./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f 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_spec13_product24.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 89950477a2818e2be847e3014c0e2f9e906834037b4e328723302699ed4d9564 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 20:25:02,879 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 20:25:02,934 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 20:25:02,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 20:25:02,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 20:25:02,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 20:25:02,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 20:25:02,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 20:25:02,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 20:25:02,990 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 20:25:02,990 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 20:25:03,011 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 20:25:03,013 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 20:25:03,013 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 20:25:03,013 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 20:25:03,014 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 20:25:03,014 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 20:25:03,014 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 20:25:03,014 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 20:25:03,014 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 20:25:03,015 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 20:25:03,018 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 20:25:03,019 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 20:25:03,019 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 20:25:03,019 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 20:25:03,019 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 20:25:03,019 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 20:25:03,019 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 20:25:03,020 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 20:25:03,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 20:25:03,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 20:25:03,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 20:25:03,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:25:03,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 20:25:03,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 20:25:03,021 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 20:25:03,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 20:25:03,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 20:25:03,021 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 20:25:03,022 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 20:25:03,022 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 20:25:03,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 20:25:03,024 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 89950477a2818e2be847e3014c0e2f9e906834037b4e328723302699ed4d9564 [2024-11-11 20:25:03,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 20:25:03,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 20:25:03,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 20:25:03,272 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 20:25:03,272 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 20:25:03,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c [2024-11-11 20:25:04,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 20:25:04,901 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 20:25:04,902 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c [2024-11-11 20:25:04,926 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2858f9d4c/e9e6666a5d0545a6b5fef09c94f445d3/FLAG072e89e6c [2024-11-11 20:25:04,941 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2858f9d4c/e9e6666a5d0545a6b5fef09c94f445d3 [2024-11-11 20:25:04,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 20:25:04,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 20:25:04,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 20:25:04,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 20:25:04,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 20:25:04,953 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:25:04" (1/1) ... [2024-11-11 20:25:04,954 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51291c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:04, skipping insertion in model container [2024-11-11 20:25:04,954 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:25:04" (1/1) ... [2024-11-11 20:25:05,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 20:25:05,442 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_spec13_product24.cil.c[51490,51503] [2024-11-11 20:25:05,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:25:05,483 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 20:25:05,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-11 20:25:05,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [414] [2024-11-11 20:25:05,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [434] [2024-11-11 20:25:05,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2095] [2024-11-11 20:25:05,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2449] [2024-11-11 20:25:05,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2458] [2024-11-11 20:25:05,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2549] [2024-11-11 20:25:05,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification13_spec.i","") [3210] [2024-11-11 20:25:05,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3299] [2024-11-11 20:25:05,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3417] [2024-11-11 20:25:05,581 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec13_product24.cil.c[51490,51503] [2024-11-11 20:25:05,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:25:05,619 INFO L204 MainTranslator]: Completed translation [2024-11-11 20:25:05,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05 WrapperNode [2024-11-11 20:25:05,620 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 20:25:05,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 20:25:05,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 20:25:05,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 20:25:05,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (1/1) ... [2024-11-11 20:25:05,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (1/1) ... [2024-11-11 20:25:05,703 INFO L138 Inliner]: procedures = 96, calls = 352, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 893 [2024-11-11 20:25:05,703 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 20:25:05,704 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 20:25:05,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 20:25:05,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 20:25:05,722 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (1/1) ... [2024-11-11 20:25:05,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (1/1) ... [2024-11-11 20:25:05,729 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (1/1) ... [2024-11-11 20:25:05,769 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 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]. [2024-11-11 20:25:05,770 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (1/1) ... [2024-11-11 20:25:05,770 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (1/1) ... [2024-11-11 20:25:05,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (1/1) ... [2024-11-11 20:25:05,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (1/1) ... [2024-11-11 20:25:05,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (1/1) ... [2024-11-11 20:25:05,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (1/1) ... [2024-11-11 20:25:05,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 20:25:05,846 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 20:25:05,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 20:25:05,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 20:25:05,846 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (1/1) ... [2024-11-11 20:25:05,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:25:05,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:05,878 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) [2024-11-11 20:25:05,880 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 [2024-11-11 20:25:05,914 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2024-11-11 20:25:05,914 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2024-11-11 20:25:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 20:25:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-11 20:25:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-11-11 20:25:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-11-11 20:25:05,915 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-11-11 20:25:05,915 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-11 20:25:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-11 20:25:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2024-11-11 20:25:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2024-11-11 20:25:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-11 20:25:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-11 20:25:05,916 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-11 20:25:05,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-11 20:25:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-11 20:25:05,917 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-11 20:25:05,917 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-11 20:25:05,917 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-11 20:25:05,918 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-11 20:25:05,918 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-11 20:25:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-11 20:25:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-11 20:25:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-11 20:25:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-11 20:25:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-11 20:25:05,919 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-11 20:25:05,919 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-11 20:25:05,920 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-11 20:25:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-11 20:25:05,920 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-11 20:25:05,920 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-11 20:25:05,921 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-11 20:25:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-11 20:25:05,921 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-11 20:25:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-11 20:25:05,921 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-11 20:25:05,921 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-11 20:25:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-11 20:25:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-11 20:25:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-11 20:25:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-11 20:25:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-11 20:25:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-11 20:25:05,922 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-11 20:25:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 20:25:05,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 20:25:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 20:25:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 20:25:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-11 20:25:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-11 20:25:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-11 20:25:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-11 20:25:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-11 20:25:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-11 20:25:05,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-11 20:25:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-11 20:25:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-11 20:25:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-11 20:25:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-11 20:25:05,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-11 20:25:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-11 20:25:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-11 20:25:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-11 20:25:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-11 20:25:05,925 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-11 20:25:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-11 20:25:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-11 20:25:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-11 20:25:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-11 20:25:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-11 20:25:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-11 20:25:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-11 20:25:05,926 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2024-11-11 20:25:05,926 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2024-11-11 20:25:05,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 20:25:05,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 20:25:05,927 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-11 20:25:05,927 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-11 20:25:05,927 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2024-11-11 20:25:05,927 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2024-11-11 20:25:06,126 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 20:25:06,128 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 20:25:07,143 INFO L? ?]: Removed 486 outVars from TransFormulas that were not future-live. [2024-11-11 20:25:07,143 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 20:25:07,174 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 20:25:07,175 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-11 20:25:07,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:25:07 BoogieIcfgContainer [2024-11-11 20:25:07,175 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 20:25:07,177 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 20:25:07,177 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 20:25:07,181 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 20:25:07,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 08:25:04" (1/3) ... [2024-11-11 20:25:07,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685e3653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:25:07, skipping insertion in model container [2024-11-11 20:25:07,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:25:05" (2/3) ... [2024-11-11 20:25:07,182 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685e3653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:25:07, skipping insertion in model container [2024-11-11 20:25:07,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:25:07" (3/3) ... [2024-11-11 20:25:07,184 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec13_product24.cil.c [2024-11-11 20:25:07,200 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 20:25:07,201 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 20:25:07,267 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 20:25:07,275 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;@237849a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 20:25:07,275 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 20:25:07,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 628 states, 487 states have (on average 1.6714579055441479) internal successors, (814), 507 states have internal predecessors, (814), 110 states have call successors, (110), 29 states have call predecessors, (110), 29 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-11 20:25:07,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-11 20:25:07,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:07,317 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:07,318 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:07,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:07,324 INFO L85 PathProgramCache]: Analyzing trace with hash -731590995, now seen corresponding path program 1 times [2024-11-11 20:25:07,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:07,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321595776] [2024-11-11 20:25:07,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:07,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:07,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:07,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:08,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 20:25:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:08,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:25:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:08,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:08,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:08,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 20:25:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:08,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:08,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:25:08,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:08,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:25:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:08,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:25:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:08,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-11 20:25:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:08,427 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:25:08,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:08,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321595776] [2024-11-11 20:25:08,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321595776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:08,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489823091] [2024-11-11 20:25:08,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:08,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:08,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:08,433 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) [2024-11-11 20:25:08,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 20:25:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:08,791 INFO L256 TraceCheckSpWp]: Trace formula consists of 1503 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:25:08,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:08,874 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-11 20:25:08,875 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:08,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489823091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:08,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:08,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-11 20:25:08,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058489683] [2024-11-11 20:25:08,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:08,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:25:08,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:08,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:25:08,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:25:08,914 INFO L87 Difference]: Start difference. First operand has 628 states, 487 states have (on average 1.6714579055441479) internal successors, (814), 507 states have internal predecessors, (814), 110 states have call successors, (110), 29 states have call predecessors, (110), 29 states have return successors, (110), 106 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-11 20:25:09,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:09,107 INFO L93 Difference]: Finished difference Result 1255 states and 2084 transitions. [2024-11-11 20:25:09,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:25:09,113 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2024-11-11 20:25:09,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:09,136 INFO L225 Difference]: With dead ends: 1255 [2024-11-11 20:25:09,136 INFO L226 Difference]: Without dead ends: 627 [2024-11-11 