./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 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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-803cd42-m [2024-11-22 01:49:45,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 01:49:45,069 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 01:49:45,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 01:49:45,076 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 01:49:45,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 01:49:45,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 01:49:45,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 01:49:45,104 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 01:49:45,104 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 01:49:45,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 01:49:45,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 01:49:45,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 01:49:45,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 01:49:45,109 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 01:49:45,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 01:49:45,110 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 01:49:45,112 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 01:49:45,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 01:49:45,112 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 01:49:45,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 01:49:45,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 01:49:45,114 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 01:49:45,117 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 01:49:45,117 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 01:49:45,117 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 01:49:45,117 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 01:49:45,117 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 01:49:45,118 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 01:49:45,118 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 01:49:45,118 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 01:49:45,118 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 01:49:45,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:49:45,119 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 01:49:45,119 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 01:49:45,119 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 01:49:45,119 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 01:49:45,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 01:49:45,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 01:49:45,120 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 01:49:45,120 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 01:49:45,121 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 01:49:45,121 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1493e9da3ad278988eda47a556733ebc5ac5411d3350d76fb478293d9e5d934e [2024-11-22 01:49:45,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 01:49:45,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 01:49:45,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 01:49:45,375 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 01:49:45,376 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 01:49:45,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec9_product30.cil.c [2024-11-22 01:49:46,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 01:49:47,217 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 01:49:47,217 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product30.cil.c [2024-11-22 01:49:47,245 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f834c39/a16e7139e3674db986aafbe6ced8997a/FLAGc1fec8c8b [2024-11-22 01:49:47,556 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f834c39/a16e7139e3674db986aafbe6ced8997a [2024-11-22 01:49:47,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 01:49:47,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 01:49:47,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 01:49:47,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 01:49:47,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 01:49:47,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:47" (1/1) ... [2024-11-22 01:49:47,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22933953 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:47, skipping insertion in model container [2024-11-22 01:49:47,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:49:47" (1/1) ... [2024-11-22 01:49:47,705 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 01:49:48,148 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] [2024-11-22 01:49:48,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:49:48,297 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 01:49:48,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-22 01:49:48,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [414] [2024-11-22 01:49:48,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [452] [2024-11-22 01:49:48,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [461] [2024-11-22 01:49:48,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [626] [2024-11-22 01:49:48,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [640] [2024-11-22 01:49:48,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [739] [2024-11-22 01:49:48,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [859] [2024-11-22 01:49:48,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2444] [2024-11-22 01:49:48,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [3105] [2024-11-22 01:49:48,326 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] [2024-11-22 01:49:48,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 01:49:48,406 INFO L204 MainTranslator]: Completed translation [2024-11-22 01:49:48,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48 WrapperNode [2024-11-22 01:49:48,407 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 01:49:48,408 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 01:49:48,408 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 01:49:48,408 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 01:49:48,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (1/1) ... [2024-11-22 01:49:48,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (1/1) ... [2024-11-22 01:49:48,472 INFO L138 Inliner]: procedures = 95, calls = 344, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 872 [2024-11-22 01:49:48,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 01:49:48,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 01:49:48,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 01:49:48,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 01:49:48,491 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (1/1) ... [2024-11-22 01:49:48,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (1/1) ... [2024-11-22 01:49:48,498 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (1/1) ... [2024-11-22 01:49:48,529 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]. [2024-11-22 01:49:48,530 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (1/1) ... [2024-11-22 01:49:48,530 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (1/1) ... [2024-11-22 01:49:48,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (1/1) ... [2024-11-22 01:49:48,559 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (1/1) ... [2024-11-22 01:49:48,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (1/1) ... [2024-11-22 01:49:48,569 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (1/1) ... [2024-11-22 01:49:48,578 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 01:49:48,579 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 01:49:48,579 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 01:49:48,579 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 01:49:48,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (1/1) ... [2024-11-22 01:49:48,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 01:49:48,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 01:49:48,617 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) [2024-11-22 01:49:48,619 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 [2024-11-22 01:49:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 01:49:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-22 01:49:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-22 01:49:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-22 01:49:48,691 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-22 01:49:48,691 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-22 01:49:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-22 01:49:48,692 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-22 01:49:48,692 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-22 01:49:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-22 01:49:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-22 01:49:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-11-22 01:49:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-11-22 01:49:48,693 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 01:49:48,693 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 01:49:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 01:49:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 01:49:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-22 01:49:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-22 01:49:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-22 01:49:48,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-22 01:49:48,694 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-22 01:49:48,696 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-22 01:49:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-22 01:49:48,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-22 01:49:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-22 01:49:48,697 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-22 01:49:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-22 01:49:48,697 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-22 01:49:48,697 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-22 01:49:48,697 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-22 01:49:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-22 01:49:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-22 01:49:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-22 01:49:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-22 01:49:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-22 01:49:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-22 01:49:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-22 01:49:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-22 