./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product29.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_product29.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 a9d4bfafe2ee2b10c7451875462462bdbc63aaee25e1868c3faa4756fb5ebfc5 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 14:51:42,396 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 14:51:42,477 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 14:51:42,482 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 14:51:42,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 14:51:42,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 14:51:42,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 14:51:42,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 14:51:42,511 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 14:51:42,513 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 14:51:42,513 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 14:51:42,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 14:51:42,514 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 14:51:42,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 14:51:42,514 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 14:51:42,516 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 14:51:42,516 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 14:51:42,516 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 14:51:42,517 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 14:51:42,517 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 14:51:42,517 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 14:51:42,518 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 14:51:42,518 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 14:51:42,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 14:51:42,519 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 14:51:42,519 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 14:51:42,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 14:51:42,519 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 14:51:42,520 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 14:51:42,520 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 14:51:42,520 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 14:51:42,520 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 14:51:42,521 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:51:42,521 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 14:51:42,521 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 14:51:42,521 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 14:51:42,522 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 14:51:42,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 14:51:42,522 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 14:51:42,523 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 14:51:42,523 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 14:51:42,524 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 14:51:42,524 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9d4bfafe2ee2b10c7451875462462bdbc63aaee25e1868c3faa4756fb5ebfc5 [2024-11-08 14:51:42,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 14:51:42,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 14:51:42,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 14:51:42,790 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 14:51:42,790 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 14:51:42,791 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product29.cil.c [2024-11-08 14:51:44,191 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 14:51:44,527 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 14:51:44,529 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product29.cil.c [2024-11-08 14:51:44,560 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1358055d8/fd65001c561748a08f5fe87a608eace1/FLAG7dead7511 [2024-11-08 14:51:44,767 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1358055d8/fd65001c561748a08f5fe87a608eace1 [2024-11-08 14:51:44,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 14:51:44,771 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 14:51:44,772 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 14:51:44,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 14:51:44,778 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 14:51:44,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:51:44" (1/1) ... [2024-11-08 14:51:44,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36372210 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:44, skipping insertion in model container [2024-11-08 14:51:44,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 02:51:44" (1/1) ... [2024-11-08 14:51:44,842 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 14:51:45,167 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_product29.cil.c[17414,17427] [2024-11-08 14:51:45,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:51:45,408 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 14:51:45,419 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2024-11-08 14:51:45,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [716] [2024-11-08 14:51:45,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [725] [2024-11-08 14:51:45,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [739] [2024-11-08 14:51:45,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2285] [2024-11-08 14:51:45,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2651] [2024-11-08 14:51:45,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3008] [2024-11-08 14:51:45,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3126] [2024-11-08 14:51:45,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [3217] [2024-11-08 14:51:45,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3398] [2024-11-08 14:51:45,452 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_product29.cil.c[17414,17427] [2024-11-08 14:51:45,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 14:51:45,598 INFO L204 MainTranslator]: Completed translation [2024-11-08 14:51:45,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45 WrapperNode [2024-11-08 14:51:45,602 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 14:51:45,603 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 14:51:45,603 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 14:51:45,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 14:51:45,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (1/1) ... [2024-11-08 14:51:45,649 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (1/1) ... [2024-11-08 14:51:45,705 INFO L138 Inliner]: procedures = 93, calls = 341, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 904 [2024-11-08 14:51:45,708 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 14:51:45,709 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 14:51:45,709 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 14:51:45,709 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 14:51:45,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (1/1) ... [2024-11-08 14:51:45,727 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (1/1) ... [2024-11-08 14:51:45,733 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (1/1) ... [2024-11-08 14:51:45,775 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 14:51:45,776 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (1/1) ... [2024-11-08 14:51:45,776 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (1/1) ... [2024-11-08 14:51:45,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (1/1) ... [2024-11-08 14:51:45,804 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (1/1) ... [2024-11-08 14:51:45,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (1/1) ... [2024-11-08 14:51:45,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (1/1) ... [2024-11-08 14:51:45,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 14:51:45,850 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 14:51:45,850 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 14:51:45,850 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 14:51:45,851 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (1/1) ... [2024-11-08 14:51:45,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 14:51:45,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:51:45,890 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 14:51:45,893 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 14:51:45,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 14:51:45,939 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-08 14:51:45,940 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-08 14:51:45,940 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-08 14:51:45,940 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-08 14:51:45,940 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-08 14:51:45,940 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-08 14:51:45,940 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-08 14:51:45,941 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-08 14:51:45,941 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-08 14:51:45,941 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-08 14:51:45,941 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-11-08 14:51:45,941 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-11-08 14:51:45,941 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 14:51:45,941 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 14:51:45,941 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 14:51:45,942 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 14:51:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-08 14:51:45,942 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-08 14:51:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-08 14:51:45,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-08 14:51:45,942 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-08 14:51:45,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-08 14:51:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-08 14:51:45,943 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-08 14:51:45,943 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-08 