20:25:09,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:25:09,151 INFO L435 NwaCegarLoop]: 1009 mSDtfsCounter, 17 mSDsluCounter, 2010 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:09,152 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3019 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:25:09,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2024-11-11 20:25:09,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 627. [2024-11-11 20:25:09,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 488 states have (on average 1.6557377049180328) internal successors, (808), 506 states have internal predecessors, (808), 110 states have call successors, (110), 30 states have call predecessors, (110), 28 states have return successors, (107), 104 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-11 20:25:09,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 1025 transitions. [2024-11-11 20:25:09,255 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 1025 transitions. Word has length 99 [2024-11-11 20:25:09,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:09,259 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 1025 transitions. [2024-11-11 20:25:09,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-11 20:25:09,259 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 1025 transitions. [2024-11-11 20:25:09,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-11 20:25:09,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:09,272 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:09,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-11 20:25:09,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-11 20:25:09,474 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:09,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:09,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1075025858, now seen corresponding path program 1 times [2024-11-11 20:25:09,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:09,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448932561] [2024-11-11 20:25:09,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:09,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:09,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:09,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:09,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:25:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:09,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:25:09,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:09,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:09,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:09,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:25:09,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:09,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 20:25:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:10,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:25:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:10,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:25:10,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:10,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:25:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:10,021 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:25:10,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:10,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448932561] [2024-11-11 20:25:10,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448932561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:10,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368483744] [2024-11-11 20:25:10,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:10,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:10,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:10,028 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:10,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-11 20:25:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:10,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 20:25:10,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-11 20:25:10,413 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:10,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368483744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:10,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:10,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-11 20:25:10,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18265163] [2024-11-11 20:25:10,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:10,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:25:10,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:10,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:25:10,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:25:10,419 INFO L87 Difference]: Start difference. First operand 627 states and 1025 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:10,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:10,587 INFO L93 Difference]: Finished difference Result 1260 states and 2064 transitions. [2024-11-11 20:25:10,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:25:10,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 85 [2024-11-11 20:25:10,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:10,593 INFO L225 Difference]: With dead ends: 1260 [2024-11-11 20:25:10,594 INFO L226 Difference]: Without dead ends: 643 [2024-11-11 20:25:10,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-11 20:25:10,598 INFO L435 NwaCegarLoop]: 998 mSDtfsCounter, 90 mSDsluCounter, 4898 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 5896 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:10,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 5896 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:25:10,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2024-11-11 20:25:10,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 640. [2024-11-11 20:25:10,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 498 states have (on average 1.6526104417670682) internal successors, (823), 518 states have internal predecessors, (823), 111 states have call successors, (111), 30 states have call predecessors, (111), 30 states have return successors, (113), 105 states have call predecessors, (113), 108 states have call successors, (113) [2024-11-11 20:25:10,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 1047 transitions. [2024-11-11 20:25:10,643 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 1047 transitions. Word has length 85 [2024-11-11 20:25:10,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:10,644 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 1047 transitions. [2024-11-11 20:25:10,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:10,645 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 1047 transitions. [2024-11-11 20:25:10,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 20:25:10,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:10,648 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:10,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-11 20:25:10,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-11 20:25:10,849 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:10,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:10,850 INFO L85 PathProgramCache]: Analyzing trace with hash 766490068, now seen corresponding path program 1 times [2024-11-11 20:25:10,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:10,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454978303] [2024-11-11 20:25:10,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:10,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:11,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:25:11,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:25:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:11,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:25:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 20:25:11,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:25:11,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:25:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:25:11,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:25:11,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,384 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-11 20:25:11,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:11,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454978303] [2024-11-11 20:25:11,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454978303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:11,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102092281] [2024-11-11 20:25:11,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:11,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:11,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:11,390 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:11,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-11 20:25:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:11,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 20:25:11,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:11,722 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:25:11,722 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:11,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102092281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:11,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:11,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-11 20:25:11,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636700667] [2024-11-11 20:25:11,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:11,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:25:11,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:11,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:25:11,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:25:11,724 INFO L87 Difference]: Start difference. First operand 640 states and 1047 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-11 20:25:11,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:11,817 INFO L93 Difference]: Finished difference Result 1280 states and 2097 transitions. [2024-11-11 20:25:11,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:25:11,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 102 [2024-11-11 20:25:11,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:11,821 INFO L225 Difference]: With dead ends: 1280 [2024-11-11 20:25:11,821 INFO L226 Difference]: Without dead ends: 652 [2024-11-11 20:25:11,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:25:11,824 INFO L435 NwaCegarLoop]: 998 mSDtfsCounter, 101 mSDsluCounter, 4886 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 5884 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:11,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 5884 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:25:11,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2024-11-11 20:25:11,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 640. [2024-11-11 20:25:11,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 498 states have (on average 1.6526104417670682) internal successors, (823), 518 states have internal predecessors, (823), 111 states have call successors, (111), 30 states have call predecessors, (111), 30 states have return successors, (113), 105 states have call predecessors, (113), 108 states have call successors, (113) [2024-11-11 20:25:11,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 1047 transitions. [2024-11-11 20:25:11,848 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 1047 transitions. Word has length 102 [2024-11-11 20:25:11,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:11,849 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 1047 transitions. [2024-11-11 20:25:11,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-11 20:25:11,849 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 1047 transitions. [2024-11-11 20:25:11,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-11 20:25:11,851 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:11,851 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:11,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-11 20:25:12,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:12,056 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:12,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:12,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2018362282, now seen corresponding path program 1 times [2024-11-11 20:25:12,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:12,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874260413] [2024-11-11 20:25:12,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:12,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:12,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:25:12,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:25:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:25:12,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 20:25:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:25:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:25:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:25:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:25:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,472 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:25:12,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:12,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874260413] [2024-11-11 20:25:12,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874260413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:12,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439974017] [2024-11-11 20:25:12,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:12,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:12,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:12,474 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:12,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-11 20:25:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:12,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 1506 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:25:12,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-11 20:25:12,909 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:12,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439974017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:12,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:12,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-11 20:25:12,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059046998] [2024-11-11 20:25:12,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:12,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:25:12,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:12,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:25:12,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 20:25:12,911 INFO L87 Difference]: Start difference. First operand 640 states and 1047 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-11 20:25:12,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:12,989 INFO L93 Difference]: Finished difference Result 1283 states and 2100 transitions. [2024-11-11 20:25:12,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:25:12,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2024-11-11 20:25:12,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:12,996 INFO L225 Difference]: With dead ends: 1283 [2024-11-11 20:25:12,996 INFO L226 Difference]: Without dead ends: 651 [2024-11-11 20:25:13,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:25:13,001 INFO L435 NwaCegarLoop]: 999 mSDtfsCounter, 12 mSDsluCounter, 1989 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:13,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2988 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:25:13,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2024-11-11 20:25:13,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 649. [2024-11-11 20:25:13,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 506 states have (on average 1.6442687747035574) internal successors, (832), 526 states have internal predecessors, (832), 111 states have call successors, (111), 31 states have call predecessors, (111), 31 states have return successors, (112), 105 states have call predecessors, (112), 108 states have call successors, (112) [2024-11-11 20:25:13,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1055 transitions. [2024-11-11 20:25:13,034 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1055 transitions. Word has length 102 [2024-11-11 20:25:13,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:13,034 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 1055 transitions. [2024-11-11 20:25:13,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-11 20:25:13,034 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1055 transitions. [2024-11-11 20:25:13,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-11 20:25:13,037 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:13,037 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:13,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-11 20:25:13,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:13,242 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:13,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:13,243 INFO L85 PathProgramCache]: Analyzing trace with hash 2076986494, now seen corresponding path program 1 times [2024-11-11 20:25:13,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:13,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460556681] [2024-11-11 20:25:13,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:13,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:13,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:13,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:13,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:25:13,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:13,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 20:25:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:13,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:13,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:25:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:13,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 20:25:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:13,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:25:13,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:13,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:25:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:13,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:25:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:13,469 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 20:25:13,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:13,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460556681] [2024-11-11 20:25:13,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460556681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:13,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118662015] [2024-11-11 20:25:13,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:13,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:13,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:13,471 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:13,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-11 20:25:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:13,691 INFO L256 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 20:25:13,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:13,759 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-11 20:25:13,760 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:13,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118662015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:13,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:13,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-11-11 20:25:13,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866040556] [2024-11-11 20:25:13,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:13,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:25:13,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:13,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:25:13,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:25:13,762 INFO L87 Difference]: Start difference. First