./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec9_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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_spec9_product30.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 1493e9da3ad278988eda47a556733ebc5ac5411d3350d76fb478293d9e5d934e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:04:26,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:04:26,764 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:04:26,768 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:04:26,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:04:26,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:04:26,784 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:04:26,785 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:04:26,785 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:04:26,786 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:04:26,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:04:26,786 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:04:26,787 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:04:26,787 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:04:26,787 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:04:26,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:04:26,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:04:26,788 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:04:26,788 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:04:26,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:04:26,789 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:04:26,789 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:04:26,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:04:26,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:04:26,790 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:04:26,790 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:04:26,791 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:04:26,791 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:04:26,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:04:26,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:04:26,792 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:04:26,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:04:26,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:04:26,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:04:26,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:04:26,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:04:26,793 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:04:26,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:04:26,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:04:26,794 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:04:26,794 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:04:26,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:04:26,795 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1493e9da3ad278988eda47a556733ebc5ac5411d3350d76fb478293d9e5d934e [2024-11-18 14:04:26,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:04:27,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:04:27,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:04:27,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:04:27,024 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:04:27,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec9_product30.cil.c [2024-11-18 14:04:28,440 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:04:28,729 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:04:28,730 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product30.cil.c [2024-11-18 14:04:28,754 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d1b88728/766f4240017543e29f6defade8dfe69e/FLAGdc0e4153c [2024-11-18 14:04:28,770 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d1b88728/766f4240017543e29f6defade8dfe69e [2024-11-18 14:04:28,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:04:28,775 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:04:28,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:04:28,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:04:28,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:04:28,784 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:04:28" (1/1) ... [2024-11-18 14:04:28,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@523b1dde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:28, skipping insertion in model container [2024-11-18 14:04:28,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:04:28" (1/1) ... [2024-11-18 14:04:28,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:04:29,132 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_spec9_product30.cil.c[11768,11781] [2024-11-18 14:04:29,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:04:29,330 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:04:29,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-18 14:04:29,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [414] [2024-11-18 14:04:29,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [452] [2024-11-18 14:04:29,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [461] [2024-11-18 14:04:29,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [626] [2024-11-18 14:04:29,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [640] [2024-11-18 14:04:29,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [739] [2024-11-18 14:04:29,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [859] [2024-11-18 14:04:29,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2444] [2024-11-18 14:04:29,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3105] [2024-11-18 14:04:29,368 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_spec9_product30.cil.c[11768,11781] [2024-11-18 14:04:29,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:04:29,448 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:04:29,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29 WrapperNode [2024-11-18 14:04:29,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:04:29,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:04:29,450 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:04:29,450 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:04:29,456 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (1/1) ... [2024-11-18 14:04:29,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (1/1) ... [2024-11-18 14:04:29,528 INFO L138 Inliner]: procedures = 95, calls = 344, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 872 [2024-11-18 14:04:29,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:04:29,529 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:04:29,529 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:04:29,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:04:29,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (1/1) ... [2024-11-18 14:04:29,542 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (1/1) ... [2024-11-18 14:04:29,546 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (1/1) ... [2024-11-18 14:04:29,567 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]. [2024-11-18 14:04:29,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (1/1) ... [2024-11-18 14:04:29,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (1/1) ... [2024-11-18 14:04:29,589 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (1/1) ... [2024-11-18 14:04:29,613 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (1/1) ... [2024-11-18 14:04:29,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (1/1) ... [2024-11-18 14:04:29,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (1/1) ... [2024-11-18 14:04:29,635 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:04:29,636 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:04:29,636 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:04:29,637 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:04:29,637 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (1/1) ... [2024-11-18 14:04:29,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:04:29,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:04:29,679 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) [2024-11-18 14:04:29,689 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 [2024-11-18 14:04:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:04:29,735 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-18 14:04:29,735 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-18 14:04:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-18 14:04:29,736 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-18 14:04:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-18 14:04:29,736 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-18 14:04:29,736 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-18 14:04:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-18 14:04:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-18 14:04:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-18 14:04:29,737 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-11-18 14:04:29,737 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-11-18 14:04:29,738 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:04:29,738 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:04:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:04:29,739 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:04:29,739 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-18 14:04:29,739 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-18 14:04:29,740 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-18 14:04:29,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-18 14:04:29,741 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-18 14:04:29,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-18 14:04:29,741 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-18 14:04:29,741 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-18 14:04:29,741 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-18 14:04:29,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-18 14:04:29,741 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-18 14:04:29,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-18 14:04:29,742 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-18 14:04:29,742 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-18 14:04:29,742 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-18 14:04:29,742 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-18 14:04:29,742 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-18 14:04:29,742 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-18 14:04:29,742 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-18 14:04:29,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-18 14:04:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-18 14:04:29,743 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-18 14:04:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-11-18 14:04:29,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-11-18 14:04:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:04:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:04:29,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:04:29,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:04:29,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 14:04:29,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 14:04:29,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 14:04:29,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 14:04:29,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 14:04:29,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 14:04:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 14:04:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 14:04:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 14:04:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 14:04:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 