14:51:45,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-08 14:51:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-08 14:51:45,944 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-08 14:51:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-08 14:51:45,944 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-08 14:51:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-08 14:51:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-08 14:51:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-08 14:51:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-08 14:51:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-08 14:51:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-08 14:51:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-08 14:51:45,945 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-08 14:51:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 14:51:45,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 14:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 14:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 14:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 14:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 14:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 14:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 14:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 14:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-08 14:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-08 14:51:45,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-08 14:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-08 14:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-08 14:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-08 14:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-08 14:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-08 14:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-08 14:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-08 14:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-08 14:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-08 14:51:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-08 14:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-08 14:51:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-08 14:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-08 14:51:45,947 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-08 14:51:45,947 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-08 14:51:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-08 14:51:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 14:51:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 14:51:45,948 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-08 14:51:45,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-08 14:51:46,162 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 14:51:46,163 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 14:51:47,262 INFO L? ?]: Removed 460 outVars from TransFormulas that were not future-live. [2024-11-08 14:51:47,263 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 14:51:47,305 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 14:51:47,307 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 14:51:47,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:51:47 BoogieIcfgContainer [2024-11-08 14:51:47,308 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 14:51:47,310 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 14:51:47,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 14:51:47,315 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 14:51:47,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 02:51:44" (1/3) ... [2024-11-08 14:51:47,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4032260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:51:47, skipping insertion in model container [2024-11-08 14:51:47,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 02:51:45" (2/3) ... [2024-11-08 14:51:47,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4032260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 02:51:47, skipping insertion in model container [2024-11-08 14:51:47,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 02:51:47" (3/3) ... [2024-11-08 14:51:47,318 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product29.cil.c [2024-11-08 14:51:47,335 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 14:51:47,335 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 14:51:47,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 14:51:47,428 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;@6488c972, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 14:51:47,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 14:51:47,436 INFO L276 IsEmpty]: Start isEmpty. Operand has 572 states, 451 states have (on average 1.6962305986696231) internal successors, (765), 472 states have internal predecessors, (765), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (95), 89 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-08 14:51:47,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-08 14:51:47,474 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:47,475 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] [2024-11-08 14:51:47,475 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:47,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:47,482 INFO L85 PathProgramCache]: Analyzing trace with hash 2058097453, now seen corresponding path program 1 times [2024-11-08 14:51:47,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:47,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431524550] [2024-11-08 14:51:47,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:47,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:47,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:48,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:48,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:48,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:51:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:48,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 14:51:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:48,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:51:49,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:51:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:51:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:51:49,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:49,207 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 14:51:49,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:49,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431524550] [2024-11-08 14:51:49,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431524550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:49,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:49,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-08 14:51:49,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739861589] [2024-11-08 14:51:49,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:49,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 14:51:49,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:49,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 14:51:49,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-08 14:51:49,248 INFO L87 Difference]: Start difference. First operand has 572 states, 451 states have (on average 1.6962305986696231) internal successors, (765), 472 states have internal predecessors, (765), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (95), 89 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 14:51:58,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:51:58,505 INFO L93 Difference]: Finished difference Result 1394 states and 2368 transitions. [2024-11-08 14:51:58,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 14:51:58,508 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2024-11-08 14:51:58,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:51:58,544 INFO L225 Difference]: With dead ends: 1394 [2024-11-08 14:51:58,544 INFO L226 Difference]: Without dead ends: 834 [2024-11-08 14:51:58,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2024-11-08 14:51:58,559 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 1463 mSDsluCounter, 4188 mSDsCounter, 0 mSdLazyCounter, 7893 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1546 SdHoareTripleChecker+Valid, 4674 SdHoareTripleChecker+Invalid, 8262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 7893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:51:58,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1546 Valid, 4674 Invalid, 8262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [369 Valid, 7893 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-08 14:51:58,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-08 14:51:58,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 571. [2024-11-08 14:51:58,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 450 states have (on average 1.6844444444444444) internal successors, (758), 469 states have internal predecessors, (758), 95 states have call successors, (95), 24 states have call predecessors, (95), 25 states have return successors, (95), 90 states have call predecessors, (95), 90 states have call successors, (95) [2024-11-08 14:51:58,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 948 transitions. [2024-11-08 14:51:58,800 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 948 transitions. Word has length 88 [2024-11-08 14:51:58,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:51:58,801 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 948 transitions. [2024-11-08 14:51:58,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.153846153846154) internal successors, (67), 8 states have internal predecessors, (67), 2 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 14:51:58,801 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 948 transitions. [2024-11-08 14:51:58,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 14:51:58,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:51:58,808 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] [2024-11-08 