,961 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product24.cil.c [2024-10-11 02:37:53,975 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 02:37:53,975 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 02:37:54,066 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 02:37:54,073 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;@77d6dd4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 02:37:54,073 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 02:37:54,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 597 states, 451 states have (on average 1.6917960088691797) internal successors, (763), 471 states have internal predecessors, (763), 115 states have call successors, (115), 29 states have call predecessors, (115), 29 states have return successors, (115), 111 states have call predecessors, (115), 115 states have call successors, (115) [2024-10-11 02:37:54,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-10-11 02:37:54,090 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:37:54,090 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:37:54,091 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:37:54,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:37:54,094 INFO L85 PathProgramCache]: Analyzing trace with hash -221937079, now seen corresponding path program 1 times [2024-10-11 02:37:54,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:37:54,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334035074] [2024-10-11 02:37:54,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:37:54,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:37:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:37:55,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:37:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:37:55,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:37:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:37:55,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:37:55,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:37:55,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:37:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:37:55,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:37:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:37:55,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-11 02:37:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:37:55,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 02:37:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:37:55,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-10-11 02:37:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:37:55,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:37:55,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:37:55,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334035074] [2024-10-11 02:37:55,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334035074] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:37:55,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:37:55,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:37:55,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053829642] [2024-10-11 02:37:55,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:37:55,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:37:55,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:37:55,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:37:55,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:37:55,447 INFO L87 Difference]: Start difference. First operand has 597 states, 451 states have (on average 1.6917960088691797) internal successors, (763), 471 states have internal predecessors, (763), 115 states have call successors, (115), 29 states have call predecessors, (115), 29 states have return successors, (115), 111 states have call predecessors, (115), 115 states have call successors, (115) Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:01,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:38:01,845 INFO L93 Difference]: Finished difference Result 1460 states and 2525 transitions. [2024-10-11 02:38:01,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 02:38:01,848 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 56 [2024-10-11 02:38:01,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:38:01,866 INFO L225 Difference]: With dead ends: 1460 [2024-10-11 02:38:01,867 INFO L226 Difference]: Without dead ends: 864 [2024-10-11 02:38:01,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:38:01,880 INFO L432 NwaCegarLoop]: 449 mSDtfsCounter, 913 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 5436 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 2676 SdHoareTripleChecker+Invalid, 5629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 5436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-10-11 02:38:01,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1029 Valid, 2676 Invalid, 5629 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [193 Valid, 5436 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-10-11 02:38:01,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-10-11 02:38:02,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 603. [2024-10-11 02:38:02,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 457 states have (on average 1.6783369803063457) internal successors, (767), 477 states have internal predecessors, (767), 116 states have call successors, (116), 29 states have call predecessors, (116), 29 states have return successors, (115), 110 states have call predecessors, (115), 113 states have call successors, (115) [2024-10-11 02:38:02,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 998 transitions. [2024-10-11 02:38:02,075 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 998 transitions. Word has length 56 [2024-10-11 02:38:02,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:38:02,076 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 998 transitions. [2024-10-11 02:38:02,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 6 states have internal predecessors, (37), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:02,076 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 998 transitions. [2024-10-11 02:38:02,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 02:38:02,080 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:38:02,081 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:38:02,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 02:38:02,081 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:38:02,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:38:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1826531325, now seen corresponding path program 1 times [2024-10-11 02:38:02,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:38:02,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222486924] [2024-10-11 02:38:02,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:02,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:38:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:02,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:38:02,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:02,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:02,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:38:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:02,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:02,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:38:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:02,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 02:38:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:02,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 02:38:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:02,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 02:38:02,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:02,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:38:02,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:38:02,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222486924] [2024-10-11 02:38:02,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222486924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:38:02,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:38:02,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:38:02,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708446838] [2024-10-11 02:38:02,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:38:02,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:38:02,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:38:02,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:38:02,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:38:02,611 INFO L87 Difference]: Start difference. First operand 603 states and 998 transitions. Second operand has 9 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:07,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:38:07,748 INFO L93 Difference]: Finished difference Result 1457 states and 2492 transitions. [2024-10-11 02:38:07,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 02:38:07,748 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 57 [2024-10-11 02:38:07,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:38:07,756 INFO L225 Difference]: With dead ends: 1457 [2024-10-11 02:38:07,757 INFO L226 Difference]: Without dead ends: 864 [2024-10-11 02:38:07,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:38:07,761 INFO L432 NwaCegarLoop]: 364 mSDtfsCounter, 874 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 5313 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 5515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 5313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:38:07,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [990 Valid, 2168 Invalid, 5515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 5313 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-11 02:38:07,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-10-11 02:38:07,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 603. [2024-10-11 02:38:07,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 457 states have (on