01:49:48,698 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-11-22 01:49:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-22 01:49:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-22 01:49:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-22 01:49:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-22 01:49:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-22 01:49:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-22 01:49:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-22 01:49:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-22 01:49:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-22 01:49:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-11-22 01:49:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-11-22 01:49:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-22 01:49:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-22 01:49:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-22 01:49:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-22 01:49:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-22 01:49:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-22 01:49:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__twothirdsfull [2024-11-22 01:49:48,700 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__twothirdsfull [2024-11-22 01:49:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 01:49:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 01:49:48,701 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-22 01:49:48,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-22 01:49:48,863 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 01:49:48,865 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 01:49:49,848 INFO L? ?]: Removed 455 outVars from TransFormulas that were not future-live. [2024-11-22 01:49:49,848 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 01:49:49,871 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 01:49:49,872 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 01:49:49,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:49 BoogieIcfgContainer [2024-11-22 01:49:49,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 01:49:49,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 01:49:49,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 01:49:49,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 01:49:49,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:49:47" (1/3) ... [2024-11-22 01:49:49,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73103d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:49, skipping insertion in model container [2024-11-22 01:49:49,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:49:48" (2/3) ... [2024-11-22 01:49:49,882 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73103d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:49:49, skipping insertion in model container [2024-11-22 01:49:49,882 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:49:49" (3/3) ... [2024-11-22 01:49:49,884 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product30.cil.c [2024-11-22 01:49:49,897 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 01:49:49,897 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 01:49:49,972 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 01:49:49,978 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;@63860e0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 01:49:49,979 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 01:49:49,988 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) [2024-11-22 01:49:50,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-22 01:49:50,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:50,002 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] [2024-11-22 01:49:50,002 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:50,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:50,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1316381237, now seen corresponding path program 1 times [2024-11-22 01:49:50,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:50,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392973331] [2024-11-22 01:49:50,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:50,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:50,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:50,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:50,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:50,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392973331] [2024-11-22 01:49:50,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392973331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:50,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:50,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:50,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390009697] [2024-11-22 01:49:50,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:50,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:50,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:50,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:50,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:50,541 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) [2024-11-22 01:49:50,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:50,712 INFO L93 Difference]: Finished difference Result 1132 states and 1889 transitions. [2024-11-22 01:49:50,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:50,715 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 [2024-11-22 01:49:50,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:50,737 INFO L225 Difference]: With dead ends: 1132 [2024-11-22 01:49:50,737 INFO L226 Difference]: Without dead ends: 568 [2024-11-22 01:49:50,745 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 [2024-11-22 01:49:50,748 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 [2024-11-22 01:49:50,749 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] [2024-11-22 01:49:50,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-22 01:49:50,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-22 01:49:50,819 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) [2024-11-22 01:49:50,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 940 transitions. [2024-11-22 01:49:50,841 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 940 transitions. Word has length 62 [2024-11-22 01:49:50,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:50,841 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 940 transitions. [2024-11-22 01:49:50,842 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) [2024-11-22 01:49:50,842 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 940 transitions. [2024-11-22 01:49:50,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-22 01:49:50,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:50,859 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] [2024-11-22 01:49:50,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 01:49:50,860 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:50,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:50,861 INFO L85 PathProgramCache]: Analyzing trace with hash 2014226098, now seen corresponding path program 1 times [2024-11-22 01:49:50,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:50,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24680300] [2024-11-22 01:49:50,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:50,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:51,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:51,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:51,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24680300] [2024-11-22 01:49:51,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24680300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:51,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:51,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:51,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548821921] [2024-11-22 01:49:51,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:51,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:51,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:51,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:51,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:51,118 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) [2024-11-22 01:49:51,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:51,190 INFO L93 Difference]: Finished difference Result 1118 states and 1857 transitions. [2024-11-22 01:49:51,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:51,191 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 [2024-11-22 01:49:51,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:51,200 INFO L225 Difference]: With dead ends: 1118 [2024-11-22 01:49:51,202 INFO L226 Difference]: Without dead ends: 568 [2024-11-22 01:49:51,205 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 [2024-11-22 01:49:51,206 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 [2024-11-22 01:49:51,208 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] [2024-11-22 01:49:51,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-22 01:49:51,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-22 01:49:51,289 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) [2024-11-22 01:49:51,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 939 transitions. [2024-11-22 01:49:51,296 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 939 transitions. Word has length 65 [2024-11-22 01:49:51,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:51,296 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 939 transitions. [2024-11-22 01:49:51,296 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) [2024-11-22 01:49:51,296 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 939 transitions. [2024-11-22 01:49:51,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-22 01:49:51,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:51,299 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] [2024-11-22 01:49:51,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 01:49:51,299 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:51,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:51,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1200980869, now seen corresponding path program 1 times [2024-11-22 01:49:51,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:51,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802234164] [2024-11-22 01:49:51,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:51,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:51,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:51,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:51,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802234164] [2024-11-22 