14:51:58,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 14:51:58,809 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:51:58,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:51:58,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1255703864, now seen corresponding path program 1 times [2024-11-08 14:51:58,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:51:58,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219119776] [2024-11-08 14:51:58,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:51:58,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:51:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:59,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:59,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:59,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:51:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:59,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 14:51:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:59,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:51:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:59,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:51:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:59,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 14:51:59,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:59,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 14:51:59,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:59,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 14:51:59,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:59,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 14:51:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:51:59,676 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 14:51:59,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:51:59,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219119776] [2024-11-08 14:51:59,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219119776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:51:59,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:51:59,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 14:51:59,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083765237] [2024-11-08 14:51:59,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:51:59,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 14:51:59,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:51:59,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 14:51:59,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:51:59,683 INFO L87 Difference]: Start difference. First operand 571 states and 948 transitions. Second operand has 10 states, 10 states have (on average 7.1) internal successors, (71), 7 states have internal predecessors, (71), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 14:52:05,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:52:05,660 INFO L93 Difference]: Finished difference Result 1390 states and 2343 transitions. [2024-11-08 14:52:05,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 14:52:05,662 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 7 states have internal predecessors, (71), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 92 [2024-11-08 14:52:05,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:52:05,669 INFO L225 Difference]: With dead ends: 1390 [2024-11-08 14:52:05,669 INFO L226 Difference]: Without dead ends: 837 [2024-11-08 14:52:05,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-08 14:52:05,673 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 1008 mSDsluCounter, 2765 mSDsCounter, 0 mSdLazyCounter, 5519 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 3241 SdHoareTripleChecker+Invalid, 5726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 5519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:52:05,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 3241 Invalid, 5726 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [207 Valid, 5519 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 14:52:05,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2024-11-08 14:52:05,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 574. [2024-11-08 14:52:05,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 453 states have (on average 1.6777041942604856) internal successors, (760), 472 states have internal predecessors, (760), 95 states have call successors, (95), 24 states have call predecessors, (95), 25 states have return successors, (95), 90 states have call predecessors, (95), 90 states have call successors, (95) [2024-11-08 14:52:05,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 950 transitions. [2024-11-08 14:52:05,792 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 950 transitions. Word has length 92 [2024-11-08 14:52:05,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:52:05,792 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 950 transitions. [2024-11-08 14:52:05,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 7 states have internal predecessors, (71), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 14:52:05,793 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 950 transitions. [2024-11-08 14:52:05,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-08 14:52:05,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:52:05,797 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:52:05,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 14:52:05,798 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:52:05,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:52:05,798 INFO L85 PathProgramCache]: Analyzing trace with hash 133175324, now seen corresponding path program 1 times [2024-11-08 14:52:05,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:52:05,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104227068] [2024-11-08 14:52:05,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:52:05,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:52:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:06,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:52:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:06,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:06,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:52:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:06,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 14:52:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:06,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:06,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:52:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:06,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:52:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:06,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 14:52:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:06,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 14:52:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:06,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 14:52:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:06,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 14:52:06,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:06,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:52:06,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:52:06,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104227068] [2024-11-08 14:52:06,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104227068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:52:06,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:52:06,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:52:06,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742900044] [2024-11-08 14:52:06,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:52:06,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:52:06,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:52:06,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:52:06,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:52:06,435 INFO L87 Difference]: Start difference. First operand 574 states and 950 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:10,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:52:10,837 INFO L93 Difference]: Finished difference Result 1393 states and 2338 transitions. [2024-11-08 14:52:10,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:52:10,838 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2024-11-08 14:52:10,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:52:10,844 INFO L225 Difference]: With dead ends: 1393 [2024-11-08 14:52:10,844 INFO L226 Difference]: Without dead ends: 837 [2024-11-08 14:52:10,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:52:10,847 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 1445 mSDsluCounter, 1329 mSDsCounter, 0 mSdLazyCounter, 2968 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1810 SdHoareTripleChecker+Invalid, 3319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 2968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-08 14:52:10,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1525 Valid, 1810 Invalid, 3319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 2968 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-08 14:52:10,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2024-11-08 14:52:10,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 574. [2024-11-08 14:52:10,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 453 states have (on average 1.6754966887417218) internal successors, (759), 472 states have internal predecessors, (759), 95 states have call successors, (95), 24 states have call predecessors, (95), 25 states have return successors, (95), 90 states have call predecessors, (95), 90 states have call successors, (95) [2024-11-08 14:52:10,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 949 transitions. [2024-11-08 14:52:10,950 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 949 transitions. Word has length 96 [2024-11-08 14:52:10,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:52:10,951 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 949 transitions. [2024-11-08 14:52:10,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:10,951 