average 1.676148796498906) internal successors, (766), 477 states have internal predecessors, (766), 116 states have call successors, (116), 29 states have call predecessors, (116), 29 states have return successors, (115), 110 states have call predecessors, (115), 113 states have call successors, (115) [2024-10-11 02:38:07,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 997 transitions. [2024-10-11 02:38:07,839 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 997 transitions. Word has length 57 [2024-10-11 02:38:07,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:38:07,839 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 997 transitions. [2024-10-11 02:38:07,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.75) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:07,839 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 997 transitions. [2024-10-11 02:38:07,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-10-11 02:38:07,841 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:38:07,841 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:38:07,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 02:38:07,841 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:38:07,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:38:07,842 INFO L85 PathProgramCache]: Analyzing trace with hash 119453093, now seen corresponding path program 1 times [2024-10-11 02:38:07,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:38:07,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353663164] [2024-10-11 02:38:07,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:07,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:38:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:08,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:38:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:08,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:08,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:08,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:38:08,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:08,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:08,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-11 02:38:08,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:08,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 02:38:08,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:08,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 02:38:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:08,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 02:38:08,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:08,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:38:08,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:38:08,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353663164] [2024-10-11 02:38:08,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353663164] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:38:08,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:38:08,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:38:08,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013499696] [2024-10-11 02:38:08,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:38:08,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:38:08,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:38:08,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:38:08,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:38:08,274 INFO L87 Difference]: Start difference. First operand 603 states and 997 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:38:12,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:38:12,123 INFO L93 Difference]: Finished difference Result 1451 states and 2475 transitions. [2024-10-11 02:38:12,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 02:38:12,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2024-10-11 02:38:12,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:38:12,130 INFO L225 Difference]: With dead ends: 1451 [2024-10-11 02:38:12,130 INFO L226 Difference]: Without dead ends: 829 [2024-10-11 02:38:12,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:38:12,133 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 825 mSDsluCounter, 917 mSDsCounter, 0 mSdLazyCounter, 2885 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 1327 SdHoareTripleChecker+Invalid, 3078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 2885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-11 02:38:12,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 1327 Invalid, 3078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 2885 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-11 02:38:12,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 829 states. [2024-10-11 02:38:12,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 829 to 580. [2024-10-11 02:38:12,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 437 states have (on average 1.665903890160183) internal successors, (728), 455 states have internal predecessors, (728), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-11 02:38:12,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 955 transitions. [2024-10-11 02:38:12,205 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 955 transitions. Word has length 57 [2024-10-11 02:38:12,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:38:12,205 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 955 transitions. [2024-10-11 02:38:12,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:38:12,205 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 955 transitions. [2024-10-11 02:38:12,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-11 02:38:12,207 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:38:12,207 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:38:12,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 02:38:12,208 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:38:12,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:38:12,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1335546691, now seen corresponding path program 1 times [2024-10-11 02:38:12,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:38:12,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710306267] [2024-10-11 02:38:12,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:12,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:38:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:12,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:38:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:12,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:12,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:38:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:12,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:12,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:38:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:12,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-11 02:38:12,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:12,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:38:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:12,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 02:38:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:38:12,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:38:12,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710306267] [2024-10-11 02:38:12,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710306267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:38:12,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:38:12,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:38:12,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977781214] [2024-10-11 02:38:12,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:38:12,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:38:12,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:38:12,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:38:12,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:38:12,709 INFO L87 Difference]: Start difference. First operand 580 states and 955 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:17,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:38:17,494 INFO L93 Difference]: Finished difference Result 1415 states and 2407 transitions. [2024-10-11 02:38:17,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 02:38:17,495 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 58 [2024-10-11 02:38:17,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:38:17,500 INFO L225 Difference]: With dead ends: 1415 [2024-10-11 02:38:17,500 INFO L226 Difference]: Without dead ends: 823 [2024-10-11 02:38:17,503 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:38:17,503 INFO L432 NwaCegarLoop]: 368 mSDtfsCounter, 868 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2186 SdHoareTripleChecker+Invalid, 5355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-11 02:38:17,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 2186 Invalid, 5355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-11 02:38:17,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-10-11 02:38:17,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 574. [2024-10-11 02:38:17,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 431 states have (on average 1.6589327146171693) internal successors, (715), 449 states have internal predecessors, (715), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-11 02:38:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 942 transitions. [2024-10-11 02:38:17,593 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 942 transitions. Word has length 58 [2024-10-11 02:38:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:38:17,593 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 942 transitions. [2024-10-11 02:38:17,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 942 transitions. [2024-10-11 02:38:17,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-11 02:38:17,595 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:38:17,595 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:38:17,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 