./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d9d31939acfea5ee9b43b1f06257671943c7251c27c351c5e445aa6495fd098 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 14:50:31,359 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 14:50:31,424 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 14:50:31,428 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 14:50:31,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 14:50:31,458 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 14:50:31,459 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 14:50:31,459 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 14:50:31,461 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 14:50:31,462 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 14:50:31,462 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 14:50:31,463 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 14:50:31,463 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 14:50:31,463 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 14:50:31,465 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 14:50:31,465 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 14:50:31,465 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 14:50:31,465 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 14:50:31,466 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 14:50:31,466 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 14:50:31,466 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 14:50:31,469 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 14:50:31,469 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 14:50:31,469 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 14:50:31,469 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 14:50:31,469 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 14:50:31,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 14:50:31,469 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 14:50:31,470 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 14:50:31,470 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 14:50:31,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 14:50:31,470 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 14:50:31,470 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:50:31,470 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 14:50:31,470 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 14:50:31,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 14:50:31,471 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 14:50:31,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 14:50:31,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 14:50:31,471 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 14:50:31,471 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 14:50:31,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 14:50:31,473 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d9d31939acfea5ee9b43b1f06257671943c7251c27c351c5e445aa6495fd098 [2024-11-08 14:50:31,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 14:50:31,690 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 14:50:31,693 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 14:50:31,694 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 14:50:31,695 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 14:50:31,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c [2024-11-08 14:50:32,948 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 14:50:33,194 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 14:50:33,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c [2024-11-08 14:50:33,219 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d2d9b7c9/6d03acd2b3654208afbcb58dc534b1e9/FLAGeea4b23d1 [2024-11-08 14:50:33,231 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d2d9b7c9/6d03acd2b3654208afbcb58dc534b1e9 [2024-11-08 14:50:33,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 14:50:33,234 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 14:50:33,235 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 14:50:33,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 14:50:33,240 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 14:50:33,241 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,242 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa618e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33, skipping insertion in model container [2024-11-08 14:50:33,242 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 14:50:33,592 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c[38051,38064] [2024-11-08 14:50:33,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:50:33,672 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 14:50:33,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2024-11-08 14:50:33,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [150] [2024-11-08 14:50:33,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [164] [2024-11-08 14:50:33,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [284] [2024-11-08 14:50:33,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [322] [2024-11-08 14:50:33,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1825] [2024-11-08 14:50:33,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1834] [2024-11-08 14:50:33,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2200] [2024-11-08 14:50:33,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [2552] [2024-11-08 14:50:33,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2733] [2024-11-08 14:50:33,711 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product18.cil.c[38051,38064] [2024-11-08 14:50:33,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:50:33,769 INFO L204 MainTranslator]: Completed translation [2024-11-08 14:50:33,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33 WrapperNode [2024-11-08 14:50:33,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 14:50:33,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 14:50:33,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 14:50:33,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 14:50:33,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,793 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,825 INFO L138 Inliner]: procedures = 92, calls = 338, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 816 [2024-11-08 14:50:33,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 14:50:33,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 14:50:33,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 14:50:33,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 14:50:33,836 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,841 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,867 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-08 14:50:33,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,868 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,888 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,895 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,900 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 14:50:33,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 14:50:33,905 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 14:50:33,905 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 14:50:33,906 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (1/1) ... [2024-11-08 14:50:33,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:50:33,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:50:33,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 14:50:33,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 14:50:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 14:50:33,986 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-08 14:50:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-08 14:50:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-08 14:50:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-08 14:50:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-08 14:50:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-08 14:50:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-08 14:50:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-08 14:50:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-08 14:50:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-08 14:50:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 14:50:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 14:50:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 14:50:33,988 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 14:50:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-08 14:50:33,989 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-08 14:50:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-08 14:50:33,990 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-08 14:50:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-08 14:50:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-08 14:50:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-08 14:50:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-08 14:50:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-08 14:50:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-08 14:50:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-08 14:50:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-08 14:50:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-08 14:50:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-08 14:50:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-08 14:50:33,991 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-08 14:50:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-08 14:50:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-08 14:50:33,992 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-08 14:50:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-08 14:50:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-08 14:50:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-08 14:50:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-08 14:50:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-08 14:50:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-08 14:50:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-08 14:50:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-08 14:50:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2024-11-08 14:50:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2024-11-08 14:50:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-08 14:50:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-08 14:50:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-08 14:50:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-08 14:50:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-08 14:50:33,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-08 14:50:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 14:50:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 14:50:33,994 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-08 14:50:33,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-08 14:50:34,149 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 14:50:34,151 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 14:50:34,952 INFO L? ?]: Removed 429 outVars from TransFormulas that were not future-live. [2024-11-08 14:50:34,952 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 14:50:34,975 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 14:50:34,976 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 14:50:34,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:50:34 BoogieIcfgContainer [2024-11-08 14:50:34,976 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 14:50:34,978 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 14:50:34,978 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 14:50:34,981 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 14:50:34,981 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:50:33" (1/3) ... [2024-11-08 14:50:34,981 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619f577e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:50:34, skipping insertion in model container [2024-11-08 14:50:34,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:50:33" (2/3) ... [2024-11-08 14:50:34,982 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619f577e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:50:34, skipping