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 949 transitions. [2024-11-08 14:52:10,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 14:52:10,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:52:10,956 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:52:10,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 14:52:10,956 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:52:10,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:52:10,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1064055155, now seen corresponding path program 1 times [2024-11-08 14:52:10,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:52:10,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265707653] [2024-11-08 14:52:10,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:52:10,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:52:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:11,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:52:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:11,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:11,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 14:52:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:11,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 14:52:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:11,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:11,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:11,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:52:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:11,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:52:11,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:11,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 14:52:11,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:11,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 14:52:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:11,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 14:52:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:11,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 14:52:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:11,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:52:11,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:52:11,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265707653] [2024-11-08 14:52:11,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265707653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:52:11,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:52:11,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:52:11,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933804541] [2024-11-08 14:52:11,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:52:11,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:52:11,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:52:11,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:52:11,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:52:11,550 INFO L87 Difference]: Start difference. First operand 574 states and 949 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:15,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:52:15,580 INFO L93 Difference]: Finished difference Result 1393 states and 2337 transitions. [2024-11-08 14:52:15,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:52:15,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2024-11-08 14:52:15,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:52:15,587 INFO L225 Difference]: With dead ends: 1393 [2024-11-08 14:52:15,588 INFO L226 Difference]: Without dead ends: 837 [2024-11-08 14:52:15,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:52:15,591 INFO L432 NwaCegarLoop]: 486 mSDtfsCounter, 1887 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 496 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 3296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 496 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-08 14:52:15,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1967 Valid, 1755 Invalid, 3296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [496 Valid, 2800 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-08 14:52:15,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2024-11-08 14:52:15,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 574. [2024-11-08 14:52:15,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 453 states have (on average 1.6732891832229582) internal successors, (758), 472 states have internal predecessors, (758), 95 states have call successors, (95), 24 states have call predecessors, (95), 25 states have return successors, (95), 90 states have call predecessors, (95), 90 states have call successors, (95) [2024-11-08 14:52:15,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 948 transitions. [2024-11-08 14:52:15,714 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 948 transitions. Word has length 97 [2024-11-08 14:52:15,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:52:15,715 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 948 transitions. [2024-11-08 14:52:15,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:15,715 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 948 transitions. [2024-11-08 14:52:15,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 14:52:15,718 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:52:15,718 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:52:15,719 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 14:52:15,719 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:52:15,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:52:15,719 INFO L85 PathProgramCache]: Analyzing trace with hash -684945736, now seen corresponding path program 1 times [2024-11-08 14:52:15,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:52:15,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595562888] [2024-11-08 14:52:15,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:52:15,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:52:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:15,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:52:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:15,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:15,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:15,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 14:52:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:16,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 14:52:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:16,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:16,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:52:16,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:16,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:52:16,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:16,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 14:52:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:16,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 14:52:16,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:16,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 14:52:16,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:16,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 14:52:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:52:16,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:52:16,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595562888] [2024-11-08 14:52:16,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595562888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:52:16,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:52:16,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:52:16,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363768426] [2024-11-08 14:52:16,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:52:16,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:52:16,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:52:16,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:52:16,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:52:16,293 INFO L87 Difference]: Start difference. First operand 574 states and 948 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:20,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:52:20,286 INFO L93 Difference]: Finished difference Result 1393 states and 2336 transitions. [2024-11-08 14:52:20,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 14:52:20,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2024-11-08 14:52:20,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:52:20,293 INFO L225 Difference]: With dead ends: 1393 [2024-11-08 14:52:20,294 INFO L226 Difference]: Without dead ends: 837 [2024-11-08 14:52:20,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:52:20,297 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 1450 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 2850 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1530 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 3207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 2850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:52:20,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1530 Valid, 1793 Invalid, 3207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 2850 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 14:52:20,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2024-11-08 14:52:20,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 574. [2024-11-08 14:52:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 574 states, 453 states have (on average 1.6710816777041944) internal successors, (757), 472 states have internal predecessors, (757), 95 states have call successors, (95), 24 states have call predecessors, (95), 25 states have return successors, (95), 90 states have call predecessors, (95), 90 states have call successors, (95) [2024-11-08 14:52:20,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 947 transitions. [2024-11-08 14:52:20,403 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 947 transitions. Word has length 98 [2024-11-08 14:52:20,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:52:20,403 INFO L471 AbstractCegarLoop]: Abstraction has 574 