01:49:51,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802234164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:51,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:51,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:51,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750822501] [2024-11-22 01:49:51,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:51,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:51,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:51,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:51,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:51,478 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) [2024-11-22 01:49:51,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:51,534 INFO L93 Difference]: Finished difference Result 1118 states and 1856 transitions. [2024-11-22 01:49:51,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:51,535 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 [2024-11-22 01:49:51,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:51,540 INFO L225 Difference]: With dead ends: 1118 [2024-11-22 01:49:51,541 INFO L226 Difference]: Without dead ends: 568 [2024-11-22 01:49:51,544 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 [2024-11-22 01:49:51,544 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 [2024-11-22 01:49:51,547 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] [2024-11-22 01:49:51,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-22 01:49:51,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-22 01:49:51,570 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) [2024-11-22 01:49:51,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 938 transitions. [2024-11-22 01:49:51,575 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 938 transitions. Word has length 66 [2024-11-22 01:49:51,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:51,575 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 938 transitions. [2024-11-22 01:49:51,575 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) [2024-11-22 01:49:51,575 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 938 transitions. [2024-11-22 01:49:51,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-22 01:49:51,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:51,577 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] [2024-11-22 01:49:51,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 01:49:51,578 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:51,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:51,578 INFO L85 PathProgramCache]: Analyzing trace with hash 541895310, now seen corresponding path program 1 times [2024-11-22 01:49:51,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:51,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568222730] [2024-11-22 01:49:51,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:51,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:51,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:51,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:51,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:51,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568222730] [2024-11-22 01:49:51,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568222730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:51,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:51,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:51,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399835047] [2024-11-22 01:49:51,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:51,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:51,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:51,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:51,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:51,701 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) [2024-11-22 01:49:51,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:51,744 INFO L93 Difference]: Finished difference Result 1118 states and 1855 transitions. [2024-11-22 01:49:51,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:51,745 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 [2024-11-22 01:49:51,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:51,751 INFO L225 Difference]: With dead ends: 1118 [2024-11-22 01:49:51,751 INFO L226 Difference]: Without dead ends: 568 [2024-11-22 01:49:51,755 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 [2024-11-22 01:49:51,756 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 [2024-11-22 01:49:51,756 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] [2024-11-22 01:49:51,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-22 01:49:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-22 01:49:51,779 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) [2024-11-22 01:49:51,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 937 transitions. [2024-11-22 01:49:51,786 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 937 transitions. Word has length 67 [2024-11-22 01:49:51,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:51,786 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 937 transitions. [2024-11-22 01:49:51,787 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) [2024-11-22 01:49:51,787 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 937 transitions. [2024-11-22 01:49:51,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-22 01:49:51,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:51,789 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] [2024-11-22 01:49:51,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 01:49:51,793 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:51,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:51,793 INFO L85 PathProgramCache]: Analyzing trace with hash 366792225, now seen corresponding path program 1 times [2024-11-22 01:49:51,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:51,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576238512] [2024-11-22 01:49:51,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:51,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:51,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:51,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:51,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:51,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576238512] [2024-11-22 01:49:51,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576238512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:51,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:51,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:51,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038590573] [2024-11-22 01:49:51,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:51,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:51,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:51,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:51,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:51,942 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) [2024-11-22 01:49:51,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:51,982 INFO L93 Difference]: Finished difference Result 1118 states and 1854 transitions. [2024-11-22 01:49:51,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:51,982 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 [2024-11-22 01:49:51,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:51,988 INFO L225 Difference]: With dead ends: 1118 [2024-11-22 01:49:51,988 INFO L226 Difference]: Without dead ends: 568 [2024-11-22 01:49:51,991 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 [2024-11-22 01:49:51,993 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 [2024-11-22 01:49:51,995 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] [2024-11-22 01:49:51,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-22 01:49:52,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 568. [2024-11-22 01:49:52,014 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) [2024-11-22 01:49:52,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 936 transitions. [2024-11-22 01:49:52,018 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 936 transitions. Word has length 68 [2024-11-22 01:49:52,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:52,019 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 936 transitions. [2024-11-22 01:49:52,019 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) [2024-11-22 01:49:52,020 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 936 transitions. [2024-11-22 01:49:52,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 01:49:52,022 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:52,022 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] [2024-11-22 01:49:52,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 01:49:52,023 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:52,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:52,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1984723350, now seen corresponding path program 1 times [2024-11-22 01:49:52,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:52,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628029363] [2024-11-22 01:49:52,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:52,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:52,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:52,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:52,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628029363] [2024-11-22 01:49:52,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628029363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:52,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:52,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 01:49:52,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697531587] [2024-11-22 01:49:52,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:52,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 01:49:52,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:52,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 01:49:52,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 01:49:52,246 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) [2024-11-22 01:49:52,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:52,378 INFO L93 Difference]: Finished difference Result 1084 states and 1786 transitions. [2024-11-22 01:49:52,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:49:52,379 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 [2024-11-22 01:49:52,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:52,384 INFO L225 Difference]: With dead ends: 1084 [2024-11-22 01:49:52,384 INFO L226 Difference]: Without dead ends: 583 [2024-11-22 01:49:52,387 