insertion in model container [2024-11-08 14:50:34,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:50:34" (3/3) ... [2024-11-08 14:50:34,983 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product18.cil.c [2024-11-08 14:50:34,996 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 14:50:34,996 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 14:50:35,063 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 14:50:35,070 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;@13840918, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 14:50:35,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 14:50:35,078 INFO L276 IsEmpty]: Start isEmpty. Operand has 541 states, 426 states have (on average 1.7065727699530517) internal successors, (727), 449 states have internal predecessors, (727), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 84 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-08 14:50:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 14:50:35,095 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:35,096 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:35,096 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:35,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:35,101 INFO L85 PathProgramCache]: Analyzing trace with hash -481021737, now seen corresponding path program 1 times [2024-11-08 14:50:35,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:35,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855664869] [2024-11-08 14:50:35,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:35,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:35,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:35,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:35,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:50:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:35,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 14:50:35,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:36,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:36,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:36,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:36,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:50:36,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:36,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855664869] [2024-11-08 14:50:36,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855664869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:36,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:36,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:50:36,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453354612] [2024-11-08 14:50:36,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:36,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:50:36,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:36,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:50:36,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:50:36,060 INFO L87 Difference]: Start difference. First operand has 541 states, 426 states have (on average 1.7065727699530517) internal successors, (727), 449 states have internal predecessors, (727), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 84 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:50:39,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:39,760 INFO L93 Difference]: Finished difference Result 1224 states and 2085 transitions. [2024-11-08 14:50:39,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 14:50:39,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2024-11-08 14:50:39,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:39,777 INFO L225 Difference]: With dead ends: 1224 [2024-11-08 14:50:39,778 INFO L226 Difference]: Without dead ends: 695 [2024-11-08 14:50:39,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:50:39,787 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 1090 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 2476 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 2724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 2476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:39,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 1181 Invalid, 2724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 2476 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 14:50:39,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-11-08 14:50:39,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 533. [2024-11-08 14:50:39,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 420 states have (on average 1.7023809523809523) internal successors, (715), 441 states have internal predecessors, (715), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:50:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 892 transitions. [2024-11-08 14:50:39,933 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 892 transitions. Word has length 56 [2024-11-08 14:50:39,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:39,934 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 892 transitions. [2024-11-08 14:50:39,934 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:50:39,934 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 892 transitions. [2024-11-08 14:50:39,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 14:50:39,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:39,937 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:39,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 14:50:39,937 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:39,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:39,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1890375133, now seen corresponding path program 1 times [2024-11-08 14:50:39,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:39,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747464653] [2024-11-08 14:50:39,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:39,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:40,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:40,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:40,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:40,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:40,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:40,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 14:50:40,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:40,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:40,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:40,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:40,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:50:40,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:40,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747464653] [2024-11-08 14:50:40,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747464653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:40,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:40,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:50:40,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351685250] [2024-11-08 14:50:40,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:40,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:50:40,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:40,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:50:40,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:50:40,455 INFO L87 Difference]: Start difference. First operand 533 states and 892 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:50:43,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:43,674 INFO L93 Difference]: Finished difference Result 1210 states and 2051 transitions. [2024-11-08 14:50:43,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 14:50:43,674 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2024-11-08 14:50:43,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:43,679 INFO L225 Difference]: With dead ends: 1210 [2024-11-08 14:50:43,679 INFO L226 Difference]: Without dead ends: 695 [2024-11-08 14:50:43,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:50:43,681 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 1090 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 2726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:43,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1167 Valid, 1138 Invalid, 2726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 14:50:43,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-11-08 14:50:43,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 533. [2024-11-08 14:50:43,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 420 states have (on average 1.7) internal successors, (714), 441 states have internal predecessors, (714), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:50:43,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 891 transitions. [2024-11-08 14:50:43,743 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 891 transitions. Word has length 59 [2024-11-08 14:50:43,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:43,744 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 891 transitions. [2024-11-08 14:50:43,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:50:43,744 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 891 transitions. [2024-11-08 14:50:43,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-08 14:50:43,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:43,746 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:43,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 14:50:43,746 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:43,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:43,746 INFO L85 PathProgramCache]: Analyzing trace with hash -2145122521, now seen corresponding path program 1 times [2024-11-08 14:50:43,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:43,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789080995] [2024-11-08 14:50:43,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:43,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:43,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:43,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:43,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:43,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:43,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:50:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:44,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:50:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:44,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:44,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:44,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:44,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:50:44,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:44,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789080995] [2024-11-08 14:50:44,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789080995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:44,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:44,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:50:44,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258705327] [2024-11-08 14:50:44,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:44,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:50:44,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:44,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:50:44,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:50:44,180 INFO L87 Difference]: Start difference. First operand 533 states and 891 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, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:50:47,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:47,287 INFO L93 Difference]: Finished difference Result 1210 states and 2050 transitions. [2024-11-08 14:50:47,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 14:50:47,287 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, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2024-11-08 14:50:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:47,292 INFO L225 Difference]: With dead ends: 1210 [2024-11-08 14:50:47,292 INFO L226 Difference]: Without dead ends: 695 [2024-11-08 14:50:47,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:50:47,294 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 659 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 2616 