02:38:17,596 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:38:17,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:38:17,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1824274971, now seen corresponding path program 1 times [2024-10-11 02:38:17,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:38:17,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966522267] [2024-10-11 02:38:17,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:17,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:38:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:17,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:38:17,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:17,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:17,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:17,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:38:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:17,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:17,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:17,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:38:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:17,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-11 02:38:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:17,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 02:38:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:17,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 02:38:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:18,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:38:18,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:38:18,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966522267] [2024-10-11 02:38:18,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966522267] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:38:18,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:38:18,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:38:18,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814295176] [2024-10-11 02:38:18,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:38:18,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:38:18,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:38:18,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:38:18,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:38:18,003 INFO L87 Difference]: Start difference. First operand 574 states and 942 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:38:21,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:38:21,717 INFO L93 Difference]: Finished difference Result 1387 states and 2358 transitions. [2024-10-11 02:38:21,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:38:21,718 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2024-10-11 02:38:21,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:38:21,723 INFO L225 Difference]: With dead ends: 1387 [2024-10-11 02:38:21,723 INFO L226 Difference]: Without dead ends: 823 [2024-10-11 02:38:21,725 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:38:21,726 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 1404 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 2593 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1519 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 3014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 2593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:38:21,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1519 Valid, 1247 Invalid, 3014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 2593 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-11 02:38:21,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-10-11 02:38:21,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 574. [2024-10-11 02:38:21,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 431 states have (on average 1.6566125290023201) internal successors, (714), 449 states have internal predecessors, (714), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-11 02:38:21,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 941 transitions. [2024-10-11 02:38:21,796 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 941 transitions. Word has length 59 [2024-10-11 02:38:21,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:38:21,796 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 941 transitions. [2024-10-11 02:38:21,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:38:21,796 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 941 transitions. [2024-10-11 02:38:21,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-11 02:38:21,797 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:38:21,797 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:38:21,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 02:38:21,797 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:38:21,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:38:21,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1002791488, now seen corresponding path program 1 times [2024-10-11 02:38:21,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:38:21,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149473072] [2024-10-11 02:38:21,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:21,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:38:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:22,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:38:22,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:22,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:22,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:22,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:38:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:22,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:22,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:38:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:22,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-11 02:38:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:22,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 02:38:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:22,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-11 02:38:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:22,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:38:22,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:38:22,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149473072] [2024-10-11 02:38:22,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149473072] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:38:22,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:38:22,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:38:22,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680085261] [2024-10-11 02:38:22,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:38:22,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:38:22,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:38:22,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:38:22,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:38:22,245 INFO L87 Difference]: Start difference. First operand 574 states and 941 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:27,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:38:27,000 INFO L93 Difference]: Finished difference Result 1403 states and 2376 transitions. [2024-10-11 02:38:27,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 02:38:27,001 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 60 [2024-10-11 02:38:27,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:38:27,005 INFO L225 Difference]: With dead ends: 1403 [2024-10-11 02:38:27,005 INFO L226 Difference]: Without dead ends: 817 [2024-10-11 02:38:27,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:38:27,013 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 845 mSDsluCounter, 2000 mSDsCounter, 0 mSdLazyCounter, 5109 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 2405 SdHoareTripleChecker+Invalid, 5305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 5109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-11 02:38:27,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 2405 Invalid, 5305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 5109 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-11 02:38:27,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2024-10-11 02:38:27,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 568. [2024-10-11 02:38:27,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 425 states have (on average 1.6494117647058824) internal successors, (701), 443 states have internal predecessors, (701), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-11 02:38:27,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 928 transitions. [2024-10-11 02:38:27,104 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 928 transitions. Word has length 60 [2024-10-11 02:38:27,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:38:27,105 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 928 transitions. [2024-10-11 02:38:27,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 6 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 928 transitions. [2024-10-11 02:38:27,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-11 02:38:27,106 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:38:27,106 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:38:27,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 02:38:27,107 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:38:27,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:38:27,107 INFO L85 PathProgramCache]: Analyzing trace with hash -299067782, now seen corresponding path program 1 times [2024-10-11 02:38:27,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:38:27,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854539710] [2024-10-11 