14:04:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 14:04:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 14:04:29,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-18 14:04:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-18 14:04:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-18 14:04:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-18 14:04:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-18 14:04:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-18 14:04:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-18 14:04:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-18 14:04:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-18 14:04:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-18 14:04:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-18 14:04:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2024-11-18 14:04:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2024-11-18 14:04:29,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:04:29,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:04:29,747 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-18 14:04:29,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-18 14:04:29,909 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:04:29,911 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:04:30,920 INFO L? ?]: Removed 455 outVars from TransFormulas that were not future-live. [2024-11-18 14:04:30,920 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:04:30,948 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:04:30,948 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:04:30,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:30 BoogieIcfgContainer [2024-11-18 14:04:30,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:04:30,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:04:30,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:04:30,957 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:04:30,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:04:28" (1/3) ... [2024-11-18 14:04:30,958 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0a823b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:04:30, skipping insertion in model container [2024-11-18 14:04:30,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:04:29" (2/3) ... [2024-11-18 14:04:30,962 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0a823b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:04:30, skipping insertion in model container [2024-11-18 14:04:30,962 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:04:30" (3/3) ... [2024-11-18 14:04:30,963 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product30.cil.c [2024-11-18 14:04:30,981 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:04:30,981 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:04:31,045 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:04:31,051 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;@42a0efb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:04:31,055 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:04:31,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 576 states, 452 states have (on average 1.6924778761061947) internal successors, (765), 475 states have internal predecessors, (765), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-18 14:04:31,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-18 14:04:31,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:31,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:31,079 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:31,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:31,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1316381237, now seen corresponding path program 1 times [2024-11-18 14:04:31,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:31,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475261985] [2024-11-18 14:04:31,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:31,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:31,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:31,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:31,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475261985] [2024-11-18 14:04:31,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475261985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:31,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:31,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:31,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598012261] [2024-11-18 14:04:31,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:31,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:31,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:31,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:31,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:31,528 INFO L87 Difference]: Start difference. First operand has 576 states, 452 states have (on average 1.6924778761061947) internal successors, (765), 475 states have internal predecessors, (765), 96 states have call successors, (96), 26 states have call predecessors, (96), 26 states have return successors, (96), 89 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:31,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:31,680 INFO L93 Difference]: Finished difference Result 1132 states and 1889 transitions. [2024-11-18 14:04:31,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:31,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2024-11-18 14:04:31,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:31,706 INFO L225 Difference]: With dead ends: 1132 [2024-11-18 14:04:31,706 INFO L226 Difference]: Without dead ends: 568 [2024-11-18 14:04:31,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:31,716 INFO L432 NwaCegarLoop]: 936 mSDtfsCounter, 5 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2804 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:31,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2804 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:31,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-18 14:04:31,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-18 14:04:31,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 446 states have (on average 1.688340807174888) internal successors, (753), 467 states have internal predecessors, (753), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:31,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 940 transitions. [2024-11-18 14:04:31,814 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 940 transitions. Word has length 62 [2024-11-18 14:04:31,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:31,815 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 940 transitions. [2024-11-18 14:04:31,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 940 transitions. [2024-11-18 14:04:31,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 14:04:31,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:31,820 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:31,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:04:31,821 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:31,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:31,822 INFO L85 PathProgramCache]: Analyzing trace with hash 2014226098, now seen corresponding path program 1 times [2024-11-18 14:04:31,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:31,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308526929] [2024-11-18 14:04:31,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:31,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:32,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:32,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308526929] [2024-11-18 14:04:32,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308526929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:32,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:32,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:32,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884726370] [2024-11-18 14:04:32,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:32,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:32,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:32,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:32,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:32,007 INFO L87 Difference]: Start difference. First operand 568 states and 940 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:32,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:32,057 INFO L93 Difference]: Finished difference Result 1118 states and 1857 transitions. [2024-11-18 14:04:32,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:32,058 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2024-11-18 14:04:32,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:32,087 INFO L225 Difference]: With dead ends: 1118 [2024-11-18 14:04:32,088 INFO L226 Difference]: Without dead ends: 568 [2024-11-18 14:04:32,090 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:32,091 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 4 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:32,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2783 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:32,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-18 14:04:32,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-18 14:04:32,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 446 states have (on average 1.6860986547085202) internal successors, (752), 467 states have internal predecessors, (752), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:32,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 939 transitions. [2024-11-18 14:04:32,135 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 939 transitions. Word has length 65 [2024-11-18 14:04:32,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:32,136 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 939 transitions. [2024-11-18 14:04:32,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:32,137 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 939 transitions. [2024-11-18 14:04:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-18 14:04:32,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:32,140 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:32,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:04:32,141 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:32,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:32,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1200980869, now seen corresponding path program 1 times [2024-11-18 14:04:32,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:32,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111377972] [2024-11-18 14:04:32,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:32,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:32,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:32,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:32,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111377972] [2024-11-18 14:04:32,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111377972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:32,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:32,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:32,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281722294] [2024-11-18 14:04:32,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:32,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:32,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:32,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:32,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:32,326 INFO L87 Difference]: Start difference. First operand 568 states and 939 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:32,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:32,422 INFO L93 Difference]: Finished difference Result 1118 states and 1856 transitions. [2024-11-18 14:04:32,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:32,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2024-11-18 14:04:32,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:32,430 INFO L225 Difference]: With dead ends: 1118 [2024-11-18 14:04:32,430 INFO L226 Difference]: Without dead ends: 568 [2024-11-18 14:04:32,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:32,434 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 3 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:32,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2783 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:32,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-18 14:04:32,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-18 14:04:32,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 446 states have (on average 1.6838565022421526) internal successors, (751), 467 states have internal predecessors, (751), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:32,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 938 transitions. [2024-11-18 14:04:32,460 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 938 transitions. Word has length 66 [2024-11-18 14:04:32,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:32,460 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 938 transitions. [2024-11-18 14:04:32,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:32,460 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 938 transitions. [2024-11-18 14:04:32,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-18 14:04:32,462 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:32,462 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:32,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:04:32,463 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:32,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:32,463 INFO L85 PathProgramCache]: Analyzing trace with hash 541895310, now seen corresponding path program 1 times [2024-11-18 14:04:32,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:32,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550333891] [2024-11-18 14:04:32,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:32,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:32,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:32,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550333891] [2024-11-18 14:04:32,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550333891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:32,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:32,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:32,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727752690] [2024-11-18 14:04:32,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:32,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:32,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:32,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:32,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:32,607 INFO L87 Difference]: Start difference. First operand 568 states and 938 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:32,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:32,653 INFO L93 Difference]: Finished difference Result 1118 states and 1855 transitions. [2024-11-18 14:04:32,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:32,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2024-11-18 14:04:32,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:32,660 INFO L225 Difference]: With dead ends: 1118 [2024-11-18 14:04:32,660 INFO L226 Difference]: Without dead ends: 568 [2024-11-18 14:04:32,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:32,665 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 2 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:32,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2783 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:32,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-18 14:04:32,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-18 14:04:32,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 446 states have (on average 1.6816143497757847) internal successors, (750), 467 states have internal predecessors, (750), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:32,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 937 transitions. [2024-11-18 14:04:32,696 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 937 transitions. Word has length 67 [2024-11-18 14:04:32,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:32,696 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 937 transitions. [2024-11-18 14:04:32,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:32,697 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 937 transitions. [2024-11-18 14:04:32,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 14:04:32,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:32,699 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:32,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:04:32,700 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:32,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:32,701 INFO L85 PathProgramCache]: Analyzing trace with hash 366792225, now seen corresponding path program 1 times [2024-11-18 14:04:32,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:32,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377829403] [2024-11-18 14:04:32,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:32,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:32,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:32,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:32,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:32,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377829403] [2024-11-18 14:04:32,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377829403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:32,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:32,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:32,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933693337] [2024-11-18 14:04:32,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:32,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:32,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:32,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:32,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:32,820 INFO L87 Difference]: Start difference. First operand 568 states and 937 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:32,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:32,864 INFO L93 Difference]: Finished difference Result 1118 states and 1854 transitions. [2024-11-18 14:04:32,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:32,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-11-18 14:04:32,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:32,868 INFO L225 Difference]: With dead ends: 1118 [2024-11-18 14:04:32,869 INFO L226 Difference]: Without dead ends: 568 [2024-11-18 14:04:32,871 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:32,873 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 1 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:32,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2783 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:32,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-18 14:04:32,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-18 14:04:32,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 446 states have (on average 1.6793721973094171) internal successors, (749), 467 states have internal predecessors, (749), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:32,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 936 transitions. [2024-11-18 14:04:32,892 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 936 transitions. Word has length 68 [2024-11-18 14:04:32,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:32,893 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 936 transitions. [2024-11-18 14:04:32,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:32,893 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 936 transitions. [2024-11-18 14:04:32,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 14:04:32,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:32,895 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:32,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:04:32,896 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:32,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:32,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1984723350, now seen corresponding path program 1 times [2024-11-18 14:04:32,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:32,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469905603] [2024-11-18 14:04:32,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:32,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:33,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:33,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:33,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469905603] [2024-11-18 14:04:33,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469905603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:33,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:33,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:04:33,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893709537] [2024-11-18 14:04:33,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:33,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 14:04:33,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:33,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 14:04:33,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:04:33,104 INFO L87 Difference]: Start difference. First operand 568 states and 936 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:04:33,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:33,204 INFO L93 Difference]: Finished difference Result 1084 states and 1786 transitions. [2024-11-18 14:04:33,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:04:33,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 69 [2024-11-18 14:04:33,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:33,208 INFO L225 Difference]: With dead ends: 1084 [2024-11-18 14:04:33,208 INFO L226 Difference]: Without dead ends: 583 [2024-11-18 14:04:33,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:04:33,211 INFO L432 NwaCegarLoop]: 924 mSDtfsCounter, 91 mSDsluCounter, 6385 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 7309 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:33,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 7309 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:04:33,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-18 14:04:33,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 581. [2024-11-18 14:04:33,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 456 states have (on average 1.6754385964912282) internal successors, (764), 479 states have internal predecessors, (764), 97 states have call successors, (97), 26 states have call predecessors, (97), 27 states have return successors, (94), 89 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-18 14:04:33,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 955 transitions. [2024-11-18 14:04:33,230 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 955 transitions. Word has length 69 [2024-11-18 14:04:33,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:33,231 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 955 transitions. [2024-11-18 14:04:33,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:04:33,231 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 955 transitions. [2024-11-18 14:04:33,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 