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:47,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1137 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2616 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 14:50:47,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-11-08 14:50:47,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 533. [2024-11-08 14:50:47,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 420 states have (on average 1.6976190476190476) internal successors, (713), 441 states have internal predecessors, (713), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:50:47,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 890 transitions. [2024-11-08 14:50:47,348 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 890 transitions. Word has length 60 [2024-11-08 14:50:47,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:47,348 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 890 transitions. [2024-11-08 14:50:47,348 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, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:50:47,348 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 890 transitions. [2024-11-08 14:50:47,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 14:50:47,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:47,350 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:47,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 14:50:47,350 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:47,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:47,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1890778849, now seen corresponding path program 1 times [2024-11-08 14:50:47,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:47,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526449904] [2024-11-08 14:50:47,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:47,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:47,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:47,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:47,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:47,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 14:50:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:47,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 14:50:47,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:47,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:47,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:50:47,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:47,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526449904] [2024-11-08 14:50:47,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526449904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:47,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:47,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:50:47,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465227666] [2024-11-08 14:50:47,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:47,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:50:47,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:47,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:50:47,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:50:47,797 INFO L87 Difference]: Start difference. First operand 533 states and 890 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:50:50,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:50,975 INFO L93 Difference]: Finished difference Result 1210 states and 2049 transitions. [2024-11-08 14:50:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 14:50:50,976 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2024-11-08 14:50:50,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:50,980 INFO L225 Difference]: With dead ends: 1210 [2024-11-08 14:50:50,980 INFO L226 Difference]: Without dead ends: 695 [2024-11-08 14:50:50,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:50:50,982 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 656 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 2616 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:50,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1146 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2616 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 14:50:50,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-11-08 14:50:51,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 533. [2024-11-08 14:50:51,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 420 states have (on average 1.6952380952380952) internal successors, (712), 441 states have internal predecessors, (712), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:50:51,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 889 transitions. [2024-11-08 14:50:51,033 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 889 transitions. Word has length 61 [2024-11-08 14:50:51,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:51,033 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 889 transitions. [2024-11-08 14:50:51,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:50:51,033 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 889 transitions. [2024-11-08 14:50:51,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-08 14:50:51,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:51,034 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:51,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 14:50:51,034 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:51,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:51,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1260485795, now seen corresponding path program 1 times [2024-11-08 14:50:51,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:51,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189883544] [2024-11-08 14:50:51,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:51,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:51,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:51,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:51,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:50:51,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:51,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:50:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:51,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:51,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:51,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:51,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:50:51,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:51,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189883544] [2024-11-08 14:50:51,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189883544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:51,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:51,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:50:51,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658536367] [2024-11-08 14:50:51,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:51,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:50:51,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:51,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:50:51,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:50:51,442 INFO L87 Difference]: Start difference. First operand 533 states and 889 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:50:54,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:54,230 INFO L93 Difference]: Finished difference Result 1210 states and 2048 transitions. [2024-11-08 14:50:54,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 14:50:54,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2024-11-08 14:50:54,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:54,234 INFO L225 Difference]: With dead ends: 1210 [2024-11-08 14:50:54,234 INFO L226 Difference]: Without dead ends: 695 [2024-11-08 14:50:54,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:50:54,236 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 1080 mSDsluCounter, 809 mSDsCounter, 0 mSdLazyCounter, 2464 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 2714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 2464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:54,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1157 Valid, 1144 Invalid, 2714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 2464 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 14:50:54,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2024-11-08 14:50:54,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 533. [2024-11-08 14:50:54,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 420 states have (on average 1.6928571428571428) internal successors, (711), 441 states have internal predecessors, (711), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:50:54,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 888 transitions. [2024-11-08 14:50:54,287 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 888 transitions. Word has length 62 [2024-11-08 14:50:54,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:54,287 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 888 transitions. [2024-11-08 14:50:54,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:50:54,287 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 888 transitions. [2024-11-08 14:50:54,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 14:50:54,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:54,288 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:54,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 14:50:54,288 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:54,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:54,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1456327238, now seen corresponding path program 1 times [2024-11-08 14:50:54,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:54,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196679663] [2024-11-08 14:50:54,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:54,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:50:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:50:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:54,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:50:54,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:54,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196679663] [2024-11-08 14:50:54,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196679663] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:54,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:54,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:50:54,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289712945] [2024-11-08 14:50:54,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:54,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:50:54,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:54,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:50:54,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:50:54,675 INFO L87 Difference]: Start difference. First operand 533 states and 888 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:50:57,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:50:57,490 INFO L93 Difference]: Finished difference Result 1182 states and 1989 transitions. [2024-11-08 14:50:57,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 14:50:57,491 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2024-11-08 14:50:57,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:50:57,494 INFO L225 Difference]: With dead ends: 1182 [2024-11-08 14:50:57,494 INFO L226 Difference]: Without dead ends: 707 [2024-11-08 14:50:57,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:50:57,496 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 715 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 2717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:50:57,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1179 Invalid, 2717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 14:50:57,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-11-08 14:50:57,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 533. [2024-11-08 14:50:57,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 420 states have (on average 1.680952380952381) internal successors, (706), 441 states have internal