./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec3_product03.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_spec3_product03.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 ec740d4c0b0b941516a7691cfe22f258e1a0e4fdd205bb4a0c04151c297a8c86 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 20:31:25,740 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 20:31:25,794 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 20:31:25,799 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 20:31:25,800 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 20:31:25,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 20:31:25,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 20:31:25,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 20:31:25,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 20:31:25,837 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 20:31:25,843 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 20:31:25,844 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 20:31:25,844 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 20:31:25,844 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 20:31:25,844 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 20:31:25,845 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 20:31:25,845 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 20:31:25,845 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 20:31:25,845 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 20:31:25,845 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 20:31:25,848 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 20:31:25,848 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 20:31:25,848 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 20:31:25,848 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 20:31:25,849 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 20:31:25,849 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 20:31:25,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 20:31:25,849 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 20:31:25,849 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 20:31:25,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 20:31:25,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 20:31:25,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 20:31:25,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:31:25,850 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 20:31:25,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 20:31:25,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 20:31:25,850 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 20:31:25,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 20:31:25,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 20:31:25,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 20:31:25,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 20:31:25,855 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 20:31:25,855 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec740d4c0b0b941516a7691cfe22f258e1a0e4fdd205bb4a0c04151c297a8c86 [2024-11-11 20:31:26,047 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 20:31:26,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 20:31:26,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 20:31:26,068 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 20:31:26,068 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 20:31:26,069 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec3_product03.cil.c [2024-11-11 20:31:27,427 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 20:31:27,730 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 20:31:27,731 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec3_product03.cil.c [2024-11-11 20:31:27,755 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df417130e/85b7aa45b99d4330bf859f89f99677a8/FLAG56733d4c8 [2024-11-11 20:31:27,998 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df417130e/85b7aa45b99d4330bf859f89f99677a8 [2024-11-11 20:31:28,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 20:31:28,005 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 20:31:28,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 20:31:28,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 20:31:28,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 20:31:28,014 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e73c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28, skipping insertion in model container [2024-11-11 20:31:28,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,064 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 20:31:28,401 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_spec3_product03.cil.c[33356,33369] [2024-11-11 20:31:28,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:31:28,497 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 20:31:28,505 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-11 20:31:28,508 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [414] [2024-11-11 20:31:28,508 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [514] [2024-11-11 20:31:28,508 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [704] [2024-11-11 20:31:28,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1371] [2024-11-11 20:31:28,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1389] [2024-11-11 20:31:28,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1427] [2024-11-11 20:31:28,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1436] [2024-11-11 20:31:28,511 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2938] [2024-11-11 20:31:28,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3057] [2024-11-11 20:31:28,542 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_spec3_product03.cil.c[33356,33369] [2024-11-11 20:31:28,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 20:31:28,602 INFO L204 MainTranslator]: Completed translation [2024-11-11 20:31:28,603 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28 WrapperNode [2024-11-11 20:31:28,603 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 20:31:28,604 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 20:31:28,604 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 20:31:28,604 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 20:31:28,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,668 INFO L138 Inliner]: procedures = 90, calls = 342, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 1042 [2024-11-11 20:31:28,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 20:31:28,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 20:31:28,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 20:31:28,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 20:31:28,678 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,684 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,704 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 20:31:28,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,704 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,746 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,777 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 20:31:28,778 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 20:31:28,778 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 20:31:28,778 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 20:31:28,779 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (1/1) ... [2024-11-11 20:31:28,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 20:31:28,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:31:28,809 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 20:31:28,816 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 20:31:28,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 20:31:28,852 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2024-11-11 20:31:28,852 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2024-11-11 20:31:28,852 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-11 20:31:28,852 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-11 20:31:28,852 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-11 20:31:28,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-11 20:31:28,852 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-11 20:31:28,853 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-11 20:31:28,853 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-11 20:31:28,853 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-11 20:31:28,853 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-11 20:31:28,854 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-11 20:31:28,854 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-11 20:31:28,854 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-11 20:31:28,854 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-11 20:31:28,854 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-11 20:31:28,854 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-11 20:31:28,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-11 20:31:28,855 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-11 20:31:28,855 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-11 20:31:28,855 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-11 20:31:28,855 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-11 20:31:28,856 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-11 20:31:28,856 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-11 20:31:28,856 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-11 20:31:28,856 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-11 20:31:28,856 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2024-11-11 20:31:28,857 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2024-11-11 20:31:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-11 20:31:28,857 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-11 20:31:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2024-11-11 20:31:28,857 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2024-11-11 20:31:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-11 20:31:28,857 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-11 20:31:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-11 20:31:28,857 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-11 20:31:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-11 20:31:28,857 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-11 20:31:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-11 20:31:28,857 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-11 20:31:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2024-11-11 20:31:28,857 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2024-11-11 20:31:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 20:31:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-11 20:31:28,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-11 20:31:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-11 20:31:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-11 20:31:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-11 20:31:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-11 20:31:28,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-11 20:31:28,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-11 20:31:28,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-11 20:31:28,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-11 20:31:28,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-11 