operand 649 states and 1055 transitions. Second operand has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:13,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:13,851 INFO L93 Difference]: Finished difference Result 1289 states and 2100 transitions. [2024-11-11 20:25:13,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:25:13,852 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 87 [2024-11-11 20:25:13,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:13,855 INFO L225 Difference]: With dead ends: 1289 [2024-11-11 20:25:13,855 INFO L226 Difference]: Without dead ends: 663 [2024-11-11 20:25:13,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:25:13,858 INFO L435 NwaCegarLoop]: 998 mSDtfsCounter, 112 mSDsluCounter, 4874 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 5872 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:13,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 5872 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:25:13,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2024-11-11 20:25:13,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 649. [2024-11-11 20:25:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 506 states have (on average 1.6442687747035574) internal successors, (832), 526 states have internal predecessors, (832), 111 states have call successors, (111), 31 states have call predecessors, (111), 31 states have return successors, (112), 105 states have call predecessors, (112), 108 states have call successors, (112) [2024-11-11 20:25:13,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1055 transitions. [2024-11-11 20:25:13,876 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1055 transitions. Word has length 87 [2024-11-11 20:25:13,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:13,876 INFO L471 AbstractCegarLoop]: Abstraction has 649 states and 1055 transitions. [2024-11-11 20:25:13,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:13,876 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1055 transitions. [2024-11-11 20:25:13,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-11 20:25:13,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:13,877 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:13,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-11 20:25:14,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:14,080 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:14,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:14,080 INFO L85 PathProgramCache]: Analyzing trace with hash 116005712, now seen corresponding path program 1 times [2024-11-11 20:25:14,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:14,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048631322] [2024-11-11 20:25:14,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:14,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:14,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:25:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 20:25:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:25:14,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 20:25:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:25:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:25:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-11 20:25:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:25:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:25:14,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:14,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048631322] [2024-11-11 20:25:14,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048631322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:14,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573603456] [2024-11-11 20:25:14,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:14,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:14,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:14,562 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:14,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-11 20:25:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:14,864 INFO L256 TraceCheckSpWp]: Trace formula consists of 1508 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:25:14,867 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:25:14,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:14,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573603456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:14,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:14,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-11-11 20:25:14,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466093837] [2024-11-11 20:25:14,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:14,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:25:14,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:14,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:25:14,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:25:14,898 INFO L87 Difference]: Start difference. First operand 649 states and 1055 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-11 20:25:15,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:15,148 INFO L93 Difference]: Finished difference Result 1347 states and 2211 transitions. [2024-11-11 20:25:15,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:25:15,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 104 [2024-11-11 20:25:15,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:15,153 INFO L225 Difference]: With dead ends: 1347 [2024-11-11 20:25:15,153 INFO L226 Difference]: Without dead ends: 721 [2024-11-11 20:25:15,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:25:15,163 INFO L435 NwaCegarLoop]: 985 mSDtfsCounter, 119 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 2878 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:15,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 2878 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-11 20:25:15,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-11 20:25:15,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 694. [2024-11-11 20:25:15,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 550 states have (on average 1.6654545454545455) internal successors, (916), 570 states have internal predecessors, (916), 111 states have call successors, (111), 32 states have call predecessors, (111), 32 states have return successors, (111), 105 states have call predecessors, (111), 108 states have call successors, (111) [2024-11-11 20:25:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1138 transitions. [2024-11-11 20:25:15,201 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1138 transitions. Word has length 104 [2024-11-11 20:25:15,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:15,202 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 1138 transitions. [2024-11-11 20:25:15,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-11 20:25:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1138 transitions. [2024-11-11 20:25:15,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-11 20:25:15,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:15,204 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:15,220 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-11 20:25:15,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:15,405 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:15,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:15,406 INFO L85 PathProgramCache]: Analyzing trace with hash -647776688, now seen corresponding path program 1 times [2024-11-11 20:25:15,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:15,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078571189] [2024-11-11 20:25:15,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:15,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:15,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:15,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:15,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:25:15,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:15,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-11 20:25:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:15,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:15,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:25:15,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:15,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 20:25:15,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:15,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-11 20:25:15,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:15,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:25:15,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:15,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:25:15,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:15,793 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 20:25:15,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:15,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078571189] [2024-11-11 20:25:15,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078571189] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:15,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818610478] [2024-11-11 20:25:15,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:15,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:15,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:15,799 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:15,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-11 20:25:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:16,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 20:25:16,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:16,083 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-11 20:25:16,083 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:16,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818610478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:16,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:16,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-11 20:25:16,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060034751] [2024-11-11 20:25:16,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:16,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:25:16,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:16,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:25:16,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:25:16,084 INFO L87 Difference]: Start difference. First operand 694 states and 1138 transitions. Second operand has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:16,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:16,216 INFO L93 Difference]: Finished difference Result 1391 states and 2283 transitions. [2024-11-11 20:25:16,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:25:16,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 89 [2024-11-11 20:25:16,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:16,221 INFO L225 Difference]: With dead ends: 1391 [2024-11-11 20:25:16,221 INFO L226 Difference]: Without dead ends: 720 [2024-11-11 20:25:16,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-11 20:25:16,224 INFO L435 NwaCegarLoop]: 988 mSDtfsCounter, 95 mSDsluCounter, 5831 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 6819 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:16,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 6819 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:25:16,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-11 20:25:16,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 694. [2024-11-11 20:25:16,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 550 states have (on average 1.6654545454545455) internal successors, (916), 570 states have internal predecessors, (916), 111 states have call successors, (111), 32 states have call predecessors, (111), 32 states have return successors, (111), 105 states have call predecessors, (111), 108 states have call successors, (111) [2024-11-11 20:25:16,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1138 transitions. [2024-11-11 20:25:16,243 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1138 transitions. Word has length 89 [2024-11-11 20:25:16,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:16,243 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 1138 transitions. [2024-11-11 20:25:16,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:16,244 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1138 transitions. [2024-11-11 20:25:16,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-11 20:25:16,245 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:16,245 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:16,261 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-11 20:25:16,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:16,446 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:16,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:16,446 INFO L85 PathProgramCache]: Analyzing trace with hash -794317395, now seen corresponding path program 1 times [2024-11-11 20:25:16,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:16,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271685525] [2024-11-11 20:25:16,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:16,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:16,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:16,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:16,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:25:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:16,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-11 20:25:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:16,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:16,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:25:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:16,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-11 20:25:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:16,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-11 20:25:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:16,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:25:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:16,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:25:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:16,668 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 20:25:16,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:16,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271685525] [2024-11-11 20:25:16,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271685525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:16,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501350449] [2024-11-11 20:25:16,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:16,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:16,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:16,671 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:16,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-11 20:25:16,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:16,922 INFO L256 TraceCheckSpWp]: Trace formula consists of 1262 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 20:25:16,924 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:16,987 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-11 20:25:16,988 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:16,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501350449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:16,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:16,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-11 20:25:16,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003798899] [2024-11-11 20:25:16,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:16,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:25:16,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:16,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:25:16,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:25:16,989 INFO L87 Difference]: Start difference. First operand 694 states and 1138 transitions. Second operand has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:17,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:17,116 INFO L93 Difference]: Finished difference Result 1391 states and 2283 transitions. [2024-11-11 20:25:17,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:25:17,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 90 [2024-11-11 20:25:17,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:17,121 INFO L225 Difference]: With dead ends: 1391 [2024-11-11 20:25:17,121 INFO L226 Difference]: Without dead ends: 720 [2024-11-11 20:25:17,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-11 20:25:17,123 INFO L435 NwaCegarLoop]: 988 mSDtfsCounter, 105 mSDsluCounter, 5819 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 6807 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:17,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 6807 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:25:17,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-11 20:25:17,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 694. [2024-11-11 20:25:17,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 550 states have (on average 1.6654545454545455) internal successors, (916), 570 states have internal predecessors, (916), 111 states have call successors, (111), 32 states have call predecessors, (111), 32 states have return successors, (111), 105 states have call predecessors, (111), 108 states have call successors, (111) [2024-11-11 20:25:17,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1138 transitions. [2024-11-11 20:25:17,140 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1138 transitions. Word has length 90 [2024-11-11 20:25:17,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:17,140 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 1138 transitions. [2024-11-11 20:25:17,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:17,140 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1138 transitions. [2024-11-11 20:25:17,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-11 20:25:17,141 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:17,142 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:17,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-11 20:25:17,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-11 20:25:17,343 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:17,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:17,343 INFO L85 PathProgramCache]: Analyzing trace with hash 212470965, now seen corresponding path program 1 times [2024-11-11 20:25:17,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:17,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819501366] [2024-11-11 20:25:17,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:17,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:17,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:17,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:25:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:17,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:17,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:17,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:17,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:25:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:17,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:25:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:17,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:25:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:17,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:25:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:17,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:25:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:17,567 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 20:25:17,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:17,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819501366] [2024-11-11 20:25:17,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819501366] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:17,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305467738] [2024-11-11 20:25:17,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:17,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:17,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:17,572 