predecessors, (706), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:50:57,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 883 transitions. [2024-11-08 14:50:57,547 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 883 transitions. Word has length 63 [2024-11-08 14:50:57,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:50:57,547 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 883 transitions. [2024-11-08 14:50:57,548 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:50:57,548 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 883 transitions. [2024-11-08 14:50:57,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-08 14:50:57,549 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:50:57,549 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:50:57,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 14:50:57,549 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:50:57,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:50:57,550 INFO L85 PathProgramCache]: Analyzing trace with hash 53797837, now seen corresponding path program 1 times [2024-11-08 14:50:57,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:50:57,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856816656] [2024-11-08 14:50:57,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:50:57,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:50:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:57,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:50:57,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:57,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:57,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:50:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:57,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 14:50:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:57,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:57,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:50:57,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:50:57,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:50:57,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:50:57,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856816656] [2024-11-08 14:50:57,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856816656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:50:57,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:50:57,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:50:57,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741503790] [2024-11-08 14:50:57,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:50:57,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:50:57,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:50:57,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:50:57,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:50:57,944 INFO L87 Difference]: Start difference. First operand 533 states and 883 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:00,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:00,812 INFO L93 Difference]: Finished difference Result 1182 states and 1984 transitions. [2024-11-08 14:51:00,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 14:51:00,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2024-11-08 14:51:00,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:00,816 INFO L225 Difference]: With dead ends: 1182 [2024-11-08 14:51:00,816 INFO L226 Difference]: Without dead ends: 707 [2024-11-08 14:51:00,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:51:00,818 INFO L432 NwaCegarLoop]: 332 mSDtfsCounter, 714 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:00,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 1143 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 2566 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 14:51:00,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-11-08 14:51:00,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 533. [2024-11-08 14:51:00,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 420 states have (on average 1.6690476190476191) internal successors, (701), 441 states have internal predecessors, (701), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:51:00,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 878 transitions. [2024-11-08 14:51:00,869 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 878 transitions. Word has length 64 [2024-11-08 14:51:00,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:00,869 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 878 transitions. [2024-11-08 14:51:00,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:00,870 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 878 transitions. [2024-11-08 14:51:00,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 14:51:00,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:00,871 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:00,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 14:51:00,871 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:00,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:00,871 INFO L85 PathProgramCache]: Analyzing trace with hash -695415713, now seen corresponding path program 1 times [2024-11-08 14:51:00,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:00,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826856506] [2024-11-08 14:51:00,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:00,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:00,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:00,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:01,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:01,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:01,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 14:51:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:01,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:01,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:01,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:01,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:01,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826856506] [2024-11-08 14:51:01,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826856506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:01,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:01,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:51:01,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139955903] [2024-11-08 14:51:01,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:01,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:51:01,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:01,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:51:01,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:51:01,254 INFO L87 Difference]: Start difference. First operand 533 states and 878 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:03,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:03,860 INFO L93 Difference]: Finished difference Result 1182 states and 1979 transitions. [2024-11-08 14:51:03,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 14:51:03,861 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-11-08 14:51:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:03,864 INFO L225 Difference]: With dead ends: 1182 [2024-11-08 14:51:03,864 INFO L226 Difference]: Without dead ends: 707 [2024-11-08 14:51:03,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:51:03,866 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 1146 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 1136 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:03,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 1136 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 14:51:03,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-11-08 14:51:03,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 533. [2024-11-08 14:51:03,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 420 states have (on average 1.6571428571428573) internal successors, (696), 441 states have internal predecessors, (696), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:51:03,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 873 transitions. [2024-11-08 14:51:03,936 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 873 transitions. Word has length 65 [2024-11-08 14:51:03,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:03,938 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 873 transitions. [2024-11-08 14:51:03,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:03,939 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 873 transitions. [2024-11-08 14:51:03,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 14:51:03,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:03,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:03,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 14:51:03,940 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:03,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:03,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1447465613, now seen corresponding path program 1 times [2024-11-08 14:51:03,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:03,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974122821] [2024-11-08 14:51:03,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:03,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:04,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 14:51:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:04,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:04,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:04,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974122821] [2024-11-08 14:51:04,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974122821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:04,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:04,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:51:04,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802299112] [2024-11-08 14:51:04,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:04,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:51:04,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:04,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:51:04,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:51:04,322 INFO L87 Difference]: Start difference. First operand 533 states and 873 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:07,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:07,298 INFO L93 Difference]: Finished difference Result 1168 states and 1952 transitions. [2024-11-08 14:51:07,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:51:07,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2024-11-08 14:51:07,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:07,302 INFO L225 Difference]: With dead ends: 1168 [2024-11-08 14:51:07,302 INFO L226 Difference]: Without dead ends: 699 [2024-11-08 14:51:07,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:51:07,303 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 701 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 2488 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 2610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 2488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:07,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 1116 Invalid, 2610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 2488 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 14:51:07,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2024-11-08 14:51:07,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 535. [2024-11-08 14:51:07,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 422 states have (on average 1.6540284360189574) internal successors, (698), 443 states have internal predecessors, (698), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:51:07,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 875 transitions. [2024-11-08 14:51:07,356 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 875 transitions. Word has length 66 [2024-11-08 14:51:07,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:07,356 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 875 transitions. [2024-11-08 14:51:07,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:07,356 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 875 transitions. [2024-11-08 14:51:07,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 