20:31:28,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-11 20:31:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-11 20:31:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-11 20:31:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-11 20:31:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-11 20:31:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-11 20:31:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-11 20:31:28,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-11 20:31:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-11 20:31:28,861 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-11 20:31:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-11 20:31:28,861 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-11 20:31:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-11 20:31:28,861 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-11 20:31:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-11 20:31:28,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-11 20:31:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 20:31:28,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 20:31:28,861 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-11 20:31:28,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-11 20:31:28,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 20:31:29,000 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 20:31:29,893 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-11-11 20:31:29,894 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 20:31:29,913 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 20:31:29,913 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 20:31:29,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:31:29 BoogieIcfgContainer [2024-11-11 20:31:29,913 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 20:31:29,915 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 20:31:29,915 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 20:31:29,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 20:31:29,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 08:31:28" (1/3) ... [2024-11-11 20:31:29,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cc209c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:31:29, skipping insertion in model container [2024-11-11 20:31:29,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 08:31:28" (2/3) ... [2024-11-11 20:31:29,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59cc209c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 08:31:29, skipping insertion in model container [2024-11-11 20:31:29,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 08:31:29" (3/3) ... [2024-11-11 20:31:29,919 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product03.cil.c [2024-11-11 20:31:29,931 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 20:31:29,932 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 20:31:29,989 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 20:31:29,994 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;@7e491342, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 20:31:29,994 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 20:31:29,999 INFO L276 IsEmpty]: Start isEmpty. Operand has 574 states, 440 states have (on average 1.6727272727272726) internal successors, (736), 458 states have internal predecessors, (736), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-11 20:31:30,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-11 20:31:30,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:31:30,056 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:31:30,057 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:31:30,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:31:30,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1064458506, now seen corresponding path program 1 times [2024-11-11 20:31:30,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:31:30,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539946645] [2024-11-11 20:31:30,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:31:30,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:31:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:30,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:31:30,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:31:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:31:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-11 20:31:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-11 20:31:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-11 20:31:31,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:31,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-11 20:31:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-11 20:31:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-11 20:31:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-11 20:31:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:31,353 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:31:31,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:31:31,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539946645] [2024-11-11 20:31:31,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539946645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:31:31,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:31:31,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-11 20:31:31,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663222859] [2024-11-11 20:31:31,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:31:31,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 20:31:31,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:31:31,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 20:31:31,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:31:31,387 INFO L87 Difference]: Start difference. First operand has 574 states, 440 states have (on average 1.6727272727272726) internal successors, (736), 458 states have internal predecessors, (736), 106 states have call successors, (106), 26 states have call predecessors, (106), 26 states have return successors, (106), 103 states have call predecessors, (106), 106 states have call successors, (106) Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:31:37,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:31:37,986 INFO L93 Difference]: Finished difference Result 1493 states and 2576 transitions. [2024-11-11 20:31:37,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 20:31:37,989 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 113 [2024-11-11 20:31:37,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:31:38,005 INFO L225 Difference]: With dead ends: 1493 [2024-11-11 20:31:38,006 INFO L226 Difference]: Without dead ends: 919 [2024-11-11 20:31:38,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-11 20:31:38,017 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 1669 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 5373 mSolverCounterSat, 444 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1780 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 5817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 444 IncrementalHoareTripleChecker+Valid, 5373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:31:38,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1780 Valid, 3085 Invalid, 5817 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [444 Valid, 5373 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-11 20:31:38,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2024-11-11 20:31:38,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 577. [2024-11-11 20:31:38,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 443 states have (on average 1.6636568848758464) internal successors, (737), 461 states have internal predecessors, (737), 107 states have call successors, (107), 26 states have call predecessors, (107), 26 states have return successors, (106), 102 states have call predecessors, (106), 104 states have call successors, (106) [2024-11-11 20:31:38,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 950 transitions. [2024-11-11 20:31:38,266 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 950 transitions. Word has length 113 [2024-11-11 20:31:38,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:31:38,268 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 950 transitions. [2024-11-11 20:31:38,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:31:38,268 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 950 transitions. [2024-11-11 20:31:38,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-11 20:31:38,275 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:31:38,276 INFO L218 NwaCegarLoop]: trace histogram [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 20:31:38,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 20:31:38,276 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:31:38,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:31:38,277 INFO L85 PathProgramCache]: Analyzing trace with hash -601072762, now seen corresponding path program 1 times [2024-11-11 20:31:38,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:31:38,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517491675] [2024-11-11 20:31:38,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:31:38,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:31:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:31:38,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:31:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:38,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-11 20:31:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 20:31:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 20:31:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 20:31:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:31:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:31:38,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,829 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:31:38,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:31:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:38,851 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:31:38,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:31:38,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517491675] [2024-11-11 20:31:38,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517491675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:31:38,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:31:38,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:31:38,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374821934] [2024-11-11 20:31:38,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:31:38,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:31:38,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:31:38,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:31:38,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:31:38,855 INFO L87 Difference]: Start difference. First operand 577 states and 950 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:31:43,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:31:43,438 INFO L93 Difference]: Finished difference Result 1474 states and 2505 transitions. [2024-11-11 20:31:43,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-11 20:31:43,439 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2024-11-11 20:31:43,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:31:43,444 INFO L225 