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 [2024-11-22 01:49:52,389 INFO L432 NwaCegarLoop]: 924 mSDtfsCounter, 91 mSDsluCounter, 6385 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2024-11-22 01:49:52,390 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] [2024-11-22 01:49:52,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-22 01:49:52,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 581. [2024-11-22 01:49:52,415 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) [2024-11-22 01:49:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 955 transitions. [2024-11-22 01:49:52,419 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 955 transitions. Word has length 69 [2024-11-22 01:49:52,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:52,420 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 955 transitions. [2024-11-22 01:49:52,420 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) [2024-11-22 01:49:52,421 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 955 transitions. [2024-11-22 01:49:52,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 01:49:52,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:52,423 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] [2024-11-22 01:49:52,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 01:49:52,424 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:52,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:52,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1215553335, now seen corresponding path program 1 times [2024-11-22 01:49:52,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:52,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320998810] [2024-11-22 01:49:52,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:52,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:52,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:52,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:52,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320998810] [2024-11-22 01:49:52,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320998810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:52,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:52,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 01:49:52,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030981526] [2024-11-22 01:49:52,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:52,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 01:49:52,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:52,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 01:49:52,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 01:49:52,532 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) [2024-11-22 01:49:52,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:52,567 INFO L93 Difference]: Finished difference Result 1136 states and 1880 transitions. [2024-11-22 01:49:52,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 01:49:52,568 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 [2024-11-22 01:49:52,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:52,572 INFO L225 Difference]: With dead ends: 1136 [2024-11-22 01:49:52,572 INFO L226 Difference]: Without dead ends: 562 [2024-11-22 01:49:52,574 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 [2024-11-22 01:49:52,578 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 [2024-11-22 01:49:52,578 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] [2024-11-22 01:49:52,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2024-11-22 01:49:52,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2024-11-22 01:49:52,594 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) [2024-11-22 01:49:52,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 922 transitions. [2024-11-22 01:49:52,599 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 922 transitions. Word has length 69 [2024-11-22 01:49:52,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:52,600 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 922 transitions. [2024-11-22 01:49:52,601 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) [2024-11-22 01:49:52,601 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 922 transitions. [2024-11-22 01:49:52,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-22 01:49:52,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:52,605 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] [2024-11-22 01:49:52,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 01:49:52,605 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:52,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:52,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1693135546, now seen corresponding path program 1 times [2024-11-22 01:49:52,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:52,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248882201] [2024-11-22 01:49:52,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:52,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:52,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:52,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:52,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248882201] [2024-11-22 01:49:52,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248882201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:52,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:52,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:49:52,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795432772] [2024-11-22 01:49:52,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:52,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:49:52,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:52,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:49:52,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:49:52,736 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) [2024-11-22 01:49:52,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:52,924 INFO L93 Difference]: Finished difference Result 1081 states and 1778 transitions. [2024-11-22 01:49:52,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:49:52,925 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 [2024-11-22 01:49:52,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:52,929 INFO L225 Difference]: With dead ends: 1081 [2024-11-22 01:49:52,929 INFO L226 Difference]: Without dead ends: 571 [2024-11-22 01:49:52,932 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 [2024-11-22 01:49:52,932 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 [2024-11-22 01:49:52,932 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] [2024-11-22 01:49:52,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-22 01:49:52,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 562. [2024-11-22 01:49:52,946 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) [2024-11-22 01:49:52,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 918 transitions. [2024-11-22 01:49:52,953 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 918 transitions. Word has length 70 [2024-11-22 01:49:52,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:52,953 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 918 transitions. [2024-11-22 01:49:52,953 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) [2024-11-22 01:49:52,954 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 918 transitions. [2024-11-22 01:49:52,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-22 01:49:52,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:52,957 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] [2024-11-22 01:49:52,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 01:49:52,957 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:52,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:52,957 INFO L85 PathProgramCache]: Analyzing trace with hash 549919181, now seen corresponding path program 1 times [2024-11-22 01:49:52,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:52,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370285032] [2024-11-22 01:49:52,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:52,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:52,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:53,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:53,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:53,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370285032] [2024-11-22 01:49:53,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370285032] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:53,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:53,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:49:53,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385747715] [2024-11-22 01:49:53,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:53,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:49:53,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:53,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:49:53,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:49:53,117 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) [2024-11-22 01:49:53,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:53,298 INFO L93 Difference]: Finished difference Result 1081 states and 1774 transitions. [2024-11-22 01:49:53,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:49:53,299 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 [2024-11-22 01:49:53,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:53,304 INFO L225 Difference]: With dead ends: 1081 [2024-11-22 01:49:53,304 INFO L226 Difference]: Without dead ends: 571 [2024-11-22 01:49:53,307 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 [2024-11-22 01:49:53,308 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 [2024-11-22 01:49:53,308 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] [2024-11-22 01:49:53,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-22 01:49:53,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 562. [2024-11-22 01:49:53,324 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) [2024-11-22 01:49:53,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 914 transitions. [2024-11-22 01:49:53,329 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 914 transitions. Word has length 71 [2024-11-22 01:49:53,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:53,329 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 914 transitions. [2024-11-22 01:49:53,329 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) [2024-11-22 01:49:53,329 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 914 transitions. [2024-11-22 01:49:53,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 01:49:53,330 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:53,331 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] [2024-11-22 