states and 947 transitions. [2024-11-08 14:52:20,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:20,404 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 947 transitions. [2024-11-08 14:52:20,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 14:52:20,407 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:52:20,408 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:52:20,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 14:52:20,408 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:52:20,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:52:20,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1316060265, now seen corresponding path program 1 times [2024-11-08 14:52:20,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:52:20,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733998359] [2024-11-08 14:52:20,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:52:20,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:52:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:20,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:52:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:20,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:20,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:52:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:20,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 14:52:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:21,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:21,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:52:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:21,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:52:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:21,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 14:52:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:21,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 14:52:21,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:21,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 14:52:21,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:21,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 14:52:21,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:52:21,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:52:21,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733998359] [2024-11-08 14:52:21,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733998359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:52:21,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:52:21,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 14:52:21,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055822649] [2024-11-08 14:52:21,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:52:21,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 14:52:21,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:52:21,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 14:52:21,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 14:52:21,208 INFO L87 Difference]: Start difference. First operand 574 states and 947 transitions. Second operand has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:27,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:52:27,657 INFO L93 Difference]: Finished difference Result 1372 states and 2295 transitions. [2024-11-08 14:52:27,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 14:52:27,658 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2024-11-08 14:52:27,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:52:27,664 INFO L225 Difference]: With dead ends: 1372 [2024-11-08 14:52:27,664 INFO L226 Difference]: Without dead ends: 856 [2024-11-08 14:52:27,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=93, Invalid=413, Unknown=0, NotChecked=0, Total=506 [2024-11-08 14:52:27,669 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 1973 mSDsluCounter, 3578 mSDsCounter, 0 mSdLazyCounter, 6886 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 4056 SdHoareTripleChecker+Invalid, 7413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 6886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 14:52:27,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 4056 Invalid, 7413 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [527 Valid, 6886 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 14:52:27,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-11-08 14:52:27,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 575. [2024-11-08 14:52:27,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 454 states have (on average 1.658590308370044) internal successors, (753), 472 states have internal predecessors, (753), 95 states have call successors, (95), 24 states have call predecessors, (95), 25 states have return successors, (95), 91 states have call predecessors, (95), 90 states have call successors, (95) [2024-11-08 14:52:27,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 943 transitions. [2024-11-08 14:52:27,780 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 943 transitions. Word has length 99 [2024-11-08 14:52:27,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:52:27,780 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 943 transitions. [2024-11-08 14:52:27,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.166666666666667) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (12), 5 states have call predecessors, (12), 5 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:27,781 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 943 transitions. [2024-11-08 14:52:27,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 14:52:27,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:52:27,784 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:52:27,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 14:52:27,784 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:52:27,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:52:27,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1213122392, now seen corresponding path program 1 times [2024-11-08 14:52:27,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:52:27,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599888470] [2024-11-08 14:52:27,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:52:27,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:52:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:28,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:52:28,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:28,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:28,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:52:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:28,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 14:52:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:28,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:28,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:52:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:28,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:52:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:28,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 14:52:28,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:28,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 14:52:28,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:28,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 14:52:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:28,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 14:52:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:28,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:52:28,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:52:28,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599888470] [2024-11-08 14:52:28,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599888470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:52:28,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:52:28,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 14:52:28,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643083903] [2024-11-08 14:52:28,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:52:28,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 14:52:28,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:52:28,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 14:52:28,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 14:52:28,574 INFO L87 Difference]: Start difference. First operand 575 states and 943 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:33,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:52:33,285 INFO L93 Difference]: Finished difference Result 1377 states and 2304 transitions. [2024-11-08 14:52:33,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 14:52:33,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2024-11-08 14:52:33,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:52:33,305 INFO L225 Difference]: With dead ends: 1377 [2024-11-08 14:52:33,305 INFO L226 Difference]: Without dead ends: 860 [2024-11-08 14:52:33,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-08 14:52:33,309 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 1976 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 4371 mSolverCounterSat, 520 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2058 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 4891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 520 IncrementalHoareTripleChecker+Valid, 4371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-08 14:52:33,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2058 Valid, 2689 Invalid, 4891 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [520 Valid, 4371 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-08 14:52:33,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-08 14:52:33,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 578. [2024-11-08 14:52:33,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 457 states have (on average 1.6455142231947484) internal successors, (752), 475 states have internal predecessors, (752), 95 states have call successors, (95), 24 states have call predecessors, (95), 25 states have return successors, (95), 91 states have call predecessors, (95), 90 states have