Difference]: With dead ends: 1474 [2024-11-11 20:31:43,445 INFO L226 Difference]: Without dead ends: 882 [2024-11-11 20:31:43,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2024-11-11 20:31:43,448 INFO L435 NwaCegarLoop]: 467 mSDtfsCounter, 1572 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 2798 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1682 SdHoareTripleChecker+Valid, 1650 SdHoareTripleChecker+Invalid, 3248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 2798 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-11 20:31:43,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1682 Valid, 1650 Invalid, 3248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 2798 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-11 20:31:43,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-11 20:31:43,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 553. [2024-11-11 20:31:43,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 422 states have (on average 1.6540284360189574) internal successors, (698), 438 states have internal predecessors, (698), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-11 20:31:43,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 907 transitions. [2024-11-11 20:31:43,589 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 907 transitions. Word has length 114 [2024-11-11 20:31:43,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:31:43,591 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 907 transitions. [2024-11-11 20:31:43,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:31:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 907 transitions. [2024-11-11 20:31:43,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-11 20:31:43,594 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:31:43,594 INFO L218 NwaCegarLoop]: trace histogram [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 20:31:43,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 20:31:43,595 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:31:43,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:31:43,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1244322680, now seen corresponding path program 1 times [2024-11-11 20:31:43,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:31:43,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980259126] [2024-11-11 20:31:43,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:31:43,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:31:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:43,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:31:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:31:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:31:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-11 20:31:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 20:31:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-11 20:31:44,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-11 20:31:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-11 20:31:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-11 20:31:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-11 20:31:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:44,102 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:31:44,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:31:44,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980259126] [2024-11-11 20:31:44,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980259126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:31:44,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:31:44,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:31:44,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266291294] [2024-11-11 20:31:44,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:31:44,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:31:44,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:31:44,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:31:44,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:31:44,103 INFO L87 Difference]: Start difference. First operand 553 states and 907 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:31:48,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:31:48,237 INFO L93 Difference]: Finished difference Result 1419 states and 2411 transitions. [2024-11-11 20:31:48,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:31:48,237 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 114 [2024-11-11 20:31:48,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:31:48,242 INFO L225 Difference]: With dead ends: 1419 [2024-11-11 20:31:48,242 INFO L226 Difference]: Without dead ends: 882 [2024-11-11 20:31:48,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:31:48,245 INFO L435 NwaCegarLoop]: 455 mSDtfsCounter, 2084 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 2633 mSolverCounterSat, 634 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2194 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 634 IncrementalHoareTripleChecker+Valid, 2633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:31:48,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2194 Valid, 1575 Invalid, 3267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [634 Valid, 2633 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-11 20:31:48,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2024-11-11 20:31:48,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 553. [2024-11-11 20:31:48,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 422 states have (on average 1.6516587677725119) internal successors, (697), 438 states have internal predecessors, (697), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-11 20:31:48,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 906 transitions. [2024-11-11 20:31:48,354 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 906 transitions. Word has length 114 [2024-11-11 20:31:48,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:31:48,354 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 906 transitions. [2024-11-11 20:31:48,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:31:48,354 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 906 transitions. [2024-11-11 20:31:48,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-11 20:31:48,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:31:48,356 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:31:48,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 20:31:48,356 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:31:48,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:31:48,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1147547414, now seen corresponding path program 1 times [2024-11-11 20:31:48,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:31:48,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849480720] [2024-11-11 20:31:48,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:31:48,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:31:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:31:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:48,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:31:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:48,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:31:48,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-11 20:31:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-11 20:31:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-11 20:31:48,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-11 20:31:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:31:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:48,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-11 20:31:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:31:48,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:48,839 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:31:48,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:31:48,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849480720] [2024-11-11 20:31:48,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849480720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:31:48,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:31:48,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-11 20:31:48,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725227976] [2024-11-11 20:31:48,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:31:48,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 20:31:48,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:31:48,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 20:31:48,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:31:48,841 INFO L87 Difference]: Start difference. First operand 553 states and 906 transitions. Second operand has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:31:54,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:31:54,760 INFO L93 Difference]: Finished difference Result 1437 states and 2433 transitions. [2024-11-11 20:31:54,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 20:31:54,766 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 115 [2024-11-11 20:31:54,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:31:54,770 INFO L225 Difference]: With dead ends: 1437 [2024-11-11 20:31:54,770 INFO L226 Difference]: Without dead ends: 876 [2024-11-11 20:31:54,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-11 20:31:54,775 INFO L435 NwaCegarLoop]: 465 mSDtfsCounter, 1072 mSDsluCounter, 2600 mSDsCounter, 0 mSdLazyCounter, 5241 mSolverCounterSat, 249 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 3065 SdHoareTripleChecker+Invalid, 5490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 249 IncrementalHoareTripleChecker+Valid, 5241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-11 20:31:54,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 3065 Invalid, 5490 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [249 Valid, 5241 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-11 20:31:54,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2024-11-11 20:31:54,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 547. [2024-11-11 20:31:54,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 416 states have (on average 1.6442307692307692) internal successors, (684), 432 states have internal predecessors, (684), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-11 20:31:54,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 893 transitions. [2024-11-11 20:31:54,872 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 893 transitions. Word has length 115 [2024-11-11 20:31:54,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:31:54,872 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 893 transitions. [2024-11-11 20:31:54,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:31:54,873 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 893 transitions. [2024-11-11 20:31:54,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-11 20:31:54,876 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:31:54,876 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:31:54,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 20:31:54,876 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:31:54,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:31:54,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1473709408, now seen corresponding path program 1 times [2024-11-11 