01:49:53,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 01:49:53,331 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:53,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:53,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1451371179, now seen corresponding path program 1 times [2024-11-22 01:49:53,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:53,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790298352] [2024-11-22 01:49:53,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:53,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:53,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:53,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:53,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:53,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790298352] [2024-11-22 01:49:53,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790298352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:53,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:53,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:49:53,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614604951] [2024-11-22 01:49:53,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:53,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:49:53,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:53,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:49:53,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:49:53,461 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) [2024-11-22 01:49:53,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:53,607 INFO L93 Difference]: Finished difference Result 1081 states and 1770 transitions. [2024-11-22 01:49:53,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:49:53,607 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 [2024-11-22 01:49:53,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:53,611 INFO L225 Difference]: With dead ends: 1081 [2024-11-22 01:49:53,612 INFO L226 Difference]: Without dead ends: 571 [2024-11-22 01:49:53,614 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 [2024-11-22 01:49:53,614 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 [2024-11-22 01:49:53,615 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] [2024-11-22 01:49:53,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-11-22 01:49:53,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 562. [2024-11-22 01:49:53,628 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) [2024-11-22 01:49:53,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 910 transitions. [2024-11-22 01:49:53,633 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 910 transitions. Word has length 72 [2024-11-22 01:49:53,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:53,633 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 910 transitions. [2024-11-22 01:49:53,633 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) [2024-11-22 01:49:53,633 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 910 transitions. [2024-11-22 01:49:53,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-22 01:49:53,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:53,634 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] [2024-11-22 01:49:53,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 01:49:53,635 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:53,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:53,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1273587499, now seen corresponding path program 1 times [2024-11-22 01:49:53,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:53,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900390394] [2024-11-22 01:49:53,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:53,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:53,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:53,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:53,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900390394] [2024-11-22 01:49:53,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900390394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:53,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:53,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:49:53,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589771229] [2024-11-22 01:49:53,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:53,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:49:53,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:53,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:49:53,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:49:53,776 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) [2024-11-22 01:49:53,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:53,833 INFO L93 Difference]: Finished difference Result 1072 states and 1752 transitions. [2024-11-22 01:49:53,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:49:53,834 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 [2024-11-22 01:49:53,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:53,838 INFO L225 Difference]: With dead ends: 1072 [2024-11-22 01:49:53,838 INFO L226 Difference]: Without dead ends: 541 [2024-11-22 01:49:53,841 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 [2024-11-22 01:49:53,841 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 [2024-11-22 01:49:53,841 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] [2024-11-22 01:49:53,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-22 01:49:53,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-22 01:49:53,854 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) [2024-11-22 01:49:53,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 876 transitions. [2024-11-22 01:49:53,858 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 876 transitions. Word has length 72 [2024-11-22 01:49:53,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:53,858 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 876 transitions. [2024-11-22 01:49:53,858 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) [2024-11-22 01:49:53,858 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 876 transitions. [2024-11-22 01:49:53,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-22 01:49:53,860 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:53,860 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] [2024-11-22 01:49:53,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 01:49:53,860 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:53,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:53,861 INFO L85 PathProgramCache]: Analyzing trace with hash -582155758, now seen corresponding path program 1 times [2024-11-22 01:49:53,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:53,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617886594] [2024-11-22 01:49:53,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:53,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:53,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:53,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:53,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:53,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617886594] [2024-11-22 01:49:53,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617886594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:53,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:53,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:49:53,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354724564] [2024-11-22 01:49:53,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:53,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:49:53,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:53,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:49:53,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:49:53,988 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) [2024-11-22 01:49:54,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:54,051 INFO L93 Difference]: Finished difference Result 1051 states and 1718 transitions. [2024-11-22 01:49:54,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:49:54,051 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 [2024-11-22 01:49:54,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:54,056 INFO L225 Difference]: With dead ends: 1051 [2024-11-22 01:49:54,056 INFO L226 Difference]: Without dead ends: 541 [2024-11-22 01:49:54,058 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 [2024-11-22 01:49:54,059 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 [2024-11-22 01:49:54,059 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] [2024-11-22 01:49:54,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-22 01:49:54,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-22 01:49:54,072 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) [2024-11-22 01:49:54,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 875 transitions. [2024-11-22 01:49:54,076 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 875 transitions. Word has length 73 [2024-11-22 01:49:54,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:54,077 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 875 transitions. [2024-11-22 01:49:54,077 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) [2024-11-22 01:49:54,077 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 875 transitions. [2024-11-22 01:49:54,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-22 01:49:54,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:54,078 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] [2024-11-22 01:49:54,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 01:49:54,078 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:54,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:54,079 INFO L85 PathProgramCache]: Analyzing trace with hash 889250832, now seen corresponding path program 1 times [2024-11-22 01:49:54,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:54,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115187422] [2024-11-22 01:49:54,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:54,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:54,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:54,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:54,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115187422] [2024-11-22 01:49:54,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115187422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:54,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:54,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:49:54,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243653959] [2024-11-22 