14:51:07,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:07,357 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:07,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 14:51:07,358 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:07,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:07,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1530317394, now seen corresponding path program 1 times [2024-11-08 14:51:07,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:07,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063180022] [2024-11-08 14:51:07,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:07,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 14:51:07,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:07,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:07,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:07,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:07,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063180022] [2024-11-08 14:51:07,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063180022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:07,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:07,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:51:07,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481755521] [2024-11-08 14:51:07,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:07,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:51:07,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:07,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:51:07,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:51:07,758 INFO L87 Difference]: Start difference. First operand 535 states and 875 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:10,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:10,570 INFO L93 Difference]: Finished difference Result 1188 states and 1979 transitions. [2024-11-08 14:51:10,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 14:51:10,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2024-11-08 14:51:10,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:10,574 INFO L225 Difference]: With dead ends: 1188 [2024-11-08 14:51:10,574 INFO L226 Difference]: Without dead ends: 711 [2024-11-08 14:51:10,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:51:10,575 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 712 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 2497 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 789 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 2624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:10,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [789 Valid, 1130 Invalid, 2624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2497 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 14:51:10,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-08 14:51:10,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 535. [2024-11-08 14:51:10,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 422 states have (on average 1.6421800947867298) internal successors, (693), 443 states have internal predecessors, (693), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:51:10,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 870 transitions. [2024-11-08 14:51:10,627 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 870 transitions. Word has length 66 [2024-11-08 14:51:10,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:10,628 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 870 transitions. [2024-11-08 14:51:10,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:10,628 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 870 transitions. [2024-11-08 14:51:10,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 14:51:10,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:10,629 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:10,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 14:51:10,629 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:10,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:10,630 INFO L85 PathProgramCache]: Analyzing trace with hash -236840319, now seen corresponding path program 1 times [2024-11-08 14:51:10,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:10,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241285031] [2024-11-08 14:51:10,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:10,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:10,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:10,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:10,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:10,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:51:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:11,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:11,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:11,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241285031] [2024-11-08 14:51:11,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241285031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:11,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:11,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:51:11,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569000149] [2024-11-08 14:51:11,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:11,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:51:11,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:11,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:51:11,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:51:11,029 INFO L87 Difference]: Start difference. First operand 535 states and 870 transitions. Second operand has 9 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 14:51:14,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:14,799 INFO L93 Difference]: Finished difference Result 1182 states and 1964 transitions. [2024-11-08 14:51:14,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 14:51:14,800 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 67 [2024-11-08 14:51:14,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:14,804 INFO L225 Difference]: With dead ends: 1182 [2024-11-08 14:51:14,804 INFO L226 Difference]: Without dead ends: 713 [2024-11-08 14:51:14,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:51:14,806 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 1131 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 4425 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1209 SdHoareTripleChecker+Valid, 1979 SdHoareTripleChecker+Invalid, 4683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 4425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:14,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1209 Valid, 1979 Invalid, 4683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 4425 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-08 14:51:14,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-08 14:51:14,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 538. [2024-11-08 14:51:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 425 states have (on average 1.6376470588235295) internal successors, (696), 446 states have internal predecessors, (696), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:51:14,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 873 transitions. [2024-11-08 14:51:14,878 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 873 transitions. Word has length 67 [2024-11-08 14:51:14,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:14,878 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 873 transitions. [2024-11-08 14:51:14,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.75) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 14:51:14,878 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 873 transitions. [2024-11-08 14:51:14,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 14:51:14,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:14,880 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:14,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 14:51:14,880 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:14,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:14,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1490116356, now seen corresponding path program 1 times [2024-11-08 14:51:14,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:14,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221933147] [2024-11-08 14:51:14,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:14,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:14,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:15,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:15,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:15,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:15,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:51:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:15,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:15,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:15,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:15,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:15,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221933147] [2024-11-08 14:51:15,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221933147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:15,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:15,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:51:15,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330154146] [2024-11-08 14:51:15,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:15,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:51:15,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:15,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:51:15,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:51:15,282 INFO L87 Difference]: Start difference. First operand 538 states and 873 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:18,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:18,036 INFO L93 Difference]: Finished difference Result 1197 states and 1982 transitions. [2024-11-08 14:51:18,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 14:51:18,036 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2024-11-08 14:51:18,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:18,040 INFO L225 Difference]: With dead ends: 1197 [2024-11-08 14:51:18,040 INFO L226 Difference]: Without dead ends: 717 [2024-11-08 14:51:18,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:51:18,041 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 710 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 2472 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 2599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 2472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:18,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 1130 Invalid, 2599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 2472 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 14:51:18,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2024-11-08 14:51:18,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 538. [2024-11-08 14:51:18,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 425 states have (on average 1.6258823529411766) internal successors, (691), 446 states have internal predecessors, (691), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:51:18,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 868 transitions. [2024-11-08 14:51:18,109 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 868 transitions. Word has length 67 [2024-11-08 14:51:18,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:18,109 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 868 transitions. [2024-11-08 14:51:18,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:18,109 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 868 transitions. [2024-11-08 14:51:18,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 14:51:18,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:18,110 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:18,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 14:51:18,110 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:18,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:18,110 INFO L85 PathProgramCache]: Analyzing trace with hash 286666936, now seen corresponding path program 1 times [2024-11-08 14:51:18,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:18,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007927896] [2024-11-08 14:51:18,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:18,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:18,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:18,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:18,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:18,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:18,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:51:18,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:18,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:18,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:18,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:18,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:18,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:18,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007927896] [2024-11-08 14:51:18,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007927896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:18,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:18,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:51:18,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220931992] [2024-11-08 14:51:18,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:18,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:51:18,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:18,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:51:18,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:51:18,523 INFO L87 Difference]: Start difference. First operand 538 states and 868 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 14:51:22,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:22,573 INFO L93 Difference]: Finished difference Result 1190 states and 1967 transitions. [2024-11-08 14:51:22,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 14:51:22,574 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2024-11-08 14:51:22,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:22,577 INFO L225 Difference]: With dead ends: 1190 [2024-11-08 14:51:22,577 INFO L226 Difference]: Without dead ends: 721 [2024-11-08 14:51:22,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:51:22,579 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 693 mSDsluCounter, 1717 mSDsCounter, 0 mSdLazyCounter, 4538 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 4660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 4538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:22,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 2051 Invalid, 4660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 4538 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 14:51:22,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-08 14:51:22,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 542. [2024-11-08 14:51:22,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 429 states have (on average 1.6200466200466201) internal successors, (695), 450 states have internal predecessors, (695), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:51:22,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 872 transitions. [2024-11-08 14:51:22,646 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 872 transitions. Word has length 68 [2024-11-08 14:51:22,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:22,646 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 872 transitions. [2024-11-08 14:51:22,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 14:51:22,646 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 872 transitions. [2024-11-08 14:51:22,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 14:51:22,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:22,647 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:22,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 14:51:22,648 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:22,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:22,648 INFO L85 PathProgramCache]: Analyzing trace with hash -74566441, now seen corresponding path program 1 times [2024-11-08 14:51:22,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:22,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967117545] [2024-11-08 14:51:22,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:22,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:22,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:22,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:22,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:23,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:51:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:23,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:23,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:23,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:23,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:23,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967117545] [2024-11-08 14:51:23,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967117545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:23,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:23,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:51:23,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715038551] [2024-11-08 14:51:23,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:23,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:51:23,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:23,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:51:23,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:51:23,028 INFO L87 Difference]: Start difference. First operand 542 states and 872 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:25,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:25,864 INFO L93 Difference]: Finished difference Result 1237 states and 2024 transitions. [2024-11-08 14:51:25,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 14:51:25,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2024-11-08 14:51:25,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:25,868 INFO L225 Difference]: With dead ends: 1237 [2024-11-08 14:51:25,868 INFO L226 Difference]: Without dead ends: 713 [2024-11-08 14:51:25,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:51:25,870 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 653 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 2478 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1131 SdHoareTripleChecker+Invalid, 2597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:25,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 1131 Invalid, 2597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2478 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 14:51:25,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-08 14:51:25,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 542. [2024-11-08 14:51:25,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 429 states have (on average 1.6177156177156178) internal successors, (694), 450 states have internal predecessors, (694), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:51:25,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 871 transitions. [2024-11-08 14:51:25,937 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 871 transitions. Word has length 68 [2024-11-08 14:51:25,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:25,938 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 871 transitions. [2024-11-08 14:51:25,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:25,938 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 871 transitions. [2024-11-08 14:51:25,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 14:51:25,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:25,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:25,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 14:51:25,939 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:25,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:25,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1207757034, now seen corresponding path program 1 times [2024-11-08 14:51:25,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:25,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481056884] [2024-11-08 14:51:25,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:25,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:26,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:26,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:26,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:26,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:26,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:51:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:26,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:26,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:26,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:26,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:26,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481056884] [2024-11-08 14:51:26,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481056884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:26,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:26,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 14:51:26,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860023528] [2024-11-08 14:51:26,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:26,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 14:51:26,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:26,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 14:51:26,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:51:26,413 INFO L87 Difference]: Start difference. First operand 542 states and 871 transitions. Second operand has 11 states, 10 states have (on average 5.5) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 14:51:30,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:30,753 INFO L93 Difference]: Finished difference Result 1193 states and 1968 transitions. [2024-11-08 14:51:30,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 14:51:30,754 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 68 [2024-11-08 14:51:30,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:30,757 INFO L225 Difference]: With dead ends: 1193 [2024-11-08 14:51:30,757 INFO L226 Difference]: Without dead ends: 703 [2024-11-08 14:51:30,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2024-11-08 14:51:30,759 INFO L432 NwaCegarLoop]: 331 mSDtfsCounter, 705 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 5918 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 2639 SdHoareTripleChecker+Invalid, 6039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 5918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:30,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 2639 Invalid, 6039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 5918 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 14:51:30,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2024-11-08 14:51:30,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 534. [2024-11-08 14:51:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 421 states have (on average 1.6223277909738718) internal successors, (683), 442 states have internal predecessors, (683), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:51:30,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 860 transitions. [2024-11-08 14:51:30,815 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 860 transitions. Word has length 68 [2024-11-08 14:51:30,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:30,816 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 860 transitions. [2024-11-08 14:51:30,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.5) internal successors, (55), 8 states have internal predecessors, (55), 3 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 14:51:30,816 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 860 transitions. [2024-11-08 14:51:30,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 14:51:30,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:30,817 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:30,817 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 14:51:30,817 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:30,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:30,817 