20:31:54,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:31:54,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325490754] [2024-11-11 20:31:54,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:31:54,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:31:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:31:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:55,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:31:55,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:31:55,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-11 20:31:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:31:55,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:31:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-11 20:31:55,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-11 20:31:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:55,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:31:55,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-11 20:31:55,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-11 20:31:55,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:31:55,342 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:31:55,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:31:55,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325490754] [2024-11-11 20:31:55,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325490754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:31:55,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:31:55,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:31:55,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743007328] [2024-11-11 20:31:55,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:31:55,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:31:55,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:31:55,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:31:55,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:31:55,345 INFO L87 Difference]: Start difference. First operand 547 states and 893 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:31:59,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:31:59,729 INFO L93 Difference]: Finished difference Result 1407 states and 2382 transitions. [2024-11-11 20:31:59,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:31:59,729 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 116 [2024-11-11 20:31:59,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:31:59,735 INFO L225 Difference]: With dead ends: 1407 [2024-11-11 20:31:59,735 INFO L226 Difference]: Without dead ends: 876 [2024-11-11 20:31:59,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:31:59,739 INFO L435 NwaCegarLoop]: 479 mSDtfsCounter, 1518 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 2654 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 1688 SdHoareTripleChecker+Invalid, 3092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 2654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-11 20:31:59,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 1688 Invalid, 3092 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 2654 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-11 20:31:59,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2024-11-11 20:31:59,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 547. [2024-11-11 20:31:59,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 416 states have (on average 1.6418269230769231) internal successors, (683), 432 states have internal predecessors, (683), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-11 20:31:59,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 892 transitions. [2024-11-11 20:31:59,831 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 892 transitions. Word has length 116 [2024-11-11 20:31:59,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:31:59,833 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 892 transitions. [2024-11-11 20:31:59,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:31:59,833 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 892 transitions. [2024-11-11 20:31:59,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-11 20:31:59,835 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:31:59,835 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:31:59,835 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 20:31:59,835 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:31:59,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:31:59,836 INFO L85 PathProgramCache]: Analyzing trace with hash -2082642509, now seen corresponding path program 1 times [2024-11-11 20:31:59,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:31:59,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86843580] [2024-11-11 20:31:59,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:31:59,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:31:59,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:00,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:32:00,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-11 20:32:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-11 20:32:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-11 20:32:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-11 20:32:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-11 20:32:00,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:00,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-11 20:32:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:32:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:00,328 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:32:00,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:32:00,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86843580] [2024-11-11 20:32:00,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86843580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:32:00,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:32:00,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-11 20:32:00,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090651885] [2024-11-11 20:32:00,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:32:00,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 20:32:00,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:32:00,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 20:32:00,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:32:00,331 INFO L87 Difference]: Start difference. First operand 547 states and 892 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:32:06,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:32:06,262 INFO L93 Difference]: Finished difference Result 1425 states and 2402 transitions. [2024-11-11 20:32:06,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 20:32:06,262 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 117 [2024-11-11 20:32:06,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:32:06,267 INFO L225 Difference]: With dead ends: 1425 [2024-11-11 20:32:06,267 INFO L226 Difference]: Without dead ends: 870 [2024-11-11 20:32:06,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-11 20:32:06,274 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 1035 mSDsluCounter, 2659 mSDsCounter, 0 mSdLazyCounter, 5155 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 5399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 5155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-11 20:32:06,275 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1145 Valid, 3133 Invalid, 5399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 5155 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-11 20:32:06,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-11 20:32:06,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 541. [2024-11-11 20:32:06,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 410 states have (on average 1.6341463414634145) internal successors, (670), 426 states have internal predecessors, (670), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-11 20:32:06,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 879 transitions. [2024-11-11 20:32:06,370 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 879 transitions. Word has length 117 [2024-11-11 20:32:06,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:32:06,370 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 879 transitions. [2024-11-11 20:32:06,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:32:06,370 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 879 transitions. [2024-11-11 20:32:06,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-11 20:32:06,371 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:32:06,372 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:32:06,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 20:32:06,372 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:32:06,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:32:06,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1133086113, now seen corresponding path program 1 times [2024-11-11 20:32:06,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:32:06,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808901776] [2024-11-11 20:32:06,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:06,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:32:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:06,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:32:06,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:06,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:06,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-11 20:32:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-11 20:32:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-11 20:32:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-11 20:32:06,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-11 20:32:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:06,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:06,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-11 20:32:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-11 20:32:06,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:06,911 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:32:06,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:32:06,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808901776] [2024-11-11 20:32:06,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808901776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:32:06,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:32:06,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:32:06,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028908810] [2024-11-11 20:32:06,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:32:06,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:32:06,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:32:06,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:32:06,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:32:06,913 INFO L87 Difference]: Start difference. First operand 541 states and 879 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:32:11,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:32:11,529 INFO L93 Difference]: Finished difference Result 1395 states and 2353 transitions. [2024-11-11 20:32:11,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-11 20:32:11,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 118 [2024-11-11 20:32:11,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:32:11,537 INFO L225 Difference]: With dead ends: 1395 [2024-11-11 