./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product17.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX --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 f4d752ef50871b3af82701ffcd8ca92c2975f63f8274731e1afbb137d2562986 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:14:36,244 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:14:36,360 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:14:36,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:14:36,369 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:14:36,410 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:14:36,411 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:14:36,411 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:14:36,412 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:14:36,413 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:14:36,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:14:36,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:14:36,414 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:14:36,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:14:36,417 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:14:36,417 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:14:36,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:14:36,418 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:14:36,418 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:14:36,418 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:14:36,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:14:36,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:14:36,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:14:36,423 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:14:36,423 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:14:36,424 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:14:36,424 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:14:36,424 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:14:36,424 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:14:36,424 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:14:36,425 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:14:36,425 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:14:36,425 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:14:36,425 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:14:36,426 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:14:36,426 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:14:36,428 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:14:36,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:14:36,429 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:14:36,429 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:14:36,429 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:14:36,430 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:14:36,430 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4d752ef50871b3af82701ffcd8ca92c2975f63f8274731e1afbb137d2562986 [2024-11-08 18:14:36,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:14:36,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:14:36,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:14:36,765 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:14:36,769 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:14:36,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/product-lines/elevator_spec2_product17.cil.c Unable to find full path for "g++" [2024-11-08 18:14:38,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:14:39,102 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:14:39,105 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/sv-benchmarks/c/product-lines/elevator_spec2_product17.cil.c [2024-11-08 18:14:39,140 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/data/68f6ca781/03aa767be6c94e85b52a2540f4105c4a/FLAGcfe95f187 [2024-11-08 18:14:39,158 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/data/68f6ca781/03aa767be6c94e85b52a2540f4105c4a [2024-11-08 18:14:39,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:14:39,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:14:39,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:14:39,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:14:39,170 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:14:39,171 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:14:39" (1/1) ... [2024-11-08 18:14:39,172 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5445e155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:39, skipping insertion in model container [2024-11-08 18:14:39,172 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:14:39" (1/1) ... [2024-11-08 18:14:39,262 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:14:39,528 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/sv-benchmarks/c/product-lines/elevator_spec2_product17.cil.c[17414,17427] [2024-11-08 18:14:39,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:14:39,878 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:14:39,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2024-11-08 18:14:39,915 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [716] [2024-11-08 18:14:39,919 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [725] [2024-11-08 18:14:39,919 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [846] [2024-11-08 18:14:39,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [884] [2024-11-08 18:14:39,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [983] [2024-11-08 18:14:39,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1337] [2024-11-08 18:14:39,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [2786] [2024-11-08 18:14:39,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2967] [2024-11-08 18:14:39,920 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3333] [2024-11-08 18:14:39,964 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/sv-benchmarks/c/product-lines/elevator_spec2_product17.cil.c[17414,17427] [2024-11-08 18:14:40,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:14:40,124 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:14:40,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40 WrapperNode [2024-11-08 18:14:40,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:14:40,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:14:40,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:14:40,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:14:40,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (1/1) ... [2024-11-08 18:14:40,170 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (1/1) ... [2024-11-08 18:14:40,219 INFO L138 Inliner]: procedures = 90, calls = 332, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 800 [2024-11-08 18:14:40,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:14:40,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:14:40,220 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:14:40,224 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:14:40,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (1/1) ... [2024-11-08 18:14:40,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (1/1) ... [2024-11-08 18:14:40,249 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (1/1) ... [2024-11-08 18:14:40,293 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-08 18:14:40,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (1/1) ... [2024-11-08 18:14:40,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (1/1) ... [2024-11-08 18:14:40,323 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (1/1) ... [2024-11-08 18:14:40,346 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (1/1) ... [2024-11-08 18:14:40,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (1/1) ... [2024-11-08 18:14:40,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (1/1) ... [2024-11-08 18:14:40,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:14:40,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:14:40,385 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:14:40,385 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:14:40,386 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (1/1) ... [2024-11-08 18:14:40,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:14:40,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:14:40,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:14:40,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:14:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:14:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-08 18:14:40,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-08 18:14:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-08 18:14:40,466 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-08 18:14:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-08 18:14:40,466 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-08 18:14:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-08 18:14:40,467 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-08 18:14:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-08 18:14:40,468 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-08 18:14:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 18:14:40,468 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 18:14:40,469 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 18:14:40,469 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 18:14:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-08 18:14:40,470 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-08 18:14:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-08 18:14:40,470 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-08 18:14:40,470 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-08 18:14:40,471 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-08 18:14:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-08 18:14:40,471 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-08 18:14:40,471 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-08 18:14:40,473 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-08 18:14:40,473 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-08 18:14:40,474 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-08 18:14:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-08 18:14:40,474 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-08 18:14:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-08 18:14:40,474 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-08 18:14:40,474 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-08 18:14:40,474 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-08 18:14:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-08 18:14:40,475 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-08 18:14:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:14:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:14:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 18:14:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 18:14:40,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 18:14:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 18:14:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 18:14:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 18:14:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 18:14:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-08 18:14:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-08 18:14:40,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-08 18:14:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-08 18:14:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-08 18:14:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-08 18:14:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-08 18:14:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-08 18:14:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-08 18:14:40,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-08 18:14:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-08 18:14:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-08 18:14:40,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-08 18:14:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-08 18:14:40,478 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-08 18:14:40,478 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-08 18:14:40,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-08 18:14:40,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:14:40,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:14:40,480 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-08 18:14:40,480 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-08 18:14:40,724 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:14:40,727 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:14:42,220 INFO L? ?]: Removed 427 outVars from TransFormulas that were not future-live. [2024-11-08 18:14:42,220 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:14:42,250 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:14:42,251 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:14:42,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:14:42 BoogieIcfgContainer [2024-11-08 18:14:42,251 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:14:42,254 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:14:42,254 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:14:42,258 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:14:42,258 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:14:39" (1/3) ... [2024-11-08 18:14:42,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9a420c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:14:42, skipping insertion in model container [2024-11-08 18:14:42,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:14:40" (2/3) ... [2024-11-08 18:14:42,259 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9a420c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:14:42, skipping insertion in model container [2024-11-08 18:14:42,259 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:14:42" (3/3) ... [2024-11-08 18:14:42,260 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product17.cil.c [2024-11-08 18:14:42,283 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:14:42,284 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:14:42,377 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:14:42,384 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;@6777989d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:14:42,384 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:14:42,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 532 states, 421 states have (on average 1.7102137767220902) internal successors, (720), 442 states have internal predecessors, (720), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-08 18:14:42,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-08 18:14:42,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:14:42,428 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] [2024-11-08 18:14:42,429 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:14:42,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:14:42,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1340744882, now seen corresponding path program 1 times [2024-11-08 18:14:42,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:14:42,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057422035] [2024-11-08 18:14:42,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:14:42,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:14:42,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:43,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:14:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:43,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:14:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:43,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 18:14:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:43,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 18:14:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:44,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:14:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:44,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:14:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:44,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:14:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:44,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 18:14:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:44,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:14:44,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:14:44,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057422035] [2024-11-08 18:14:44,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057422035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:14:44,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:14:44,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:14:44,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510126305] [2024-11-08 18:14:44,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:14:44,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:14:44,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:14:44,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:14:44,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:14:44,282 INFO L87 Difference]: Start difference. First operand has 532 states, 421 states have (on average 1.7102137767220902) internal successors, (720), 442 states have internal predecessors, (720), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (88), 82 states have call predecessors, (88), 88 states have call successors, (88) Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:14:54,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:14:54,502 INFO L93 Difference]: Finished difference Result 1309 states and 2241 transitions. [2024-11-08 18:14:54,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 18:14:54,505 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2024-11-08 18:14:54,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:14:54,545 INFO L225 Difference]: With dead ends: 1309 [2024-11-08 18:14:54,545 INFO L226 Difference]: Without dead ends: 789 [2024-11-08 18:14:54,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:14:54,557 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 951 mSDsluCounter, 2777 mSDsCounter, 0 mSdLazyCounter, 5137 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 3251 SdHoareTripleChecker+Invalid, 5350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 5137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:14:54,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 3251 Invalid, 5350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [213 Valid, 5137 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-08 18:14:54,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2024-11-08 18:14:54,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 528. [2024-11-08 18:14:54,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 418 states have (on average 1.700956937799043) internal successors, (711), 437 states have internal predecessors, (711), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (85), 82 states have call predecessors, (85), 83 states have call successors, (85) [2024-11-08 18:14:54,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 