INFO L85 PathProgramCache]: Analyzing trace with hash 215181447, now seen corresponding path program 1 times [2024-11-08 14:51:30,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:30,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73843388] [2024-11-08 14:51:30,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:30,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:30,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:30,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:30,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 14:51:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:31,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:31,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:31,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73843388] [2024-11-08 14:51:31,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73843388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:31,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:31,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:51:31,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916853492] [2024-11-08 14:51:31,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:31,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:51:31,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:31,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:51:31,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:51:31,213 INFO L87 Difference]: Start difference. First operand 534 states and 860 transitions. Second operand has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 14:51:34,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:34,929 INFO L93 Difference]: Finished difference Result 1182 states and 1951 transitions. [2024-11-08 14:51:34,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 14:51:34,930 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 69 [2024-11-08 14:51:34,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:34,933 INFO L225 Difference]: With dead ends: 1182 [2024-11-08 14:51:34,933 INFO L226 Difference]: Without dead ends: 713 [2024-11-08 14:51:34,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:51:34,935 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 1098 mSDsluCounter, 1646 mSDsCounter, 0 mSdLazyCounter, 4321 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 4579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 4321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:34,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1175 Valid, 1966 Invalid, 4579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 4321 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-08 14:51:34,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2024-11-08 14:51:34,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 539. [2024-11-08 14:51:34,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 426 states have (on average 1.6150234741784038) internal successors, (688), 447 states have internal predecessors, (688), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:51:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 865 transitions. [2024-11-08 14:51:34,994 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 865 transitions. Word has length 69 [2024-11-08 14:51:34,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:34,995 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 865 transitions. [2024-11-08 14:51:34,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 7.0) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 14:51:34,995 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 865 transitions. [2024-11-08 14:51:34,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 14:51:34,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:34,996 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:34,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 14:51:34,996 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:34,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:34,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1063227830, now seen corresponding path program 1 times [2024-11-08 14:51:34,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:34,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181376806] [2024-11-08 14:51:34,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:34,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:35,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:51:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:35,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:35,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:35,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:35,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181376806] [2024-11-08 14:51:35,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181376806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:35,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:35,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 14:51:35,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338729740] [2024-11-08 14:51:35,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:35,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 14:51:35,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:35,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 14:51:35,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 14:51:35,423 INFO L87 Difference]: Start difference. First operand 539 states and 865 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:38,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:38,060 INFO L93 Difference]: Finished difference Result 1194 states and 1962 transitions. [2024-11-08 14:51:38,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:51:38,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2024-11-08 14:51:38,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:38,064 INFO L225 Difference]: With dead ends: 1194 [2024-11-08 14:51:38,064 INFO L226 Difference]: Without dead ends: 704 [2024-11-08 14:51:38,065 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:51:38,065 INFO L432 NwaCegarLoop]: 333 mSDtfsCounter, 1110 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 2560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:38,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 1139 Invalid, 2560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 14:51:38,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2024-11-08 14:51:38,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 539. [2024-11-08 14:51:38,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 426 states have (on average 1.6056338028169015) internal successors, (684), 447 states have internal predecessors, (684), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-08 14:51:38,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 861 transitions. [2024-11-08 14:51:38,123 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 861 transitions. Word has length 70 [2024-11-08 14:51:38,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:38,123 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 861 transitions. [2024-11-08 14:51:38,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 14:51:38,123 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 861 transitions. [2024-11-08 14:51:38,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-08 14:51:38,124 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:38,124 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:38,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 14:51:38,124 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:38,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:38,124 INFO L85 PathProgramCache]: Analyzing trace with hash 308579468, now seen corresponding path program 1 times [2024-11-08 14:51:38,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:38,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625672031] [2024-11-08 14:51:38,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:38,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:38,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:51:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:38,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:38,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:38,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625672031] [2024-11-08 14:51:38,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625672031] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:38,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:38,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 14:51:38,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277084266] [2024-11-08 14:51:38,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:38,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 14:51:38,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:38,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 14:51:38,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-08 14:51:38,678 INFO L87 Difference]: Start difference. First operand 539 states and 861 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 14:51:43,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:43,804 INFO L93 Difference]: Finished difference Result 1959 states and 3314 transitions. [2024-11-08 14:51:43,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 14:51:43,805 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 70 [2024-11-08 14:51:43,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:43,812 INFO L225 Difference]: With dead ends: 1959 [2024-11-08 14:51:43,812 INFO L226 Difference]: Without dead ends: 1498 [2024-11-08 14:51:43,813 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:51:43,813 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 4176 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 3540 mSolverCounterSat, 1081 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4258 SdHoareTripleChecker+Valid, 1652 SdHoareTripleChecker+Invalid, 4621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1081 IncrementalHoareTripleChecker+Valid, 3540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:43,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4258 Valid, 1652 Invalid, 4621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1081 Valid, 3540 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-08 14:51:43,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2024-11-08 14:51:43,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1021. [2024-11-08 14:51:43,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 809 states have (on average 1.6489493201483312) internal successors, (1334), 839 states have internal predecessors, (1334), 174 states have call successors, (174), 36 states have call predecessors, (174), 37 states have return successors, (176), 158 states have call predecessors, (176), 169 states have call successors, (176) [2024-11-08 14:51:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1684 transitions. [2024-11-08 14:51:43,956 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1684 transitions. Word has length 70 [2024-11-08 14:51:43,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:43,956 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1684 transitions. [2024-11-08 14:51:43,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 6 states have internal predecessors, (57), 4 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 14:51:43,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1684 transitions. [2024-11-08 14:51:43,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 14:51:43,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:43,958 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:43,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 14:51:43,959 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:43,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:43,959 INFO L85 PathProgramCache]: Analyzing trace with hash -806032662, now seen corresponding path program 1 times [2024-11-08 14:51:43,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:43,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513919240] [2024-11-08 