14:04:33,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:33,232 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:33,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:04:33,233 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:33,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:33,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1215553335, now seen corresponding path program 1 times [2024-11-18 14:04:33,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:33,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181730001] [2024-11-18 14:04:33,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:33,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:33,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:33,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:33,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181730001] [2024-11-18 14:04:33,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181730001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:33,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:33,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:04:33,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306346565] [2024-11-18 14:04:33,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:33,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:04:33,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:33,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:04:33,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:33,319 INFO L87 Difference]: Start difference. First operand 581 states and 955 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:33,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:33,345 INFO L93 Difference]: Finished difference Result 1136 states and 1880 transitions. [2024-11-18 14:04:33,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:04:33,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2024-11-18 14:04:33,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:33,349 INFO L225 Difference]: With dead ends: 1136 [2024-11-18 14:04:33,349 INFO L226 Difference]: Without dead ends: 562 [2024-11-18 14:04:33,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:04:33,351 INFO L432 NwaCegarLoop]: 930 mSDtfsCounter, 0 mSDsluCounter, 1855 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2785 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:33,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2785 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:33,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-18 14:04:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2024-11-18 14:04:33,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 440 states have (on average 1.6704545454545454) internal successors, (735), 461 states have internal predecessors, (735), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:33,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 922 transitions. [2024-11-18 14:04:33,364 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 922 transitions. Word has length 69 [2024-11-18 14:04:33,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:33,365 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 922 transitions. [2024-11-18 14:04:33,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:33,365 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 922 transitions. [2024-11-18 14:04:33,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-18 14:04:33,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:33,366 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:33,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:04:33,367 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:33,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:33,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1693135546, now seen corresponding path program 1 times [2024-11-18 14:04:33,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:33,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071322396] [2024-11-18 14:04:33,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:33,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:33,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:33,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:33,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:33,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071322396] [2024-11-18 14:04:33,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071322396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:33,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:33,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:33,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662118817] [2024-11-18 14:04:33,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:33,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:33,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:33,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:33,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:33,490 INFO L87 Difference]: Start difference. First operand 562 states and 922 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:33,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:33,655 INFO L93 Difference]: Finished difference Result 1081 states and 1778 transitions. [2024-11-18 14:04:33,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:04:33,655 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2024-11-18 14:04:33,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:33,659 INFO L225 Difference]: With dead ends: 1081 [2024-11-18 14:04:33,659 INFO L226 Difference]: Without dead ends: 571 [2024-11-18 14:04:33,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:33,662 INFO L432 NwaCegarLoop]: 879 mSDtfsCounter, 55 mSDsluCounter, 3487 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4366 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:33,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4366 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:04:33,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-18 14:04:33,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 562. [2024-11-18 14:04:33,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 440 states have (on average 1.6613636363636364) internal successors, (731), 461 states have internal predecessors, (731), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:33,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 918 transitions. [2024-11-18 14:04:33,677 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 918 transitions. Word has length 70 [2024-11-18 14:04:33,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:33,677 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 918 transitions. [2024-11-18 14:04:33,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:33,677 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 918 transitions. [2024-11-18 14:04:33,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-18 14:04:33,678 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:33,678 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:33,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:04:33,678 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:33,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:33,679 INFO L85 PathProgramCache]: Analyzing trace with hash 549919181, now seen corresponding path program 1 times [2024-11-18 14:04:33,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:33,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720244422] [2024-11-18 14:04:33,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:33,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:33,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:33,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:33,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720244422] [2024-11-18 14:04:33,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720244422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:33,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:33,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:33,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365330135] [2024-11-18 14:04:33,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:33,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:33,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:33,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:33,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:33,787 INFO L87 Difference]: Start difference. First operand 562 states and 918 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:33,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:33,917 INFO L93 Difference]: Finished difference Result 1081 states and 1774 transitions. [2024-11-18 14:04:33,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:04:33,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2024-11-18 14:04:33,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:33,921 INFO L225 Difference]: With dead ends: 1081 [2024-11-18 14:04:33,921 INFO L226 Difference]: Without dead ends: 571 [2024-11-18 14:04:33,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:33,925 INFO L432 NwaCegarLoop]: 879 mSDtfsCounter, 54 mSDsluCounter, 3487 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4366 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:33,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4366 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:04:33,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-18 14:04:33,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 562. [2024-11-18 14:04:33,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 440 states have (on average 1.6522727272727273) internal successors, (727), 461 states have internal predecessors, (727), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:33,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 914 transitions. [2024-11-18 14:04:33,941 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 914 transitions. Word has length 71 [2024-11-18 14:04:33,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:33,941 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 914 transitions. [2024-11-18 14:04:33,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:33,941 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 914 transitions. [2024-11-18 14:04:33,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-18 14:04:33,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:33,942 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:33,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:04:33,943 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:33,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:33,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1451371179, now seen corresponding path program 1 times [2024-11-18 14:04:33,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:33,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248766268] [2024-11-18 14:04:33,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:33,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:34,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:34,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248766268] [2024-11-18 14:04:34,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248766268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:34,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:34,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:34,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771256178] [2024-11-18 14:04:34,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:34,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:34,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:34,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:34,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:34,046 INFO L87 Difference]: Start difference. First operand 562 states and 914 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:34,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:34,186 