20:32:11,537 INFO L226 Difference]: Without dead ends: 870 [2024-11-11 20:32:11,539 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:32:11,540 INFO L435 NwaCegarLoop]: 462 mSDtfsCounter, 985 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 2728 mSolverCounterSat, 247 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 1694 SdHoareTripleChecker+Invalid, 2975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 247 IncrementalHoareTripleChecker+Valid, 2728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-11 20:32:11,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 1694 Invalid, 2975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [247 Valid, 2728 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-11 20:32:11,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-11 20:32:11,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 541. [2024-11-11 20:32:11,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 410 states have (on average 1.6317073170731706) internal successors, (669), 426 states have internal predecessors, (669), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-11 20:32:11,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 878 transitions. [2024-11-11 20:32:11,651 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 878 transitions. Word has length 118 [2024-11-11 20:32:11,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:32:11,651 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 878 transitions. [2024-11-11 20:32:11,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:32:11,652 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 878 transitions. [2024-11-11 20:32:11,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-11 20:32:11,654 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:32:11,654 INFO L218 NwaCegarLoop]: trace histogram [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 20:32:11,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 20:32:11,654 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:32:11,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:32:11,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1508306665, now seen corresponding path program 1 times [2024-11-11 20:32:11,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:32:11,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168621610] [2024-11-11 20:32:11,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:11,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:32:11,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:11,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:32:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 20:32:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 20:32:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:32:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:32:12,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:32:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:12,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:32:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:32:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:12,114 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:32:12,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:32:12,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168621610] [2024-11-11 20:32:12,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168621610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:32:12,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:32:12,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-11 20:32:12,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534388370] [2024-11-11 20:32:12,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:32:12,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 20:32:12,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:32:12,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 20:32:12,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:32:12,115 INFO L87 Difference]: Start difference. First operand 541 states and 878 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:32:17,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:32:17,952 INFO L93 Difference]: Finished difference Result 1413 states and 2371 transitions. [2024-11-11 20:32:17,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-11 20:32:17,953 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2024-11-11 20:32:17,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:32:17,957 INFO L225 Difference]: With dead ends: 1413 [2024-11-11 20:32:17,957 INFO L226 Difference]: Without dead ends: 864 [2024-11-11 20:32:17,959 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-11 20:32:17,959 INFO L435 NwaCegarLoop]: 470 mSDtfsCounter, 1505 mSDsluCounter, 2580 mSDsCounter, 0 mSdLazyCounter, 5023 mSolverCounterSat, 432 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1615 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 5455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 432 IncrementalHoareTripleChecker+Valid, 5023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:32:17,960 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1615 Valid, 3050 Invalid, 5455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [432 Valid, 5023 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-11 20:32:17,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-11 20:32:18,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 535. [2024-11-11 20:32:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 404 states have (on average 1.6237623762376239) internal successors, (656), 420 states have internal predecessors, (656), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-11 20:32:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 865 transitions. [2024-11-11 20:32:18,057 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 865 transitions. Word has length 119 [2024-11-11 20:32:18,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:32:18,057 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 865 transitions. [2024-11-11 20:32:18,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:32:18,057 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 865 transitions. [2024-11-11 20:32:18,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-11 20:32:18,059 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:32:18,059 INFO L218 NwaCegarLoop]: trace histogram [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 20:32:18,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 20:32:18,059 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:32:18,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:32:18,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1649594378, now seen corresponding path program 1 times [2024-11-11 20:32:18,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:32:18,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161785407] [2024-11-11 20:32:18,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:18,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:32:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:18,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:32:18,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-11 20:32:18,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-11 20:32:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-11 20:32:18,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-11 20:32:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-11 20:32:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:18,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-11 20:32:18,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-11 20:32:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:18,509 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:32:18,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:32:18,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161785407] [2024-11-11 20:32:18,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161785407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:32:18,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:32:18,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-11 20:32:18,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358460888] [2024-11-11 20:32:18,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:32:18,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 20:32:18,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:32:18,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 20:32:18,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:32:18,511 INFO L87 Difference]: Start difference. First operand 535 states and 865 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:32:24,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:32:24,324 INFO L93 Difference]: Finished difference Result 1383 states and 2324 transitions. [2024-11-11 20:32:24,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 20:32:24,325 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2024-11-11 20:32:24,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:32:24,329 INFO L225 Difference]: With dead ends: 1383 [2024-11-11 20:32:24,329 INFO L226 Difference]: Without dead ends: 864 [2024-11-11 20:32:24,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-11 20:32:24,332 INFO L435 NwaCegarLoop]: 473 mSDtfsCounter, 952 mSDsluCounter, 2649 mSDsCounter, 0 mSdLazyCounter, 4884 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 3122 SdHoareTripleChecker+Invalid, 5127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 4884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-11 20:32:24,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 3122 Invalid, 5127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 4884 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-11 20:32:24,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-11 20:32:24,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 535. [2024-11-11 20:32:24,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 404 states have (on average 1.6212871287128714) internal successors, (655), 420 states have internal predecessors, (655), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-11 20:32:24,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 864 transitions. [2024-11-11 20:32:24,434 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 864 transitions. Word has length 119 [2024-11-11 20:32:24,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:32:24,435 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 864 transitions. [2024-11-11 20:32:24,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:32:24,435 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 864 transitions. [2024-11-11 20:32:24,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-11 20:32:24,436 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:32:24,437 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:32:24,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 20:32:24,437 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:32:24,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:32:24,437 INFO L85 PathProgramCache]: Analyzing trace with hash 671667431, now seen corresponding path program 1 times [2024-11-11 20:32:24,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:32:24,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600763639] [2024-11-11 20:32:24,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:24,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:32:24,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:24,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:32:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-11 