14:51:43,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:43,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:43,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:44,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:44,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:44,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:44,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:44,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:51:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:44,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:44,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:44,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:44,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:44,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:44,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:51:44,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:44,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 14:51:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:44,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:44,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:44,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513919240] [2024-11-08 14:51:44,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513919240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:44,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:44,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 14:51:44,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125961915] [2024-11-08 14:51:44,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:44,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 14:51:44,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:44,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 14:51:44,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:51:44,947 INFO L87 Difference]: Start difference. First operand 1021 states and 1684 transitions. Second operand has 12 states, 12 states have (on average 6.5) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-08 14:51:49,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:49,601 INFO L93 Difference]: Finished difference Result 2474 states and 4187 transitions. [2024-11-08 14:51:49,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 14:51:49,602 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 99 [2024-11-08 14:51:49,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:49,609 INFO L225 Difference]: With dead ends: 2474 [2024-11-08 14:51:49,609 INFO L226 Difference]: Without dead ends: 1532 [2024-11-08 14:51:49,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=163, Invalid=343, Unknown=0, NotChecked=0, Total=506 [2024-11-08 14:51:49,612 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 3630 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 3543 mSolverCounterSat, 1123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3630 SdHoareTripleChecker+Valid, 1975 SdHoareTripleChecker+Invalid, 4666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1123 IncrementalHoareTripleChecker+Valid, 3543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:49,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3630 Valid, 1975 Invalid, 4666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1123 Valid, 3543 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-08 14:51:49,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2024-11-08 14:51:49,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1029. [2024-11-08 14:51:49,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1029 states, 815 states have (on average 1.6441717791411044) internal successors, (1340), 845 states have internal predecessors, (1340), 174 states have call successors, (174), 36 states have call predecessors, (174), 39 states have return successors, (180), 160 states have call predecessors, (180), 169 states have call successors, (180) [2024-11-08 14:51:49,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1029 states to 1029 states and 1694 transitions. [2024-11-08 14:51:49,789 INFO L78 Accepts]: Start accepts. Automaton has 1029 states and 1694 transitions. Word has length 99 [2024-11-08 14:51:49,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:49,791 INFO L471 AbstractCegarLoop]: Abstraction has 1029 states and 1694 transitions. [2024-11-08 14:51:49,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.5) internal successors, (78), 7 states have internal predecessors, (78), 4 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-08 14:51:49,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1029 states and 1694 transitions. [2024-11-08 14:51:49,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 14:51:49,794 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:49,794 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:49,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 14:51:49,794 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:49,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:49,795 INFO L85 PathProgramCache]: Analyzing trace with hash -350500354, now seen corresponding path program 1 times [2024-11-08 14:51:49,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:49,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088138119] [2024-11-08 14:51:49,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:49,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:49,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:50,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:50,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:50,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:50,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:51:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:50,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:50,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:50,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:50,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:51:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:50,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:50,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:51:50,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:50,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 14:51:50,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:50,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:50,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:50,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088138119] [2024-11-08 14:51:50,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088138119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:50,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:50,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 14:51:50,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843415897] [2024-11-08 14:51:50,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:50,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 14:51:50,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:50,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 14:51:50,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:51:50,595 INFO L87 Difference]: Start difference. First operand 1029 states and 1694 transitions. Second operand has 12 states, 12 states have (on average 6.75) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 14:51:56,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:56,703 INFO L93 Difference]: Finished difference Result 2985 states and 5082 transitions. [2024-11-08 14:51:56,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 14:51:56,704 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 102 [2024-11-08 14:51:56,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:56,712 INFO L225 Difference]: With dead ends: 2985 [2024-11-08 14:51:56,713 INFO L226 Difference]: Without dead ends: 2035 [2024-11-08 14:51:56,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=134, Invalid=418, Unknown=0, NotChecked=0, Total=552 [2024-11-08 14:51:56,716 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 2293 mSDsluCounter, 2299 mSDsCounter, 0 mSdLazyCounter, 5865 mSolverCounterSat, 767 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 2695 SdHoareTripleChecker+Invalid, 6632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 767 IncrementalHoareTripleChecker+Valid, 5865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:56,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 2695 Invalid, 6632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [767 Valid, 5865 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-08 14:51:56,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2035 states. [2024-11-08 14:51:57,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2035 to 1439. [2024-11-08 14:51:57,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1134 states have (on average 1.6181657848324515) internal successors, (1835), 1168 states have internal predecessors, (1835), 247 states have call successors, (247), 47 states have call predecessors, (247), 57 states have return successors, (287), 234 states have call predecessors, (287), 242 states have call successors, (287) [2024-11-08 14:51:57,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 2369 transitions. [2024-11-08 14:51:57,042 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 2369 transitions. Word has length 102 [2024-11-08 14:51:57,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:57,043 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 2369 transitions. [2024-11-08 14:51:57,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 8 states have internal predecessors, (81), 3 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 14:51:57,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 2369 transitions. [2024-11-08 14:51:57,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 14:51:57,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:57,045 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:51:57,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 14:51:57,045 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:57,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:57,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1550930972, now seen corresponding path program 1 times [2024-11-08 14:51:57,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:57,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203559945] [2024-11-08 14:51:57,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:57,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:57,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:57,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:57,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:57,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:51:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:57,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 14:51:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:57,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:57,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:57,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:57,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:51:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:57,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:57,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 14:51:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:57,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 14:51:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:57,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:51:57,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:57,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203559945] [2024-11-08 14:51:57,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203559945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:57,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:57,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-08 14:51:57,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903266570] [2024-11-08 14:51:57,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:57,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-08 14:51:57,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:57,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-08 14:51:57,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2024-11-08 14:51:57,894 INFO L87 Difference]: Start difference. First operand 1439 states and 2369 transitions. Second operand has 18 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 13 states have internal predecessors, (84), 5 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10)