call successors, (95) [2024-11-08 14:52:33,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 942 transitions. [2024-11-08 14:52:33,418 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 942 transitions. Word has length 100 [2024-11-08 14:52:33,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:52:33,418 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 942 transitions. [2024-11-08 14:52:33,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 942 transitions. [2024-11-08 14:52:33,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 14:52:33,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:52:33,422 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:52:33,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 14:52:33,423 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:52:33,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:52:33,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1244056236, now seen corresponding path program 1 times [2024-11-08 14:52:33,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:52:33,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081004185] [2024-11-08 14:52:33,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:52:33,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:52:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:33,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:52:33,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:33,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:33,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:52:33,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:33,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 14:52:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:34,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:34,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:52:34,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:34,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:52:34,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:34,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 14:52:34,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:34,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 14:52:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:34,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:52:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:34,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 14:52:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:34,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 14:52:34,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:52:34,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081004185] [2024-11-08 14:52:34,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081004185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 14:52:34,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801507221] [2024-11-08 14:52:34,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:52:34,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:52:34,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 14:52:34,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 14:52:34,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 14:52:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:34,537 INFO L255 TraceCheckSpWp]: Trace formula consists of 1419 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 14:52:34,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 14:52:34,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 14:52:34,569 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 14:52:34,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801507221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:52:34,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 14:52:34,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 14 [2024-11-08 14:52:34,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963069917] [2024-11-08 14:52:34,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:52:34,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 14:52:34,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:52:34,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 14:52:34,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:52:34,572 INFO L87 Difference]: Start difference. First operand 578 states and 942 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:34,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:52:34,896 INFO L93 Difference]: Finished difference Result 1548 states and 2583 transitions. [2024-11-08 14:52:34,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 14:52:34,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-11-08 14:52:34,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:52:34,905 INFO L225 Difference]: With dead ends: 1548 [2024-11-08 14:52:34,905 INFO L226 Difference]: Without dead ends: 1042 [2024-11-08 14:52:34,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-08 14:52:34,909 INFO L432 NwaCegarLoop]: 1010 mSDtfsCounter, 855 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 855 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 14:52:34,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [855 Valid, 1745 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 14:52:34,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2024-11-08 14:52:35,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 1027. [2024-11-08 14:52:35,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 807 states have (on average 1.630731102850062) internal successors, (1316), 838 states have internal predecessors, (1316), 173 states have call successors, (173), 43 states have call predecessors, (173), 46 states have return successors, (197), 171 states have call predecessors, (197), 168 states have call successors, (197) [2024-11-08 14:52:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1686 transitions. [2024-11-08 14:52:35,196 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1686 transitions. Word has length 104 [2024-11-08 14:52:35,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:52:35,197 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1686 transitions. [2024-11-08 14:52:35,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:35,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1686 transitions. [2024-11-08 14:52:35,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 14:52:35,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:52:35,202 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:52:35,218 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 14:52:35,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 14:52:35,403 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:52:35,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:52:35,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1046507554, now seen corresponding path program 1 times [2024-11-08 14:52:35,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:52:35,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577297981] [2024-11-08 14:52:35,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:52:35,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:52:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:35,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:52:35,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:35,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:35,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:52:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:36,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 14:52:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:36,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:36,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:52:36,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:36,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:52:36,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:36,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 14:52:36,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:36,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:52:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:36,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:52:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:36,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:52:36,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:36,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:52:36,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:52:36,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577297981] [2024-11-08 14:52:36,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577297981] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:52:36,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:52:36,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 14:52:36,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735306649] [2024-11-08 14:52:36,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:52:36,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 14:52:36,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:52:36,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 14:52:36,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:52:36,080 INFO L87 Difference]: Start difference. First operand 1027 states and 1686 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:52:42,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:52:42,076 INFO L93 Difference]: Finished difference Result 2456 states and 4114 transitions. [2024-11-08 14:52:42,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 14:52:42,076 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2024-11-08 14:52:42,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:52:42,087 INFO L225 Difference]: With dead ends: 2456 [2024-11-08 14:52:42,087 INFO L226 Difference]: Without dead ends: 1496 [2024-11-08 14:52:42,092 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-08 14:52:42,093 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 1079 mSDsluCounter, 2807 mSDsCounter, 0 mSdLazyCounter, 5439 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1160 SdHoareTripleChecker+Valid, 3292 SdHoareTripleChecker+Invalid, 5646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 