INFO L93 Difference]: Finished difference Result 1081 states and 1770 transitions. [2024-11-18 14:04:34,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:04:34,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2024-11-18 14:04:34,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:34,190 INFO L225 Difference]: With dead ends: 1081 [2024-11-18 14:04:34,191 INFO L226 Difference]: Without dead ends: 571 [2024-11-18 14:04:34,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:34,193 INFO L432 NwaCegarLoop]: 878 mSDtfsCounter, 53 mSDsluCounter, 3470 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4348 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:34,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4348 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:04:34,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-18 14:04:34,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 562. [2024-11-18 14:04:34,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 440 states have (on average 1.643181818181818) internal successors, (723), 461 states have internal predecessors, (723), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:34,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 910 transitions. [2024-11-18 14:04:34,211 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 910 transitions. Word has length 72 [2024-11-18 14:04:34,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:34,211 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 910 transitions. [2024-11-18 14:04:34,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:34,211 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 910 transitions. [2024-11-18 14:04:34,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-18 14:04:34,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:34,212 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:34,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:04:34,213 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:34,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:34,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1273587499, now seen corresponding path program 1 times [2024-11-18 14:04:34,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:34,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143499393] [2024-11-18 14:04:34,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:34,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:34,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:34,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:34,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:34,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143499393] [2024-11-18 14:04:34,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143499393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:34,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:34,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:04:34,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794792716] [2024-11-18 14:04:34,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:34,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:04:34,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:34,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:04:34,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:34,375 INFO L87 Difference]: Start difference. First operand 562 states and 910 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:04:34,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:34,435 INFO L93 Difference]: Finished difference Result 1072 states and 1752 transitions. [2024-11-18 14:04:34,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:04:34,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 72 [2024-11-18 14:04:34,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:34,440 INFO L225 Difference]: With dead ends: 1072 [2024-11-18 14:04:34,440 INFO L226 Difference]: Without dead ends: 541 [2024-11-18 14:04:34,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:04:34,443 INFO L432 NwaCegarLoop]: 899 mSDtfsCounter, 84 mSDsluCounter, 4422 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5321 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:34,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5321 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:34,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-18 14:04:34,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-18 14:04:34,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 419 states have (on average 1.6443914081145585) internal successors, (689), 440 states have internal predecessors, (689), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:34,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 876 transitions. [2024-11-18 14:04:34,469 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 876 transitions. Word has length 72 [2024-11-18 14:04:34,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:34,470 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 876 transitions. [2024-11-18 14:04:34,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:04:34,474 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 876 transitions. [2024-11-18 14:04:34,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-18 14:04:34,475 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:34,475 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:34,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:04:34,476 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:34,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:34,476 INFO L85 PathProgramCache]: Analyzing trace with hash -582155758, now seen corresponding path program 1 times [2024-11-18 14:04:34,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:34,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851290149] [2024-11-18 14:04:34,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:34,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:34,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:34,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:34,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851290149] [2024-11-18 14:04:34,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851290149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:34,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:34,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:34,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407113049] [2024-11-18 14:04:34,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:34,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:34,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:34,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:34,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:34,613 INFO L87 Difference]: Start difference. First operand 541 states and 876 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:34,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:34,670 INFO L93 Difference]: Finished difference Result 1051 states and 1718 transitions. [2024-11-18 14:04:34,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:04:34,671 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2024-11-18 14:04:34,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:34,675 INFO L225 Difference]: With dead ends: 1051 [2024-11-18 14:04:34,675 INFO L226 Difference]: Without dead ends: 541 [2024-11-18 14:04:34,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:34,701 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 17 mSDsluCounter, 3427 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4286 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:34,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4286 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:34,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-18 14:04:34,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-18 14:04:34,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 419 states have (on average 1.6420047732696896) internal successors, (688), 440 states have internal predecessors, (688), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:34,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 875 transitions. [2024-11-18 14:04:34,720 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 875 transitions. Word has length 73 [2024-11-18 14:04:34,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:34,720 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 875 transitions. [2024-11-18 14:04:34,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:34,721 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 875 transitions. [2024-11-18 14:04:34,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-18 14:04:34,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:34,722 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:34,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:04:34,722 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:34,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:34,723 INFO L85 PathProgramCache]: Analyzing trace with hash 889250832, now seen corresponding path program 1 times [2024-11-18 14:04:34,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:34,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063674955] [2024-11-18 14:04:34,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:34,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:34,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:34,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:34,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063674955] [2024-11-18 14:04:34,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063674955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:34,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:34,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:34,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358427226] [2024-11-18 14:04:34,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:34,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:34,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:34,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:34,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:34,843 INFO L87 Difference]: Start difference. First operand 541 states and 875 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:34,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:34,901 INFO L93 Difference]: Finished difference Result 1051 states and 1717 transitions. [2024-11-18 14:04:34,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:04:34,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2024-11-18 14:04:34,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:34,905 INFO L225 Difference]: With dead ends: 1051 [2024-11-18 14:04:34,905 INFO L226 Difference]: Without dead ends: 541 [2024-11-18 14:04:34,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:34,908 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 16 mSDsluCounter, 3427 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4286 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:34,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4286 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:34,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-18 14:04:34,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-18 14:04:34,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 419 states have (on average 1.639618138424821) internal successors, (687), 440 states have internal predecessors, (687), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:34,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 874 transitions. [2024-11-18 14:04:34,923 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 874 transitions. Word has length 74 [2024-11-18 14:04:34,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:34,924 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 874 transitions. [2024-11-18 