20:32:24,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 20:32:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:32:24,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:32:24,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:32:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:24,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:32:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 20:32:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:24,884 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:32:24,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:32:24,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600763639] [2024-11-11 20:32:24,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600763639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:32:24,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:32:24,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-11 20:32:24,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898257815] [2024-11-11 20:32:24,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:32:24,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-11 20:32:24,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:32:24,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-11 20:32:24,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-11 20:32:24,886 INFO L87 Difference]: Start difference. First operand 535 states and 864 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:32:28,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:32:28,817 INFO L93 Difference]: Finished difference Result 1389 states and 2328 transitions. [2024-11-11 20:32:28,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-11 20:32:28,819 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 120 [2024-11-11 20:32:28,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:32:28,823 INFO L225 Difference]: With dead ends: 1389 [2024-11-11 20:32:28,823 INFO L226 Difference]: Without dead ends: 870 [2024-11-11 20:32:28,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:32:28,825 INFO L435 NwaCegarLoop]: 490 mSDtfsCounter, 1939 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 2501 mSolverCounterSat, 638 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 3139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 638 IncrementalHoareTripleChecker+Valid, 2501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-11 20:32:28,825 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 1684 Invalid, 3139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [638 Valid, 2501 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-11 20:32:28,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2024-11-11 20:32:28,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 541. [2024-11-11 20:32:28,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 410 states have (on average 1.6121951219512196) internal successors, (661), 426 states have internal predecessors, (661), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-11 20:32:28,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 870 transitions. [2024-11-11 20:32:28,947 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 870 transitions. Word has length 120 [2024-11-11 20:32:28,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:32:28,947 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 870 transitions. [2024-11-11 20:32:28,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-11 20:32:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 870 transitions. [2024-11-11 20:32:28,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-11 20:32:28,949 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:32:28,949 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 20:32:28,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 20:32:28,950 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:32:28,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:32:28,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1746817047, now seen corresponding path program 1 times [2024-11-11 20:32:28,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:32:28,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873509101] [2024-11-11 20:32:28,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:28,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:32:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:29,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:32:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:29,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-11 20:32:29,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-11 20:32:29,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-11 20:32:29,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:29,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-11 20:32:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-11 20:32:29,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-11 20:32:29,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-11 20:32:29,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:29,405 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:32:29,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:32:29,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873509101] [2024-11-11 20:32:29,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873509101] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:32:29,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:32:29,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-11 20:32:29,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609126385] [2024-11-11 20:32:29,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:32:29,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-11 20:32:29,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:32:29,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-11 20:32:29,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-11 20:32:29,407 INFO L87 Difference]: Start difference. First operand 541 states and 870 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:32:35,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:32:35,003 INFO L93 Difference]: Finished difference Result 1398 states and 2335 transitions. [2024-11-11 20:32:35,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-11 20:32:35,004 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2024-11-11 20:32:35,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:32:35,008 INFO L225 Difference]: With dead ends: 1398 [2024-11-11 20:32:35,008 INFO L226 Difference]: Without dead ends: 864 [2024-11-11 20:32:35,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-11 20:32:35,010 INFO L435 NwaCegarLoop]: 458 mSDtfsCounter, 962 mSDsluCounter, 2574 mSDsCounter, 0 mSdLazyCounter, 4838 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 3032 SdHoareTripleChecker+Invalid, 5083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 4838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:32:35,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 3032 Invalid, 5083 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 4838 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-11 20:32:35,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2024-11-11 20:32:35,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 535. [2024-11-11 20:32:35,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 404 states have (on average 1.618811881188119) internal successors, (654), 420 states have internal predecessors, (654), 106 states have call successors, (106), 26 states have call predecessors, (106), 24 states have return successors, (103), 101 states have call predecessors, (103), 103 states have call successors, (103) [2024-11-11 20:32:35,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 863 transitions. [2024-11-11 20:32:35,118 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 863 transitions. Word has length 120 [2024-11-11 20:32:35,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:32:35,119 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 863 transitions. [2024-11-11 20:32:35,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (16), 5 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:32:35,119 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 863 transitions. [2024-11-11 20:32:35,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-11 20:32:35,120 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:32:35,120 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-11 20:32:35,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 20:32:35,121 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:32:35,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:32:35,121 INFO L85 PathProgramCache]: Analyzing trace with hash 711722076, now seen corresponding path program 1 times [2024-11-11 20:32:35,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:32:35,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928016290] [2024-11-11 20:32:35,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:35,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:32:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:32:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:35,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:32:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-11 20:32:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:32:35,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:32:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:32:35,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:35,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:32:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-11 20:32:35,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 20:32:35,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:32:35,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928016290] [2024-11-11 20:32:35,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928016290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:32:35,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851023898] [2024-11-11 20:32:35,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:35,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:32:35,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:32:35,588 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 20:32:35,589 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 20:32:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:35,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 1634 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 20:32:35,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:32:35,974 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 20:32:35,978 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:32:35,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851023898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:32:35,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:32:35,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2024-11-11 20:32:35,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267087940] [2024-11-11 20:32:35,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:32:35,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:32:35,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:32:35,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:32:35,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:32:35,980 