5439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-08 14:52:42,093 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1160 Valid, 3292 Invalid, 5646 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [207 Valid, 5439 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-08 14:52:42,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2024-11-08 14:52:42,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1102. [2024-11-08 14:52:42,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 865 states have (on average 1.6289017341040462) internal successors, (1409), 898 states have internal predecessors, (1409), 186 states have call successors, (186), 43 states have call predecessors, (186), 50 states have return successors, (215), 184 states have call predecessors, (215), 181 states have call successors, (215) [2024-11-08 14:52:42,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1810 transitions. [2024-11-08 14:52:42,355 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1810 transitions. Word has length 105 [2024-11-08 14:52:42,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:52:42,355 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1810 transitions. [2024-11-08 14:52:42,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:52:42,356 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1810 transitions. [2024-11-08 14:52:42,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 14:52:42,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:52:42,360 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:52:42,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 14:52:42,361 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:52:42,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:52:42,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1598322943, now seen corresponding path program 1 times [2024-11-08 14:52:42,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:52:42,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674475383] [2024-11-08 14:52:42,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:52:42,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:52:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:42,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:52:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:42,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:42,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:52:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:42,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 14:52:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:42,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:42,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:52:42,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:42,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:52:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:42,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 14:52:42,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:42,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:52:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:42,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:52:42,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:42,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:52:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:52:42,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:52:42,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674475383] [2024-11-08 14:52:42,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674475383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:52:42,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:52:42,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:52:42,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234744915] [2024-11-08 14:52:42,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:52:42,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:52:42,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:52:42,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:52:42,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:52:42,941 INFO L87 Difference]: Start difference. First operand 1102 states and 1810 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:47,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:52:47,178 INFO L93 Difference]: Finished difference Result 2544 states and 4261 transitions. [2024-11-08 14:52:47,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:52:47,179 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-08 14:52:47,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:52:47,188 INFO L225 Difference]: With dead ends: 2544 [2024-11-08 14:52:47,188 INFO L226 Difference]: Without dead ends: 1504 [2024-11-08 14:52:47,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:52:47,194 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 1497 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 2883 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1577 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 3241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 2883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:52:47,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1577 Valid, 1815 Invalid, 3241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 2883 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-08 14:52:47,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2024-11-08 14:52:47,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1102. [2024-11-08 14:52:47,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 865 states have (on average 1.623121387283237) internal successors, (1404), 898 states have internal predecessors, (1404), 186 states have call successors, (186), 43 states have call predecessors, (186), 50 states have return successors, (215), 184 states have call predecessors, (215), 181 states have call successors, (215) [2024-11-08 14:52:47,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1805 transitions. [2024-11-08 14:52:47,490 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1805 transitions. Word has length 105 [2024-11-08 14:52:47,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:52:47,491 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1805 transitions. [2024-11-08 14:52:47,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:47,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1805 transitions. [2024-11-08 14:52:47,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 14:52:47,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:52:47,495 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:52:47,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 14:52:47,495 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:52:47,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:52:47,496 INFO L85 PathProgramCache]: Analyzing trace with hash -71448254, now seen corresponding path program 1 times [2024-11-08 14:52:47,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:52:47,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122932277] [2024-11-08 14:52:47,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:52:47,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:52:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:47,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:52:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:47,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:47,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:47,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:52:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:48,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 14:52:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:48,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:48,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:48,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:52:48,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:48,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:52:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:48,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 14:52:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:48,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:52:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:48,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:52:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:48,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:52:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:48,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:52:48,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:52:48,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122932277] [2024-11-08 14:52:48,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122932277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:52:48,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:52:48,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 14:52:48,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521483914] [2024-11-08 14:52:48,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:52:48,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 14:52:48,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:52:48,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 14:52:48,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:52:48,185 INFO L87 Difference]: Start difference. First operand 1102 states and 1805 transitions. Second operand has 10 states, 9 states have (on average 9.0) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:52:53,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:52:53,777 INFO L93 Difference]: Finished difference Result 2521 states and 4216 transitions. [2024-11-08 14:52:53,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 14:52:53,777 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2024-11-08 14:52:53,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:52:53,786 INFO L225 Difference]: With dead ends: 2521 [2024-11-08 14:52:53,786 INFO L226 Difference]: Without dead ends: 1496 [2024-11-08 14:52:53,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-08 14:52:53,791 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 