02:38:27,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:27,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:38:27,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:27,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:38:27,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:27,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:27,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:38:27,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:27,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:27,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:38:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:27,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 02:38:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:27,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-11 02:38:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:27,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-10-11 02:38:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:27,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:38:27,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:38:27,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854539710] [2024-10-11 02:38:27,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854539710] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:38:27,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:38:27,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:38:27,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177675237] [2024-10-11 02:38:27,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:38:27,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:38:27,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:38:27,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:38:27,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:38:27,494 INFO L87 Difference]: Start difference. First operand 568 states and 928 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:38:31,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:38:31,093 INFO L93 Difference]: Finished difference Result 1375 states and 2329 transitions. [2024-10-11 02:38:31,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 02:38:31,094 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 61 [2024-10-11 02:38:31,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:38:31,099 INFO L225 Difference]: With dead ends: 1375 [2024-10-11 02:38:31,099 INFO L226 Difference]: Without dead ends: 817 [2024-10-11 02:38:31,101 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:38:31,102 INFO L432 NwaCegarLoop]: 398 mSDtfsCounter, 807 mSDsluCounter, 888 mSDsCounter, 0 mSdLazyCounter, 2689 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 2882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 2689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-11 02:38:31,102 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1286 Invalid, 2882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 2689 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-11 02:38:31,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2024-10-11 02:38:31,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 568. [2024-10-11 02:38:31,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 425 states have (on average 1.6470588235294117) internal successors, (700), 443 states have internal predecessors, (700), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-11 02:38:31,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 927 transitions. [2024-10-11 02:38:31,199 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 927 transitions. Word has length 61 [2024-10-11 02:38:31,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:38:31,201 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 927 transitions. [2024-10-11 02:38:31,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-10-11 02:38:31,202 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 927 transitions. [2024-10-11 02:38:31,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 02:38:31,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:38:31,202 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:38:31,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 02:38:31,203 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:38:31,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:38:31,203 INFO L85 PathProgramCache]: Analyzing trace with hash 436168284, now seen corresponding path program 1 times [2024-10-11 02:38:31,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:38:31,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471964928] [2024-10-11 02:38:31,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:31,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:38:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:31,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:38:31,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:31,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:31,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:38:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:31,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:31,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:31,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:38:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:31,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:38:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:31,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 02:38:31,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:31,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:38:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:31,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:38:31,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:38:31,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471964928] [2024-10-11 02:38:31,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471964928] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:38:31,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:38:31,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:38:31,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832878582] [2024-10-11 02:38:31,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:38:31,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:38:31,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:38:31,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:38:31,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:38:31,621 INFO L87 Difference]: Start difference. First operand 568 states and 927 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:36,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:38:36,225 INFO L93 Difference]: Finished difference Result 1391 states and 2345 transitions. [2024-10-11 02:38:36,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-11 02:38:36,225 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2024-10-11 02:38:36,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:38:36,229 INFO L225 Difference]: With dead ends: 1391 [2024-10-11 02:38:36,230 INFO L226 Difference]: Without dead ends: 811 [2024-10-11 02:38:36,231 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2024-10-11 02:38:36,232 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 822 mSDsluCounter, 2019 mSDsCounter, 0 mSdLazyCounter, 4983 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 2428 SdHoareTripleChecker+Invalid, 5179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 4983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-11 02:38:36,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 2428 Invalid, 5179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 4983 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-10-11 02:38:36,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-10-11 02:38:36,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 562. [2024-10-11 02:38:36,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 419 states have (on average 1.639618138424821) internal successors, (687), 437 states have internal predecessors, (687), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-11 02:38:36,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 914 transitions. [2024-10-11 02:38:36,305 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 914 transitions. Word has length 62 [2024-10-11 02:38:36,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:38:36,305 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 914 transitions. [2024-10-11 02:38:36,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:36,306 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 914 transitions. [2024-10-11 02:38:36,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-10-11 02:38:36,307 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:38:36,307 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:38:36,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 02:38:36,307 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:38:36,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:38:36,308 INFO L85 PathProgramCache]: Analyzing trace with hash 656093661, now seen corresponding path program 1 times [2024-10-11 02:38:36,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:38:36,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071046774] [2024-10-11 02:38:36,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:36,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:38:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:36,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:38:36,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:36,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:36,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:38:36,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:36,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:36,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:36,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:38:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:36,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-11 02:38:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:36,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 02:38:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:36,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-10-11 