884 transitions. [2024-11-08 18:14:54,827 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 884 transitions. Word has length 74 [2024-11-08 18:14:54,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:14:54,829 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 884 transitions. [2024-11-08 18:14:54,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 6 states have internal predecessors, (57), 2 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:14:54,831 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 884 transitions. [2024-11-08 18:14:54,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 18:14:54,840 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:14:54,841 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] [2024-11-08 18:14:54,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:14:54,841 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:14:54,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:14:54,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1710076679, now seen corresponding path program 1 times [2024-11-08 18:14:54,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:14:54,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939367524] [2024-11-08 18:14:54,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:14:54,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:14:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:55,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:14:55,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:55,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:14:55,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:55,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:14:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:55,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:14:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:55,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:14:55,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:55,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:14:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:55,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:14:55,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:55,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 18:14:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:14:55,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:14:55,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:14:55,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939367524] [2024-11-08 18:14:55,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939367524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:14:55,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:14:55,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:14:55,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587384243] [2024-11-08 18:14:55,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:14:55,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:14:55,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:14:55,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:14:55,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:14:55,774 INFO L87 Difference]: Start difference. First operand 528 states and 884 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:15:03,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:15:03,885 INFO L93 Difference]: Finished difference Result 1301 states and 2210 transitions. [2024-11-08 18:15:03,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:15:03,886 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (9), 5 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 81 [2024-11-08 18:15:03,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:15:03,895 INFO L225 Difference]: With dead ends: 1301 [2024-11-08 18:15:03,895 INFO L226 Difference]: Without dead ends: 791 [2024-11-08 18:15:03,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:15:03,900 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 943 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 4374 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 2740 SdHoareTripleChecker+Invalid, 4578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 4374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:15:03,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1015 Valid, 2740 Invalid, 4578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [204 Valid, 4374 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-08 18:15:03,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2024-11-08 18:15:04,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 530. [2024-11-08 18:15:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 420 states have (on average 1.6952380952380952) internal successors, (712), 439 states have internal predecessors, (712), 88 states have call successors, (88), 21 states have call predecessors, (88), 21 states have return successors, (85), 82 states have call predecessors, (85), 83 states have call successors, (85) [2024-11-08 18:15:04,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 885 transitions. [2024-11-08 18:15:04,086 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 885 transitions. Word has length 81 [2024-11-08 18:15:04,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:15:04,087 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 885 transitions. [2024-11-08 18:15:04,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (9), 5 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 18:15:04,088 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 885 transitions. [2024-11-08 18:15:04,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-08 18:15:04,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:15:04,092 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] [2024-11-08 18:15:04,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:15:04,093 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:15:04,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:15:04,093 INFO L85 PathProgramCache]: Analyzing trace with hash 965752186, now seen corresponding path program 1 times [2024-11-08 18:15:04,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:15:04,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684822688] [2024-11-08 18:15:04,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:15:04,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:15:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:04,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:15:04,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:04,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:04,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 18:15:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:04,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 18:15:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:04,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:04,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:04,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:04,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:15:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:04,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 18:15:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:04,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:15:04,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:15:04,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684822688] [2024-11-08 18:15:04,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684822688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:15:04,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:15:04,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:15:04,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955041702] [2024-11-08 18:15:04,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:15:04,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:15:04,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:15:04,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:15:04,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:15:04,962 INFO L87 Difference]: Start difference. First operand 530 states and 885 transitions. Second operand has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 18:15:22,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:15:22,233 INFO L93 Difference]: Finished difference Result 2470 states and 4345 transitions. [2024-11-08 18:15:22,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 18:15:22,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 85 [2024-11-08 18:15:22,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:15:22,252 INFO L225 Difference]: With dead ends: 2470 [2024-11-08 18:15:22,252 INFO L226 Difference]: Without dead ends: 1958 [2024-11-08 18:15:22,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=258, Invalid=672, Unknown=0, NotChecked=0, Total=930 [2024-11-08 18:15:22,260 INFO L432 NwaCegarLoop]: 588 mSDtfsCounter, 4262 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 5807 mSolverCounterSat, 1340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4340 SdHoareTripleChecker+Valid, 4010 SdHoareTripleChecker+Invalid, 7147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1340 IncrementalHoareTripleChecker+Valid, 5807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:15:22,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4340 Valid, 4010 Invalid, 7147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1340 Valid, 5807 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2024-11-08 18:15:22,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1958 states. [2024-11-08 18:15:22,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1958 to 1395. [2024-11-08 18:15:22,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1094 states have (on average 1.653564899451554) internal successors, (1809), 1141 states have internal predecessors, (1809), 241 states have call successors, (241), 56 states have call predecessors, (241), 59 states have return successors, (275), 233 states have call predecessors, (275), 236 states have call successors, (275) [2024-11-08 18:15:22,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 2325 transitions. [2024-11-08 18:15:22,676 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 2325 transitions. Word has length 85 [2024-11-08 18:15:22,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:15:22,677 INFO L471 AbstractCegarLoop]: Abstraction has 1395 states and 2325 transitions. [2024-11-08 18:15:22,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.181818181818182) internal successors, (68), 8 states have internal predecessors, (68), 3 states have call successors, (9), 5 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-08 18:15:22,677 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 2325 transitions. [2024-11-08 18:15:22,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-08 18:15:22,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:15:22,683 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] [2024-11-08 18:15:22,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:15:22,684 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:15:22,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:15:22,686 INFO L85 PathProgramCache]: Analyzing trace with hash -2110879930, now seen corresponding path program 1 times [2024-11-08 18:15:22,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:15:22,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426525105] [2024-11-08 18:15:22,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:15:22,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:15:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:22,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:15:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:22,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:23,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 18:15:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:23,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 18:15:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:23,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:23,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:23,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:23,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:15:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:23,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:15:23,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:23,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 18:15:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:23,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:15:23,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:15:23,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426525105] [2024-11-08 18:15:23,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426525105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:15:23,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:15:23,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 18:15:23,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416541592] [2024-11-08 18:15:23,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:15:23,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:15:23,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:15:23,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:15:23,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:15:23,767 INFO L87 Difference]: Start difference. First operand 1395 states and 2325 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 18:15:32,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:15:32,945 INFO L93 Difference]: Finished difference Result 3473 states and 6017 transitions. [2024-11-08 18:15:32,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:15:32,946 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 94 [2024-11-08 18:15:32,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:15:32,964 INFO L225 Difference]: With dead ends: 3473 [2024-11-08 18:15:32,964 INFO L226 Difference]: Without dead ends: 1939 [2024-11-08 18:15:32,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:15:32,979 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 1533 mSDsluCounter, 2766 mSDsCounter, 0 mSdLazyCounter, 4999 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1598 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 5278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 4999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:15:32,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1598 Valid, 3242 Invalid, 5278 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [279 Valid, 4999 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-08 18:15:32,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2024-11-08 18:15:33,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1395. [2024-11-08 18:15:33,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1094 states have (on average 1.6371115173674589) internal successors, (1791), 1141 states have internal predecessors, (1791), 241 states have call successors, (241), 56 states have call predecessors, (241), 59 states have return successors, (275), 233 states have call predecessors, (275), 236 states have call successors, (275) [2024-11-08 18:15:33,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 2307 transitions. [2024-11-08 18:15:33,428 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 2307 transitions. Word has length 94 [2024-11-08 18:15:33,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:15:33,429 INFO L471 AbstractCegarLoop]: Abstraction has 1395 states and 2307 transitions. [2024-11-08 18:15:33,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-08 18:15:33,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 2307 transitions. [2024-11-08 18:15:33,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 18:15:33,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:15:33,432 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:15:33,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:15:33,433 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:15:33,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:15:33,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1651762209, now seen corresponding path program 1 times [2024-11-08 18:15:33,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:15:33,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967436132] [2024-11-08 18:15:33,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:15:33,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:15:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:33,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:15:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:33,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:33,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 18:15:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:34,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 18:15:34,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:34,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:34,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:34,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:34,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:15:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:34,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:15:34,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:34,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:15:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:34,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:15:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:15:34,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:15:34,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967436132] [2024-11-08 18:15:34,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967436132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:15:34,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:15:34,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:15:34,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14884388] [2024-11-08 18:15:34,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:15:34,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:15:34,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:15:34,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:15:34,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:15:34,214 INFO L87 Difference]: Start difference. First operand 1395 states and 2307 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:15:40,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:15:40,267 INFO L93 Difference]: Finished difference Result 3298 states and 5574 transitions. [2024-11-08 18:15:40,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:15:40,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2024-11-08 18:15:40,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:15:40,311 INFO L225 Difference]: With dead ends: 3298 [2024-11-08 18:15:40,311 INFO L226 Difference]: Without dead ends: 1921 [2024-11-08 18:15:40,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:15:40,322 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 1743 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 2560 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 3043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 2560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:15:40,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1815 Valid, 1705 Invalid, 3043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 2560 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-08 18:15:40,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2024-11-08 18:15:40,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1395. [2024-11-08 18:15:40,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1395 states, 1094 states have (on average 1.636197440585009) internal successors, (1790), 1141 states have internal predecessors, (1790), 241 states have call successors, (241), 56 states have call predecessors, (241), 59 states have return successors, (275), 233 states have call predecessors, (275), 236 states have call successors, (275) [2024-11-08 18:15:40,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1395 states to 1395 states and 2306 transitions. [2024-11-08 18:15:40,767 INFO L78 Accepts]: Start accepts. Automaton has 1395 states and 2306 transitions. Word has length 97 [2024-11-08 18:15:40,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:15:40,768 INFO L471 AbstractCegarLoop]: Abstraction has 1395 states and 2306 transitions. [2024-11-08 18:15:40,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:15:40,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1395 states and 2306 transitions. [2024-11-08 18:15:40,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-08 18:15:40,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:15:40,772 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:15:40,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:15:40,776 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:15:40,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:15:40,777 INFO L85 PathProgramCache]: Analyzing trace with hash 2091689218, now seen corresponding path program 1 times [2024-11-08 18:15:40,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:15:40,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286157969] [2024-11-08 18:15:40,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:15:40,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:15:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:41,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:15:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:41,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:41,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:15:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:41,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 18:15:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:41,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:41,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:41,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:41,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:15:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:41,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:15:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:41,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:15:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:41,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:15:41,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:41,826 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:15:41,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:15:41,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286157969] [2024-11-08 18:15:41,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286157969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:15:41,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:15:41,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:15:41,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989438675] [2024-11-08 18:15:41,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:15:41,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:15:41,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:15:41,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:15:41,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:15:41,829 INFO L87 Difference]: Start difference. First operand 1395 states and 2306 transitions. Second operand has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:15:51,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:15:51,519 INFO L93 Difference]: Finished difference Result 3392 states and 5825 transitions. [2024-11-08 18:15:51,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-08 18:15:51,520 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 98 [2024-11-08 18:15:51,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:15:51,538 INFO L225 Difference]: With dead ends: 3392 [2024-11-08 18:15:51,538 INFO L226 Difference]: Without dead ends: 2055 [2024-11-08 18:15:51,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=99, Invalid=453, Unknown=0, NotChecked=0, Total=552 [2024-11-08 18:15:51,548 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 1923 mSDsluCounter, 3906 mSDsCounter, 0 mSdLazyCounter, 6356 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 4432 SdHoareTripleChecker+Invalid, 6874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 6356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:15:51,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 4432 Invalid, 6874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [518 Valid, 6356 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-08 18:15:51,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2055 states. [2024-11-08 18:15:52,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2055 to 1415. [2024-11-08 18:15:52,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1104 states have (on average 1.6259057971014492) internal successors, (1795), 1158 states have internal predecessors, (1795), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-08 18:15:52,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 2346 transitions. [2024-11-08 18:15:52,061 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 2346 transitions. Word has length 98 [2024-11-08 18:15:52,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:15:52,061 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 2346 transitions. [2024-11-08 18:15:52,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.0) internal successors, (77), 8 states have internal predecessors, (77), 3 states have call successors, (11), 5 states have call predecessors, (11), 5 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:15:52,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 2346 transitions. [2024-11-08 18:15:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 18:15:52,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:15:52,066 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:15:52,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:15:52,066 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:15:52,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:15:52,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2088562940, now seen corresponding path program 1 times [2024-11-08 18:15:52,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:15:52,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891627699] [2024-11-08 18:15:52,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:15:52,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:15:52,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:52,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:15:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:52,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:52,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:15:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:52,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:15:52,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:52,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:52,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:15:52,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:52,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:15:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:52,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:15:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:52,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:15:52,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:52,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:15:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:52,814 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:15:52,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:15:52,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891627699] [2024-11-08 18:15:52,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891627699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:15:52,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:15:52,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:15:52,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26526699] [2024-11-08 18:15:52,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:15:52,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:15:52,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:15:52,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:15:52,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:15:52,817 INFO L87 Difference]: Start difference. First operand 1415 states and 2346 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:15:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:15:59,209 INFO L93 Difference]: Finished difference Result 3316 states and 5638 transitions. [2024-11-08 18:15:59,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:15:59,210 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 99 [2024-11-08 18:15:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:15:59,228 INFO L225 Difference]: With dead ends: 3316 [2024-11-08 18:15:59,228 INFO L226 Difference]: Without dead ends: 1959 [2024-11-08 18:15:59,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:15:59,237 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 994 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 2769 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1066 SdHoareTripleChecker+Valid, 1847 SdHoareTripleChecker+Invalid, 2974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 2769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:15:59,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1066 Valid, 1847 Invalid, 2974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 2769 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-08 18:15:59,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2024-11-08 18:15:59,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1415. [2024-11-08 18:15:59,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1104 states have (on average 1.6213768115942029) internal successors, (1790), 1158 states have internal predecessors, (1790), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-08 18:15:59,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 2341 transitions. [2024-11-08 18:15:59,734 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 2341 transitions. Word has length 99 [2024-11-08 18:15:59,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:15:59,735 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 2341 transitions. [2024-11-08 18:15:59,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:15:59,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 2341 transitions. [2024-11-08 18:15:59,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-08 18:15:59,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:15:59,744 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:15:59,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:15:59,744 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:15:59,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:15:59,745 INFO L85 PathProgramCache]: Analyzing trace with hash -2070883842, now seen corresponding path program 1 times [2024-11-08 18:15:59,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:15:59,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311417188] [2024-11-08 18:15:59,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:15:59,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:15:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:15:59,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:15:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:00,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:00,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:16:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:00,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 18:16:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:00,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:00,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:00,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:00,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:16:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:00,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:16:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:00,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:16:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:00,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:16:00,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:00,460 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:16:00,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:16:00,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311417188] [2024-11-08 18:16:00,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311417188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:16:00,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:16:00,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:16:00,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022391200] [2024-11-08 18:16:00,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:16:00,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:16:00,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:16:00,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:16:00,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:16:00,462 INFO L87 Difference]: Start difference. First operand 1415 states and 2341 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:16:06,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:16:06,354 INFO L93 Difference]: Finished difference Result 3316 states and 5633 transitions. [2024-11-08 18:16:06,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:16:06,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 100 [2024-11-08 18:16:06,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:16:06,371 INFO L225 Difference]: With dead ends: 3316 [2024-11-08 18:16:06,371 INFO L226 Difference]: Without dead ends: 1959 [2024-11-08 18:16:06,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:16:06,379 INFO L432 NwaCegarLoop]: 467 mSDtfsCounter, 1414 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 2544 mSolverCounterSat, 350 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1486 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 2894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 350 IncrementalHoareTripleChecker+Valid, 2544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:16:06,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1486 Valid, 1758 Invalid, 2894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [350 Valid, 2544 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-08 18:16:06,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2024-11-08 18:16:06,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1415. [2024-11-08 18:16:06,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1104 states have (on average 1.6168478260869565) internal successors, (1785), 1158 states have internal predecessors, (1785), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-08 18:16:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 2336 transitions. [2024-11-08 18:16:06,939 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 2336 transitions. Word has length 100 [2024-11-08 18:16:06,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:16:06,939 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 2336 transitions. [2024-11-08 18:16:06,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:16:06,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 2336 transitions. [2024-11-08 18:16:06,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 18:16:06,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:16:06,944 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:16:06,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:16:06,945 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:16:06,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:16:06,945 INFO L85 PathProgramCache]: Analyzing trace with hash -122090210, now seen corresponding path program 1 times [2024-11-08 18:16:06,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:16:06,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597782978] [2024-11-08 18:16:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:16:06,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:16:06,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:07,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:16:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:07,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:07,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:16:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:07,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:16:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:07,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:07,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:07,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:16:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:07,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:16:07,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:07,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:16:07,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:07,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:16:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:07,703 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:16:07,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:16:07,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597782978] [2024-11-08 18:16:07,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597782978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:16:07,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:16:07,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:16:07,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135290338] [2024-11-08 18:16:07,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:16:07,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:16:07,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:16:07,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:16:07,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:16:07,706 INFO L87 Difference]: Start difference. First operand 1415 states and 2336 transitions. Second operand has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:16:16,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:16:16,202 INFO L93 Difference]: Finished difference Result 3310 states and 5617 transitions. [2024-11-08 18:16:16,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:16:16,203 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 101 [2024-11-08 18:16:16,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:16:16,221 INFO L225 Difference]: With dead ends: 3310 [2024-11-08 18:16:16,222 INFO L226 Difference]: Without dead ends: 1959 [2024-11-08 18:16:16,228 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:16:16,229 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 964 mSDsluCounter, 2762 mSDsCounter, 0 mSdLazyCounter, 4843 mSolverCounterSat, 204 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 3236 SdHoareTripleChecker+Invalid, 5047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 204 IncrementalHoareTripleChecker+Valid, 4843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:16:16,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 3236 Invalid, 5047 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [204 Valid, 4843 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-08 18:16:16,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1959 states. [2024-11-08 18:16:16,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1959 to 1417. [2024-11-08 18:16:16,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1106 states have (on average 1.6157323688969258) internal successors, (1787), 1160 states have internal predecessors, (1787), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-08 18:16:16,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 2338 transitions. [2024-11-08 18:16:16,789 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 2338 transitions. Word has length 101 [2024-11-08 18:16:16,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:16:16,790 INFO L471 AbstractCegarLoop]: Abstraction has 1417 states and 2338 transitions. [2024-11-08 18:16:16,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.444444444444445) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:16:16,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 2338 transitions. [2024-11-08 18:16:16,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 18:16:16,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:16:16,794 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:16:16,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:16:16,794 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:16:16,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:16:16,795 INFO L85 PathProgramCache]: Analyzing trace with hash 695225311, now seen corresponding path program 1 times [2024-11-08 18:16:16,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:16:16,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788099682] [2024-11-08 18:16:16,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:16:16,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:16:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:17,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:16:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:17,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:17,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:16:17,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:17,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 18:16:17,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:17,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:17,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:17,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:17,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:17,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:16:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:17,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:16:17,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:17,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:16:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:17,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:16:17,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:17,499 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:16:17,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:16:17,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788099682] [2024-11-08 18:16:17,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788099682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:16:17,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:16:17,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:16:17,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676207419] [2024-11-08 18:16:17,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:16:17,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:16:17,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:16:17,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:16:17,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:16:17,502 INFO L87 Difference]: Start difference. First operand 1417 states and 2338 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:16:23,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:16:23,449 INFO L93 Difference]: Finished difference Result 3322 states and 5633 transitions. [2024-11-08 18:16:23,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:16:23,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 101 [2024-11-08 18:16:23,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:16:23,464 INFO L225 Difference]: With dead ends: 3322 [2024-11-08 18:16:23,465 INFO L226 Difference]: Without dead ends: 1963 [2024-11-08 18:16:23,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:16:23,471 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1808 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1880 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 2947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:16:23,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1880 Valid, 1722 Invalid, 2947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-08 18:16:23,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1963 states. [2024-11-08 18:16:23,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1963 to 1417. [2024-11-08 18:16:23,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1417 states, 1106 states have (on average 1.6112115732368897) internal successors, (1782), 1160 states have internal predecessors, (1782), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-08 18:16:23,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1417 states to 1417 states and 2333 transitions. [2024-11-08 18:16:23,874 INFO L78 Accepts]: Start accepts. Automaton has 1417 states and 2333 transitions. Word has length 101 [2024-11-08 18:16:23,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:16:23,874 INFO L471 AbstractCegarLoop]: Abstraction has 1417 states and 2333 transitions. [2024-11-08 18:16:23,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:16:23,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1417 states and 2333 transitions. [2024-11-08 18:16:23,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 18:16:23,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:16:23,878 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:16:23,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:16:23,878 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:16:23,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:16:23,879 INFO L85 PathProgramCache]: Analyzing trace with hash -491727076, now seen corresponding path program 1 times [2024-11-08 18:16:23,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:16:23,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831590915] [2024-11-08 18:16:23,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:16:23,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:16:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:24,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:16:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:24,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:24,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:16:24,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:24,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:16:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:24,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:24,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:24,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:24,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:16:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:24,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:16:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:24,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:16:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:24,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:16:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:24,594 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:16:24,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:16:24,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831590915] [2024-11-08 18:16:24,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831590915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:16:24,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:16:24,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:16:24,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245037630] [2024-11-08 18:16:24,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:16:24,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:16:24,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:16:24,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:16:24,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:16:24,596 INFO L87 Difference]: Start difference. First operand 1417 states and 2333 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:16:32,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:16:32,930 INFO L93 Difference]: Finished difference Result 3316 states and 5618 transitions. [2024-11-08 18:16:32,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:16:32,931 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 102 [2024-11-08 18:16:32,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:16:32,947 INFO L225 Difference]: With dead ends: 3316 [2024-11-08 18:16:32,947 INFO L226 Difference]: Without dead ends: 1965 [2024-11-08 18:16:32,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:16:32,954 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1362 mSDsluCounter, 2702 mSDsCounter, 0 mSdLazyCounter, 4716 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 3176 SdHoareTripleChecker+Invalid, 5058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 4716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:16:32,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 3176 Invalid, 5058 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [342 Valid, 4716 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-08 18:16:32,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-08 18:16:33,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1420. [2024-11-08 18:16:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1109 states have (on average 1.6095581605049594) internal successors, (1785), 1163 states have internal predecessors, (1785), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-08 18:16:33,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 2336 transitions. [2024-11-08 18:16:33,373 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 2336 transitions. Word has length 102 [2024-11-08 18:16:33,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:16:33,374 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 2336 transitions. [2024-11-08 18:16:33,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:16:33,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 2336 transitions. [2024-11-08 18:16:33,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 18:16:33,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:16:33,378 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:16:33,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:16:33,378 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:16:33,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:16:33,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1531647047, now seen corresponding path program 1 times [2024-11-08 18:16:33,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:16:33,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372841768] [2024-11-08 18:16:33,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:16:33,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:16:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:33,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:16:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:33,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:33,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:16:33,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:33,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:16:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:34,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:34,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:34,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:16:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:34,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:16:34,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:34,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:16:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:34,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:16:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:34,059 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:16:34,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:16:34,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372841768] [2024-11-08 18:16:34,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372841768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:16:34,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:16:34,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:16:34,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397253275] [2024-11-08 18:16:34,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:16:34,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:16:34,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:16:34,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:16:34,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:16:34,061 INFO L87 Difference]: Start difference. First operand 1420 states and 2336 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:16:39,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:16:39,768 INFO L93 Difference]: Finished difference Result 3331 states and 5636 transitions. [2024-11-08 18:16:39,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:16:39,769 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 102 [2024-11-08 18:16:39,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:16:39,784 INFO L225 Difference]: With dead ends: 3331 [2024-11-08 18:16:39,784 INFO L226 Difference]: Without dead ends: 1969 [2024-11-08 18:16:39,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 18:16:39,792 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 1799 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 2454 mSolverCounterSat, 472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 472 IncrementalHoareTripleChecker+Valid, 2454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:16:39,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1871 Valid, 1728 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [472 Valid, 2454 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 18:16:39,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2024-11-08 18:16:40,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1420. [2024-11-08 18:16:40,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1420 states, 1109 states have (on average 1.6050495942290353) internal successors, (1780), 1163 states have internal predecessors, (1780), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-08 18:16:40,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1420 states to 1420 states and 2331 transitions. [2024-11-08 18:16:40,234 INFO L78 Accepts]: Start accepts. Automaton has 1420 states and 2331 transitions. Word has length 102 [2024-11-08 18:16:40,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:16:40,235 INFO L471 AbstractCegarLoop]: Abstraction has 1420 states and 2331 transitions. [2024-11-08 18:16:40,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:16:40,235 INFO L276 IsEmpty]: Start isEmpty. Operand 1420 states and 2331 transitions. [2024-11-08 18:16:40,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:16:40,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:16:40,238 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:16:40,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 18:16:40,239 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:16:40,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:16:40,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1020799687, now seen corresponding path program 1 times [2024-11-08 18:16:40,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:16:40,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589163501] [2024-11-08 18:16:40,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:16:40,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:16:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:40,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:16:40,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:40,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:40,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:40,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:16:40,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:40,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 18:16:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:40,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:40,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:40,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:16:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:40,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:16:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:40,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:16:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:40,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:16:40,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:40,891 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:16:40,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:16:40,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589163501] [2024-11-08 18:16:40,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589163501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:16:40,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:16:40,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:16:40,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738340872] [2024-11-08 18:16:40,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:16:40,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:16:40,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:16:40,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:16:40,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:16:40,893 INFO L87 Difference]: Start difference. First operand 1420 states and 2331 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:16:46,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:16:46,976 INFO L93 Difference]: Finished difference Result 3316 states and 5610 transitions. [2024-11-08 18:16:46,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:16:46,977 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 103 [2024-11-08 18:16:46,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:16:46,987 INFO L225 Difference]: With dead ends: 3316 [2024-11-08 18:16:46,987 INFO L226 Difference]: Without dead ends: 1965 [2024-11-08 18:16:46,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:16:46,994 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1760 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 2414 mSolverCounterSat, 476 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1832 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 2890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 476 IncrementalHoareTripleChecker+Valid, 2414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:16:46,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1832 Valid, 1716 Invalid, 2890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [476 Valid, 2414 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 18:16:46,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-08 18:16:47,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1424. [2024-11-08 18:16:47,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1113 states have (on average 1.6028751123090745) internal successors, (1784), 1167 states have internal predecessors, (1784), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-08 18:16:47,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 2335 transitions. [2024-11-08 18:16:47,415 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 2335 transitions. Word has length 103 [2024-11-08 18:16:47,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:16:47,415 INFO L471 AbstractCegarLoop]: Abstraction has 1424 states and 2335 transitions. [2024-11-08 18:16:47,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:16:47,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 2335 transitions. [2024-11-08 18:16:47,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:16:47,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:16:47,419 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:16:47,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 18:16:47,419 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:16:47,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:16:47,420 INFO L85 PathProgramCache]: Analyzing trace with hash 372843706, now seen corresponding path program 1 times [2024-11-08 18:16:47,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:16:47,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314392136] [2024-11-08 18:16:47,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:16:47,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:16:47,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:47,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:16:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:47,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:47,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:16:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:48,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 18:16:48,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:48,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:48,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:48,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:48,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:16:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:48,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:16:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:48,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:16:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:48,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:16:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:48,111 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:16:48,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:16:48,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314392136] [2024-11-08 18:16:48,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314392136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:16:48,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:16:48,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:16:48,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550685824] [2024-11-08 18:16:48,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:16:48,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:16:48,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:16:48,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:16:48,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:16:48,114 INFO L87 Difference]: Start difference. First operand 1424 states and 2335 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:16:54,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:16:54,254 INFO L93 Difference]: Finished difference Result 3371 states and 5678 transitions. [2024-11-08 18:16:54,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:16:54,255 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 103 [2024-11-08 18:16:54,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:16:54,267 INFO L225 Difference]: With dead ends: 3371 [2024-11-08 18:16:54,267 INFO L226 Difference]: Without dead ends: 1965 [2024-11-08 18:16:54,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:16:54,273 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 1307 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 2509 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 2840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 2509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:16:54,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 1786 Invalid, 2840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 2509 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-08 18:16:54,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-08 18:16:54,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1424. [2024-11-08 18:16:54,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 1113 states have (on average 1.6019766397124888) internal successors, (1783), 1167 states have internal predecessors, (1783), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-08 18:16:54,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 2334 transitions. [2024-11-08 18:16:54,683 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 2334 transitions. Word has length 103 [2024-11-08 18:16:54,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:16:54,684 INFO L471 AbstractCegarLoop]: Abstraction has 1424 states and 2334 transitions. [2024-11-08 18:16:54,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:16:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 2334 transitions. [2024-11-08 18:16:54,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 18:16:54,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:16:54,709 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:16:54,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:16:54,709 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:16:54,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:16:54,710 INFO L85 PathProgramCache]: Analyzing trace with hash -795352549, now seen corresponding path program 1 times [2024-11-08 18:16:54,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:16:54,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623393554] [2024-11-08 18:16:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:16:54,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:16:54,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:54,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:16:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:55,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:55,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:16:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:55,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 18:16:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:55,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:55,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:16:55,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:55,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:16:55,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:55,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:16:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:55,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:16:55,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:55,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:16:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:16:55,472 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:16:55,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:16:55,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623393554] [2024-11-08 18:16:55,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623393554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:16:55,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:16:55,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:16:55,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586369746] [2024-11-08 18:16:55,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:16:55,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:16:55,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:16:55,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:16:55,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:16:55,475 INFO L87 Difference]: Start difference. First operand 1424 states and 2334 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:17:03,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:17:03,842 INFO L93 Difference]: Finished difference Result 3327 states and 5622 transitions. [2024-11-08 18:17:03,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-08 18:17:03,842 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 103 [2024-11-08 18:17:03,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:17:03,858 INFO L225 Difference]: With dead ends: 3327 [2024-11-08 18:17:03,858 INFO L226 Difference]: Without dead ends: 1955 [2024-11-08 18:17:03,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-08 18:17:03,867 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 1771 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 4613 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1843 SdHoareTripleChecker+Valid, 3119 SdHoareTripleChecker+Invalid, 5080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 4613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:17:03,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1843 Valid, 3119 Invalid, 5080 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [467 Valid, 4613 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-08 18:17:03,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2024-11-08 18:17:04,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1416. [2024-11-08 18:17:04,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1105 states have (on average 1.6036199095022625) internal successors, (1772), 1159 states have internal predecessors, (1772), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-08 18:17:04,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 2323 transitions. [2024-11-08 18:17:04,316 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 2323 transitions. Word has length 103 [2024-11-08 18:17:04,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:17:04,317 INFO L471 AbstractCegarLoop]: Abstraction has 1416 states and 2323 transitions. [2024-11-08 18:17:04,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:17:04,317 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 2323 transitions. [2024-11-08 18:17:04,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 18:17:04,320 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:17:04,321 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:17:04,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:17:04,321 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:17:04,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:17:04,322 INFO L85 PathProgramCache]: Analyzing trace with hash 243208662, now seen corresponding path program 1 times [2024-11-08 18:17:04,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:17:04,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008191251] [2024-11-08 18:17:04,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:17:04,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:17:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:04,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:17:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:04,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:04,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:17:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 18:17:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:17:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:17:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:17:05,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:17:05,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:05,106 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:17:05,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:17:05,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008191251] [2024-11-08 18:17:05,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008191251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:17:05,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:17:05,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:17:05,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374047978] [2024-11-08 18:17:05,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:17:05,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:17:05,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:17:05,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:17:05,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:17:05,110 INFO L87 Difference]: Start difference. First operand 1416 states and 2323 transitions. Second operand has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:17:13,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:17:13,549 INFO L93 Difference]: Finished difference Result 3316 states and 5605 transitions. [2024-11-08 18:17:13,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 18:17:13,550 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 104 [2024-11-08 18:17:13,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:17:13,564 INFO L225 Difference]: With dead ends: 3316 [2024-11-08 18:17:13,564 INFO L226 Difference]: Without dead ends: 1965 [2024-11-08 18:17:13,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-08 18:17:13,570 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 925 mSDsluCounter, 2752 mSDsCounter, 0 mSdLazyCounter, 4679 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 3224 SdHoareTripleChecker+Invalid, 4885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 4679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:17:13,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 3224 Invalid, 4885 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [206 Valid, 4679 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-08 18:17:13,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-08 18:17:14,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1421. [2024-11-08 18:17:14,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1110 states have (on average 1.600900900900901) internal successors, (1777), 1164 states have internal predecessors, (1777), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-08 18:17:14,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 2328 transitions. [2024-11-08 18:17:14,223 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 2328 transitions. Word has length 104 [2024-11-08 18:17:14,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:17:14,223 INFO L471 AbstractCegarLoop]: Abstraction has 1421 states and 2328 transitions. [2024-11-08 18:17:14,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.777777777777779) internal successors, (79), 6 states have internal predecessors, (79), 3 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-08 18:17:14,224 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 2328 transitions. [2024-11-08 18:17:14,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 18:17:14,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:17:14,226 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:17:14,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 18:17:14,227 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:17:14,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:17:14,227 INFO L85 PathProgramCache]: Analyzing trace with hash -217942041, now seen corresponding path program 1 times [2024-11-08 18:17:14,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:17:14,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745470326] [2024-11-08 18:17:14,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:17:14,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:17:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:14,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:17:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:14,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:14,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:14,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:17:14,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:14,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:17:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:14,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:14,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:14,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:14,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:17:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:14,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:17:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:14,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:17:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:14,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:17:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:14,909 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:17:14,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:17:14,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745470326] [2024-11-08 18:17:14,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745470326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:17:14,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:17:14,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:17:14,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601096823] [2024-11-08 18:17:14,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:17:14,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:17:14,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:17:14,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:17:14,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:17:14,912 INFO L87 Difference]: Start difference. First operand 1421 states and 2328 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:17:21,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:17:21,505 INFO L93 Difference]: Finished difference Result 3328 states and 5616 transitions. [2024-11-08 18:17:21,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 18:17:21,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 105 [2024-11-08 18:17:21,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:17:21,521 INFO L225 Difference]: With dead ends: 3328 [2024-11-08 18:17:21,521 INFO L226 Difference]: Without dead ends: 1956 [2024-11-08 18:17:21,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:17:21,527 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 937 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 2627 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 2627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:17:21,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1009 Valid, 1853 Invalid, 2830 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [203 Valid, 2627 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-08 18:17:21,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1956 states. [2024-11-08 18:17:22,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1956 to 1421. [2024-11-08 18:17:22,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1421 states, 1110 states have (on average 1.5972972972972972) internal successors, (1773), 1164 states have internal predecessors, (1773), 244 states have call successors, (244), 56 states have call predecessors, (244), 66 states have return successors, (307), 236 states have call predecessors, (307), 239 states have call successors, (307) [2024-11-08 18:17:22,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1421 states to 1421 states and 2324 transitions. [2024-11-08 18:17:22,243 INFO L78 Accepts]: Start accepts. Automaton has 1421 states and 2324 transitions. Word has length 105 [2024-11-08 18:17:22,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:17:22,244 INFO L471 AbstractCegarLoop]: Abstraction has 1421 states and 2324 transitions. [2024-11-08 18:17:22,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-08 18:17:22,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1421 states and 2324 transitions. [2024-11-08 18:17:22,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 18:17:22,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:17:22,247 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:17:22,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 18:17:22,247 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:17:22,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:17:22,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1952046491, now seen corresponding path program 1 times [2024-11-08 18:17:22,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:17:22,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152120094] [2024-11-08 18:17:22,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:17:22,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:17:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:22,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:17:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:22,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:22,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:17:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:22,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:17:22,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:23,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:23,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:23,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:23,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:17:23,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:23,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:17:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:23,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:17:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:23,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:17:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:23,379 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:17:23,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:17:23,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152120094] [2024-11-08 18:17:23,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152120094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:17:23,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:17:23,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-08 18:17:23,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275287292] [2024-11-08 18:17:23,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:17:23,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 18:17:23,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:17:23,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 18:17:23,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-08 18:17:23,385 INFO L87 Difference]: Start difference. First operand 1421 states and 2324 transitions. Second operand has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 12 states have internal predecessors, (80), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (10), 7 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-08 18:17:54,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:17:54,957 INFO L93 Difference]: Finished difference Result 5826 states and 10110 transitions. [2024-11-08 18:17:54,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-08 18:17:54,957 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 12 states have internal predecessors, (80), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (10), 7 states have call predecessors, (10), 4 states have call successors, (10) Word has length 105 [2024-11-08 18:17:54,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:17:54,980 INFO L225 Difference]: With dead ends: 5826 [2024-11-08 18:17:54,980 INFO L226 Difference]: Without dead ends: 4479 [2024-11-08 18:17:54,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1942 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=929, Invalid=4923, Unknown=0, NotChecked=0, Total=5852 [2024-11-08 18:17:54,990 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 13470 mSDsluCounter, 6426 mSDsCounter, 0 mSdLazyCounter, 11950 mSolverCounterSat, 4454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13545 SdHoareTripleChecker+Valid, 7259 SdHoareTripleChecker+Invalid, 16404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4454 IncrementalHoareTripleChecker+Valid, 11950 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:17:54,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13545 Valid, 7259 Invalid, 16404 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4454 Valid, 11950 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2024-11-08 18:17:54,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4479 states. [2024-11-08 18:17:56,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4479 to 3116. [2024-11-08 18:17:56,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3116 states, 2434 states have (on average 1.5747740345110928) internal successors, (3833), 2552 states have internal predecessors, (3833), 524 states have call successors, (524), 124 states have call predecessors, (524), 157 states have return successors, (699), 511 states have call predecessors, (699), 519 states have call successors, (699) [2024-11-08 18:17:56,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3116 states to 3116 states and 5056 transitions. [2024-11-08 18:17:56,022 INFO L78 Accepts]: Start accepts. Automaton has 3116 states and 5056 transitions. Word has length 105 [2024-11-08 18:17:56,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:17:56,023 INFO L471 AbstractCegarLoop]: Abstraction has 3116 states and 5056 transitions. [2024-11-08 18:17:56,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.333333333333333) internal successors, (80), 12 states have internal predecessors, (80), 5 states have call successors, (11), 5 states have call predecessors, (11), 6 states have return successors, (10), 7 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-08 18:17:56,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3116 states and 5056 transitions. [2024-11-08 18:17:56,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-08 18:17:56,025 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:17:56,026 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:17:56,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 18:17:56,026 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:17:56,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:17:56,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1738244086, now seen corresponding path program 1 times [2024-11-08 18:17:56,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:17:56,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553756346] [2024-11-08 18:17:56,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:17:56,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:17:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:56,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:17:56,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:56,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:56,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:17:56,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:56,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:17:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:56,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:56,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:17:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:56,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:17:56,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:56,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:17:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:56,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:17:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:56,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:17:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:56,925 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 18:17:56,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:17:56,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553756346] [2024-11-08 18:17:56,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553756346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:17:56,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762099596] [2024-11-08 18:17:56,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:17:56,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:17:56,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:17:56,929 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:17:56,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:17:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:17:57,324 INFO L255 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:17:57,335 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:17:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:17:57,566 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:17:57,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762099596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:17:57,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:17:57,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2024-11-08 18:17:57,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705670970] [2024-11-08 18:17:57,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:17:57,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:17:57,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:17:57,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:17:57,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:17:57,569 INFO L87 Difference]: Start difference. First operand 3116 states and 5056 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:17:59,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:17:59,064 INFO L93 Difference]: Finished difference Result 3232 states and 5243 transitions. [2024-11-08 18:17:59,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:17:59,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 106 [2024-11-08 18:17:59,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:17:59,084 INFO L225 Difference]: With dead ends: 3232 [2024-11-08 18:17:59,084 INFO L226 Difference]: Without dead ends: 3217 [2024-11-08 18:17:59,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:17:59,087 INFO L432 NwaCegarLoop]: 816 mSDtfsCounter, 769 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 777 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:17:59,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [777 Valid, 2112 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:17:59,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3217 states. [2024-11-08 18:18:00,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3217 to 3125. [2024-11-08 18:18:00,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 2443 states have (on average 1.5726565697912402) internal successors, (3842), 2561 states have internal predecessors, (3842), 524 states have call successors, (524), 124 states have call predecessors, (524), 157 states have return successors, (699), 511 states have call predecessors, (699), 519 states have call successors, (699) [2024-11-08 18:18:00,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 5065 transitions. [2024-11-08 18:18:00,263 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 5065 transitions. Word has length 106 [2024-11-08 18:18:00,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:18:00,264 INFO L471 AbstractCegarLoop]: Abstraction has 3125 states and 5065 transitions. [2024-11-08 18:18:00,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-08 18:18:00,264 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 5065 transitions. [2024-11-08 18:18:00,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 18:18:00,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:18:00,267 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:18:00,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:18:00,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:18:00,472 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:18:00,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:18:00,472 INFO L85 PathProgramCache]: Analyzing trace with hash 354989413, now seen corresponding path program 1 times [2024-11-08 18:18:00,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:18:00,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8217882] [2024-11-08 18:18:00,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:18:00,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:18:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:00,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:18:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:00,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:18:00,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:00,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:18:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:01,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:18:01,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:01,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:18:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:01,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:18:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:01,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:18:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:01,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:18:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:01,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:18:01,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:01,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:18:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:01,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:18:01,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:01,329 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-08 18:18:01,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:18:01,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8217882] [2024-11-08 18:18:01,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8217882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:18:01,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:18:01,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:18:01,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438617049] [2024-11-08 18:18:01,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:18:01,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:18:01,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:18:01,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:18:01,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:18:01,336 INFO L87 Difference]: Start difference. First operand 3125 states and 5065 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:18:13,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:18:13,675 INFO L93 Difference]: Finished difference Result 4225 states and 7164 transitions. [2024-11-08 18:18:13,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-08 18:18:13,676 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2024-11-08 18:18:13,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:18:13,696 INFO L225 Difference]: With dead ends: 4225 [2024-11-08 18:18:13,696 INFO L226 Difference]: Without dead ends: 4210 [2024-11-08 18:18:13,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2024-11-08 18:18:13,700 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 3827 mSDsluCounter, 2061 mSDsCounter, 0 mSdLazyCounter, 3925 mSolverCounterSat, 1180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3897 SdHoareTripleChecker+Valid, 2556 SdHoareTripleChecker+Invalid, 5105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1180 IncrementalHoareTripleChecker+Valid, 3925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:18:13,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3897 Valid, 2556 Invalid, 5105 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1180 Valid, 3925 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-08 18:18:13,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2024-11-08 18:18:15,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 3125. [2024-11-08 18:18:15,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3125 states, 2443 states have (on average 1.5697912402783463) internal successors, (3835), 2561 states have internal predecessors, (3835), 524 states have call successors, (524), 124 states have call predecessors, (524), 157 states have return successors, (699), 511 states have call predecessors, (699), 519 states have call successors, (699) [2024-11-08 18:18:15,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 5058 transitions. [2024-11-08 18:18:15,059 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 5058 transitions. Word has length 112 [2024-11-08 18:18:15,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:18:15,060 INFO L471 AbstractCegarLoop]: Abstraction has 3125 states and 5058 transitions. [2024-11-08 18:18:15,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 5 states have internal predecessors, (85), 3 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (11), 4 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-08 18:18:15,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 5058 transitions. [2024-11-08 18:18:15,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 18:18:15,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:18:15,063 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:18:15,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 18:18:15,064 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:18:15,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:18:15,064 INFO L85 PathProgramCache]: Analyzing trace with hash -1182877242, now seen corresponding path program 1 times [2024-11-08 18:18:15,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:18:15,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872069932] [2024-11-08 18:18:15,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:18:15,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:18:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:18:15,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:18:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:18:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:18:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:18:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:18:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:18:15,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:18:15,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:18:15,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:18:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:18:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 18:18:15,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:15,956 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 18:18:15,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:18:15,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872069932] [2024-11-08 18:18:15,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872069932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:18:15,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:18:15,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 18:18:15,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167067767] [2024-11-08 18:18:15,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:18:15,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 18:18:15,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:18:15,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 18:18:15,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 18:18:15,960 INFO L87 Difference]: Start difference. First operand 3125 states and 5058 transitions. Second operand has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:18:32,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:18:32,132 INFO L93 Difference]: Finished difference Result 7277 states and 12245 transitions. [2024-11-08 18:18:32,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-08 18:18:32,133 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 3 states have call successors, (12) Word has length 123 [2024-11-08 18:18:32,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:18:32,162 INFO L225 Difference]: With dead ends: 7277 [2024-11-08 18:18:32,162 INFO L226 Difference]: Without dead ends: 4238 [2024-11-08 18:18:32,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=299, Invalid=1183, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 18:18:32,177 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 4585 mSDsluCounter, 2179 mSDsCounter, 0 mSdLazyCounter, 5782 mSolverCounterSat, 1513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4590 SdHoareTripleChecker+Valid, 2571 SdHoareTripleChecker+Invalid, 7295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1513 IncrementalHoareTripleChecker+Valid, 5782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:18:32,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4590 Valid, 2571 Invalid, 7295 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1513 Valid, 5782 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-11-08 18:18:32,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4238 states. [2024-11-08 18:18:33,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4238 to 3141. [2024-11-08 18:18:33,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3141 states, 2455 states have (on average 1.5633401221995926) internal successors, (3838), 2573 states have internal predecessors, (3838), 524 states have call successors, (524), 124 states have call predecessors, (524), 161 states have return successors, (740), 515 states have call predecessors, (740), 519 states have call successors, (740) [2024-11-08 18:18:33,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3141 states to 3141 states and 5102 transitions. [2024-11-08 18:18:33,577 INFO L78 Accepts]: Start accepts. Automaton has 3141 states and 5102 transitions. Word has length 123 [2024-11-08 18:18:33,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:18:33,577 INFO L471 AbstractCegarLoop]: Abstraction has 3141 states and 5102 transitions. [2024-11-08 18:18:33,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.583333333333333) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:18:33,578 INFO L276 IsEmpty]: Start isEmpty. Operand 3141 states and 5102 transitions. [2024-11-08 18:18:33,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 18:18:33,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:18:33,581 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:18:33,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 18:18:33,581 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:18:33,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:18:33,581 INFO L85 PathProgramCache]: Analyzing trace with hash -53476209, now seen corresponding path program 1 times [2024-11-08 18:18:33,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:18:33,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044049488] [2024-11-08 18:18:33,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:18:33,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:18:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:33,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:18:33,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:33,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:18:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:33,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:18:33,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:34,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:18:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:34,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:18:34,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:34,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:18:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:34,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:18:34,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:34,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:18:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:34,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:18:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:34,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:18:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:34,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:18:34,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:34,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 18:18:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:18:34,407 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 18:18:34,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:18:34,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044049488] [2024-11-08 18:18:34,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044049488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:18:34,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:18:34,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 18:18:34,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814425929] [2024-11-08 18:18:34,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:18:34,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:18:34,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:18:34,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:18:34,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:18:34,409 INFO L87 Difference]: Start difference. First operand 3141 states and 5102 transitions. Second operand has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 6 states have internal predecessors, (92), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:18:57,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:18:57,406 INFO L93 Difference]: Finished difference Result 11170 states and 19178 transitions. [2024-11-08 18:18:57,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-08 18:18:57,407 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 6 states have internal predecessors, (92), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) Word has length 124 [2024-11-08 18:18:57,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:18:57,463 INFO L225 Difference]: With dead ends: 11170 [2024-11-08 18:18:57,463 INFO L226 Difference]: Without dead ends: 8115 [2024-11-08 18:18:57,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=246, Invalid=684, Unknown=0, NotChecked=0, Total=930 [2024-11-08 18:18:57,485 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 5497 mSDsluCounter, 2117 mSDsCounter, 0 mSdLazyCounter, 4843 mSolverCounterSat, 1528 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5564 SdHoareTripleChecker+Valid, 2677 SdHoareTripleChecker+Invalid, 6371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1528 IncrementalHoareTripleChecker+Valid, 4843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:18:57,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5564 Valid, 2677 Invalid, 6371 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1528 Valid, 4843 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2024-11-08 18:18:57,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8115 states. [2024-11-08 18:18:59,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8115 to 6133. [2024-11-08 18:18:59,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6133 states, 4799 states have (on average 1.5661596165867888) internal successors, (7516), 5038 states have internal predecessors, (7516), 1010 states have call successors, (1010), 242 states have call predecessors, (1010), 323 states have return successors, (1573), 996 states have call predecessors, (1573), 1005 states have call successors, (1573) [2024-11-08 18:18:59,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6133 states to 6133 states and 10099 transitions. [2024-11-08 18:18:59,874 INFO L78 Accepts]: Start accepts. Automaton has 6133 states and 10099 transitions. Word has length 124 [2024-11-08 18:18:59,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:18:59,875 INFO L471 AbstractCegarLoop]: Abstraction has 6133 states and 10099 transitions. [2024-11-08 18:18:59,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.222222222222221) internal successors, (92), 6 states have internal predecessors, (92), 4 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 4 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-08 18:18:59,876 INFO L276 IsEmpty]: Start isEmpty. Operand 6133 states and 10099 transitions. [2024-11-08 18:18:59,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-08 18:18:59,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:18:59,879 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:18:59,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 18:18:59,880 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:18:59,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:18:59,880 INFO L85 PathProgramCache]: Analyzing trace with hash 2101235451, now seen corresponding path program 1 times [2024-11-08 18:18:59,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:18:59,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579121562] [2024-11-08 18:18:59,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:18:59,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:18:59,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:19:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:19:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:19:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:19:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:19:00,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:19:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:19:00,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 18:19:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 18:19:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 18:19:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 18:19:00,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 18:19:00,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 18:19:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:00,751 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 18:19:00,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:00,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579121562] [2024-11-08 18:19:00,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579121562] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:19:00,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530656052] [2024-11-08 18:19:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:00,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:19:00,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:19:00,755 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:19:00,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:19:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:01,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 1501 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 18:19:01,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:19:01,294 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 18:19:01,294 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:19:01,651 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 18:19:01,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530656052] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:19:01,651 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:19:01,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 13 [2024-11-08 18:19:01,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163282050] [2024-11-08 18:19:01,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:19:01,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-08 18:19:01,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:01,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-08 18:19:01,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:19:01,654 INFO L87 Difference]: Start difference. First operand 6133 states and 10099 transitions. Second operand has 13 states, 13 states have (on average 11.076923076923077) internal successors, (144), 10 states have internal predecessors, (144), 6 states have call successors, (26), 8 states have call predecessors, (26), 5 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-08 18:19:21,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:19:21,721 INFO L93 Difference]: Finished difference Result 15530 states and 26664 transitions. [2024-11-08 18:19:21,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-08 18:19:21,722 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 11.076923076923077) internal successors, (144), 10 states have internal predecessors, (144), 6 states have call successors, (26), 8 states have call predecessors, (26), 5 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) Word has length 132 [2024-11-08 18:19:21,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:19:21,774 INFO L225 Difference]: With dead ends: 15530 [2024-11-08 18:19:21,774 INFO L226 Difference]: Without dead ends: 9479 [2024-11-08 18:19:21,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=271, Invalid=851, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 18:19:21,804 INFO L432 NwaCegarLoop]: 602 mSDtfsCounter, 4207 mSDsluCounter, 2942 mSDsCounter, 0 mSdLazyCounter, 5975 mSolverCounterSat, 1200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4274 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 7175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1200 IncrementalHoareTripleChecker+Valid, 5975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:19:21,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4274 Valid, 3544 Invalid, 7175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1200 Valid, 5975 Invalid, 0 Unknown, 0 Unchecked, 10.3s Time] [2024-11-08 18:19:21,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9479 states. [2024-11-08 18:19:24,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9479 to 6974. [2024-11-08 18:19:24,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6974 states, 5467 states have (on average 1.553137003841229) internal successors, (8491), 5731 states have internal predecessors, (8491), 1125 states have call successors, (1125), 282 states have call predecessors, (1125), 381 states have return successors, (1769), 1105 states have call predecessors, (1769), 1120 states have call successors, (1769) [2024-11-08 18:19:24,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6974 states to 6974 states and 11385 transitions. [2024-11-08 18:19:24,627 INFO L78 Accepts]: Start accepts. Automaton has 6974 states and 11385 transitions. Word has length 132 [2024-11-08 18:19:24,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:19:24,627 INFO L471 AbstractCegarLoop]: Abstraction has 6974 states and 11385 transitions. [2024-11-08 18:19:24,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 11.076923076923077) internal successors, (144), 10 states have internal predecessors, (144), 6 states have call successors, (26), 8 states have call predecessors, (26), 5 states have return successors, (19), 6 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-08 18:19:24,627 INFO L276 IsEmpty]: Start isEmpty. Operand 6974 states and 11385 transitions. [2024-11-08 18:19:24,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-08 18:19:24,631 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:19:24,631 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:24,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:19:24,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:19:24,833 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:19:24,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:24,833 INFO L85 PathProgramCache]: Analyzing trace with hash 40327509, now seen corresponding path program 1 times [2024-11-08 18:19:24,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:24,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968058119] [2024-11-08 18:19:24,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:24,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:19:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:19:25,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:19:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:19:25,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:19:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:19:25,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:19:25,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:19:25,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:19:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:19:25,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 18:19:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 18:19:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-08 18:19:25,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-08 18:19:25,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:25,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968058119] [2024-11-08 18:19:25,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968058119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:25,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:19:25,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 18:19:25,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561689656] [2024-11-08 18:19:25,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:25,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:19:25,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:25,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:19:25,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:19:25,719 INFO L87 Difference]: Start difference. First operand 6974 states and 11385 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 18:19:43,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:19:43,777 INFO L93 Difference]: Finished difference Result 16649 states and 28274 transitions. [2024-11-08 18:19:43,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 18:19:43,777 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 135 [2024-11-08 18:19:43,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:19:43,829 INFO L225 Difference]: With dead ends: 16649 [2024-11-08 18:19:43,829 INFO L226 Difference]: Without dead ends: 9761 [2024-11-08 18:19:43,854 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2024-11-08 18:19:43,854 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 3159 mSDsluCounter, 2968 mSDsCounter, 0 mSdLazyCounter, 5079 mSolverCounterSat, 883 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 3553 SdHoareTripleChecker+Invalid, 5962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 883 IncrementalHoareTripleChecker+Valid, 5079 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:19:43,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3224 Valid, 3553 Invalid, 5962 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [883 Valid, 5079 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2024-11-08 18:19:43,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9761 states. [2024-11-08 18:19:46,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9761 to 7568. [2024-11-08 18:19:46,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7568 states, 5973 states have (on average 1.543110664657626) internal successors, (9217), 6237 states have internal predecessors, (9217), 1173 states have call successors, (1173), 322 states have call predecessors, (1173), 421 states have return successors, (1764), 1153 states have call predecessors, (1764), 1168 states have call successors, (1764) [2024-11-08 18:19:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7568 states to 7568 states and 12154 transitions. [2024-11-08 18:19:46,677 INFO L78 Accepts]: Start accepts. Automaton has 7568 states and 12154 transitions. Word has length 135 [2024-11-08 18:19:46,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:19:46,678 INFO L471 AbstractCegarLoop]: Abstraction has 7568 states and 12154 transitions. [2024-11-08 18:19:46,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 7 states have internal predecessors, (99), 4 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 18:19:46,678 INFO L276 IsEmpty]: Start isEmpty. Operand 7568 states and 12154 transitions. [2024-11-08 18:19:46,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-08 18:19:46,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:19:46,682 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:19:46,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 18:19:46,682 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:19:46,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:19:46,683 INFO L85 PathProgramCache]: Analyzing trace with hash 499724507, now seen corresponding path program 1 times [2024-11-08 18:19:46,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:19:46,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665569807] [2024-11-08 18:19:46,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:46,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:19:46,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:46,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:19:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:46,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:19:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:46,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:19:46,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:19:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:19:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:19:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:19:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:19:47,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:19:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:19:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:19:47,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 18:19:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:19:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:19:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 18:19:47,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:19:47,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665569807] [2024-11-08 18:19:47,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665569807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:19:47,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446138660] [2024-11-08 18:19:47,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:19:47,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:19:47,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:19:47,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:19:47,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:19:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:19:48,251 INFO L255 TraceCheckSpWp]: Trace formula consists of 1508 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:19:48,255 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:19:48,365 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:19:48,365 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:19:48,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446138660] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:19:48,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:19:48,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 17 [2024-11-08 18:19:48,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221141196] [2024-11-08 18:19:48,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:19:48,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:19:48,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:19:48,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:19:48,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:19:48,368 INFO L87 Difference]: Start difference. First operand 7568 states and 12154 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 18:19:56,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:19:56,749 INFO L93 Difference]: Finished difference Result 24137 states and 39835 transitions. [2024-11-08 18:19:56,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:19:56,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 139 [2024-11-08 18:19:56,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:19:56,826 INFO L225 Difference]: With dead ends: 24137 [2024-11-08 18:19:56,826 INFO L226 Difference]: Without dead ends: 16651 [2024-11-08 18:19:56,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:19:56,849 INFO L432 NwaCegarLoop]: 396 mSDtfsCounter, 1811 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1883 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 1556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:19:56,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1883 Valid, 918 Invalid, 1556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 1193 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 18:19:56,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16651 states. [2024-11-08 18:20:03,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16651 to 16051. [2024-11-08 18:20:03,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16051 states, 12485 states have (on average 1.5417701241489787) internal successors, (19249), 13095 states have internal predecessors, (19249), 2689 states have call successors, (2689), 639 states have call predecessors, (2689), 876 states have return successors, (4462), 2666 states have call predecessors, (4462), 2684 states have call successors, (4462) [2024-11-08 18:20:03,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16051 states to 16051 states and 26400 transitions. [2024-11-08 18:20:03,459 INFO L78 Accepts]: Start accepts. Automaton has 16051 states and 26400 transitions. Word has length 139 [2024-11-08 18:20:03,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:03,459 INFO L471 AbstractCegarLoop]: Abstraction has 16051 states and 26400 transitions. [2024-11-08 18:20:03,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 18:20:03,460 INFO L276 IsEmpty]: Start isEmpty. Operand 16051 states and 26400 transitions. [2024-11-08 18:20:03,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 18:20:03,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:03,467 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:03,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 18:20:03,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:20:03,667 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:03,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:03,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1688533080, now seen corresponding path program 1 times [2024-11-08 18:20:03,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:03,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305085037] [2024-11-08 18:20:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:03,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:03,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:04,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:20:04,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:04,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:20:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:04,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:20:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:04,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:20:04,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:04,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:20:04,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:04,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:20:04,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:04,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:20:04,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:04,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:20:04,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:04,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:20:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:04,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:20:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:04,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:20:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:05,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 18:20:05,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:05,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 18:20:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:05,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 18:20:05,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 18:20:05,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:05,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305085037] [2024-11-08 18:20:05,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305085037] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:20:05,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008483429] [2024-11-08 18:20:05,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:05,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:20:05,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:20:05,042 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:20:05,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:20:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:05,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 1510 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:20:05,432 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:20:05,561 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 18:20:05,561 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:20:05,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008483429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:05,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:20:05,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [17] total 17 [2024-11-08 18:20:05,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579246326] [2024-11-08 18:20:05,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:05,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:20:05,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:05,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:20:05,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-08 18:20:05,563 INFO L87 Difference]: Start difference. First operand 16051 states and 26400 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 18:20:23,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:20:23,456 INFO L93 Difference]: Finished difference Result 51658 states and 88973 transitions. [2024-11-08 18:20:23,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:20:23,457 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 140 [2024-11-08 18:20:23,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:20:23,720 INFO L225 Difference]: With dead ends: 51658 [2024-11-08 18:20:23,721 INFO L226 Difference]: Without dead ends: 35685 [2024-11-08 18:20:23,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:20:23,809 INFO L432 NwaCegarLoop]: 372 mSDtfsCounter, 1797 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 873 SdHoareTripleChecker+Invalid, 1542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:20:23,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 873 Invalid, 1542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 18:20:23,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35685 states. [2024-11-08 18:20:38,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35685 to 34790. [2024-11-08 18:20:38,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34790 states, 26594 states have (on average 1.5372264420545987) internal successors, (40881), 28037 states have internal predecessors, (40881), 6356 states have call successors, (6356), 1269 states have call predecessors, (6356), 1839 states have return successors, (12163), 6351 states have call predecessors, (12163), 6351 states have call successors, (12163) [2024-11-08 18:20:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34790 states to 34790 states and 59400 transitions. [2024-11-08 18:20:38,927 INFO L78 Accepts]: Start accepts. Automaton has 34790 states and 59400 transitions. Word has length 140 [2024-11-08 18:20:38,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:20:38,927 INFO L471 AbstractCegarLoop]: Abstraction has 34790 states and 59400 transitions. [2024-11-08 18:20:38,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 18:20:38,928 INFO L276 IsEmpty]: Start isEmpty. Operand 34790 states and 59400 transitions. [2024-11-08 18:20:38,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-08 18:20:38,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:20:38,932 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:20:38,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:20:39,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0729d80f-2a99-4d33-8723-9ae7adc0a305/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-08 18:20:39,133 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:20:39,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:20:39,134 INFO L85 PathProgramCache]: Analyzing trace with hash -889387440, now seen corresponding path program 1 times [2024-11-08 18:20:39,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:20:39,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053551574] [2024-11-08 18:20:39,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:20:39,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:20:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 18:20:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:20:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 18:20:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 18:20:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:20:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 18:20:39,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 18:20:39,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:20:39,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 18:20:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 18:20:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-08 18:20:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:20:39,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 18:20:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 18:20:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:39,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-08 18:20:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:20:40,003 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 18:20:40,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:20:40,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053551574] [2024-11-08 18:20:40,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053551574] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:20:40,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:20:40,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:20:40,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856227728] [2024-11-08 18:20:40,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:20:40,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:20:40,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:20:40,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:20:40,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:20:40,006 INFO L87 Difference]: Start difference. First operand 34790 states and 59400 transitions. Second operand has 8 states, 8 states have (on average 12.875) internal successors, (103), 5 states have internal predecessors, (103), 5 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 4 states have call predecessors, (15), 4 states have call successors, (15)