01:49:54,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:54,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:49:54,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:54,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:49:54,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:49:54,188 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) [2024-11-22 01:49:54,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:54,252 INFO L93 Difference]: Finished difference Result 1051 states and 1717 transitions. [2024-11-22 01:49:54,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:49:54,253 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 [2024-11-22 01:49:54,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:54,257 INFO L225 Difference]: With dead ends: 1051 [2024-11-22 01:49:54,257 INFO L226 Difference]: Without dead ends: 541 [2024-11-22 01:49:54,259 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 [2024-11-22 01:49:54,260 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 [2024-11-22 01:49:54,261 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] [2024-11-22 01:49:54,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-22 01:49:54,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-22 01:49:54,275 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) [2024-11-22 01:49:54,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 874 transitions. [2024-11-22 01:49:54,279 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 874 transitions. Word has length 74 [2024-11-22 01:49:54,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:54,279 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 874 transitions. [2024-11-22 01:49:54,280 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) [2024-11-22 01:49:54,280 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 874 transitions. [2024-11-22 01:49:54,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-22 01:49:54,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:54,283 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] [2024-11-22 01:49:54,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 01:49:54,283 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:54,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:54,284 INFO L85 PathProgramCache]: Analyzing trace with hash -655552937, now seen corresponding path program 1 times [2024-11-22 01:49:54,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:54,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184450088] [2024-11-22 01:49:54,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:54,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:54,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:54,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:54,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184450088] [2024-11-22 01:49:54,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184450088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:54,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:54,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-22 01:49:54,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65297773] [2024-11-22 01:49:54,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:54,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 01:49:54,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:54,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 01:49:54,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-22 01:49:54,497 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) [2024-11-22 01:49:54,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:54,586 INFO L93 Difference]: Finished difference Result 1045 states and 1705 transitions. [2024-11-22 01:49:54,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 01:49:54,587 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 [2024-11-22 01:49:54,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:54,591 INFO L225 Difference]: With dead ends: 1045 [2024-11-22 01:49:54,591 INFO L226 Difference]: Without dead ends: 541 [2024-11-22 01:49:54,593 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 [2024-11-22 01:49:54,593 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, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 01:49:54,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7700 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 01:49:54,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-22 01:49:54,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-22 01:49:54,605 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) [2024-11-22 01:49:54,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 873 transitions. [2024-11-22 01:49:54,608 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 873 transitions. Word has length 75 [2024-11-22 01:49:54,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:54,609 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 873 transitions. [2024-11-22 01:49:54,609 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) [2024-11-22 01:49:54,609 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 873 transitions. [2024-11-22 01:49:54,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-22 01:49:54,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:54,611 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] [2024-11-22 01:49:54,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 01:49:54,611 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:54,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:54,611 INFO L85 PathProgramCache]: Analyzing trace with hash -21779899, now seen corresponding path program 1 times [2024-11-22 01:49:54,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:54,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521987603] [2024-11-22 01:49:54,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:54,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:54,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:54,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:54,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:54,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521987603] [2024-11-22 01:49:54,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521987603] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:54,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:54,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:49:54,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44398709] [2024-11-22 01:49:54,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:54,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:49:54,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:54,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:49:54,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:49:54,833 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) [2024-11-22 01:49:56,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:56,850 INFO L93 Difference]: Finished difference Result 1668 states and 2754 transitions. [2024-11-22 01:49:56,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 01:49:56,851 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 [2024-11-22 01:49:56,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:56,858 INFO L225 Difference]: With dead ends: 1668 [2024-11-22 01:49:56,858 INFO L226 Difference]: Without dead ends: 1172 [2024-11-22 01:49:56,861 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 [2024-11-22 01:49:56,861 INFO L432 NwaCegarLoop]: 356 mSDtfsCounter, 3258 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 1933 mSolverCounterSat, 744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s 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, 1.9s IncrementalHoareTripleChecker+Time [2024-11-22 01:49:56,861 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3322 Valid, 962 Invalid, 2677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [744 Valid, 1933 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-22 01:49:56,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2024-11-22 01:49:56,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 1040. [2024-11-22 01:49:56,896 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) [2024-11-22 01:49:56,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1708 transitions. [2024-11-22 01:49:56,901 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1708 transitions. Word has length 76 [2024-11-22 01:49:56,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:56,902 INFO L471 AbstractCegarLoop]: Abstraction has 1040 states and 1708 transitions. [2024-11-22 01:49:56,902 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) [2024-11-22 01:49:56,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1708 transitions. [2024-11-22 01:49:56,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 01:49:56,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:56,906 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] [2024-11-22 01:49:56,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 01:49:56,906 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:56,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:56,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1863411271, now seen corresponding path program 1 times [2024-11-22 01:49:56,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:56,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745433919] [2024-11-22 01:49:56,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:56,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:57,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:57,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745433919] [2024-11-22 01:49:57,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745433919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:57,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:57,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 01:49:57,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267275778] [2024-11-22 01:49:57,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:57,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 01:49:57,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:57,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 01:49:57,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 01:49:57,300 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) [2024-11-22 01:49:58,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:49:58,872 INFO L93 Difference]: Finished difference Result 2043 states and 3418 transitions. [2024-11-22 01:49:58,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 01:49:58,872 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 [2024-11-22 01:49:58,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:49:58,880 INFO L225 Difference]: With dead ends: 2043 [2024-11-22 01:49:58,880 INFO L226 Difference]: Without dead ends: 1048 [2024-11-22 01:49:58,885 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 [2024-11-22 01:49:58,886 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 1333 mSDsluCounter, 1190 mSDsCounter, 0 mSdLazyCounter, 2820 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s 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, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:49:58,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1333 Valid, 1563 Invalid, 3212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 2820 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 01:49:58,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-11-22 01:49:58,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1048. [2024-11-22 01:49:58,930 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) [2024-11-22 01:49:58,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1746 transitions. [2024-11-22 01:49:58,937 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1746 transitions. Word has length 115 [2024-11-22 01:49:58,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:49:58,937 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1746 transitions. [2024-11-22 01:49:58,937 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) [2024-11-22 01:49:58,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1746 transitions. [2024-11-22 01:49:58,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 01:49:58,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:49:58,942 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 01:49:58,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 01:49:58,942 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:49:58,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:49:58,943 INFO L85 PathProgramCache]: Analyzing trace with hash -813515636, now seen corresponding path program 1 times [2024-11-22 01:49:58,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:49:58,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958674974] [2024-11-22 01:49:58,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:49:58,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:49:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:49:59,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 01:49:59,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:49:59,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958674974] [2024-11-22 01:49:59,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958674974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:49:59,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:49:59,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 01:49:59,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995501238] [2024-11-22 01:49:59,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:49:59,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 01:49:59,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:49:59,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 01:49:59,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-22 01:49:59,198 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) [2024-11-22 01:50:02,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:02,981 INFO L93 Difference]: Finished difference Result 3843 states and 6576 transitions. [2024-11-22 01:50:02,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 01:50:02,982 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 [2024-11-22 01:50:02,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:03,005 INFO L225 Difference]: With dead ends: 3843 [2024-11-22 01:50:03,005 INFO L226 Difference]: Without dead ends: 2840 [2024-11-22 01:50:03,015 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 [2024-11-22 01:50:03,015 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 2447 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 5056 mSolverCounterSat, 625 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 2380 SdHoareTripleChecker+Invalid, 5681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 625 IncrementalHoareTripleChecker+Valid, 5056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:03,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2521 Valid, 2380 Invalid, 5681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [625 Valid, 5056 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-22 01:50:03,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2024-11-22 01:50:03,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 2718. [2024-11-22 01:50:03,162 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) [2024-11-22 01:50:03,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2718 states to 2718 states and 4495 transitions. [2024-11-22 01:50:03,180 INFO L78 Accepts]: Start accepts. Automaton has 2718 states and 4495 transitions. Word has length 116 [2024-11-22 01:50:03,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:03,181 INFO L471 AbstractCegarLoop]: Abstraction has 2718 states and 4495 transitions. [2024-11-22 01:50:03,181 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) [2024-11-22 01:50:03,181 INFO L276 IsEmpty]: Start isEmpty. Operand 2718 states and 4495 transitions. [2024-11-22 01:50:03,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 01:50:03,185 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:03,185 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] [2024-11-22 01:50:03,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 01:50:03,186 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:03,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:03,186 INFO L85 PathProgramCache]: Analyzing trace with hash 824600177, now seen corresponding path program 1 times [2024-11-22 01:50:03,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:03,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631455318] [2024-11-22 01:50:03,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:03,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:03,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:03,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:50:03,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:03,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631455318] [2024-11-22 01:50:03,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631455318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:03,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:03,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 01:50:03,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255031836] [2024-11-22 01:50:03,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:03,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 01:50:03,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:03,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 01:50:03,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-22 01:50:03,503 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) [2024-11-22 01:50:08,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:08,380 INFO L93 Difference]: Finished difference Result 8487 states and 14004 transitions. [2024-11-22 01:50:08,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 01:50:08,381 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 [2024-11-22 01:50:08,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:08,429 INFO L225 Difference]: With dead ends: 8487 [2024-11-22 01:50:08,430 INFO L226 Difference]: Without dead ends: 5814 [2024-11-22 01:50:08,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2024-11-22 01:50:08,449 INFO L432 NwaCegarLoop]: 762 mSDtfsCounter, 2818 mSDsluCounter, 3912 mSDsCounter, 0 mSdLazyCounter, 9173 mSolverCounterSat, 867 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 4674 SdHoareTripleChecker+Invalid, 10040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 867 IncrementalHoareTripleChecker+Valid, 9173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:08,450 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 4674 Invalid, 10040 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [867 Valid, 9173 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-22 01:50:08,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5814 states. [2024-11-22 01:50:08,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5814 to 5682. [2024-11-22 01:50:08,783 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) [2024-11-22 01:50:08,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5682 states to 5682 states and 9297 transitions. [2024-11-22 01:50:08,817 INFO L78 Accepts]: Start accepts. Automaton has 5682 states and 9297 transitions. Word has length 117 [2024-11-22 01:50:08,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:08,817 INFO L471 AbstractCegarLoop]: Abstraction has 5682 states and 9297 transitions. [2024-11-22 01:50:08,818 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) [2024-11-22 01:50:08,818 INFO L276 IsEmpty]: Start isEmpty. Operand 5682 states and 9297 transitions. [2024-11-22 01:50:08,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 01:50:08,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:08,822 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] [2024-11-22 01:50:08,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 01:50:08,823 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:08,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:08,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1859421445, now seen corresponding path program 1 times [2024-11-22 01:50:08,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:08,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461687614] [2024-11-22 01:50:08,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:08,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:08,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:50:09,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:09,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461687614] [2024-11-22 01:50:09,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461687614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:09,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:09,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:50:09,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535425714] [2024-11-22 01:50:09,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:09,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:50:09,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:09,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:50:09,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:50:09,018 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) [2024-11-22 01:50:12,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:12,131 INFO L93 Difference]: Finished difference Result 16386 states and 27386 transitions. [2024-11-22 01:50:12,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:50:12,140 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 [2024-11-22 01:50:12,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:12,231 INFO L225 Difference]: With dead ends: 16386 [2024-11-22 01:50:12,232 INFO L226 Difference]: Without dead ends: 10745 [2024-11-22 01:50:12,269 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 [2024-11-22 01:50:12,270 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 3413 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 3499 mSolverCounterSat, 1034 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s 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, 2.4s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:12,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3446 Valid, 2039 Invalid, 4533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1034 Valid, 3499 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-22 01:50:12,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10745 states. [2024-11-22 01:50:13,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10745 to 9525. [2024-11-22 01:50:13,183 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) [2024-11-22 01:50:13,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9525 states to 9525 states and 15720 transitions. [2024-11-22 01:50:13,242 INFO L78 Accepts]: Start accepts. Automaton has 9525 states and 15720 transitions. Word has length 118 [2024-11-22 01:50:13,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:13,243 INFO L471 AbstractCegarLoop]: Abstraction has 9525 states and 15720 transitions. [2024-11-22 01:50:13,244 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) [2024-11-22 01:50:13,244 INFO L276 IsEmpty]: Start isEmpty. Operand 9525 states and 15720 transitions. [2024-11-22 01:50:13,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 01:50:13,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:13,248 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] [2024-11-22 01:50:13,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 01:50:13,249 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:13,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:13,251 INFO L85 PathProgramCache]: Analyzing trace with hash -532764559, now seen corresponding path program 1 times [2024-11-22 01:50:13,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:13,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250591970] [2024-11-22 01:50:13,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:13,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:13,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:50:13,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:13,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250591970] [2024-11-22 01:50:13,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250591970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:13,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:13,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:50:13,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218227997] [2024-11-22 01:50:13,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:13,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:50:13,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:13,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:50:13,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:50:13,592 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) [2024-11-22 01:50:17,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:17,903 INFO L93 Difference]: Finished difference Result 31828 states and 54215 transitions. [2024-11-22 01:50:17,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:50:17,904 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 [2024-11-22 01:50:17,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:18,084 INFO L225 Difference]: With dead ends: 31828 [2024-11-22 01:50:18,084 INFO L226 Difference]: Without dead ends: 22351 [2024-11-22 01:50:18,141 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 [2024-11-22 01:50:18,143 INFO L432 NwaCegarLoop]: 832 mSDtfsCounter, 3426 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 3460 mSolverCounterSat, 1058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.7s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:18,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3460 Valid, 2052 Invalid, 4518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1058 Valid, 3460 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-22 01:50:18,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22351 states. [2024-11-22 01:50:19,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22351 to 19992. [2024-11-22 01:50:19,650 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) [2024-11-22 01:50:19,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19992 states to 19992 states and 33676 transitions. [2024-11-22 01:50:19,779 INFO L78 Accepts]: Start accepts. Automaton has 19992 states and 33676 transitions. Word has length 119 [2024-11-22 01:50:19,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:19,779 INFO L471 AbstractCegarLoop]: Abstraction has 19992 states and 33676 transitions. [2024-11-22 01:50:19,780 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) [2024-11-22 01:50:19,780 INFO L276 IsEmpty]: Start isEmpty. Operand 19992 states and 33676 transitions. [2024-11-22 01:50:19,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 01:50:19,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:19,783 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] [2024-11-22 01:50:19,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 01:50:19,783 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:19,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:19,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1900096448, now seen corresponding path program 1 times [2024-11-22 01:50:19,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:19,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243916564] [2024-11-22 01:50:19,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:19,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:19,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:19,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:50:19,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:19,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243916564] [2024-11-22 01:50:19,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243916564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:19,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:19,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:50:19,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903933903] [2024-11-22 01:50:19,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:19,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:50:19,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:19,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:50:19,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:50:19,918 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) [2024-11-22 01:50:28,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 01:50:28,169 INFO L93 Difference]: Finished difference Result 77070 states and 134743 transitions. [2024-11-22 01:50:28,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 01:50:28,169 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 [2024-11-22 01:50:28,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 01:50:28,831 INFO L225 Difference]: With dead ends: 77070 [2024-11-22 01:50:28,831 INFO L226 Difference]: Without dead ends: 57128 [2024-11-22 01:50:28,953 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 [2024-11-22 01:50:28,954 INFO L432 NwaCegarLoop]: 838 mSDtfsCounter, 3438 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 3467 mSolverCounterSat, 1061 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s 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, 2.9s IncrementalHoareTripleChecker+Time [2024-11-22 01:50:28,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3473 Valid, 2073 Invalid, 4528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1061 Valid, 3467 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-22 01:50:28,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57128 states. [2024-11-22 01:50:33,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57128 to 51195. [2024-11-22 01:50:33,600 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) [2024-11-22 01:50:34,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51195 states to 51195 states and 88869 transitions. [2024-11-22 01:50:34,366 INFO L78 Accepts]: Start accepts. Automaton has 51195 states and 88869 transitions. Word has length 120 [2024-11-22 01:50:34,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 01:50:34,366 INFO L471 AbstractCegarLoop]: Abstraction has 51195 states and 88869 transitions. [2024-11-22 01:50:34,367 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) [2024-11-22 01:50:34,367 INFO L276 IsEmpty]: Start isEmpty. Operand 51195 states and 88869 transitions. [2024-11-22 01:50:34,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 01:50:34,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 01:50:34,370 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] [2024-11-22 01:50:34,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 01:50:34,371 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 01:50:34,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 01:50:34,371 INFO L85 PathProgramCache]: Analyzing trace with hash -29420458, now seen corresponding path program 1 times [2024-11-22 01:50:34,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 01:50:34,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106595695] [2024-11-22 01:50:34,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 01:50:34,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 01:50:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 01:50:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-22 01:50:34,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 01:50:34,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106595695] [2024-11-22 01:50:34,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106595695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 01:50:34,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 01:50:34,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 01:50:34,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487317104] [2024-11-22 01:50:34,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 01:50:34,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 01:50:34,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 01:50:34,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 01:50:34,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 01:50:34,730 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)