02:38:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:36,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:38:36,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:38:36,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071046774] [2024-10-11 02:38:36,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071046774] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:38:36,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:38:36,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:38:36,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071199748] [2024-10-11 02:38:36,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:38:36,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:38:36,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:38:36,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:38:36,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:38:36,741 INFO L87 Difference]: Start difference. First operand 562 states and 914 transitions. Second operand has 9 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:41,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:38:41,122 INFO L93 Difference]: Finished difference Result 1363 states and 2300 transitions. [2024-10-11 02:38:41,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 02:38:41,122 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 62 [2024-10-11 02:38:41,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:38:41,127 INFO L225 Difference]: With dead ends: 1363 [2024-10-11 02:38:41,127 INFO L226 Difference]: Without dead ends: 811 [2024-10-11 02:38:41,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:38:41,129 INFO L432 NwaCegarLoop]: 433 mSDtfsCounter, 1355 mSDsluCounter, 2087 mSDsCounter, 0 mSdLazyCounter, 4809 mSolverCounterSat, 412 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 2520 SdHoareTripleChecker+Invalid, 5221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 412 IncrementalHoareTripleChecker+Valid, 4809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-10-11 02:38:41,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1470 Valid, 2520 Invalid, 5221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [412 Valid, 4809 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-10-11 02:38:41,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-10-11 02:38:41,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 562. [2024-10-11 02:38:41,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 419 states have (on average 1.6372315035799523) internal successors, (686), 437 states have internal predecessors, (686), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-11 02:38:41,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 913 transitions. [2024-10-11 02:38:41,206 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 913 transitions. Word has length 62 [2024-10-11 02:38:41,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:38:41,206 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 913 transitions. [2024-10-11 02:38:41,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.375) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:41,206 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 913 transitions. [2024-10-11 02:38:41,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 02:38:41,207 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:38:41,207 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:38:41,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 02:38:41,207 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:38:41,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:38:41,208 INFO L85 PathProgramCache]: Analyzing trace with hash 813894644, now seen corresponding path program 1 times [2024-10-11 02:38:41,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:38:41,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328544109] [2024-10-11 02:38:41,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:41,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:38:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:41,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:38:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:41,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:41,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:38:41,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:41,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:41,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:38:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:41,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 02:38:41,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:41,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 02:38:41,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:41,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:38:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:38:41,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:38:41,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328544109] [2024-10-11 02:38:41,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328544109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:38:41,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:38:41,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:38:41,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831445410] [2024-10-11 02:38:41,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:38:41,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:38:41,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:38:41,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:38:41,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:38:41,667 INFO L87 Difference]: Start difference. First operand 562 states and 913 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:46,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:38:46,382 INFO L93 Difference]: Finished difference Result 1369 states and 2304 transitions. [2024-10-11 02:38:46,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 02:38:46,382 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2024-10-11 02:38:46,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:38:46,387 INFO L225 Difference]: With dead ends: 1369 [2024-10-11 02:38:46,387 INFO L226 Difference]: Without dead ends: 817 [2024-10-11 02:38:46,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:38:46,389 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 780 mSDsluCounter, 1985 mSDsCounter, 0 mSdLazyCounter, 4913 mSolverCounterSat, 196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 5109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 196 IncrementalHoareTripleChecker+Valid, 4913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-10-11 02:38:46,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 2386 Invalid, 5109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [196 Valid, 4913 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-10-11 02:38:46,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2024-10-11 02:38:46,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 568. [2024-10-11 02:38:46,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 425 states have (on average 1.628235294117647) internal successors, (692), 443 states have internal predecessors, (692), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-11 02:38:46,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 919 transitions. [2024-10-11 02:38:46,484 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 919 transitions. Word has length 63 [2024-10-11 02:38:46,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:38:46,484 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 919 transitions. [2024-10-11 02:38:46,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:46,485 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 919 transitions. [2024-10-11 02:38:46,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-11 02:38:46,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:38:46,485 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:38:46,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 02:38:46,486 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:38:46,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:38:46,486 INFO L85 PathProgramCache]: Analyzing trace with hash -1430088654, now seen corresponding path program 1 times [2024-10-11 02:38:46,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:38:46,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244163038] [2024-10-11 02:38:46,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:46,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:38:46,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:46,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:38:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:46,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:46,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:46,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:38:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:46,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:46,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:46,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:38:46,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:46,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 02:38:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:46,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-11 02:38:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:46,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 02:38:46,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:38:46,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:38:46,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244163038] [2024-10-11 02:38:46,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244163038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:38:46,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:38:46,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-11 02:38:46,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795081375] [2024-10-11 02:38:46,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:38:46,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-11 