14:04:34,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-18 14:04:34,924 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 874 transitions. [2024-11-18 14:04:34,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-18 14:04:34,925 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:34,925 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:34,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:04:34,926 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:34,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:34,926 INFO L85 PathProgramCache]: Analyzing trace with hash -655552937, now seen corresponding path program 1 times [2024-11-18 14:04:34,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:34,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597027796] [2024-11-18 14:04:34,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:34,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:35,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:35,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:35,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597027796] [2024-11-18 14:04:35,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597027796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:35,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:35,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:04:35,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308852908] [2024-11-18 14:04:35,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:35,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:04:35,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:35,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:04:35,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:04:35,097 INFO L87 Difference]: Start difference. First operand 541 states and 874 transitions. Second operand has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:04:35,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:35,172 INFO L93 Difference]: Finished difference Result 1045 states and 1705 transitions. [2024-11-18 14:04:35,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:04:35,172 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2024-11-18 14:04:35,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:35,176 INFO L225 Difference]: With dead ends: 1045 [2024-11-18 14:04:35,176 INFO L226 Difference]: Without dead ends: 541 [2024-11-18 14:04:35,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:04:35,178 INFO L432 NwaCegarLoop]: 858 mSDtfsCounter, 6 mSDsluCounter, 6842 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7700 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:35,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7700 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:04:35,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-18 14:04:35,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-18 14:04:35,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 419 states have (on average 1.6372315035799523) internal successors, (686), 440 states have internal predecessors, (686), 96 states have call successors, (96), 26 states have call predecessors, (96), 25 states have return successors, (91), 88 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-18 14:04:35,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 873 transitions. [2024-11-18 14:04:35,218 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 873 transitions. Word has length 75 [2024-11-18 14:04:35,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:35,219 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 873 transitions. [2024-11-18 14:04:35,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-18 14:04:35,220 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 873 transitions. [2024-11-18 14:04:35,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-18 14:04:35,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:35,221 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:35,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:04:35,221 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:35,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:35,221 INFO L85 PathProgramCache]: Analyzing trace with hash -21779899, now seen corresponding path program 1 times [2024-11-18 14:04:35,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:35,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789792594] [2024-11-18 14:04:35,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:35,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:35,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:35,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:35,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789792594] [2024-11-18 14:04:35,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789792594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:35,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:35,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:35,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782665744] [2024-11-18 14:04:35,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:35,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:35,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:35,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:35,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:35,396 INFO L87 Difference]: Start difference. First operand 541 states and 873 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 6 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-18 14:04:37,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:37,233 INFO L93 Difference]: Finished difference Result 1668 states and 2754 transitions. [2024-11-18 14:04:37,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:04:37,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 6 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) Word has length 76 [2024-11-18 14:04:37,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:37,242 INFO L225 Difference]: With dead ends: 1668 [2024-11-18 14:04:37,242 INFO L226 Difference]: Without dead ends: 1172 [2024-11-18 14:04:37,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:04:37,246 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 3258 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3322 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 2677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 744 IncrementalHoareTripleChecker+Valid, 1933 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:37,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3322 Valid, 962 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [744 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-18 14:04:37,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2024-11-18 14:04:37,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1040. [2024-11-18 14:04:37,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 813 states have (on average 1.6580565805658056) internal successors, (1348), 843 states have internal predecessors, (1348), 179 states have call successors, (179), 46 states have call predecessors, (179), 47 states have return successors, (181), 163 states have call predecessors, (181), 174 states have call successors, (181) [2024-11-18 14:04:37,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1708 transitions. [2024-11-18 14:04:37,290 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1708 transitions. Word has length 76 [2024-11-18 14:04:37,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:37,290 INFO L471 AbstractCegarLoop]: Abstraction has 1040 states and 1708 transitions. [2024-11-18 14:04:37,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 6 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2024-11-18 14:04:37,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1708 transitions. [2024-11-18 14:04:37,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-18 14:04:37,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:37,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:37,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:04:37,295 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:37,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:37,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1863411271, now seen corresponding path program 1 times [2024-11-18 14:04:37,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:37,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131811081] [2024-11-18 14:04:37,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:37,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:37,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:37,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:37,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:37,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131811081] [2024-11-18 14:04:37,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131811081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:37,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:37,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:04:37,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990288320] [2024-11-18 14:04:37,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:37,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:04:37,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:37,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:04:37,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:04:37,681 INFO L87 Difference]: Start difference. First operand 1040 states and 1708 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-18 14:04:39,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:39,077 INFO L93 Difference]: Finished difference Result 2043 states and 3418 transitions. [2024-11-18 14:04:39,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:04:39,078 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 115 [2024-11-18 14:04:39,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:39,084 INFO L225 Difference]: With dead ends: 2043 [2024-11-18 14:04:39,084 INFO L226 Difference]: Without dead ends: 1048 [2024-11-18 14:04:39,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:04:39,089 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 1333 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 2820 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1333 SdHoareTripleChecker+Valid, 1563 SdHoareTripleChecker+Invalid, 3212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 2820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:39,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 1563 Invalid, 3212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 2820 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 14:04:39,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-11-18 14:04:39,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1048. [2024-11-18 14:04:39,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 819 states have (on average 1.6532356532356531) internal successors, (1354), 849 states have internal predecessors, (1354), 179 states have call successors, (179), 46 states have call predecessors, (179), 49 states have return successors, (213), 165 states have call predecessors, (213), 174 states have call successors, (213) [2024-11-18 14:04:39,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1746 transitions. [2024-11-18 14:04:39,131 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1746 transitions. Word has length 115 [2024-11-18 14:04:39,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:39,132 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1746 transitions. [2024-11-18 14:04:39,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 7 states have internal predecessors, (88), 5 states have call successors, (14), 3 states have call predecessors, (14), 4 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-18 14:04:39,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1746 