1919 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 5114 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 3165 SdHoareTripleChecker+Invalid, 5616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 5114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-08 14:52:53,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 3165 Invalid, 5616 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [502 Valid, 5114 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-08 14:52:53,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2024-11-08 14:52:54,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1102. [2024-11-08 14:52:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 865 states have (on average 1.6219653179190752) internal successors, (1403), 898 states have internal predecessors, (1403), 186 states have call successors, (186), 43 states have call predecessors, (186), 50 states have return successors, (215), 184 states have call predecessors, (215), 181 states have call successors, (215) [2024-11-08 14:52:54,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1804 transitions. [2024-11-08 14:52:54,047 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1804 transitions. Word has length 106 [2024-11-08 14:52:54,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:52:54,048 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1804 transitions. [2024-11-08 14:52:54,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.0) internal successors, (81), 6 states have internal predecessors, (81), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-08 14:52:54,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1804 transitions. [2024-11-08 14:52:54,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 14:52:54,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:52:54,051 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:52:54,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 14:52:54,052 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:52:54,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:52:54,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1539547102, now seen corresponding path program 1 times [2024-11-08 14:52:54,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:52:54,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817488368] [2024-11-08 14:52:54,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:52:54,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:52:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:54,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:52:54,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:54,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:54,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:52:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:54,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 14:52:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:54,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:54,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:54,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:52:54,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:54,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:52:54,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:54,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 14:52:54,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:54,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:52:54,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:54,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:52:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:54,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:52:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:54,586 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:52:54,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:52:54,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817488368] [2024-11-08 14:52:54,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817488368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:52:54,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:52:54,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 14:52:54,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324985847] [2024-11-08 14:52:54,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:52:54,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 14:52:54,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:52:54,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 14:52:54,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 14:52:54,589 INFO L87 Difference]: Start difference. First operand 1102 states and 1804 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:58,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 14:52:58,808 INFO L93 Difference]: Finished difference Result 2544 states and 4252 transitions. [2024-11-08 14:52:58,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 14:52:58,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-11-08 14:52:58,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 14:52:58,816 INFO L225 Difference]: With dead ends: 2544 [2024-11-08 14:52:58,816 INFO L226 Difference]: Without dead ends: 1504 [2024-11-08 14:52:58,820 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 14:52:58,820 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 1059 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 2917 mSolverCounterSat, 212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1139 SdHoareTripleChecker+Valid, 1865 SdHoareTripleChecker+Invalid, 3129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 212 IncrementalHoareTripleChecker+Valid, 2917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-08 14:52:58,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1139 Valid, 1865 Invalid, 3129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [212 Valid, 2917 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-08 14:52:58,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1504 states. [2024-11-08 14:52:59,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1504 to 1102. [2024-11-08 14:52:59,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 865 states have (on average 1.6161849710982659) internal successors, (1398), 898 states have internal predecessors, (1398), 186 states have call successors, (186), 43 states have call predecessors, (186), 50 states have return successors, (215), 184 states have call predecessors, (215), 181 states have call successors, (215) [2024-11-08 14:52:59,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1799 transitions. [2024-11-08 14:52:59,031 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1799 transitions. Word has length 106 [2024-11-08 14:52:59,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 14:52:59,031 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1799 transitions. [2024-11-08 14:52:59,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 14:52:59,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1799 transitions. [2024-11-08 14:52:59,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 14:52:59,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 14:52:59,035 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 14:52:59,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 14:52:59,036 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 14:52:59,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 14:52:59,036 INFO L85 PathProgramCache]: Analyzing trace with hash -278858300, now seen corresponding path program 1 times [2024-11-08 14:52:59,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 14:52:59,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478209758] [2024-11-08 14:52:59,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 14:52:59,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 14:52:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:59,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 14:52:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:59,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:59,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 14:52:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:59,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 14:52:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:59,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 14:52:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:59,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 14:52:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:59,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 14:52:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:59,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 14:52:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:59,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 14:52:59,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:59,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 14:52:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:59,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 14:52:59,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 14:52:59,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 14:52:59,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 14:52:59,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478209758] [2024-11-08 14:52:59,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478209758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 14:52:59,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 14:52:59,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 14:52:59,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158539044] [2024-11-08 14:52:59,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 14:52:59,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 14:52:59,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 14:52:59,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 14:52:59,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 14:52:59,642 INFO L87 Difference]: Start difference. First operand 1102 states and 1799 transitions. Second operand has 10 states, 9 states have (on average 9.11111111111111) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)