02:38:46,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:38:46,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-11 02:38:46,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:38:46,930 INFO L87 Difference]: Start difference. First operand 568 states and 919 transitions. Second operand has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:51,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:38:51,606 INFO L93 Difference]: Finished difference Result 1377 states and 2310 transitions. [2024-10-11 02:38:51,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 02:38:51,606 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 63 [2024-10-11 02:38:51,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:38:51,611 INFO L225 Difference]: With dead ends: 1377 [2024-10-11 02:38:51,611 INFO L226 Difference]: Without dead ends: 811 [2024-10-11 02:38:51,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-10-11 02:38:51,613 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 1363 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 4831 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 5230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 4831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-10-11 02:38:51,613 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 2571 Invalid, 5230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 4831 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-10-11 02:38:51,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2024-10-11 02:38:51,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 562. [2024-10-11 02:38:51,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 419 states have (on average 1.6348448687350836) internal successors, (685), 437 states have internal predecessors, (685), 115 states have call successors, (115), 29 states have call predecessors, (115), 27 states have return successors, (112), 109 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-11 02:38:51,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 912 transitions. [2024-10-11 02:38:51,693 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 912 transitions. Word has length 63 [2024-10-11 02:38:51,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:38:51,693 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 912 transitions. [2024-10-11 02:38:51,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.5) internal successors, (44), 6 states have internal predecessors, (44), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:38:51,693 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 912 transitions. [2024-10-11 02:38:51,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 02:38:51,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:38:51,694 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:38:51,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 02:38:51,694 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:38:51,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:38:51,695 INFO L85 PathProgramCache]: Analyzing trace with hash -766382025, now seen corresponding path program 1 times [2024-10-11 02:38:51,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:38:51,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993923893] [2024-10-11 02:38:51,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:51,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:38:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:51,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:38:51,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:52,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:52,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:38:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:52,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:52,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:52,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:38:52,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:52,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 02:38:52,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:52,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 02:38:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:52,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:38:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:38:52,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:38:52,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993923893] [2024-10-11 02:38:52,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993923893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:38:52,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:38:52,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 02:38:52,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779160141] [2024-10-11 02:38:52,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:38:52,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:38:52,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:38:52,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:38:52,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:38:52,100 INFO L87 Difference]: Start difference. First operand 562 states and 912 transitions. Second operand has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-11 02:38:59,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:38:59,340 INFO L93 Difference]: Finished difference Result 2105 states and 3593 transitions. [2024-10-11 02:38:59,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 02:38:59,340 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) Word has length 64 [2024-10-11 02:38:59,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:38:59,349 INFO L225 Difference]: With dead ends: 2105 [2024-10-11 02:38:59,349 INFO L226 Difference]: Without dead ends: 1555 [2024-10-11 02:38:59,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:38:59,352 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 2071 mSDsluCounter, 1791 mSDsCounter, 0 mSdLazyCounter, 4800 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2219 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 5447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 4800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:38:59,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2219 Valid, 2263 Invalid, 5447 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [647 Valid, 4800 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-10-11 02:38:59,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2024-10-11 02:38:59,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1210. [2024-10-11 02:38:59,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1210 states, 864 states have (on average 1.5821759259259258) internal successors, (1367), 918 states have internal predecessors, (1367), 287 states have call successors, (287), 55 states have call predecessors, (287), 58 states have return successors, (365), 279 states have call predecessors, (365), 283 states have call successors, (365) [2024-10-11 02:38:59,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 2019 transitions. [2024-10-11 02:38:59,585 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 2019 transitions. Word has length 64 [2024-10-11 02:38:59,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:38:59,586 INFO L471 AbstractCegarLoop]: Abstraction has 1210 states and 2019 transitions. [2024-10-11 02:38:59,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.428571428571429) internal successors, (45), 5 states have internal predecessors, (45), 4 states have call successors, (10), 5 states have call predecessors, (10), 3 states have return successors, (8), 5 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-11 02:38:59,586 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 2019 transitions. [2024-10-11 02:38:59,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-11 02:38:59,586 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:38:59,586 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:38:59,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 02:38:59,587 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:38:59,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:38:59,587 INFO L85 PathProgramCache]: Analyzing trace with hash -2020797129, now seen corresponding path program 1 times [2024-10-11 02:38:59,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:38:59,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231053930] [2024-10-11 02:38:59,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:59,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:38:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:59,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:38:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:59,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:59,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:38:59,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:59,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:38:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:59,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:38:59,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:59,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 02:38:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:59,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 02:38:59,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:59,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-11 02:38:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:38:59,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 02:38:59,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:38:59,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231053930] [2024-10-11 02:38:59,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231053930] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:38:59,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030152270] [2024-10-11 02:38:59,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:38:59,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:38:59,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:38:59,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:38:59,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 