transitions. [2024-11-18 14:04:39,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-18 14:04:39,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:39,135 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:39,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:04:39,135 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:39,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:39,136 INFO L85 PathProgramCache]: Analyzing trace with hash -813515636, now seen corresponding path program 1 times [2024-11-18 14:04:39,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:39,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993653082] [2024-11-18 14:04:39,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:39,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:04:39,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:39,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993653082] [2024-11-18 14:04:39,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993653082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:39,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:39,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 14:04:39,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630545655] [2024-11-18 14:04:39,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:39,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 14:04:39,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:39,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 14:04:39,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:04:39,376 INFO L87 Difference]: Start difference. First operand 1048 states and 1746 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-18 14:04:42,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:42,284 INFO L93 Difference]: Finished difference Result 3843 states and 6576 transitions. [2024-11-18 14:04:42,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 14:04:42,285 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 116 [2024-11-18 14:04:42,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:42,305 INFO L225 Difference]: With dead ends: 3843 [2024-11-18 14:04:42,305 INFO L226 Difference]: Without dead ends: 2840 [2024-11-18 14:04:42,314 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-18 14:04:42,315 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 2443 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 5051 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2515 SdHoareTripleChecker+Valid, 2384 SdHoareTripleChecker+Invalid, 5673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 5051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:42,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2515 Valid, 2384 Invalid, 5673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 5051 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-18 14:04:42,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2024-11-18 14:04:42,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 2718. [2024-11-18 14:04:42,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2718 states, 2112 states have (on average 1.6477272727272727) internal successors, (3480), 2192 states have internal predecessors, (3480), 470 states have call successors, (470), 125 states have call predecessors, (470), 135 states have return successors, (545), 435 states have call predecessors, (545), 465 states have call successors, (545) [2024-11-18 14:04:42,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 4495 transitions. [2024-11-18 14:04:42,423 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 4495 transitions. Word has length 116 [2024-11-18 14:04:42,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:42,423 INFO L471 AbstractCegarLoop]: Abstraction has 2718 states and 4495 transitions. [2024-11-18 14:04:42,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 5 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-18 14:04:42,424 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 4495 transitions. [2024-11-18 14:04:42,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-18 14:04:42,426 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:42,426 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:42,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:04:42,426 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:42,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:42,427 INFO L85 PathProgramCache]: Analyzing trace with hash 824600177, now seen corresponding path program 1 times [2024-11-18 14:04:42,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:42,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877675759] [2024-11-18 14:04:42,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:42,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:42,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:04:42,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:42,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877675759] [2024-11-18 14:04:42,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877675759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:42,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:42,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 14:04:42,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830262541] [2024-11-18 14:04:42,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:42,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 14:04:42,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:42,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 14:04:42,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-18 14:04:42,695 INFO L87 Difference]: Start difference. First operand 2718 states and 4495 transitions. Second operand has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-18 14:04:46,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:46,885 INFO L93 Difference]: Finished difference Result 8487 states and 14004 transitions. [2024-11-18 14:04:46,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-18 14:04:46,886 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) Word has length 117 [2024-11-18 14:04:46,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:46,928 INFO L225 Difference]: With dead ends: 8487 [2024-11-18 14:04:46,929 INFO L226 Difference]: Without dead ends: 5814 [2024-11-18 14:04:46,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2024-11-18 14:04:46,947 INFO L432 NwaCegarLoop]: 763 mSDtfsCounter, 2818 mSDsluCounter, 3919 mSDsCounter, 0 mSdLazyCounter, 9173 mSolverCounterSat, 867 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 4682 SdHoareTripleChecker+Invalid, 10040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 867 IncrementalHoareTripleChecker+Valid, 9173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:46,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 4682 Invalid, 10040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [867 Valid, 9173 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-18 14:04:46,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5814 states. [2024-11-18 14:04:47,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5814 to 5682. [2024-11-18 14:04:47,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5682 states, 4286 states have (on average 1.6075594960335977) internal successors, (6890), 4467 states have internal predecessors, (6890), 1111 states have call successors, (1111), 252 states have call predecessors, (1111), 284 states have return successors, (1296), 1039 states have call predecessors, (1296), 1106 states have call successors, (1296) [2024-11-18 14:04:47,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 9297 transitions. [2024-11-18 14:04:47,251 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 9297 transitions. Word has length 117 [2024-11-18 14:04:47,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:47,251 INFO L471 AbstractCegarLoop]: Abstraction has 5682 states and 9297 transitions. [2024-11-18 14:04:47,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 10 states have internal predecessors, (86), 5 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 5 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-18 14:04:47,252 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 9297 transitions. [2024-11-18 14:04:47,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-18 14:04:47,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:47,254 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:47,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:04:47,255 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:47,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:47,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1859421445, now seen corresponding path program 1 times [2024-11-18 14:04:47,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:47,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947241077] [2024-11-18 14:04:47,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:47,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:47,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:04:47,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:47,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947241077] [2024-11-18 14:04:47,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947241077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:47,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:47,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:47,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841718296] [2024-11-18 14:04:47,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:47,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:47,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:47,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:47,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:47,477 INFO L87 Difference]: Start difference. First operand 5682 states and 9297 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-18 14:04:50,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:50,389 INFO L93 Difference]: Finished difference Result 16386 states and 27386 transitions. [2024-11-18 14:04:50,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:04:50,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 118 [2024-11-18 14:04:50,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:50,535 INFO L225 Difference]: With dead ends: 16386 [2024-11-18 14:04:50,535 INFO L226 Difference]: Without dead ends: 10745 [2024-11-18 14:04:50,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:04:50,561 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 3413 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 3499 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3446 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 4533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1034 IncrementalHoareTripleChecker+Valid, 3499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:50,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3446 Valid, 2039 Invalid, 4533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 3499 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-18 14:04:50,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2024-11-18 14:04:51,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 9525. [2024-11-18 14:04:51,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9525 states, 6885 states have (on average 1.5877995642701526) internal successors, (10932), 7296 states have internal predecessors, (10932), 2183 states have call successors, (2183), 384 states have call predecessors, (2183), 456 states have return successors, (2605), 2117 states have call predecessors, (2605), 2178 states have call successors, (2605) [2024-11-18 14:04:51,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9525 states to 9525 states and 15720 transitions. [2024-11-18 14:04:51,173 INFO L78 Accepts]: Start accepts. Automaton has 9525 states and 15720 transitions. Word has length 118 [2024-11-18 14:04:51,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:51,173 INFO L471 AbstractCegarLoop]: Abstraction has 9525 states and 15720 transitions. [2024-11-18 14:04:51,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-18 14:04:51,174 INFO L276 IsEmpty]: Start isEmpty. Operand 9525 states and 15720 transitions. [2024-11-18 14:04:51,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 14:04:51,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:51,177 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:51,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:04:51,178 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:51,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:51,178 INFO L85 PathProgramCache]: Analyzing trace with hash -532764559, now seen corresponding path program 1 times [2024-11-18 14:04:51,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:51,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984052261] [2024-11-18 14:04:51,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:51,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:51,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:51,355 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:04:51,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:51,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984052261] [2024-11-18 14:04:51,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984052261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:51,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:51,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:51,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073129067] [2024-11-18 14:04:51,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:51,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:51,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:51,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:51,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:51,358 INFO L87 Difference]: Start difference. First operand 9525 states and 15720 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-18 14:04:54,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:04:54,969 INFO L93 Difference]: Finished difference Result 31828 states and 54215 transitions. [2024-11-18 14:04:54,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:04:54,970 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 119 [2024-11-18 14:04:54,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:04:55,118 INFO L225 Difference]: With dead ends: 31828 [2024-11-18 14:04:55,118 INFO L226 Difference]: Without dead ends: 22351 [2024-11-18 14:04:55,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:04:55,160 INFO L432 NwaCegarLoop]: 832 mSDtfsCounter, 3426 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 3460 mSolverCounterSat, 1058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3460 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 4518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1058 IncrementalHoareTripleChecker+Valid, 3460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:04:55,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3460 Valid, 2052 Invalid, 4518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1058 Valid, 3460 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-18 14:04:55,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22351 states. [2024-11-18 14:04:56,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22351 to 19992. [2024-11-18 14:04:56,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19992 states, 13565 states have (on average 1.5640250645042388) internal successors, (21216), 14641 states have internal predecessors, (21216), 5556 states have call successors, (5556), 650 states have call predecessors, (5556), 870 states have return successors, (6904), 5568 states have call predecessors, (6904), 5551 states have call successors, (6904) [2024-11-18 14:04:56,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19992 states to 19992 states and 33676 transitions. [2024-11-18 14:04:56,777 INFO L78 Accepts]: Start accepts. Automaton has 19992 states and 33676 transitions. Word has length 119 [2024-11-18 14:04:56,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:04:56,777 INFO L471 AbstractCegarLoop]: Abstraction has 19992 states and 33676 transitions. [2024-11-18 14:04:56,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-18 14:04:56,778 INFO L276 IsEmpty]: Start isEmpty. Operand 19992 states and 33676 transitions. [2024-11-18 14:04:56,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-18 14:04:56,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:04:56,781 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:04:56,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:04:56,781 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:04:56,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:04:56,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1900096448, now seen corresponding path program 1 times [2024-11-18 14:04:56,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:04:56,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854327994] [2024-11-18 14:04:56,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:04:56,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:04:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:04:56,928 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:04:56,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:04:56,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854327994] [2024-11-18 14:04:56,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854327994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:04:56,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:04:56,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:04:56,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685871691] [2024-11-18 14:04:56,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:04:56,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:04:56,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:04:56,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:04:56,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:04:56,931 INFO L87 Difference]: Start difference. First operand 19992 states and 33676 transitions. Second operand has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-18 14:05:03,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:05:03,483 INFO L93 Difference]: Finished difference Result 77070 states and 134743 transitions. [2024-11-18 14:05:03,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:05:03,484 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 120 [2024-11-18 14:05:03,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:05:04,142 INFO L225 Difference]: With dead ends: 77070 [2024-11-18 14:05:04,142 INFO L226 Difference]: Without dead ends: 57128 [2024-11-18 14:05:04,239 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:05:04,241 INFO L432 NwaCegarLoop]: 838 mSDtfsCounter, 3438 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 3467 mSolverCounterSat, 1061 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3473 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 4528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1061 IncrementalHoareTripleChecker+Valid, 3467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:05:04,241 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3473 Valid, 2073 Invalid, 4528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1061 Valid, 3467 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-18 14:05:04,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57128 states. [2024-11-18 14:05:08,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57128 to 51195. [2024-11-18 14:05:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51195 states, 32475 states have (on average 1.543125481139338) internal successors, (50113), 35608 states have internal predecessors, (50113), 16751 states have call successors, (16751), 1182 states have call predecessors, (16751), 1968 states have return successors, (22005), 17183 states have call predecessors, (22005), 16746 states have call successors, (22005) [2024-11-18 14:05:09,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51195 states to 51195 states and 88869 transitions. [2024-11-18 14:05:09,299 INFO L78 Accepts]: Start accepts. Automaton has 51195 states and 88869 transitions. Word has length 120 [2024-11-18 14:05:09,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:05:09,300 INFO L471 AbstractCegarLoop]: Abstraction has 51195 states and 88869 transitions. [2024-11-18 14:05:09,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-18 14:05:09,300 INFO L276 IsEmpty]: Start isEmpty. Operand 51195 states and 88869 transitions. [2024-11-18 14:05:09,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-18 14:05:09,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:05:09,304 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:05:09,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 14:05:09,304 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:05:09,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:05:09,305 INFO L85 PathProgramCache]: Analyzing trace with hash -29420458, now seen corresponding path program 1 times [2024-11-18 14:05:09,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:05:09,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885817445] [2024-11-18 14:05:09,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:05:09,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:05:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:05:09,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:05:09,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:05:09,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885817445] [2024-11-18 14:05:09,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885817445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:05:09,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:05:09,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:05:09,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308365836] [2024-11-18 14:05:09,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:05:09,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:05:09,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:05:09,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:05:09,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:05:09,494 INFO L87 Difference]: Start difference. First operand 51195 states and 88869 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2024-11-18 14:05:28,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:05:28,550 INFO L93 Difference]: Finished difference Result 219962 states and 395804 transitions. [2024-11-18 14:05:28,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:05:28,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 6 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 121 [2024-11-18 14:05:28,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:05:31,239 INFO L225 Difference]: With dead ends: 219962 [2024-11-18 14:05:31,239 INFO L226 Difference]: Without dead ends: 168821 [2024-11-18 14:05:31,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:05:31,585 INFO L432 NwaCegarLoop]: 844 mSDtfsCounter, 3450 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 3476 mSolverCounterSat, 1063 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3486 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 4539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1063 IncrementalHoareTripleChecker+Valid, 3476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:05:31,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3486 Valid, 2094 Invalid, 4539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1063 Valid, 3476 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-18 14:05:31,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168821 states.