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:17,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-11 20:25:17,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:17,773 INFO L256 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 20:25:17,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:17,847 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-11 20:25:17,847 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:17,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305467738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:17,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:17,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-11 20:25:17,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807106076] [2024-11-11 20:25:17,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:17,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:25:17,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:17,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:25:17,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-11 20:25:17,849 INFO L87 Difference]: Start difference. First operand 694 states and 1138 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:17,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:17,977 INFO L93 Difference]: Finished difference Result 1382 states and 2268 transitions. [2024-11-11 20:25:17,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:25:17,977 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 91 [2024-11-11 20:25:17,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:17,982 INFO L225 Difference]: With dead ends: 1382 [2024-11-11 20:25:17,982 INFO L226 Difference]: Without dead ends: 711 [2024-11-11 20:25:17,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-11 20:25:17,986 INFO L435 NwaCegarLoop]: 988 mSDtfsCounter, 115 mSDsluCounter, 5807 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 6795 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:17,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 6795 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:25:17,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2024-11-11 20:25:17,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 694. [2024-11-11 20:25:17,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 550 states have (on average 1.6654545454545455) internal successors, (916), 570 states have internal predecessors, (916), 111 states have call successors, (111), 32 states have call predecessors, (111), 32 states have return successors, (111), 105 states have call predecessors, (111), 108 states have call successors, (111) [2024-11-11 20:25:18,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1138 transitions. [2024-11-11 20:25:18,003 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1138 transitions. Word has length 91 [2024-11-11 20:25:18,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:18,003 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 1138 transitions. [2024-11-11 20:25:18,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:18,004 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1138 transitions. [2024-11-11 20:25:18,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-11 20:25:18,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:18,005 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:18,021 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-11 20:25:18,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:18,206 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:18,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:18,207 INFO L85 PathProgramCache]: Analyzing trace with hash 986364010, now seen corresponding path program 1 times [2024-11-11 20:25:18,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:18,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44348776] [2024-11-11 20:25:18,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:18,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:25:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 20:25:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:25:18,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,625 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:25:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-11 20:25:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:25:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-11 20:25:18,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:18,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44348776] [2024-11-11 20:25:18,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44348776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:18,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850219133] [2024-11-11 20:25:18,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:18,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:18,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:18,632 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:18,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-11 20:25:18,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:18,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 1510 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:25:18,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:18,891 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-11 20:25:18,891 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:18,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850219133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:18,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:18,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-11 20:25:18,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605740961] [2024-11-11 20:25:18,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:18,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:25:18,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:18,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:25:18,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:25:18,893 INFO L87 Difference]: Start difference. First operand 694 states and 1138 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-11 20:25:18,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:18,936 INFO L93 Difference]: Finished difference Result 1354 states and 2228 transitions. [2024-11-11 20:25:18,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:25:18,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 107 [2024-11-11 20:25:18,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:18,940 INFO L225 Difference]: With dead ends: 1354 [2024-11-11 20:25:18,940 INFO L226 Difference]: Without dead ends: 694 [2024-11-11 20:25:18,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:25:18,942 INFO L435 NwaCegarLoop]: 996 mSDtfsCounter, 20 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:18,942 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2982 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:25:18,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-11-11 20:25:18,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 694. [2024-11-11 20:25:18,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 550 states have (on average 1.6563636363636363) internal successors, (911), 570 states have internal predecessors, (911), 111 states have call successors, (111), 32 states have call predecessors, (111), 32 states have return successors, (111), 105 states have call predecessors, (111), 108 states have call successors, (111) [2024-11-11 20:25:18,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1133 transitions. [2024-11-11 20:25:18,957 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1133 transitions. Word has length 107 [2024-11-11 20:25:18,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:18,957 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 1133 transitions. [2024-11-11 20:25:18,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-11 20:25:18,957 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1133 transitions. [2024-11-11 20:25:18,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-11 20:25:18,959 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:18,959 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:18,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-11 20:25:19,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-11 20:25:19,160 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:19,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:19,160 INFO L85 PathProgramCache]: Analyzing trace with hash -484653252, now seen corresponding path program 1 times [2024-11-11 20:25:19,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:19,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652182202] [2024-11-11 20:25:19,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:19,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:19,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:19,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:19,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:19,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:19,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:19,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:25:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:19,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:25:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:19,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:25:19,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:19,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:25:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:19,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 20:25:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:19,385 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-11 20:25:19,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:19,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652182202] [2024-11-11 20:25:19,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652182202] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:19,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213300099] [2024-11-11 20:25:19,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:19,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:19,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:19,387 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:19,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-11 20:25:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:19,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 1267 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 20:25:19,599 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 20:25:19,662 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:19,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213300099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:19,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:19,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2024-11-11 20:25:19,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338316961] [2024-11-11 20:25:19,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:19,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:25:19,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:19,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:25:19,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:25:19,664 INFO L87 Difference]: Start difference. First operand 694 states and 1133 transitions. Second operand has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:19,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:19,742 INFO L93 Difference]: Finished difference Result 1322 states and 2160 transitions. [2024-11-11 20:25:19,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:25:19,743 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 92 [2024-11-11 20:25:19,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:19,747 INFO L225 Difference]: With dead ends: 1322 [2024-11-11 20:25:19,747 INFO L226 Difference]: Without dead ends: 720 [2024-11-11 20:25:19,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-11 20:25:19,750 INFO L435 NwaCegarLoop]: 1001 mSDtfsCounter, 90 mSDsluCounter, 4915 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 5916 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:19,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 5916 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:25:19,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-11 20:25:19,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 707. [2024-11-11 20:25:19,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 560 states have (on average 1.6535714285714285) internal successors, (926), 582 states have internal predecessors, (926), 112 states have call successors, (112), 32 states have call predecessors, (112), 34 states have return successors, (116), 106 states have call predecessors, (116), 109 states have call successors, (116) [2024-11-11 20:25:19,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1154 transitions. [2024-11-11 20:25:19,766 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1154 transitions. Word has length 92 [2024-11-11 20:25:19,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:19,766 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 1154 transitions. [2024-11-11 20:25:19,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:19,767 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1154 transitions. [2024-11-11 20:25:19,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-11 20:25:19,769 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:19,769 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:19,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-11 20:25:19,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-11 20:25:19,973 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:19,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:19,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2033236358, now seen corresponding path program 1 times [2024-11-11 20:25:19,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:19,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109233535] [2024-11-11 20:25:19,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:19,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:25:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:25:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:20,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:25:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:25:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-11 20:25:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:25:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,505 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:25:20,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:20,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109233535] [2024-11-11 20:25:20,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109233535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:20,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111644805] [2024-11-11 20:25:20,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:20,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:20,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:20,508 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:20,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-11 20:25:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:20,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 1512 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 20:25:20,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:20,796 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-11 20:25:20,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:20,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111644805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:20,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:20,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2024-11-11 20:25:20,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950828864] [2024-11-11 20:25:20,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:20,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:25:20,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:20,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:25:20,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-11-11 20:25:20,798 INFO L87 Difference]: Start difference. First operand 707 states and 1154 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-11 20:25:20,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:20,871 INFO L93 Difference]: Finished difference Result 1331 states and 2175 transitions. [2024-11-11 20:25:20,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:25:20,871 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 109 [2024-11-11 20:25:20,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:20,874 INFO L225 Difference]: With dead ends: 1331 [2024-11-11 20:25:20,874 INFO L226 Difference]: Without dead ends: 729 [2024-11-11 20:25:20,876 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:25:20,877 INFO L435 NwaCegarLoop]: 1001 mSDtfsCounter, 101 mSDsluCounter, 4903 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 5904 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:20,877 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 5904 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:25:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-11 20:25:20,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 707. [2024-11-11 20:25:20,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 560 states have (on average 1.6535714285714285) internal successors, (926), 582 states have internal predecessors, (926), 112 states have call successors, (112), 32 states have call predecessors, (112), 34 states have return successors, (116), 106 states have call predecessors, (116), 109 states have call successors, (116) [2024-11-11 20:25:20,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1154 transitions. [2024-11-11 20:25:20,891 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1154 transitions. Word has length 109 [2024-11-11 20:25:20,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:20,892 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 1154 transitions. [2024-11-11 20:25:20,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-11 20:25:20,892 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1154 transitions. [2024-11-11 20:25:20,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-11 20:25:20,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:20,893 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:20,908 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-11 20:25:21,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-11 20:25:21,095 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:21,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:21,095 INFO L85 PathProgramCache]: Analyzing trace with hash -797206217, now seen corresponding path program 1 times [2024-11-11 20:25:21,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:21,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625761108] [2024-11-11 20:25:21,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:21,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:21,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:21,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:25:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 20:25:21,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:25:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:25:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:25:21,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,261 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-11 20:25:21,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:21,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625761108] [2024-11-11 20:25:21,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625761108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:21,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1107254301] [2024-11-11 20:25:21,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:21,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:21,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:21,263 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:21,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-11 20:25:21,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 1268 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:25:21,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:21,487 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-11 20:25:21,487 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:21,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1107254301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:21,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:21,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-11 20:25:21,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885829355] [2024-11-11 20:25:21,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:21,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:25:21,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:21,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:25:21,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 20:25:21,489 INFO L87 Difference]: Start difference. First operand 707 states and 1154 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:25:21,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:21,540 INFO L93 Difference]: Finished difference Result 1376 states and 2258 transitions. [2024-11-11 20:25:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 20:25:21,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 93 [2024-11-11 20:25:21,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:21,547 INFO L225 Difference]: With dead ends: 1376 [2024-11-11 20:25:21,547 INFO L226 Difference]: Without dead ends: 707 [2024-11-11 20:25:21,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-11 20:25:21,550 INFO L435 NwaCegarLoop]: 1000 mSDtfsCounter, 2 mSDsluCounter, 1991 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2991 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:21,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2991 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:25:21,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-11-11 20:25:21,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2024-11-11 20:25:21,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 560 states have (on average 1.6482142857142856) internal successors, (923), 582 states have internal predecessors, (923), 112 states have call successors, (112), 32 states have call predecessors, (112), 34 states have return successors, (116), 106 states have call predecessors, (116), 109 states have call successors, (116) [2024-11-11 20:25:21,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 1151 transitions. [2024-11-11 20:25:21,570 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 1151 transitions. Word has length 93 [2024-11-11 20:25:21,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:21,571 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 1151 transitions. [2024-11-11 20:25:21,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-11 20:25:21,571 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 1151 transitions. [2024-11-11 20:25:21,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-11 20:25:21,573 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:21,573 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:21,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-11 20:25:21,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-11 20:25:21,774 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:21,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:21,775 INFO L85 PathProgramCache]: Analyzing trace with hash -595731433, now seen corresponding path program 1 times [2024-11-11 20:25:21,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:21,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37650765] [2024-11-11 20:25:21,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:21,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:21,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:22,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:22,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:25:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:22,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:25:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:22,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:22,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:25:22,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:22,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-11 20:25:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:22,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-11 20:25:22,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:22,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:25:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:22,288 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:25:22,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:22,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37650765] [2024-11-11 20:25:22,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37650765] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:22,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024117413] [2024-11-11 20:25:22,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:22,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:22,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:22,289 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:22,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-11 20:25:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:22,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 1513 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:25:22,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:22,588 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-11 20:25:22,588 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:22,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024117413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:22,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:22,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-11 20:25:22,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535264651] [2024-11-11 20:25:22,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:22,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 20:25:22,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:22,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 20:25:22,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:25:22,590 INFO L87 Difference]: Start difference. First operand 707 states and 1151 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-11 20:25:22,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:22,724 INFO L93 Difference]: Finished difference Result 1405 states and 2304 transitions. [2024-11-11 20:25:22,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:25:22,725 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 110 [2024-11-11 20:25:22,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:22,729 INFO L225 Difference]: With dead ends: 1405 [2024-11-11 20:25:22,729 INFO L226 Difference]: Without dead ends: 803 [2024-11-11 20:25:22,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:25:22,732 INFO L435 NwaCegarLoop]: 957 mSDtfsCounter, 167 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:22,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 2842 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:25:22,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2024-11-11 20:25:22,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 752. [2024-11-11 20:25:22,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 604 states have (on average 1.6672185430463575) internal successors, (1007), 626 states have internal predecessors, (1007), 112 states have call successors, (112), 33 states have call predecessors, (112), 35 states have return successors, (113), 106 states have call predecessors, (113), 109 states have call successors, (113) [2024-11-11 20:25:22,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1232 transitions. [2024-11-11 20:25:22,751 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1232 transitions. Word has length 110 [2024-11-11 20:25:22,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:22,751 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1232 transitions. [2024-11-11 20:25:22,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-11 20:25:22,752 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1232 transitions. [2024-11-11 20:25:22,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-11 20:25:22,753 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:22,753 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:22,773 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-11 20:25:22,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:22,957 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:22,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:22,958 INFO L85 PathProgramCache]: Analyzing trace with hash -765303358, now seen corresponding path program 1 times [2024-11-11 20:25:22,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:22,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170696463] [2024-11-11 20:25:22,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:22,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:22,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:23,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:23,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:23,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:23,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:25:23,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:23,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:25:23,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:23,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:25:23,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:23,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:25:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:23,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:25:23,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:23,163 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 20:25:23,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:23,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170696463] [2024-11-11 20:25:23,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170696463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:23,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539725871] [2024-11-11 20:25:23,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:23,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:23,164 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:23,165 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:23,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-11 20:25:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:23,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 20:25:23,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:23,452 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-11 20:25:23,453 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:23,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539725871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:23,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:23,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-11 20:25:23,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578773304] [2024-11-11 20:25:23,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:23,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:25:23,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:23,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:25:23,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-11 20:25:23,454 INFO L87 Difference]: Start difference. First operand 752 states and 1232 transitions. Second operand has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:23,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:23,601 INFO L93 Difference]: Finished difference Result 1388 states and 2269 transitions. [2024-11-11 20:25:23,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:25:23,602 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 94 [2024-11-11 20:25:23,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:23,606 INFO L225 Difference]: With dead ends: 1388 [2024-11-11 20:25:23,607 INFO L226 Difference]: Without dead ends: 786 [2024-11-11 20:25:23,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2024-11-11 20:25:23,609 INFO L435 NwaCegarLoop]: 986 mSDtfsCounter, 96 mSDsluCounter, 5825 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 6811 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:23,610 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 6811 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:25:23,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 786 states. [2024-11-11 20:25:23,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 786 to 752. [2024-11-11 20:25:23,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 604 states have (on average 1.6672185430463575) internal successors, (1007), 626 states have internal predecessors, (1007), 112 states have call successors, (112), 33 states have call predecessors, (112), 35 states have return successors, (113), 106 states have call predecessors, (113), 109 states have call successors, (113) [2024-11-11 20:25:23,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1232 transitions. [2024-11-11 20:25:23,630 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1232 transitions. Word has length 94 [2024-11-11 20:25:23,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:23,630 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1232 transitions. [2024-11-11 20:25:23,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-11 20:25:23,631 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1232 transitions. [2024-11-11 20:25:23,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-11 20:25:23,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:23,632 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:23,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-11 20:25:23,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-11 20:25:23,833 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:23,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:23,834 INFO L85 PathProgramCache]: Analyzing trace with hash 224794698, now seen corresponding path program 1 times [2024-11-11 20:25:23,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:23,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009113305] [2024-11-11 20:25:23,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:23,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:23,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:23,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:24,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:24,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:24,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:24,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:25:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:24,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 20:25:24,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:24,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:24,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:25:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:24,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-11 20:25:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:24,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-11 20:25:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:24,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:25:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:24,293 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:25:24,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:24,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009113305] [2024-11-11 20:25:24,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009113305] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:24,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21152177] [2024-11-11 20:25:24,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:24,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:24,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:24,295 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:24,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-11 20:25:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:24,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 1510 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 20:25:24,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:24,613 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-11 20:25:24,613 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:24,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21152177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:24,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:24,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-11 20:25:24,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833644381] [2024-11-11 20:25:24,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:24,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-11 20:25:24,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:24,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-11 20:25:24,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:25:24,615 INFO L87 Difference]: Start difference. First operand 752 states and 1232 transitions. Second operand has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-11 20:25:24,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:24,731 INFO L93 Difference]: Finished difference Result 1379 states and 2255 transitions. [2024-11-11 20:25:24,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:25:24,732 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 111 [2024-11-11 20:25:24,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:24,736 INFO L225 Difference]: With dead ends: 1379 [2024-11-11 20:25:24,736 INFO L226 Difference]: Without dead ends: 777 [2024-11-11 20:25:24,738 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-11 20:25:24,738 INFO L435 NwaCegarLoop]: 986 mSDtfsCounter, 106 mSDsluCounter, 5813 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 6799 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:24,738 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 6799 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:25:24,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-11 20:25:24,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 752. [2024-11-11 20:25:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 604 states have (on average 1.6672185430463575) internal successors, (1007), 626 states have internal predecessors, (1007), 112 states have call successors, (112), 33 states have call predecessors, (112), 35 states have return successors, (113), 106 states have call predecessors, (113), 109 states have call successors, (113) [2024-11-11 20:25:24,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1232 transitions. [2024-11-11 20:25:24,754 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1232 transitions. Word has length 111 [2024-11-11 20:25:24,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:24,754 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 1232 transitions. [2024-11-11 20:25:24,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-11 20:25:24,754 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1232 transitions. [2024-11-11 20:25:24,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-11 20:25:24,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:24,756 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:24,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-11 20:25:24,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-11 20:25:24,960 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:24,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:24,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1690561406, now seen corresponding path program 1 times [2024-11-11 20:25:24,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:24,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860904194] [2024-11-11 20:25:24,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:24,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:25,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:25,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:25:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:25:25,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:25,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:25:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:25:25,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-11 20:25:25,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:25:25,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-11 20:25:25,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:25,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860904194] [2024-11-11 20:25:25,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860904194] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:25,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180106261] [2024-11-11 20:25:25,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:25,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:25,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:25,355 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:25,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-11 20:25:25,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:25,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 1511 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-11 20:25:25,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:25,766 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-11 20:25:25,767 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:25,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180106261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:25,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:25,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-11-11 20:25:25,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067716152] [2024-11-11 20:25:25,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:25,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:25:25,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:25,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:25:25,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:25:25,768 INFO L87 Difference]: Start difference. First operand 752 states and 1232 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:25:28,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:28,649 INFO L93 Difference]: Finished difference Result 2614 states and 4323 transitions. [2024-11-11 20:25:28,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-11 20:25:28,649 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2024-11-11 20:25:28,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:28,657 INFO L225 Difference]: With dead ends: 2614 [2024-11-11 20:25:28,657 INFO L226 Difference]: Without dead ends: 2016 [2024-11-11 20:25:28,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:25:28,659 INFO L435 NwaCegarLoop]: 565 mSDtfsCounter, 3180 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 3805 mSolverCounterSat, 551 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3390 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 4356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 551 IncrementalHoareTripleChecker+Valid, 3805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:28,659 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3390 Valid, 1325 Invalid, 4356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [551 Valid, 3805 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-11 20:25:28,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2016 states. [2024-11-11 20:25:28,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2016 to 1849. [2024-11-11 20:25:28,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1849 states, 1477 states have (on average 1.6587677725118484) internal successors, (2450), 1515 states have internal predecessors, (2450), 293 states have call successors, (293), 75 states have call predecessors, (293), 78 states have return successors, (314), 273 states have call predecessors, (314), 289 states have call successors, (314) [2024-11-11 20:25:28,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 3057 transitions. [2024-11-11 20:25:28,719 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 3057 transitions. Word has length 112 [2024-11-11 20:25:28,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:28,720 INFO L471 AbstractCegarLoop]: Abstraction has 1849 states and 3057 transitions. [2024-11-11 20:25:28,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 3 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-11 20:25:28,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 3057 transitions. [2024-11-11 20:25:28,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-11 20:25:28,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:28,724 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:28,738 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-11 20:25:28,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-11 20:25:28,925 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:28,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:28,925 INFO L85 PathProgramCache]: Analyzing trace with hash 109991026, now seen corresponding path program 1 times [2024-11-11 20:25:28,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:28,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688773387] [2024-11-11 20:25:28,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:28,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:28,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:28,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:29,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:25:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:25:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:25:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:29,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 20:25:29,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 20:25:29,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 20:25:29,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:25:29,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-11 20:25:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-11 20:25:29,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2024-11-11 20:25:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,398 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-11 20:25:29,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:29,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688773387] [2024-11-11 20:25:29,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688773387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:29,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685333367] [2024-11-11 20:25:29,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:29,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:29,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:29,400 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:29,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-11 20:25:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:29,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 1635 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-11 20:25:29,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:29,747 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-11 20:25:29,747 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:29,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685333367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:29,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:29,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 15 [2024-11-11 20:25:29,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515737273] [2024-11-11 20:25:29,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:29,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:25:29,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:29,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:25:29,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-11 20:25:29,748 INFO L87 Difference]: Start difference. First operand 1849 states and 3057 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:25:29,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:29,831 INFO L93 Difference]: Finished difference Result 4436 states and 7327 transitions. [2024-11-11 20:25:29,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-11 20:25:29,832 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 150 [2024-11-11 20:25:29,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:29,842 INFO L225 Difference]: With dead ends: 4436 [2024-11-11 20:25:29,842 INFO L226 Difference]: Without dead ends: 2741 [2024-11-11 20:25:29,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=235, Unknown=0, NotChecked=0, Total=272 [2024-11-11 20:25:29,849 INFO L435 NwaCegarLoop]: 1349 mSDtfsCounter, 954 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 4638 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:29,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 4638 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:25:29,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2741 states. [2024-11-11 20:25:29,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2741 to 2737. [2024-11-11 20:25:29,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2737 states, 2193 states have (on average 1.6361149110807114) internal successors, (3588), 2232 states have internal predecessors, (3588), 423 states have call successors, (423), 118 states have call predecessors, (423), 120 states have return successors, (482), 401 states have call predecessors, (482), 417 states have call successors, (482) [2024-11-11 20:25:29,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2737 states to 2737 states and 4493 transitions. [2024-11-11 20:25:29,974 INFO L78 Accepts]: Start accepts. Automaton has 2737 states and 4493 transitions. Word has length 150 [2024-11-11 20:25:29,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:29,975 INFO L471 AbstractCegarLoop]: Abstraction has 2737 states and 4493 transitions. [2024-11-11 20:25:29,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:25:29,975 INFO L276 IsEmpty]: Start isEmpty. Operand 2737 states and 4493 transitions. [2024-11-11 20:25:29,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-11 20:25:29,980 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:29,981 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:29,996 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-11 20:25:30,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-11 20:25:30,182 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:30,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:30,182 INFO L85 PathProgramCache]: Analyzing trace with hash -672342606, now seen corresponding path program 1 times [2024-11-11 20:25:30,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:30,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577243160] [2024-11-11 20:25:30,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:30,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:30,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:25:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:25:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:25:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:30,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 20:25:30,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-11 20:25:30,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:30,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:30,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 20:25:30,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:25:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-11 20:25:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-11 20:25:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-11 20:25:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,640 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-11 20:25:30,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:30,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577243160] [2024-11-11 20:25:30,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577243160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:30,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595638979] [2024-11-11 20:25:30,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:30,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:30,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:30,644 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:30,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-11 20:25:30,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:30,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 1632 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 20:25:30,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:31,038 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-11 20:25:31,038 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:31,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595638979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:31,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:31,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-11 20:25:31,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109603192] [2024-11-11 20:25:31,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:31,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:25:31,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:31,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:25:31,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:25:31,039 INFO L87 Difference]: Start difference. First operand 2737 states and 4493 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:25:31,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:31,602 INFO L93 Difference]: Finished difference Result 5368 states and 9001 transitions. [2024-11-11 20:25:31,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 20:25:31,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2024-11-11 20:25:31,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:31,620 INFO L225 Difference]: With dead ends: 5368 [2024-11-11 20:25:31,621 INFO L226 Difference]: Without dead ends: 2785 [2024-11-11 20:25:31,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:25:31,636 INFO L435 NwaCegarLoop]: 990 mSDtfsCounter, 946 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 2542 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:31,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 2542 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-11 20:25:31,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2024-11-11 20:25:31,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2785. [2024-11-11 20:25:31,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2235 states have (on average 1.6375838926174497) internal successors, (3660), 2274 states have internal predecessors, (3660), 423 states have call successors, (423), 124 states have call predecessors, (423), 126 states have return successors, (487), 401 states have call predecessors, (487), 417 states have call successors, (487) [2024-11-11 20:25:31,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4570 transitions. [2024-11-11 20:25:31,748 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4570 transitions. Word has length 151 [2024-11-11 20:25:31,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:31,749 INFO L471 AbstractCegarLoop]: Abstraction has 2785 states and 4570 transitions. [2024-11-11 20:25:31,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:25:31,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4570 transitions. [2024-11-11 20:25:31,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-11 20:25:31,756 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:31,756 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:31,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-11 20:25:31,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:31,957 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:31,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:31,958 INFO L85 PathProgramCache]: Analyzing trace with hash -126649904, now seen corresponding path program 1 times [2024-11-11 20:25:31,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:31,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390481142] [2024-11-11 20:25:31,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:31,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:25:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:25:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:25:32,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:32,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:32,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:25:32,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:25:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,614 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:32,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:25:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 20:25:32,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-11 20:25:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 20:25:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:32,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:25:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-11 20:25:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:25:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 20:25:32,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2024-11-11 20:25:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2024-11-11 20:25:32,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-11-11 20:25:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,653 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-11 20:25:32,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:32,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390481142] [2024-11-11 20:25:32,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390481142] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:32,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2009756447] [2024-11-11 20:25:32,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:32,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:32,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:32,655 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:32,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-11 20:25:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:32,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 2245 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 20:25:32,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:33,076 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-11 20:25:33,076 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:33,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2009756447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:33,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:33,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-11 20:25:33,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067064145] [2024-11-11 20:25:33,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:33,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:25:33,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:33,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:25:33,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:25:33,078 INFO L87 Difference]: Start difference. First operand 2785 states and 4570 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-11 20:25:33,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:33,535 INFO L93 Difference]: Finished difference Result 5464 states and 9137 transitions. [2024-11-11 20:25:33,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 20:25:33,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 226 [2024-11-11 20:25:33,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:33,547 INFO L225 Difference]: With dead ends: 5464 [2024-11-11 20:25:33,547 INFO L226 Difference]: Without dead ends: 2833 [2024-11-11 20:25:33,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:25:33,557 INFO L435 NwaCegarLoop]: 987 mSDtfsCounter, 947 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 489 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 2539 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:33,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [954 Valid, 2539 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 489 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 20:25:33,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2833 states. [2024-11-11 20:25:33,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2833 to 2833. [2024-11-11 20:25:33,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2833 states, 2277 states have (on average 1.6389986824769434) internal successors, (3732), 2316 states have internal predecessors, (3732), 423 states have call successors, (423), 130 states have call predecessors, (423), 132 states have return successors, (492), 401 states have call predecessors, (492), 417 states have call successors, (492) [2024-11-11 20:25:33,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2833 states to 2833 states and 4647 transitions. [2024-11-11 20:25:33,702 INFO L78 Accepts]: Start accepts. Automaton has 2833 states and 4647 transitions. Word has length 226 [2024-11-11 20:25:33,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:33,702 INFO L471 AbstractCegarLoop]: Abstraction has 2833 states and 4647 transitions. [2024-11-11 20:25:33,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (24), 2 states have call predecessors, (24), 3 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2024-11-11 20:25:33,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2833 states and 4647 transitions. [2024-11-11 20:25:33,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-11 20:25:33,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:33,709 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:33,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-11 20:25:33,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:33,910 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:33,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:33,911 INFO L85 PathProgramCache]: Analyzing trace with hash 845207218, now seen corresponding path program 1 times [2024-11-11 20:25:33,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:33,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457040448] [2024-11-11 20:25:33,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:33,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:33,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:33,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:34,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:25:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:25:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:25:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:34,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:34,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:25:34,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-11 20:25:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:34,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:25:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 20:25:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-11 20:25:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-11 20:25:34,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-11 20:25:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,261 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-11 20:25:34,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:34,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457040448] [2024-11-11 20:25:34,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457040448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:34,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094702875] [2024-11-11 20:25:34,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:34,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:34,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:34,263 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:34,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-11 20:25:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:34,557 INFO L256 TraceCheckSpWp]: Trace formula consists of 1636 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 20:25:34,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:34,668 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-11 20:25:34,668 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:34,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094702875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:34,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:34,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-11 20:25:34,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40055304] [2024-11-11 20:25:34,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:34,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:25:34,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:34,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:25:34,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:25:34,671 INFO L87 Difference]: Start difference. First operand 2833 states and 4647 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:25:35,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:35,121 INFO L93 Difference]: Finished difference Result 5560 states and 9273 transitions. [2024-11-11 20:25:35,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 20:25:35,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 155 [2024-11-11 20:25:35,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:35,134 INFO L225 Difference]: With dead ends: 5560 [2024-11-11 20:25:35,134 INFO L226 Difference]: Without dead ends: 2881 [2024-11-11 20:25:35,142 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:25:35,143 INFO L435 NwaCegarLoop]: 984 mSDtfsCounter, 928 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:35,143 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 2536 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 20:25:35,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2024-11-11 20:25:35,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2881. [2024-11-11 20:25:35,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2881 states, 2319 states have (on average 1.6403622250970247) internal successors, (3804), 2358 states have internal predecessors, (3804), 423 states have call successors, (423), 136 states have call predecessors, (423), 138 states have return successors, (497), 401 states have call predecessors, (497), 417 states have call successors, (497) [2024-11-11 20:25:35,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2881 states to 2881 states and 4724 transitions. [2024-11-11 20:25:35,213 INFO L78 Accepts]: Start accepts. Automaton has 2881 states and 4724 transitions. Word has length 155 [2024-11-11 20:25:35,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:35,214 INFO L471 AbstractCegarLoop]: Abstraction has 2881 states and 4724 transitions. [2024-11-11 20:25:35,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:25:35,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2881 states and 4724 transitions. [2024-11-11 20:25:35,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-11 20:25:35,219 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:35,219 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:35,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-11 20:25:35,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:35,419 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:35,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:35,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1094075264, now seen corresponding path program 1 times [2024-11-11 20:25:35,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:35,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713321086] [2024-11-11 20:25:35,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:35,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:35,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:35,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:25:35,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:25:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:25:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 20:25:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-11 20:25:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-11 20:25:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-11 20:25:35,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-11 20:25:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-11 20:25:35,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-11 20:25:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:35,818 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-11 20:25:35,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:35,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713321086] [2024-11-11 20:25:35,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713321086] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:35,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941559064] [2024-11-11 20:25:35,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:35,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:35,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:35,820 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:35,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-11 20:25:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:36,079 INFO L256 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 20:25:36,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-11 20:25:36,173 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:25:36,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941559064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:25:36,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:25:36,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2024-11-11 20:25:36,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322608354] [2024-11-11 20:25:36,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:25:36,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-11 20:25:36,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:36,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-11 20:25:36,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:25:36,174 INFO L87 Difference]: Start difference. First operand 2881 states and 4724 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:25:36,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:25:36,615 INFO L93 Difference]: Finished difference Result 5656 states and 9409 transitions. [2024-11-11 20:25:36,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 20:25:36,616 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 157 [2024-11-11 20:25:36,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:25:36,628 INFO L225 Difference]: With dead ends: 5656 [2024-11-11 20:25:36,628 INFO L226 Difference]: Without dead ends: 2929 [2024-11-11 20:25:36,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:25:36,636 INFO L435 NwaCegarLoop]: 981 mSDtfsCounter, 934 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 947 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:25:36,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [947 Valid, 2533 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 487 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-11 20:25:36,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2929 states. [2024-11-11 20:25:36,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2929 to 2929. [2024-11-11 20:25:36,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2929 states, 2361 states have (on average 1.641677255400254) internal successors, (3876), 2400 states have internal predecessors, (3876), 423 states have call successors, (423), 142 states have call predecessors, (423), 144 states have return successors, (502), 401 states have call predecessors, (502), 417 states have call successors, (502) [2024-11-11 20:25:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2929 states to 2929 states and 4801 transitions. [2024-11-11 20:25:36,703 INFO L78 Accepts]: Start accepts. Automaton has 2929 states and 4801 transitions. Word has length 157 [2024-11-11 20:25:36,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:25:36,703 INFO L471 AbstractCegarLoop]: Abstraction has 2929 states and 4801 transitions. [2024-11-11 20:25:36,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-11 20:25:36,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2929 states and 4801 transitions. [2024-11-11 20:25:36,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-11 20:25:36,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:25:36,708 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:25:36,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-11 20:25:36,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:36,908 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:25:36,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:25:36,909 INFO L85 PathProgramCache]: Analyzing trace with hash -331428720, now seen corresponding path program 1 times [2024-11-11 20:25:36,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:25:36,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966691442] [2024-11-11 20:25:36,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:36,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:25:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:36,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:25:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-11 20:25:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-11 20:25:37,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:25:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:25:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-11 20:25:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,644 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:37,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:37,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 20:25:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 20:25:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 20:25:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:25:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-11 20:25:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-11-11 20:25:37,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:37,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 20:25:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 20:25:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:25:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 20:25:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:25:37,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-11-11 20:25:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-11 20:25:37,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-11-11 20:25:37,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-11 20:25:37,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:25:37,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966691442] [2024-11-11 20:25:37,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966691442] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:25:37,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905425538] [2024-11-11 20:25:37,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:25:37,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:25:37,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:25:37,703 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:25:37,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-11 20:25:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:25:38,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 2257 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-11 20:25:38,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:25:38,165 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 36 proven. 5 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-11 20:25:38,165 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-11 20:25:38,570 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 27 proven. 5 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-11 20:25:38,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905425538] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-11 20:25:38,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-11 20:25:38,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2024-11-11 20:25:38,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890143581] [2024-11-11 20:25:38,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-11 20:25:38,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-11 20:25:38,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:25:38,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-11 20:25:38,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:25:38,572 INFO L87 Difference]: Start difference. First operand 2929 states and 4801 transitions. Second operand has 13 states, 13 states have (on average 13.23076923076923) internal successors, (172), 9 states have internal predecessors, (172), 5 states have call successors, (44), 9 states have call predecessors, (44), 5 states have return successors, (40), 6 states have call predecessors, (40), 5 states have call successors, (40) [2024-11-11 20:26:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:26:00,426 INFO L93 Difference]: Finished difference Result 18900 states and 33085 transitions. [2024-11-11 20:26:00,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-11 20:26:00,427 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 13.23076923076923) internal successors, (172), 9 states have internal predecessors, (172), 5 states have call successors, (44), 9 states have call predecessors, (44), 5 states have return successors, (40), 6 states have call predecessors, (40), 5 states have call successors, (40) Word has length 238 [2024-11-11 20:26:00,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:26:00,529 INFO L225 Difference]: With dead ends: 18900 [2024-11-11 20:26:00,529 INFO L226 Difference]: Without dead ends: 15940 [2024-11-11 20:26:00,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 543 SyntacticMatches, 5 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 619 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=499, Invalid=1571, Unknown=0, NotChecked=0, Total=2070 [2024-11-11 20:26:00,551 INFO L435 NwaCegarLoop]: 752 mSDtfsCounter, 5574 mSDsluCounter, 4046 mSDsCounter, 0 mSdLazyCounter, 11822 mSolverCounterSat, 1837 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5697 SdHoareTripleChecker+Valid, 4798 SdHoareTripleChecker+Invalid, 13659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1837 IncrementalHoareTripleChecker+Valid, 11822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2024-11-11 20:26:00,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5697 Valid, 4798 Invalid, 13659 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1837 Valid, 11822 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2024-11-11 20:26:00,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15940 states. [2024-11-11 20:26:02,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15940 to 9801. [2024-11-11 20:26:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9801 states, 7727 states have (on average 1.578102756567879) internal successors, (12194), 7865 states have internal predecessors, (12194), 1483 states have call successors, (1483), 529 states have call predecessors, (1483), 590 states have return successors, (2420), 1439 states have call predecessors, (2420), 1469 states have call successors, (2420) [2024-11-11 20:26:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9801 states to 9801 states and 16097 transitions. [2024-11-11 20:26:02,345 INFO L78 Accepts]: Start accepts. Automaton has 9801 states and 16097 transitions. Word has length 238 [2024-11-11 20:26:02,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:26:02,345 INFO L471 AbstractCegarLoop]: Abstraction has 9801 states and 16097 transitions. [2024-11-11 20:26:02,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 13.23076923076923) internal successors, (172), 9 states have internal predecessors, (172), 5 states have call successors, (44), 9 states have call predecessors, (44), 5 states have return successors, (40), 6 states have call predecessors, (40), 5 states have call successors, (40) [2024-11-11 20:26:02,346 INFO L276 IsEmpty]: Start isEmpty. Operand 9801 states and 16097 transitions. [2024-11-11 20:26:02,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-11 20:26:02,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:26:02,359 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:26:02,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-11 20:26:02,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:26:02,563 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:26:02,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:26:02,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1851847791, now seen corresponding path program 1 times [2024-11-11 20:26:02,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:26:02,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300808802] [2024-11-11 20:26:02,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:26:02,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:26:02,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:26:02,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:26:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-11 20:26:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:26:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:26:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:26:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 20:26:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 20:26:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:02,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 20:26:02,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:26:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-11 20:26:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-11 20:26:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-11 20:26:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:02,975 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-11 20:26:02,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:26:02,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300808802] [2024-11-11 20:26:02,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300808802] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:26:02,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464653528] [2024-11-11 20:26:02,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:26:02,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:26:02,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:26:02,977 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:26:02,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-11 20:26:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:03,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 1638 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-11 20:26:03,247 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:26:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-11 20:26:03,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:26:03,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464653528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:26:03,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:26:03,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 12 [2024-11-11 20:26:03,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242100854] [2024-11-11 20:26:03,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:26:03,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:26:03,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:26:03,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:26:03,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:26:03,282 INFO L87 Difference]: Start difference. First operand 9801 states and 16097 transitions. Second operand has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-11 20:26:04,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:26:04,965 INFO L93 Difference]: Finished difference Result 19698 states and 32342 transitions. [2024-11-11 20:26:04,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:26:04,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 160 [2024-11-11 20:26:04,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:26:05,017 INFO L225 Difference]: With dead ends: 19698 [2024-11-11 20:26:05,018 INFO L226 Difference]: Without dead ends: 9914 [2024-11-11 20:26:05,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:26:05,053 INFO L435 NwaCegarLoop]: 1007 mSDtfsCounter, 122 mSDsluCounter, 4896 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 5903 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:26:05,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 5903 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:26:05,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9914 states. [2024-11-11 20:26:07,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9914 to 9794. [2024-11-11 20:26:07,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9794 states, 7720 states have (on average 1.5774611398963732) internal successors, (12178), 7858 states have internal predecessors, (12178), 1483 states have call successors, (1483), 529 states have call predecessors, (1483), 590 states have return successors, (2420), 1439 states have call predecessors, (2420), 1469 states have call successors, (2420) [2024-11-11 20:26:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9794 states to 9794 states and 16081 transitions. [2024-11-11 20:26:07,181 INFO L78 Accepts]: Start accepts. Automaton has 9794 states and 16081 transitions. Word has length 160 [2024-11-11 20:26:07,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:26:07,182 INFO L471 AbstractCegarLoop]: Abstraction has 9794 states and 16081 transitions. [2024-11-11 20:26:07,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-11 20:26:07,182 INFO L276 IsEmpty]: Start isEmpty. Operand 9794 states and 16081 transitions. [2024-11-11 20:26:07,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-11 20:26:07,189 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:26:07,189 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:26:07,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-11 20:26:07,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:26:07,390 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:26:07,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:26:07,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2103698964, now seen corresponding path program 1 times [2024-11-11 20:26:07,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:26:07,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783111421] [2024-11-11 20:26:07,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:26:07,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:26:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:26:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:26:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 20:26:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:26:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:26:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:26:07,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 20:26:07,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 20:26:07,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 20:26:07,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:26:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-11 20:26:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-11 20:26:07,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 20:26:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:07,932 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-11 20:26:07,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:26:07,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783111421] [2024-11-11 20:26:07,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783111421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:26:07,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:26:07,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:26:07,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512066632] [2024-11-11 20:26:07,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:26:07,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:26:07,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:26:07,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:26:07,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:26:07,933 INFO L87 Difference]: Start difference. First operand 9794 states and 16081 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:26:14,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:26:14,877 INFO L93 Difference]: Finished difference Result 22337 states and 37312 transitions. [2024-11-11 20:26:14,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:26:14,878 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 161 [2024-11-11 20:26:14,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:26:14,954 INFO L225 Difference]: With dead ends: 22337 [2024-11-11 20:26:14,954 INFO L226 Difference]: Without dead ends: 12645 [2024-11-11 20:26:15,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:26:15,006 INFO L435 NwaCegarLoop]: 452 mSDtfsCounter, 1129 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 3221 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 3446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 3221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-11 20:26:15,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 1730 Invalid, 3446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 3221 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-11 20:26:15,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12645 states. [2024-11-11 20:26:16,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12645 to 9846. [2024-11-11 20:26:16,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9846 states, 7772 states have (on average 1.5768142048378795) internal successors, (12255), 7910 states have internal predecessors, (12255), 1483 states have call successors, (1483), 529 states have call predecessors, (1483), 590 states have return successors, (2420), 1439 states have call predecessors, (2420), 1469 states have call successors, (2420) [2024-11-11 20:26:16,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9846 states to 9846 states and 16158 transitions. [2024-11-11 20:26:16,940 INFO L78 Accepts]: Start accepts. Automaton has 9846 states and 16158 transitions. Word has length 161 [2024-11-11 20:26:16,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:26:16,940 INFO L471 AbstractCegarLoop]: Abstraction has 9846 states and 16158 transitions. [2024-11-11 20:26:16,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:26:16,941 INFO L276 IsEmpty]: Start isEmpty. Operand 9846 states and 16158 transitions. [2024-11-11 20:26:16,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-11 20:26:16,947 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:26:16,947 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:26:16,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-11 20:26:16,947 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:26:16,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:26:16,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1180405910, now seen corresponding path program 1 times [2024-11-11 20:26:16,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:26:16,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852591053] [2024-11-11 20:26:16,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:26:16,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:26:16,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:16,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:26:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:26:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 20:26:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:17,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-11 20:26:17,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:26:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:26:17,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 20:26:17,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 20:26:17,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 20:26:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:26:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-11-11 20:26:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-11 20:26:17,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-11 20:26:17,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:17,321 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-11 20:26:17,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:26:17,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852591053] [2024-11-11 20:26:17,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852591053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:26:17,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:26:17,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:26:17,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31075759] [2024-11-11 20:26:17,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:26:17,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:26:17,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:26:17,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:26:17,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:26:17,323 INFO L87 Difference]: Start difference. First operand 9846 states and 16158 transitions. Second operand has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:26:23,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:26:23,895 INFO L93 Difference]: Finished difference Result 22446 states and 37431 transitions. [2024-11-11 20:26:23,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:26:23,896 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 161 [2024-11-11 20:26:23,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:26:23,949 INFO L225 Difference]: With dead ends: 22446 [2024-11-11 20:26:23,949 INFO L226 Difference]: Without dead ends: 12608 [2024-11-11 20:26:23,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:26:23,981 INFO L435 NwaCegarLoop]: 451 mSDtfsCounter, 1621 mSDsluCounter, 1202 mSDsCounter, 0 mSdLazyCounter, 3096 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 1653 SdHoareTripleChecker+Invalid, 3492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 3096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:26:23,981 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 1653 Invalid, 3492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 3096 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-11 20:26:23,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12608 states. [2024-11-11 20:26:26,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12608 to 9818. [2024-11-11 20:26:26,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9818 states, 7747 states have (on average 1.5759648896346974) internal successors, (12209), 7883 states have internal predecessors, (12209), 1482 states have call successors, (1482), 529 states have call predecessors, (1482), 588 states have return successors, (2417), 1438 states have call predecessors, (2417), 1468 states have call successors, (2417) [2024-11-11 20:26:26,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9818 states to 9818 states and 16108 transitions. [2024-11-11 20:26:26,168 INFO L78 Accepts]: Start accepts. Automaton has 9818 states and 16108 transitions. Word has length 161 [2024-11-11 20:26:26,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:26:26,168 INFO L471 AbstractCegarLoop]: Abstraction has 9818 states and 16108 transitions. [2024-11-11 20:26:26,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.285714285714286) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (19), 5 states have call predecessors, (19), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-11 20:26:26,169 INFO L276 IsEmpty]: Start isEmpty. Operand 9818 states and 16108 transitions. [2024-11-11 20:26:26,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-11 20:26:26,176 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:26:26,176 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:26:26,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-11 20:26:26,177 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:26:26,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:26:26,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1416180035, now seen corresponding path program 1 times [2024-11-11 20:26:26,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:26:26,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289271935] [2024-11-11 20:26:26,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:26:26,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:26:26,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:26:26,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-11 20:26:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-11 20:26:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-11 20:26:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:26:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:26:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 20:26:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-11 20:26:26,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:26,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:26:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-11 20:26:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-11 20:26:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-11 20:26:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-11 20:26:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-11 20:26:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:26,929 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-11 20:26:26,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:26:26,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289271935] [2024-11-11 20:26:26,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289271935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:26:26,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203651032] [2024-11-11 20:26:26,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:26:26,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:26:26,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:26:26,931 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-11 20:26:26,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-11 20:26:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:26:27,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 1648 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-11 20:26:27,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:26:27,355 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-11 20:26:27,356 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:26:27,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203651032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:26:27,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:26:27,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2024-11-11 20:26:27,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034220246] [2024-11-11 20:26:27,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:26:27,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-11 20:26:27,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:26:27,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-11 20:26:27,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2024-11-11 20:26:27,357 INFO L87 Difference]: Start difference. First operand 9818 states and 16108 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-11 20:26:31,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:26:31,004 INFO L93 Difference]: Finished difference Result 20094 states and 33365 transitions. [2024-11-11 20:26:31,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-11 20:26:31,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 6 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 162 [2024-11-11 20:26:31,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:26:31,070 INFO L225 Difference]: With dead ends: 20094 [2024-11-11 20:26:31,071 INFO L226 Difference]: Without dead ends: 10371 [2024-11-11 20:26:31,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-11 20:26:31,121 INFO L435 NwaCegarLoop]: 464 mSDtfsCounter, 1877 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 2939 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 3338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 2939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-11 20:26:31,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 1260 Invalid, 3338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 2939 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-11 20:26:31,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10371 states.