02:39:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:00,192 INFO L255 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 02:39:00,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:39:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:39:00,245 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:39:00,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030152270] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:39:00,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:39:00,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-11 02:39:00,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492354904] [2024-10-11 02:39:00,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:39:00,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:39:00,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:39:00,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:39:00,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:39:00,246 INFO L87 Difference]: Start difference. First operand 1210 states and 2019 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:39:00,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:39:00,739 INFO L93 Difference]: Finished difference Result 3514 states and 5947 transitions. [2024-10-11 02:39:00,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:39:00,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 64 [2024-10-11 02:39:00,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:39:00,751 INFO L225 Difference]: With dead ends: 3514 [2024-10-11 02:39:00,751 INFO L226 Difference]: Without dead ends: 2316 [2024-10-11 02:39:00,755 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:39:00,756 INFO L432 NwaCegarLoop]: 1586 mSDtfsCounter, 877 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:39:00,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 2385 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:39:00,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2024-10-11 02:39:01,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2258. [2024-10-11 02:39:01,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2258 states, 1615 states have (on average 1.5944272445820433) internal successors, (2575), 1723 states have internal predecessors, (2575), 531 states have call successors, (531), 100 states have call predecessors, (531), 111 states have return successors, (700), 520 states have call predecessors, (700), 527 states have call successors, (700) [2024-10-11 02:39:01,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2258 states to 2258 states and 3806 transitions. [2024-10-11 02:39:01,201 INFO L78 Accepts]: Start accepts. Automaton has 2258 states and 3806 transitions. Word has length 64 [2024-10-11 02:39:01,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:39:01,201 INFO L471 AbstractCegarLoop]: Abstraction has 2258 states and 3806 transitions. [2024-10-11 02:39:01,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:39:01,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2258 states and 3806 transitions. [2024-10-11 02:39:01,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 02:39:01,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:39:01,202 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:39:01,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 02:39:01,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 02:39:01,403 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:39:01,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:39:01,403 INFO L85 PathProgramCache]: Analyzing trace with hash 2097190565, now seen corresponding path program 1 times [2024-10-11 02:39:01,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:39:01,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698065822] [2024-10-11 02:39:01,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:39:01,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:39:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:01,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:39:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:01,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:39:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:01,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:39:01,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:01,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:39:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:01,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:39:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:01,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 02:39:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:01,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 02:39:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:01,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 02:39:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:01,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 02:39:01,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:39:01,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698065822] [2024-10-11 02:39:01,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698065822] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 02:39:01,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815892482] [2024-10-11 02:39:01,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:39:01,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:39:01,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:39:01,817 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 02:39:01,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 02:39:02,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:02,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 1474 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 02:39:02,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 02:39:02,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:39:02,075 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 02:39:02,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815892482] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:39:02,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 02:39:02,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-10-11 02:39:02,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082437674] [2024-10-11 02:39:02,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:39:02,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:39:02,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:39:02,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:39:02,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:39:02,077 INFO L87 Difference]: Start difference. First operand 2258 states and 3806 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:39:02,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:39:02,680 INFO L93 Difference]: Finished difference Result 5152 states and 8766 transitions. [2024-10-11 02:39:02,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:39:02,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 65 [2024-10-11 02:39:02,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:39:02,699 INFO L225 Difference]: With dead ends: 5152 [2024-10-11 02:39:02,699 INFO L226 Difference]: Without dead ends: 2906 [2024-10-11 02:39:02,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:39:02,710 INFO L432 NwaCegarLoop]: 1027 mSDtfsCounter, 875 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 875 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:39:02,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [875 Valid, 1824 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:39:02,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2024-10-11 02:39:03,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2703. [2024-10-11 02:39:03,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2703 states, 1953 states have (on average 1.6067588325652842) internal successors, (3138), 2078 states have internal predecessors, (3138), 616 states have call successors, (616), 121 states have call predecessors, (616), 133 states have return successors, (789), 603 states have call predecessors, (789), 612 states have call successors, (789) [2024-10-11 02:39:03,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2703 states to 2703 states and 4543 transitions. [2024-10-11 02:39:03,242 INFO L78 Accepts]: Start accepts. Automaton has 2703 states and 4543 transitions. Word has length 65 [2024-10-11 02:39:03,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:39:03,243 INFO L471 AbstractCegarLoop]: Abstraction has 2703 states and 4543 transitions. [2024-10-11 02:39:03,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-10-11 02:39:03,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2703 states and 4543 transitions. [2024-10-11 02:39:03,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-11 02:39:03,244 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:39:03,244 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:39:03,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 02:39:03,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 02:39:03,445 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:39:03,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:39:03,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1869032740, now seen corresponding path program 1 times [2024-10-11 02:39:03,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:39:03,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252495438] [2024-10-11 02:39:03,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:39:03,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:39:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:03,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:39:03,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:03,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:39:03,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:03,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:39:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:03,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:39:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:03,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:39:03,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:03,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 