INFO L87 Difference]: Start difference. First operand 535 states and 863 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:32:36,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:32:36,233 INFO L93 Difference]: Finished difference Result 1516 states and 2477 transitions. [2024-11-11 20:32:36,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:32:36,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2024-11-11 20:32:36,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:32:36,238 INFO L225 Difference]: With dead ends: 1516 [2024-11-11 20:32:36,238 INFO L226 Difference]: Without dead ends: 999 [2024-11-11 20:32:36,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:32:36,241 INFO L435 NwaCegarLoop]: 1468 mSDtfsCounter, 786 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2227 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:32:36,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 2227 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:32:36,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-11 20:32:36,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 984. [2024-11-11 20:32:36,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 984 states, 750 states have (on average 1.632) internal successors, (1224), 781 states have internal predecessors, (1224), 187 states have call successors, (187), 47 states have call predecessors, (187), 46 states have return successors, (189), 181 states have call predecessors, (189), 184 states have call successors, (189) [2024-11-11 20:32:36,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 984 states to 984 states and 1600 transitions. [2024-11-11 20:32:36,439 INFO L78 Accepts]: Start accepts. Automaton has 984 states and 1600 transitions. Word has length 121 [2024-11-11 20:32:36,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:32:36,439 INFO L471 AbstractCegarLoop]: Abstraction has 984 states and 1600 transitions. [2024-11-11 20:32:36,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:32:36,440 INFO L276 IsEmpty]: Start isEmpty. Operand 984 states and 1600 transitions. [2024-11-11 20:32:36,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-11 20:32:36,442 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:32:36,442 INFO L218 NwaCegarLoop]: trace histogram [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 20:32:36,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-11 20:32:36,642 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,SelfDestructingSolverStorable11 [2024-11-11 20:32:36,643 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:32:36,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:32:36,644 INFO L85 PathProgramCache]: Analyzing trace with hash 2085059873, now seen corresponding path program 1 times [2024-11-11 20:32:36,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:32:36,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65456840] [2024-11-11 20:32:36,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:36,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:32:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:36,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:36,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:37,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:32:37,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:32:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-11 20:32:37,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-11 20:32:37,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-11 20:32:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-11 20:32:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:37,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-11 20:32:37,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-11 20:32:37,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,185 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 20:32:37,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:32:37,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65456840] [2024-11-11 20:32:37,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65456840] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:32:37,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670627431] [2024-11-11 20:32:37,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:37,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:32:37,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:32:37,187 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 20:32:37,188 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 20:32:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:37,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 1635 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 20:32:37,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:32:37,546 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 20:32:37,546 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:32:37,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670627431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:32:37,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:32:37,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2024-11-11 20:32:37,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480664872] [2024-11-11 20:32:37,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:32:37,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:32:37,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:32:37,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:32:37,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:32:37,547 INFO L87 Difference]: Start difference. First operand 984 states and 1600 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:32:37,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:32:37,853 INFO L93 Difference]: Finished difference Result 2414 states and 3953 transitions. [2024-11-11 20:32:37,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:32:37,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2024-11-11 20:32:37,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:32:37,861 INFO L225 Difference]: With dead ends: 2414 [2024-11-11 20:32:37,861 INFO L226 Difference]: Without dead ends: 1448 [2024-11-11 20:32:37,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:32:37,864 INFO L435 NwaCegarLoop]: 926 mSDtfsCounter, 788 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 1683 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:32:37,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 1683 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:32:37,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2024-11-11 20:32:38,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1400. [2024-11-11 20:32:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1400 states, 1069 states have (on average 1.6445275958840038) internal successors, (1758), 1115 states have internal predecessors, (1758), 265 states have call successors, (265), 65 states have call predecessors, (265), 65 states have return successors, (272), 258 states have call predecessors, (272), 262 states have call successors, (272) [2024-11-11 20:32:38,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1400 states to 1400 states and 2295 transitions. [2024-11-11 20:32:38,163 INFO L78 Accepts]: Start accepts. Automaton has 1400 states and 2295 transitions. Word has length 122 [2024-11-11 20:32:38,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:32:38,164 INFO L471 AbstractCegarLoop]: Abstraction has 1400 states and 2295 transitions. [2024-11-11 20:32:38,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-11 20:32:38,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1400 states and 2295 transitions. [2024-11-11 20:32:38,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-11 20:32:38,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:32:38,167 INFO L218 NwaCegarLoop]: trace histogram [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 20:32:38,181 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 20:32:38,367 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,SelfDestructingSolverStorable12 [2024-11-11 20:32:38,367 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:32:38,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:32:38,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1609599375, now seen corresponding path program 1 times [2024-11-11 20:32:38,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:32:38,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183037584] [2024-11-11 20:32:38,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:38,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:32:38,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:38,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:32:38,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,739 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:32:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-11 20:32:38,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:32:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:32:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:32:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:32:38,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:32:38,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,786 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-11 20:32:38,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-11 20:32:38,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:32:38,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183037584] [2024-11-11 20:32:38,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183037584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:32:38,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 20:32:38,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-11 20:32:38,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030327589] [2024-11-11 20:32:38,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:32:38,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-11 20:32:38,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:32:38,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-11 20:32:38,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-11 20:32:38,794 INFO L87 Difference]: Start difference. First operand 1400 states and 2295 transitions. Second operand has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-11 20:32:47,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:32:47,719 INFO L93 Difference]: Finished difference Result 5712 states and 10041 transitions. [2024-11-11 20:32:47,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-11 20:32:47,719 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) Word has length 124 [2024-11-11 20:32:47,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:32:47,742 INFO L225 Difference]: With dead ends: 5712 [2024-11-11 20:32:47,743 INFO L226 Difference]: Without dead ends: 4330 [2024-11-11 20:32:47,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2024-11-11 20:32:47,751 INFO L435 NwaCegarLoop]: 500 mSDtfsCounter, 3478 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 4730 mSolverCounterSat, 1165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3595 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 5895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1165 IncrementalHoareTripleChecker+Valid, 4730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-11 20:32:47,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3595 Valid, 2507 Invalid, 5895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1165 Valid, 4730 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-11 20:32:47,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4330 states. [2024-11-11 20:32:48,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4330 to 3313. [2024-11-11 20:32:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3313 states, 2385 states have (on average 1.618867924528302) internal successors, (3861), 2569 states have internal predecessors, (3861), 765 states have call successors, (765), 124 states have call predecessors, (765), 162 states have return successors, (1192), 763 states have call predecessors, (1192), 761 states have call successors, (1192) [2024-11-11 20:32:48,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3313 states to 3313 states and 5818 transitions. [2024-11-11 20:32:48,907 INFO L78 Accepts]: Start accepts. Automaton has 3313 states and 5818 transitions. Word has length 124 [2024-11-11 20:32:48,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:32:48,907 INFO L471 AbstractCegarLoop]: Abstraction has 3313 states and 5818 transitions. [2024-11-11 20:32:48,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.88888888888889) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (17), 6 states have call predecessors, (17), 3 states have return successors, (15), 4 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-11 20:32:48,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3313 states and 5818 transitions. [2024-11-11 20:32:48,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-11 20:32:48,911 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:32:48,911 INFO L218 NwaCegarLoop]: trace histogram [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 20:32:48,911 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 20:32:48,911 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:32:48,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:32:48,912 INFO L85 PathProgramCache]: Analyzing trace with hash -616203294, now seen corresponding path program 1 times [2024-11-11 20:32:48,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:32:48,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761055444] [2024-11-11 20:32:48,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:48,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:32:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:49,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:32:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:32:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-11 20:32:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:32:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:32:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:49,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:32:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:32:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-11 20:32:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-11 20:32:49,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,522 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-11 20:32:49,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:32:49,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761055444] [2024-11-11 20:32:49,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761055444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:32:49,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502095280] [2024-11-11 20:32:49,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:49,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:32:49,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:32:49,525 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 20:32:49,526 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 20:32:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:49,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 1653 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-11 20:32:49,805 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:32:49,906 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-11 20:32:49,906 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:32:49,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502095280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:32:49,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:32:49,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2024-11-11 20:32:49,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969019065] [2024-11-11 20:32:49,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:32:49,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:32:49,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:32:49,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:32:49,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:32:49,908 INFO L87 Difference]: Start difference. First operand 3313 states and 5818 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-11 20:32:52,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:32:52,037 INFO L93 Difference]: Finished difference Result 9649 states and 17147 transitions. [2024-11-11 20:32:52,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:32:52,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 125 [2024-11-11 20:32:52,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:32:52,072 INFO L225 Difference]: With dead ends: 9649 [2024-11-11 20:32:52,072 INFO L226 Difference]: Without dead ends: 6355 [2024-11-11 20:32:52,090 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-11 20:32:52,091 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 698 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-11 20:32:52,091 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 1598 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-11 20:32:52,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6355 states. [2024-11-11 20:32:54,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6355 to 6318. [2024-11-11 20:32:54,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6318 states, 4520 states have (on average 1.5884955752212389) internal successors, (7180), 4886 states have internal predecessors, (7180), 1478 states have call successors, (1478), 242 states have call predecessors, (1478), 319 states have return successors, (2423), 1477 states have call predecessors, (2423), 1472 states have call successors, (2423) [2024-11-11 20:32:54,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6318 states to 6318 states and 11081 transitions. [2024-11-11 20:32:54,318 INFO L78 Accepts]: Start accepts. Automaton has 6318 states and 11081 transitions. Word has length 125 [2024-11-11 20:32:54,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 20:32:54,318 INFO L471 AbstractCegarLoop]: Abstraction has 6318 states and 11081 transitions. [2024-11-11 20:32:54,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-11 20:32:54,319 INFO L276 IsEmpty]: Start isEmpty. Operand 6318 states and 11081 transitions. [2024-11-11 20:32:54,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-11 20:32:54,322 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 20:32:54,322 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 20:32:54,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-11 20:32:54,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:32:54,523 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 20:32:54,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 20:32:54,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1201905060, now seen corresponding path program 1 times [2024-11-11 20:32:54,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 20:32:54,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872311791] [2024-11-11 20:32:54,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:54,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 20:32:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-11 20:32:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-11 20:32:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-11 20:32:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-11 20:32:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-11 20:32:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-11 20:32:54,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-11 20:32:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-11 20:32:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-11 20:32:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-11 20:32:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-11 20:32:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-11 20:32:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:54,987 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-11 20:32:54,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 20:32:54,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872311791] [2024-11-11 20:32:54,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872311791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 20:32:54,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220716656] [2024-11-11 20:32:54,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 20:32:54,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 20:32:54,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 20:32:54,990 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 20:32:54,994 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 20:32:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 20:32:55,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-11 20:32:55,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-11 20:32:55,247 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-11 20:32:55,247 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-11 20:32:55,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220716656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 20:32:55,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-11 20:32:55,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 12 [2024-11-11 20:32:55,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137716513] [2024-11-11 20:32:55,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 20:32:55,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 20:32:55,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 20:32:55,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 20:32:55,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:32:55,249 INFO L87 Difference]: Start difference. First operand 6318 states and 11081 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-11 20:32:59,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 20:32:59,827 INFO L93 Difference]: Finished difference Result 18840 states and 33352 transitions. [2024-11-11 20:32:59,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 20:32:59,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 127 [2024-11-11 20:32:59,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 20:32:59,884 INFO L225 Difference]: With dead ends: 18840 [2024-11-11 20:32:59,885 INFO L226 Difference]: Without dead ends: 12543 [2024-11-11 20:32:59,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-11 20:32:59,909 INFO L435 NwaCegarLoop]: 864 mSDtfsCounter, 848 mSDsluCounter, 838 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 848 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-11 20:32:59,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [848 Valid, 1702 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-11 20:32:59,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12543 states.