02:39:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:03,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 02:39:03,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:03,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 02:39:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:03,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-11 02:39:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:03,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:39:03,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:39:03,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252495438] [2024-10-11 02:39:03,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252495438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:39:03,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:39:03,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-11 02:39:03,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125868587] [2024-10-11 02:39:03,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:39:03,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 02:39:03,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:39:03,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 02:39:03,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-11 02:39:03,860 INFO L87 Difference]: Start difference. First operand 2703 states and 4543 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-11 02:39:12,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:39:12,221 INFO L93 Difference]: Finished difference Result 9530 states and 16797 transitions. [2024-10-11 02:39:12,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 02:39:12,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 67 [2024-10-11 02:39:12,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:39:12,261 INFO L225 Difference]: With dead ends: 9530 [2024-10-11 02:39:12,264 INFO L226 Difference]: Without dead ends: 6839 [2024-10-11 02:39:12,282 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2024-10-11 02:39:12,282 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 3448 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 4623 mSolverCounterSat, 1076 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3593 SdHoareTripleChecker+Valid, 1976 SdHoareTripleChecker+Invalid, 5699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1076 IncrementalHoareTripleChecker+Valid, 4623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-10-11 02:39:12,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3593 Valid, 1976 Invalid, 5699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1076 Valid, 4623 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-10-11 02:39:12,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2024-10-11 02:39:13,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 5948. [2024-10-11 02:39:13,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5948 states, 4162 states have (on average 1.5836136472849591) internal successors, (6591), 4507 states have internal predecessors, (6591), 1472 states have call successors, (1472), 236 states have call predecessors, (1472), 313 states have return successors, (2386), 1470 states have call predecessors, (2386), 1466 states have call successors, (2386) [2024-10-11 02:39:13,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5948 states to 5948 states and 10449 transitions. [2024-10-11 02:39:13,791 INFO L78 Accepts]: Start accepts. Automaton has 5948 states and 10449 transitions. Word has length 67 [2024-10-11 02:39:13,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:39:13,791 INFO L471 AbstractCegarLoop]: Abstraction has 5948 states and 10449 transitions. [2024-10-11 02:39:13,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2024-10-11 02:39:13,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5948 states and 10449 transitions. [2024-10-11 02:39:13,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-10-11 02:39:13,792 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:39:13,793 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:39:13,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-11 02:39:13,793 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:39:13,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:39:13,793 INFO L85 PathProgramCache]: Analyzing trace with hash -908117149, now seen corresponding path program 1 times [2024-10-11 02:39:13,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:39:13,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232501761] [2024-10-11 02:39:13,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:39:13,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:39:13,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:14,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 02:39:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:14,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:39:14,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:14,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:39:14,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:14,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 02:39:14,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:14,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 02:39:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:14,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-11 02:39:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:14,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-11 02:39:14,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:14,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-11 02:39:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:14,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-11 02:39:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:39:14,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-11 02:39:14,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:39:14,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232501761] [2024-10-11 02:39:14,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232501761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:39:14,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:39:14,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 02:39:14,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218295882] [2024-10-11 02:39:14,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:39:14,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 02:39:14,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:39:14,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 02:39:14,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-11 02:39:14,153 INFO L87 Difference]: Start difference. First operand 5948 states and 10449 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 02:39:19,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:39:19,250 INFO L93 Difference]: Finished difference Result 12763 states and 22826 transitions. [2024-10-11 02:39:19,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 02:39:19,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2024-10-11 02:39:19,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:39:19,287 INFO L225 Difference]: With dead ends: 12763 [2024-10-11 02:39:19,287 INFO L226 Difference]: Without dead ends: 6827 [2024-10-11 02:39:19,309 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-10-11 02:39:19,309 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 1350 mSDsluCounter, 911 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 393 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1465 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 2941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 393 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-11 02:39:19,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1465 Valid, 1345 Invalid, 2941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [393 Valid, 2548 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-11 02:39:19,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6827 states. [2024-10-11 02:39:20,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6827 to 5956. [2024-10-11 02:39:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5956 states, 4168 states have (on average 1.5822936660268714) internal successors, (6595), 4513 states have internal predecessors, (6595), 1472 states have call successors, (1472), 240 states have call predecessors, (1472), 315 states have return successors, (2376), 1468 states have call predecessors, (2376), 1466 states have call successors, (2376) [2024-10-11 02:39:20,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5956 states to 5956 states and 10443 transitions. [2024-10-11 02:39:20,751 INFO L78 Accepts]: Start accepts. Automaton has 5956 states and 10443 transitions. Word has length 68 [2024-10-11 02:39:20,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:39:20,752 INFO L471 AbstractCegarLoop]: Abstraction has 5956 states and 10443 transitions. [2024-10-11 02:39:20,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-10-11 02:39:20,752 INFO L276 IsEmpty]: Start isEmpty. Operand 5956 states and 10443 transitions. [2024-10-11 02:39:20,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-11 02:39:20,752 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:39:20,753 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-11 02:39:20,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-11 02:39:20,753 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:39:20,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:39:20,753 INFO L85 PathProgramCache]: Analyzing trace with hash -129727987, now seen corresponding path program 1 times [2024-10-11 02:39:20,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:39:20,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548877690] [2024-10-11 02:39:20,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:39:20,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:39:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat