./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC --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 c39b0b488ad07619ca8d4ed9273747459006984c072c0894ad54004ae965569d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:45:16,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:45:16,212 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:45:16,222 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:45:16,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:45:16,271 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:45:16,272 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:45:16,272 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:45:16,273 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:45:16,273 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:45:16,274 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:45:16,275 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:45:16,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:45:16,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:45:16,276 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:45:16,276 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:45:16,277 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:45:16,277 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:45:16,277 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:45:16,277 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:45:16,278 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:45:16,278 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:45:16,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:45:16,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:45:16,278 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:45:16,278 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:45:16,278 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:45:16,279 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:45:16,279 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:45:16,279 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:45:16,280 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:45:16,280 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:45:16,280 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:16,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:45:16,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:45:16,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:45:16,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:45:16,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:16,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:45:16,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:45:16,282 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:45:16,282 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:45:16,282 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:45:16,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:45:16,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:45:16,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:45:16,283 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:45:16,283 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:45:16,283 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC 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 -> c39b0b488ad07619ca8d4ed9273747459006984c072c0894ad54004ae965569d [2024-11-24 00:45:16,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:45:16,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:45:16,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:45:16,670 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:45:16,670 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:45:16,673 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c [2024-11-24 00:45:20,303 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/data/4d83235c4/6c1b3e9d7426472b951ea4287d9a854b/FLAG5f8a66c8e [2024-11-24 00:45:20,885 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:45:20,889 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c [2024-11-24 00:45:20,931 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/data/4d83235c4/6c1b3e9d7426472b951ea4287d9a854b/FLAG5f8a66c8e [2024-11-24 00:45:20,956 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/data/4d83235c4/6c1b3e9d7426472b951ea4287d9a854b [2024-11-24 00:45:20,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:45:20,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:45:20,963 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:45:20,964 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:45:20,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:45:20,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:45:20" (1/1) ... [2024-11-24 00:45:20,977 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227a78d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:20, skipping insertion in model container [2024-11-24 00:45:20,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:45:20" (1/1) ... [2024-11-24 00:45:21,071 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:45:21,780 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_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c[70298,70311] [2024-11-24 00:45:21,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:45:21,822 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:45:21,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-24 00:45:21,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [412] [2024-11-24 00:45:21,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1940] [2024-11-24 00:45:21,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2058] [2024-11-24 00:45:21,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2070] [2024-11-24 00:45:21,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2436] [2024-11-24 00:45:21,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2471] [2024-11-24 00:45:21,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [3132] [2024-11-24 00:45:21,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3314] [2024-11-24 00:45:21,839 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3323] [2024-11-24 00:45:22,067 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_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/sv-benchmarks/c/product-lines/elevator_spec2_product26.cil.c[70298,70311] [2024-11-24 00:45:22,076 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:45:22,121 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:45:22,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22 WrapperNode [2024-11-24 00:45:22,122 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:45:22,124 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:45:22,124 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:45:22,124 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:45:22,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,214 INFO L138 Inliner]: procedures = 93, calls = 340, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 859 [2024-11-24 00:45:22,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:45:22,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:45:22,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:45:22,215 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:45:22,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,238 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,296 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]. [2024-11-24 00:45:22,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,300 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,337 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,343 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,383 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,391 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,410 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:45:22,411 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:45:22,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:45:22,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:45:22,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (1/1) ... [2024-11-24 00:45:22,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:22,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:45:22,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:45:22,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c8cd9cc-8704-4d84-a6d9-606b6f2d63be/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:45:22,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:45:22,514 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-24 00:45:22,515 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-24 00:45:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-24 00:45:22,515 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-24 00:45:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-24 00:45:22,516 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-24 00:45:22,516 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-24 00:45:22,517 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-24 00:45:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-24 00:45:22,517 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-24 00:45:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-24 00:45:22,517 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-24 00:45:22,517 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-24 00:45:22,517 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-24 00:45:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-24 00:45:22,518 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-24 00:45:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-24 00:45:22,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-24 00:45:22,518 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-24 00:45:22,520 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-24 00:45:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-24 00:45:22,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-24 00:45:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-24 00:45:22,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-24 00:45:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-24 00:45:22,521 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-24 00:45:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-24 00:45:22,521 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-24 00:45:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__empty [2024-11-24 00:45:22,521 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__empty [2024-11-24 00:45:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-24 00:45:22,521 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-24 00:45:22,521 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-24 00:45:22,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-24 00:45:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-24 00:45:22,522 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-24 00:45:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:45:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:45:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:45:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:45:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:45:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:45:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 00:45:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 00:45:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 00:45:22,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 00:45:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 00:45:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-24 00:45:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-24 00:45:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-24 00:45:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-24 00:45:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-24 00:45:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-24 00:45:22,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-24 00:45:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-24 00:45:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-24 00:45:22,524 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-24 00:45:22,526 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-24 00:45:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-24 00:45:22,527 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-24 00:45:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-24 00:45:22,527 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-24 00:45:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:45:22,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:45:22,527 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-24 00:45:22,527 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-24 00:45:22,813 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:45:22,815 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:45:24,937 INFO L? ?]: Removed 441 outVars from TransFormulas that were not future-live. [2024-11-24 00:45:24,937 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:45:24,985 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:45:24,989 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:45:24,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:24 BoogieIcfgContainer [2024-11-24 00:45:24,990 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:45:24,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:45:24,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:45:25,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:45:25,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:45:20" (1/3) ... [2024-11-24 00:45:25,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ceda38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:45:25, skipping insertion in model container [2024-11-24 00:45:25,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:22" (2/3) ... [2024-11-24 00:45:25,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41ceda38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:45:25, skipping insertion in model container [2024-11-24 00:45:25,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:24" (3/3) ... [2024-11-24 00:45:25,006 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product26.cil.c [2024-11-24 00:45:25,028 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:45:25,032 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product26.cil.c that has 23 procedures, 549 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:45:25,193 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:45:25,213 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;@187384fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:45:25,213 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:45:25,222 INFO L276 IsEmpty]: Start isEmpty. Operand has 549 states, 434 states have (on average 1.7096774193548387) internal successors, (742), 457 states have internal predecessors, (742), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 84 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-24 00:45:25,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-24 00:45:25,239 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:25,240 INFO L218 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] [2024-11-24 00:45:25,240 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:25,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:25,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1083638953, now seen corresponding path program 1 times [2024-11-24 00:45:25,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:25,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100170529] [2024-11-24 00:45:25,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:25,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:26,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:26,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:26,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100170529] [2024-11-24 00:45:26,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100170529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:26,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:26,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:26,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808751653] [2024-11-24 00:45:26,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:26,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:26,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:26,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:26,172 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:26,177 INFO L87 Difference]: Start difference. First operand has 549 states, 434 states have (on average 1.7096774193548387) internal successors, (742), 457 states have internal predecessors, (742), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 84 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:26,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:26,493 INFO L93 Difference]: Finished difference Result 1078 states and 1823 transitions. [2024-11-24 00:45:26,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:26,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2024-11-24 00:45:26,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:26,518 INFO L225 Difference]: With dead ends: 1078 [2024-11-24 00:45:26,519 INFO L226 Difference]: Without dead ends: 541 [2024-11-24 00:45:26,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:26,536 INFO L435 NwaCegarLoop]: 903 mSDtfsCounter, 5 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:26,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2705 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:26,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-24 00:45:26,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-24 00:45:26,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 428 states have (on average 1.705607476635514) internal successors, (730), 449 states have internal predecessors, (730), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:26,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 907 transitions. [2024-11-24 00:45:26,694 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 907 transitions. Word has length 56 [2024-11-24 00:45:26,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:26,695 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 907 transitions. [2024-11-24 00:45:26,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:26,696 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 907 transitions. [2024-11-24 00:45:26,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-24 00:45:26,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:26,708 INFO L218 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] [2024-11-24 00:45:26,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:45:26,708 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:26,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:26,709 INFO L85 PathProgramCache]: Analyzing trace with hash -197698142, now seen corresponding path program 1 times [2024-11-24 00:45:26,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:26,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672703388] [2024-11-24 00:45:26,710 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:26,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:27,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:27,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:27,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672703388] [2024-11-24 00:45:27,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672703388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:27,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:27,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:27,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640835513] [2024-11-24 00:45:27,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:27,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:27,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:27,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:27,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:27,114 INFO L87 Difference]: Start difference. First operand 541 states and 907 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:27,292 INFO L93 Difference]: Finished difference Result 1064 states and 1791 transitions. [2024-11-24 00:45:27,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:27,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58 [2024-11-24 00:45:27,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:27,307 INFO L225 Difference]: With dead ends: 1064 [2024-11-24 00:45:27,308 INFO L226 Difference]: Without dead ends: 541 [2024-11-24 00:45:27,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:27,316 INFO L435 NwaCegarLoop]: 896 mSDtfsCounter, 4 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:27,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2684 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:27,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-24 00:45:27,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-24 00:45:27,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 428 states have (on average 1.7032710280373833) internal successors, (729), 449 states have internal predecessors, (729), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:27,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 906 transitions. [2024-11-24 00:45:27,395 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 906 transitions. Word has length 58 [2024-11-24 00:45:27,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:27,397 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 906 transitions. [2024-11-24 00:45:27,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:27,397 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 906 transitions. [2024-11-24 00:45:27,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-24 00:45:27,402 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:27,402 INFO L218 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] [2024-11-24 00:45:27,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:45:27,403 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:27,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:27,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1548622430, now seen corresponding path program 1 times [2024-11-24 00:45:27,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:27,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681379462] [2024-11-24 00:45:27,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:27,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:27,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:27,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:27,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:27,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681379462] [2024-11-24 00:45:27,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681379462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:27,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:27,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:27,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73762052] [2024-11-24 00:45:27,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:27,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:27,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:27,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:27,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:27,720 INFO L87 Difference]: Start difference. First operand 541 states and 906 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:27,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:27,861 INFO L93 Difference]: Finished difference Result 1064 states and 1790 transitions. [2024-11-24 00:45:27,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:27,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 59 [2024-11-24 00:45:27,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:27,869 INFO L225 Difference]: With dead ends: 1064 [2024-11-24 00:45:27,869 INFO L226 Difference]: Without dead ends: 541 [2024-11-24 00:45:27,872 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:27,873 INFO L435 NwaCegarLoop]: 896 mSDtfsCounter, 3 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:27,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2684 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-24 00:45:27,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-24 00:45:27,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 428 states have (on average 1.7009345794392523) internal successors, (728), 449 states have internal predecessors, (728), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:27,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 905 transitions. [2024-11-24 00:45:27,939 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 905 transitions. Word has length 59 [2024-11-24 00:45:27,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:27,941 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 905 transitions. [2024-11-24 00:45:27,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:27,941 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 905 transitions. [2024-11-24 00:45:27,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-24 00:45:27,946 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:27,947 INFO L218 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] [2024-11-24 00:45:27,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:45:27,947 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:27,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:27,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1309370278, now seen corresponding path program 1 times [2024-11-24 00:45:27,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:27,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253438067] [2024-11-24 00:45:27,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:27,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:28,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:28,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:28,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253438067] [2024-11-24 00:45:28,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253438067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:28,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:28,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:28,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201654265] [2024-11-24 00:45:28,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:28,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:28,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:28,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:28,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:28,197 INFO L87 Difference]: Start difference. First operand 541 states and 905 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:28,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:28,288 INFO L93 Difference]: Finished difference Result 1064 states and 1789 transitions. [2024-11-24 00:45:28,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:28,289 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 60 [2024-11-24 00:45:28,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:28,296 INFO L225 Difference]: With dead ends: 1064 [2024-11-24 00:45:28,296 INFO L226 Difference]: Without dead ends: 541 [2024-11-24 00:45:28,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:28,301 INFO L435 NwaCegarLoop]: 896 mSDtfsCounter, 2 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:28,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2684 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:28,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-24 00:45:28,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-24 00:45:28,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 428 states have (on average 1.6985981308411215) internal successors, (727), 449 states have internal predecessors, (727), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:28,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 904 transitions. [2024-11-24 00:45:28,370 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 904 transitions. Word has length 60 [2024-11-24 00:45:28,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:28,372 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 904 transitions. [2024-11-24 00:45:28,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:28,372 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 904 transitions. [2024-11-24 00:45:28,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-24 00:45:28,376 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:28,376 INFO L218 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] [2024-11-24 00:45:28,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:45:28,376 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:28,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:28,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1499803686, now seen corresponding path program 1 times [2024-11-24 00:45:28,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:28,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754406842] [2024-11-24 00:45:28,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:28,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:28,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:28,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:28,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754406842] [2024-11-24 00:45:28,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754406842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:28,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:28,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:28,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728779558] [2024-11-24 00:45:28,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:28,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:28,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:28,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:28,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:28,623 INFO L87 Difference]: Start difference. First operand 541 states and 904 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:28,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:28,717 INFO L93 Difference]: Finished difference Result 1064 states and 1788 transitions. [2024-11-24 00:45:28,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:28,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2024-11-24 00:45:28,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:28,725 INFO L225 Difference]: With dead ends: 1064 [2024-11-24 00:45:28,725 INFO L226 Difference]: Without dead ends: 541 [2024-11-24 00:45:28,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:28,730 INFO L435 NwaCegarLoop]: 896 mSDtfsCounter, 1 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:28,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2684 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:28,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-24 00:45:28,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2024-11-24 00:45:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 428 states have (on average 1.6962616822429906) internal successors, (726), 449 states have internal predecessors, (726), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:28,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 903 transitions. [2024-11-24 00:45:28,789 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 903 transitions. Word has length 61 [2024-11-24 00:45:28,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:28,790 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 903 transitions. [2024-11-24 00:45:28,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:28,790 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 903 transitions. [2024-11-24 00:45:28,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:45:28,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:28,794 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:28,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:45:28,795 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:28,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:28,795 INFO L85 PathProgramCache]: Analyzing trace with hash 600277418, now seen corresponding path program 1 times [2024-11-24 00:45:28,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:28,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018880779] [2024-11-24 00:45:28,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:28,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:28,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:29,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:29,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:29,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018880779] [2024-11-24 00:45:29,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018880779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:29,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:29,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:45:29,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034540318] [2024-11-24 00:45:29,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:29,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:45:29,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:29,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:45:29,189 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:29,189 INFO L87 Difference]: Start difference. First operand 541 states and 903 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-24 00:45:29,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:29,379 INFO L93 Difference]: Finished difference Result 1030 states and 1720 transitions. [2024-11-24 00:45:29,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:45:29,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 62 [2024-11-24 00:45:29,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:29,388 INFO L225 Difference]: With dead ends: 1030 [2024-11-24 00:45:29,388 INFO L226 Difference]: Without dead ends: 556 [2024-11-24 00:45:29,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:45:29,393 INFO L435 NwaCegarLoop]: 893 mSDtfsCounter, 91 mSDsluCounter, 4384 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5277 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:29,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5277 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:45:29,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-24 00:45:29,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 554. [2024-11-24 00:45:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 438 states have (on average 1.6917808219178083) internal successors, (741), 461 states have internal predecessors, (741), 92 states have call successors, (92), 22 states have call predecessors, (92), 23 states have return successors, (89), 84 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-24 00:45:29,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 922 transitions. [2024-11-24 00:45:29,448 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 922 transitions. Word has length 62 [2024-11-24 00:45:29,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:29,449 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 922 transitions. [2024-11-24 00:45:29,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-24 00:45:29,449 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 922 transitions. [2024-11-24 00:45:29,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-24 00:45:29,451 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:29,451 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:29,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:45:29,452 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:29,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:29,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1100463061, now seen corresponding path program 1 times [2024-11-24 00:45:29,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:29,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682267503] [2024-11-24 00:45:29,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:29,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:29,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:29,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:29,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682267503] [2024-11-24 00:45:29,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682267503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:29,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:29,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:29,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13671401] [2024-11-24 00:45:29,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:29,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:29,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:29,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:29,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:29,663 INFO L87 Difference]: Start difference. First operand 554 states and 922 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:29,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:29,771 INFO L93 Difference]: Finished difference Result 1082 states and 1814 transitions. [2024-11-24 00:45:29,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:29,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 62 [2024-11-24 00:45:29,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:29,782 INFO L225 Difference]: With dead ends: 1082 [2024-11-24 00:45:29,782 INFO L226 Difference]: Without dead ends: 535 [2024-11-24 00:45:29,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:29,788 INFO L435 NwaCegarLoop]: 897 mSDtfsCounter, 0 mSDsluCounter, 1789 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:29,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2686 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:29,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-24 00:45:29,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2024-11-24 00:45:29,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 422 states have (on average 1.6872037914691944) internal successors, (712), 443 states have internal predecessors, (712), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:29,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 889 transitions. [2024-11-24 00:45:29,828 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 889 transitions. Word has length 62 [2024-11-24 00:45:29,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:29,828 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 889 transitions. [2024-11-24 00:45:29,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:29,832 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 889 transitions. [2024-11-24 00:45:29,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-24 00:45:29,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:29,837 INFO L218 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] [2024-11-24 00:45:29,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:45:29,838 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:29,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:29,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1940863992, now seen corresponding path program 1 times [2024-11-24 00:45:29,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:29,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504571811] [2024-11-24 00:45:29,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:29,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:30,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:30,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:30,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504571811] [2024-11-24 00:45:30,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504571811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:30,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:30,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:30,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086118572] [2024-11-24 00:45:30,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:30,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:30,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:30,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:30,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:30,158 INFO L87 Difference]: Start difference. First operand 535 states and 889 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:30,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:30,554 INFO L93 Difference]: Finished difference Result 1027 states and 1712 transitions. [2024-11-24 00:45:30,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:45:30,555 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2024-11-24 00:45:30,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:30,565 INFO L225 Difference]: With dead ends: 1027 [2024-11-24 00:45:30,566 INFO L226 Difference]: Without dead ends: 544 [2024-11-24 00:45:30,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:30,571 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 55 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4201 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:30,571 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4201 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:45:30,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-24 00:45:30,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 535. [2024-11-24 00:45:30,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 422 states have (on average 1.6777251184834123) internal successors, (708), 443 states have internal predecessors, (708), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:30,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 885 transitions. [2024-11-24 00:45:30,622 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 885 transitions. Word has length 63 [2024-11-24 00:45:30,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:30,623 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 885 transitions. [2024-11-24 00:45:30,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:30,623 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 885 transitions. [2024-11-24 00:45:30,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-24 00:45:30,626 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:30,627 INFO L218 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] [2024-11-24 00:45:30,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:45:30,627 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:30,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:30,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1969347815, now seen corresponding path program 1 times [2024-11-24 00:45:30,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:30,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726417512] [2024-11-24 00:45:30,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:30,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:30,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:30,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:30,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726417512] [2024-11-24 00:45:30,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726417512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:30,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:30,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:30,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178007721] [2024-11-24 00:45:30,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:30,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:30,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:30,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:30,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:30,899 INFO L87 Difference]: Start difference. First operand 535 states and 885 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:31,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:31,221 INFO L93 Difference]: Finished difference Result 1027 states and 1708 transitions. [2024-11-24 00:45:31,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:45:31,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 64 [2024-11-24 00:45:31,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:31,228 INFO L225 Difference]: With dead ends: 1027 [2024-11-24 00:45:31,229 INFO L226 Difference]: Without dead ends: 544 [2024-11-24 00:45:31,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:31,234 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 54 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4201 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:31,234 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4201 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:45:31,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-24 00:45:31,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 535. [2024-11-24 00:45:31,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 422 states have (on average 1.6682464454976302) internal successors, (704), 443 states have internal predecessors, (704), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:31,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 881 transitions. [2024-11-24 00:45:31,271 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 881 transitions. Word has length 64 [2024-11-24 00:45:31,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:31,271 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 881 transitions. [2024-11-24 00:45:31,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:31,272 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 881 transitions. [2024-11-24 00:45:31,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-24 00:45:31,276 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:31,276 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:31,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:45:31,276 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:31,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:31,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1868535565, now seen corresponding path program 1 times [2024-11-24 00:45:31,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:31,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274600134] [2024-11-24 00:45:31,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:31,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:31,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:31,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:31,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:31,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274600134] [2024-11-24 00:45:31,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274600134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:31,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:31,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:31,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271146656] [2024-11-24 00:45:31,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:31,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:31,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:31,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:31,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:31,513 INFO L87 Difference]: Start difference. First operand 535 states and 881 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:31,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:31,820 INFO L93 Difference]: Finished difference Result 1027 states and 1704 transitions. [2024-11-24 00:45:31,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:45:31,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-11-24 00:45:31,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:31,847 INFO L225 Difference]: With dead ends: 1027 [2024-11-24 00:45:31,848 INFO L226 Difference]: Without dead ends: 544 [2024-11-24 00:45:31,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:31,852 INFO L435 NwaCegarLoop]: 845 mSDtfsCounter, 53 mSDsluCounter, 3338 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4183 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:31,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4183 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:45:31,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-11-24 00:45:31,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 535. [2024-11-24 00:45:31,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 422 states have (on average 1.6587677725118484) internal successors, (700), 443 states have internal predecessors, (700), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:31,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 877 transitions. [2024-11-24 00:45:31,884 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 877 transitions. Word has length 65 [2024-11-24 00:45:31,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:31,885 INFO L471 AbstractCegarLoop]: Abstraction has 535 states and 877 transitions. [2024-11-24 00:45:31,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:31,885 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 877 transitions. [2024-11-24 00:45:31,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-24 00:45:31,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:31,887 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:31,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:45:31,887 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:31,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:31,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1184088973, now seen corresponding path program 1 times [2024-11-24 00:45:31,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:31,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26922932] [2024-11-24 00:45:31,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:31,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:31,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:32,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:32,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:32,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26922932] [2024-11-24 00:45:32,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26922932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:32,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:32,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:45:32,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556723191] [2024-11-24 00:45:32,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:32,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:45:32,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:32,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:45:32,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:32,117 INFO L87 Difference]: Start difference. First operand 535 states and 877 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-24 00:45:32,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:32,249 INFO L93 Difference]: Finished difference Result 1018 states and 1686 transitions. [2024-11-24 00:45:32,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:45:32,249 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 65 [2024-11-24 00:45:32,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:32,259 INFO L225 Difference]: With dead ends: 1018 [2024-11-24 00:45:32,259 INFO L226 Difference]: Without dead ends: 514 [2024-11-24 00:45:32,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:45:32,263 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 84 mSDsluCounter, 4257 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5123 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:32,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5123 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:32,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-24 00:45:32,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-11-24 00:45:32,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 401 states have (on average 1.660847880299252) internal successors, (666), 422 states have internal predecessors, (666), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:32,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 843 transitions. [2024-11-24 00:45:32,297 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 843 transitions. Word has length 65 [2024-11-24 00:45:32,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:32,297 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 843 transitions. [2024-11-24 00:45:32,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-24 00:45:32,298 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 843 transitions. [2024-11-24 00:45:32,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-24 00:45:32,300 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:32,300 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:32,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:45:32,301 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:32,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:32,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1009750654, now seen corresponding path program 1 times [2024-11-24 00:45:32,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:32,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827503189] [2024-11-24 00:45:32,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:32,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:32,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:32,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:32,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827503189] [2024-11-24 00:45:32,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827503189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:32,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:32,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:32,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054221877] [2024-11-24 00:45:32,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:32,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:32,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:32,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:32,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:32,497 INFO L87 Difference]: Start difference. First operand 514 states and 843 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:32,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:32,644 INFO L93 Difference]: Finished difference Result 997 states and 1652 transitions. [2024-11-24 00:45:32,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:45:32,645 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 66 [2024-11-24 00:45:32,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:32,652 INFO L225 Difference]: With dead ends: 997 [2024-11-24 00:45:32,652 INFO L226 Difference]: Without dead ends: 514 [2024-11-24 00:45:32,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:32,656 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 17 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4121 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:32,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4121 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:45:32,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-24 00:45:32,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-11-24 00:45:32,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 401 states have (on average 1.658354114713217) internal successors, (665), 422 states have internal predecessors, (665), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:32,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 842 transitions. [2024-11-24 00:45:32,689 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 842 transitions. Word has length 66 [2024-11-24 00:45:32,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:32,690 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 842 transitions. [2024-11-24 00:45:32,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 842 transitions. [2024-11-24 00:45:32,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-24 00:45:32,693 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:32,693 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:32,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:45:32,693 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:32,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:32,694 INFO L85 PathProgramCache]: Analyzing trace with hash -583136786, now seen corresponding path program 1 times [2024-11-24 00:45:32,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:32,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166110902] [2024-11-24 00:45:32,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:32,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:32,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:32,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:32,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166110902] [2024-11-24 00:45:32,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166110902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:32,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:32,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:32,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265905331] [2024-11-24 00:45:32,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:32,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:32,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:32,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:32,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:32,915 INFO L87 Difference]: Start difference. First operand 514 states and 842 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:33,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:33,056 INFO L93 Difference]: Finished difference Result 997 states and 1651 transitions. [2024-11-24 00:45:33,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:45:33,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 67 [2024-11-24 00:45:33,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:33,066 INFO L225 Difference]: With dead ends: 997 [2024-11-24 00:45:33,066 INFO L226 Difference]: Without dead ends: 514 [2024-11-24 00:45:33,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:33,071 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 16 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4121 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:33,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4121 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:45:33,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-24 00:45:33,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-11-24 00:45:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 401 states have (on average 1.655860349127182) internal successors, (664), 422 states have internal predecessors, (664), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:33,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 841 transitions. [2024-11-24 00:45:33,110 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 841 transitions. Word has length 67 [2024-11-24 00:45:33,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:33,111 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 841 transitions. [2024-11-24 00:45:33,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (7), 2 states have call predecessors, (7), 4 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:33,112 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 841 transitions. [2024-11-24 00:45:33,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 00:45:33,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:33,114 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:33,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:45:33,114 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:33,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:33,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1698282661, now seen corresponding path program 1 times [2024-11-24 00:45:33,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:33,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531778332] [2024-11-24 00:45:33,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:33,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:33,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:33,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:33,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531778332] [2024-11-24 00:45:33,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531778332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:33,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:33,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:33,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2363406] [2024-11-24 00:45:33,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:33,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:33,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:33,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:33,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:33,285 INFO L87 Difference]: Start difference. First operand 514 states and 841 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:33,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:33,350 INFO L93 Difference]: Finished difference Result 997 states and 1650 transitions. [2024-11-24 00:45:33,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:33,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2024-11-24 00:45:33,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:33,358 INFO L225 Difference]: With dead ends: 997 [2024-11-24 00:45:33,359 INFO L226 Difference]: Without dead ends: 514 [2024-11-24 00:45:33,362 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:33,363 INFO L435 NwaCegarLoop]: 834 mSDtfsCounter, 9 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2496 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:33,363 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2496 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:33,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-24 00:45:33,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-11-24 00:45:33,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 401 states have (on average 1.653366583541147) internal successors, (663), 422 states have internal predecessors, (663), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:33,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 840 transitions. [2024-11-24 00:45:33,396 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 840 transitions. Word has length 68 [2024-11-24 00:45:33,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:33,397 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 840 transitions. [2024-11-24 00:45:33,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:33,397 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 840 transitions. [2024-11-24 00:45:33,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-24 00:45:33,399 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:33,399 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:33,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:45:33,399 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:33,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:33,400 INFO L85 PathProgramCache]: Analyzing trace with hash -668923363, now seen corresponding path program 1 times [2024-11-24 00:45:33,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:33,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413958284] [2024-11-24 00:45:33,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:33,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:33,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:33,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:33,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413958284] [2024-11-24 00:45:33,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413958284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:33,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:33,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:45:33,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770749475] [2024-11-24 00:45:33,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:33,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:45:33,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:33,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:45:33,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:33,553 INFO L87 Difference]: Start difference. First operand 514 states and 840 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:33,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:33,623 INFO L93 Difference]: Finished difference Result 991 states and 1638 transitions. [2024-11-24 00:45:33,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:45:33,624 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 68 [2024-11-24 00:45:33,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:33,631 INFO L225 Difference]: With dead ends: 991 [2024-11-24 00:45:33,631 INFO L226 Difference]: Without dead ends: 514 [2024-11-24 00:45:33,635 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:45:33,635 INFO L435 NwaCegarLoop]: 828 mSDtfsCounter, 4 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:33,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2475 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:33,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-24 00:45:33,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2024-11-24 00:45:33,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 401 states have (on average 1.6508728179551122) internal successors, (662), 422 states have internal predecessors, (662), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 83 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:45:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 839 transitions. [2024-11-24 00:45:33,665 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 839 transitions. Word has length 68 [2024-11-24 00:45:33,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:33,666 INFO L471 AbstractCegarLoop]: Abstraction has 514 states and 839 transitions. [2024-11-24 00:45:33,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 00:45:33,666 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 839 transitions. [2024-11-24 00:45:33,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-24 00:45:33,668 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:33,668 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:33,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:45:33,668 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:33,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:33,669 INFO L85 PathProgramCache]: Analyzing trace with hash 121354265, now seen corresponding path program 1 times [2024-11-24 00:45:33,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:33,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035992619] [2024-11-24 00:45:33,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:33,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:33,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:33,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:33,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035992619] [2024-11-24 00:45:33,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035992619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:33,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:33,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:33,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137305704] [2024-11-24 00:45:33,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:33,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:33,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:33,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:33,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:33,988 INFO L87 Difference]: Start difference. First operand 514 states and 839 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-24 00:45:37,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:37,771 INFO L93 Difference]: Finished difference Result 1586 states and 2654 transitions. [2024-11-24 00:45:37,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:45:37,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) Word has length 69 [2024-11-24 00:45:37,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:37,786 INFO L225 Difference]: With dead ends: 1586 [2024-11-24 00:45:37,787 INFO L226 Difference]: Without dead ends: 1117 [2024-11-24 00:45:37,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:45:37,791 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 1898 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 408 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 1410 SdHoareTripleChecker+Invalid, 2225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 408 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:37,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1958 Valid, 1410 Invalid, 2225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [408 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-24 00:45:37,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2024-11-24 00:45:37,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 995. [2024-11-24 00:45:37,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 783 states have (on average 1.6743295019157087) internal successors, (1311), 813 states have internal predecessors, (1311), 174 states have call successors, (174), 36 states have call predecessors, (174), 37 states have return successors, (176), 158 states have call predecessors, (176), 169 states have call successors, (176) [2024-11-24 00:45:37,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1661 transitions. [2024-11-24 00:45:37,900 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1661 transitions. Word has length 69 [2024-11-24 00:45:37,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:37,901 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1661 transitions. [2024-11-24 00:45:37,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 5 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-24 00:45:37,903 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1661 transitions. [2024-11-24 00:45:37,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:45:37,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:37,909 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:37,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 00:45:37,910 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:37,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:37,911 INFO L85 PathProgramCache]: Analyzing trace with hash -521853870, now seen corresponding path program 1 times [2024-11-24 00:45:37,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:37,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155064808] [2024-11-24 00:45:37,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:37,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:38,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:38,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:38,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155064808] [2024-11-24 00:45:38,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155064808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:38,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:38,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 00:45:38,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662678262] [2024-11-24 00:45:38,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:38,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 00:45:38,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:38,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 00:45:38,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:45:38,571 INFO L87 Difference]: Start difference. First operand 995 states and 1661 transitions. Second operand has 14 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 7 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-24 00:45:48,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:48,530 INFO L93 Difference]: Finished difference Result 3592 states and 6032 transitions. [2024-11-24 00:45:48,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-24 00:45:48,531 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 7 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 97 [2024-11-24 00:45:48,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:48,554 INFO L225 Difference]: With dead ends: 3592 [2024-11-24 00:45:48,555 INFO L226 Difference]: Without dead ends: 2642 [2024-11-24 00:45:48,564 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=157, Invalid=899, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 00:45:48,565 INFO L435 NwaCegarLoop]: 757 mSDtfsCounter, 2686 mSDsluCounter, 6469 mSDsCounter, 0 mSdLazyCounter, 11610 mSolverCounterSat, 826 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2760 SdHoareTripleChecker+Valid, 7226 SdHoareTripleChecker+Invalid, 12436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 11610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:48,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2760 Valid, 7226 Invalid, 12436 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [826 Valid, 11610 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2024-11-24 00:45:48,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2024-11-24 00:45:48,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 2548. [2024-11-24 00:45:48,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 1940 states have (on average 1.6448453608247422) internal successors, (3191), 2016 states have internal predecessors, (3191), 513 states have call successors, (513), 77 states have call predecessors, (513), 94 states have return successors, (546), 487 states have call predecessors, (546), 508 states have call successors, (546) [2024-11-24 00:45:48,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 4250 transitions. [2024-11-24 00:45:48,862 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 4250 transitions. Word has length 97 [2024-11-24 00:45:48,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:48,863 INFO L471 AbstractCegarLoop]: Abstraction has 2548 states and 4250 transitions. [2024-11-24 00:45:48,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 6.333333333333333) internal successors, (76), 11 states have internal predecessors, (76), 7 states have call successors, (11), 3 states have call predecessors, (11), 5 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-24 00:45:48,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 4250 transitions. [2024-11-24 00:45:48,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 00:45:48,868 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:48,869 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:48,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 00:45:48,870 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:48,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:48,871 INFO L85 PathProgramCache]: Analyzing trace with hash 74390232, now seen corresponding path program 1 times [2024-11-24 00:45:48,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:48,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296889608] [2024-11-24 00:45:48,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:48,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:48,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:49,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:49,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:49,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296889608] [2024-11-24 00:45:49,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296889608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:49,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:49,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:45:49,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61608667] [2024-11-24 00:45:49,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:49,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:45:49,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:49,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:45:49,421 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:45:49,422 INFO L87 Difference]: Start difference. First operand 2548 states and 4250 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 00:45:52,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:52,063 INFO L93 Difference]: Finished difference Result 5079 states and 8621 transitions. [2024-11-24 00:45:52,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:45:52,064 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 98 [2024-11-24 00:45:52,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:52,089 INFO L225 Difference]: With dead ends: 5079 [2024-11-24 00:45:52,090 INFO L226 Difference]: Without dead ends: 2576 [2024-11-24 00:45:52,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:45:52,109 INFO L435 NwaCegarLoop]: 384 mSDtfsCounter, 1286 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 2591 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 2963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 2591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:52,109 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1286 Valid, 1622 Invalid, 2963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 2591 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 00:45:52,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2024-11-24 00:45:52,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2572. [2024-11-24 00:45:52,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2572 states, 1958 states have (on average 1.6389172625127681) internal successors, (3209), 2034 states have internal predecessors, (3209), 513 states have call successors, (513), 77 states have call predecessors, (513), 100 states have return successors, (612), 493 states have call predecessors, (612), 508 states have call successors, (612) [2024-11-24 00:45:52,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2572 states to 2572 states and 4334 transitions. [2024-11-24 00:45:52,395 INFO L78 Accepts]: Start accepts. Automaton has 2572 states and 4334 transitions. Word has length 98 [2024-11-24 00:45:52,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:52,398 INFO L471 AbstractCegarLoop]: Abstraction has 2572 states and 4334 transitions. [2024-11-24 00:45:52,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 7 states have internal predecessors, (77), 4 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-24 00:45:52,399 INFO L276 IsEmpty]: Start isEmpty. Operand 2572 states and 4334 transitions. [2024-11-24 00:45:52,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:45:52,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:52,404 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:52,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 00:45:52,404 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:52,405 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:52,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1880489071, now seen corresponding path program 1 times [2024-11-24 00:45:52,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:52,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889942994] [2024-11-24 00:45:52,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:52,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:52,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:52,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:52,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889942994] [2024-11-24 00:45:52,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889942994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:52,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:52,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:45:52,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023176453] [2024-11-24 00:45:52,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:52,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:45:52,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:52,673 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:45:52,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:52,674 INFO L87 Difference]: Start difference. First operand 2572 states and 4334 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 00:45:57,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:57,609 INFO L93 Difference]: Finished difference Result 8227 states and 14145 transitions. [2024-11-24 00:45:57,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:45:57,610 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 99 [2024-11-24 00:45:57,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:57,666 INFO L225 Difference]: With dead ends: 8227 [2024-11-24 00:45:57,667 INFO L226 Difference]: Without dead ends: 5700 [2024-11-24 00:45:57,727 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:45:57,728 INFO L435 NwaCegarLoop]: 617 mSDtfsCounter, 2697 mSDsluCounter, 1937 mSDsCounter, 0 mSdLazyCounter, 4284 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 2554 SdHoareTripleChecker+Invalid, 4970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 4284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:57,728 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2766 Valid, 2554 Invalid, 4970 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [686 Valid, 4284 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-24 00:45:57,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5700 states. [2024-11-24 00:45:58,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5700 to 5469. [2024-11-24 00:45:58,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5469 states, 4158 states have (on average 1.6284271284271283) internal successors, (6771), 4339 states have internal predecessors, (6771), 1088 states have call successors, (1088), 190 states have call predecessors, (1088), 222 states have return successors, (1237), 1016 states have call predecessors, (1237), 1083 states have call successors, (1237) [2024-11-24 00:45:58,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5469 states to 5469 states and 9096 transitions. [2024-11-24 00:45:58,313 INFO L78 Accepts]: Start accepts. Automaton has 5469 states and 9096 transitions. Word has length 99 [2024-11-24 00:45:58,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:58,313 INFO L471 AbstractCegarLoop]: Abstraction has 5469 states and 9096 transitions. [2024-11-24 00:45:58,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 00:45:58,318 INFO L276 IsEmpty]: Start isEmpty. Operand 5469 states and 9096 transitions. [2024-11-24 00:45:58,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:45:58,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:58,321 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:58,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 00:45:58,326 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:58,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:58,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1456719465, now seen corresponding path program 1 times [2024-11-24 00:45:58,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:58,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71885113] [2024-11-24 00:45:58,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:58,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:58,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:45:58,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:58,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71885113] [2024-11-24 00:45:58,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71885113] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:58,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:58,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:45:58,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448290898] [2024-11-24 00:45:58,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:58,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:45:58,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:58,635 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:45:58,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:58,636 INFO L87 Difference]: Start difference. First operand 5469 states and 9096 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 00:46:03,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:03,250 INFO L93 Difference]: Finished difference Result 16548 states and 27991 transitions. [2024-11-24 00:46:03,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 00:46:03,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) Word has length 101 [2024-11-24 00:46:03,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:03,351 INFO L225 Difference]: With dead ends: 16548 [2024-11-24 00:46:03,351 INFO L226 Difference]: Without dead ends: 11833 [2024-11-24 00:46:03,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-24 00:46:03,382 INFO L435 NwaCegarLoop]: 358 mSDtfsCounter, 2358 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 3567 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 1753 SdHoareTripleChecker+Invalid, 4069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 3567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:03,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 1753 Invalid, 4069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 3567 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-24 00:46:03,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11833 states. [2024-11-24 00:46:04,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11833 to 11199. [2024-11-24 00:46:04,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11199 states, 8503 states have (on average 1.629424908855698) internal successors, (13855), 8903 states have internal predecessors, (13855), 2182 states have call successors, (2182), 372 states have call predecessors, (2182), 513 states have return successors, (2752), 2066 states have call predecessors, (2752), 2177 states have call successors, (2752) [2024-11-24 00:46:04,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11199 states to 11199 states and 18789 transitions. [2024-11-24 00:46:04,614 INFO L78 Accepts]: Start accepts. Automaton has 11199 states and 18789 transitions. Word has length 101 [2024-11-24 00:46:04,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:04,616 INFO L471 AbstractCegarLoop]: Abstraction has 11199 states and 18789 transitions. [2024-11-24 00:46:04,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 5 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 5 states have call predecessors, (10), 4 states have call successors, (10) [2024-11-24 00:46:04,618 INFO L276 IsEmpty]: Start isEmpty. Operand 11199 states and 18789 transitions. [2024-11-24 00:46:04,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:46:04,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:04,622 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:04,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 00:46:04,623 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:04,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:04,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2053168730, now seen corresponding path program 1 times [2024-11-24 00:46:04,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:04,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665020754] [2024-11-24 00:46:04,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:04,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:04,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:46:04,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:04,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665020754] [2024-11-24 00:46:04,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665020754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:04,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:04,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:46:04,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485927512] [2024-11-24 00:46:04,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:04,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:46:04,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:04,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:46:04,843 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:46:04,843 INFO L87 Difference]: Start difference. First operand 11199 states and 18789 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:46:06,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:06,040 INFO L93 Difference]: Finished difference Result 21692 states and 36555 transitions. [2024-11-24 00:46:06,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:46:06,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-11-24 00:46:06,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:06,158 INFO L225 Difference]: With dead ends: 21692 [2024-11-24 00:46:06,158 INFO L226 Difference]: Without dead ends: 11357 [2024-11-24 00:46:06,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:46:06,230 INFO L435 NwaCegarLoop]: 837 mSDtfsCounter, 0 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3318 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:06,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3318 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:46:06,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11357 states. [2024-11-24 00:46:07,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11357 to 11321. [2024-11-24 00:46:07,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11321 states, 8599 states have (on average 1.6217001976974066) internal successors, (13945), 8993 states have internal predecessors, (13945), 2176 states have call successors, (2176), 372 states have call predecessors, (2176), 545 states have return successors, (2840), 2098 states have call predecessors, (2840), 2171 states have call successors, (2840) [2024-11-24 00:46:07,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11321 states to 11321 states and 18961 transitions. [2024-11-24 00:46:07,488 INFO L78 Accepts]: Start accepts. Automaton has 11321 states and 18961 transitions. Word has length 106 [2024-11-24 00:46:07,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:07,489 INFO L471 AbstractCegarLoop]: Abstraction has 11321 states and 18961 transitions. [2024-11-24 00:46:07,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-24 00:46:07,489 INFO L276 IsEmpty]: Start isEmpty. Operand 11321 states and 18961 transitions. [2024-11-24 00:46:07,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 00:46:07,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:07,494 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:07,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:46:07,494 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:07,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:07,495 INFO L85 PathProgramCache]: Analyzing trace with hash -885458413, now seen corresponding path program 1 times [2024-11-24 00:46:07,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:07,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370199733] [2024-11-24 00:46:07,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:07,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:07,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:07,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:46:07,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:07,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370199733] [2024-11-24 00:46:07,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370199733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:07,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:07,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:46:07,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360369410] [2024-11-24 00:46:07,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:07,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:46:07,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:07,816 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:46:07,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:46:07,817 INFO L87 Difference]: Start difference. First operand 11321 states and 18961 transitions. Second operand has 9 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-24 00:46:08,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:08,936 INFO L93 Difference]: Finished difference Result 23756 states and 40665 transitions. [2024-11-24 00:46:08,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:46:08,937 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 113 [2024-11-24 00:46:08,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:09,039 INFO L225 Difference]: With dead ends: 23756 [2024-11-24 00:46:09,039 INFO L226 Difference]: Without dead ends: 11593 [2024-11-24 00:46:09,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:46:09,102 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 235 mSDsluCounter, 5879 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 6761 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:09,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 6761 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:46:09,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11593 states. [2024-11-24 00:46:10,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11593 to 11321. [2024-11-24 00:46:10,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11321 states, 8599 states have (on average 1.591464123735318) internal successors, (13685), 8993 states have internal predecessors, (13685), 2176 states have call successors, (2176), 372 states have call predecessors, (2176), 545 states have return successors, (2840), 2098 states have call predecessors, (2840), 2171 states have call successors, (2840) [2024-11-24 00:46:10,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11321 states to 11321 states and 18701 transitions. [2024-11-24 00:46:10,115 INFO L78 Accepts]: Start accepts. Automaton has 11321 states and 18701 transitions. Word has length 113 [2024-11-24 00:46:10,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:10,116 INFO L471 AbstractCegarLoop]: Abstraction has 11321 states and 18701 transitions. [2024-11-24 00:46:10,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 4 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2024-11-24 00:46:10,116 INFO L276 IsEmpty]: Start isEmpty. Operand 11321 states and 18701 transitions. [2024-11-24 00:46:10,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:46:10,121 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:10,121 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:10,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:46:10,121 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:10,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:10,122 INFO L85 PathProgramCache]: Analyzing trace with hash 169242431, now seen corresponding path program 1 times [2024-11-24 00:46:10,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:10,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67228519] [2024-11-24 00:46:10,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:10,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:10,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:10,429 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-24 00:46:10,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:10,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67228519] [2024-11-24 00:46:10,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67228519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:10,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:10,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:46:10,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357717325] [2024-11-24 00:46:10,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:10,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:46:10,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:10,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:46:10,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:46:10,434 INFO L87 Difference]: Start difference. First operand 11321 states and 18701 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:46:15,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:15,089 INFO L93 Difference]: Finished difference Result 23247 states and 38602 transitions. [2024-11-24 00:46:15,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:46:15,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 118 [2024-11-24 00:46:15,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:15,218 INFO L225 Difference]: With dead ends: 23247 [2024-11-24 00:46:15,219 INFO L226 Difference]: Without dead ends: 12801 [2024-11-24 00:46:15,295 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-24 00:46:15,296 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 2084 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 3071 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 3555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 3071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:15,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 1691 Invalid, 3555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 3071 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 00:46:15,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12801 states. [2024-11-24 00:46:16,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12801 to 11887. [2024-11-24 00:46:16,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11887 states, 9021 states have (on average 1.578206407271921) internal successors, (14237), 9451 states have internal predecessors, (14237), 2231 states have call successors, (2231), 425 states have call predecessors, (2231), 634 states have return successors, (3043), 2154 states have call predecessors, (3043), 2226 states have call successors, (3043) [2024-11-24 00:46:16,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11887 states to 11887 states and 19511 transitions. [2024-11-24 00:46:16,805 INFO L78 Accepts]: Start accepts. Automaton has 11887 states and 19511 transitions. Word has length 118 [2024-11-24 00:46:16,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:16,806 INFO L471 AbstractCegarLoop]: Abstraction has 11887 states and 19511 transitions. [2024-11-24 00:46:16,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 4 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-24 00:46:16,806 INFO L276 IsEmpty]: Start isEmpty. Operand 11887 states and 19511 transitions. [2024-11-24 00:46:16,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-24 00:46:16,811 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:16,811 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:16,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:46:16,812 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:16,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:16,813 INFO L85 PathProgramCache]: Analyzing trace with hash 548183034, now seen corresponding path program 1 times [2024-11-24 00:46:16,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:16,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438260797] [2024-11-24 00:46:16,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:16,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 00:46:17,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:17,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438260797] [2024-11-24 00:46:17,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438260797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:17,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:17,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 00:46:17,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467837865] [2024-11-24 00:46:17,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:17,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 00:46:17,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:17,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 00:46:17,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:46:17,320 INFO L87 Difference]: Start difference. First operand 11887 states and 19511 transitions. Second operand has 13 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 7 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 00:46:23,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:23,234 INFO L93 Difference]: Finished difference Result 27489 states and 45002 transitions. [2024-11-24 00:46:23,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-24 00:46:23,235 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 7 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 125 [2024-11-24 00:46:23,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:23,344 INFO L225 Difference]: With dead ends: 27489 [2024-11-24 00:46:23,345 INFO L226 Difference]: Without dead ends: 16332 [2024-11-24 00:46:23,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=586, Unknown=0, NotChecked=0, Total=702 [2024-11-24 00:46:23,398 INFO L435 NwaCegarLoop]: 414 mSDtfsCounter, 2235 mSDsluCounter, 3818 mSDsCounter, 0 mSdLazyCounter, 8101 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2320 SdHoareTripleChecker+Valid, 4232 SdHoareTripleChecker+Invalid, 8585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 8101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:23,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2320 Valid, 4232 Invalid, 8585 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [484 Valid, 8101 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-24 00:46:23,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16332 states. [2024-11-24 00:46:24,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16332 to 14803. [2024-11-24 00:46:24,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14803 states, 11325 states have (on average 1.5575275938189845) internal successors, (17639), 11869 states have internal predecessors, (17639), 2597 states have call successors, (2597), 599 states have call predecessors, (2597), 880 states have return successors, (3571), 2478 states have call predecessors, (3571), 2592 states have call successors, (3571) [2024-11-24 00:46:24,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14803 states to 14803 states and 23807 transitions. [2024-11-24 00:46:24,448 INFO L78 Accepts]: Start accepts. Automaton has 14803 states and 23807 transitions. Word has length 125 [2024-11-24 00:46:24,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:24,448 INFO L471 AbstractCegarLoop]: Abstraction has 14803 states and 23807 transitions. [2024-11-24 00:46:24,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.363636363636363) internal successors, (92), 11 states have internal predecessors, (92), 7 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-24 00:46:24,449 INFO L276 IsEmpty]: Start isEmpty. Operand 14803 states and 23807 transitions. [2024-11-24 00:46:24,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-24 00:46:24,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:24,453 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:24,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:46:24,453 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:24,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:24,454 INFO L85 PathProgramCache]: Analyzing trace with hash 292369734, now seen corresponding path program 1 times [2024-11-24 00:46:24,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:24,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140254057] [2024-11-24 00:46:24,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:24,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:24,672 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 00:46:24,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:24,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140254057] [2024-11-24 00:46:24,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140254057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:24,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:24,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:46:24,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641973983] [2024-11-24 00:46:24,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:24,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:46:24,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:24,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:46:24,675 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:46:24,675 INFO L87 Difference]: Start difference. First operand 14803 states and 23807 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:46:26,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:26,049 INFO L93 Difference]: Finished difference Result 14952 states and 24069 transitions. [2024-11-24 00:46:26,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:46:26,049 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-11-24 00:46:26,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:26,149 INFO L225 Difference]: With dead ends: 14952 [2024-11-24 00:46:26,150 INFO L226 Difference]: Without dead ends: 14937 [2024-11-24 00:46:26,161 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:46:26,162 INFO L435 NwaCegarLoop]: 819 mSDtfsCounter, 900 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:26,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 2935 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 00:46:26,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14937 states. [2024-11-24 00:46:27,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14937 to 14811. [2024-11-24 00:46:27,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14811 states, 11333 states have (on average 1.557134033353922) internal successors, (17647), 11877 states have internal predecessors, (17647), 2597 states have call successors, (2597), 599 states have call predecessors, (2597), 880 states have return successors, (3571), 2478 states have call predecessors, (3571), 2592 states have call successors, (3571) [2024-11-24 00:46:27,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14811 states to 14811 states and 23815 transitions. [2024-11-24 00:46:27,194 INFO L78 Accepts]: Start accepts. Automaton has 14811 states and 23815 transitions. Word has length 123 [2024-11-24 00:46:27,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:27,194 INFO L471 AbstractCegarLoop]: Abstraction has 14811 states and 23815 transitions. [2024-11-24 00:46:27,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:46:27,195 INFO L276 IsEmpty]: Start isEmpty. Operand 14811 states and 23815 transitions. [2024-11-24 00:46:27,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-24 00:46:27,199 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:27,200 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:27,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:46:27,201 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:27,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:27,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1950187670, now seen corresponding path program 1 times [2024-11-24 00:46:27,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:27,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584879239] [2024-11-24 00:46:27,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:27,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:27,667 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-24 00:46:27,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:27,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584879239] [2024-11-24 00:46:27,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584879239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:27,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:27,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 00:46:27,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845948708] [2024-11-24 00:46:27,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:27,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 00:46:27,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:27,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 00:46:27,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:46:27,671 INFO L87 Difference]: Start difference. First operand 14811 states and 23815 transitions. Second operand has 11 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-24 00:46:29,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:29,115 INFO L93 Difference]: Finished difference Result 15172 states and 24367 transitions. [2024-11-24 00:46:29,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:46:29,116 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 131 [2024-11-24 00:46:29,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:29,198 INFO L225 Difference]: With dead ends: 15172 [2024-11-24 00:46:29,198 INFO L226 Difference]: Without dead ends: 15157 [2024-11-24 00:46:29,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:46:29,212 INFO L435 NwaCegarLoop]: 820 mSDtfsCounter, 823 mSDsluCounter, 6483 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 7303 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:29,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 7303 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:46:29,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15157 states. [2024-11-24 00:46:30,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15157 to 15119. [2024-11-24 00:46:30,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15119 states, 11570 states have (on average 1.553932584269663) internal successors, (17979), 12114 states have internal predecessors, (17979), 2642 states have call successors, (2642), 625 states have call predecessors, (2642), 906 states have return successors, (3656), 2522 states have call predecessors, (3656), 2637 states have call successors, (3656) [2024-11-24 00:46:30,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15119 states to 15119 states and 24277 transitions. [2024-11-24 00:46:30,308 INFO L78 Accepts]: Start accepts. Automaton has 15119 states and 24277 transitions. Word has length 131 [2024-11-24 00:46:30,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:30,309 INFO L471 AbstractCegarLoop]: Abstraction has 15119 states and 24277 transitions. [2024-11-24 00:46:30,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 9.6) internal successors, (96), 9 states have internal predecessors, (96), 4 states have call successors, (16), 2 states have call predecessors, (16), 6 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-24 00:46:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 15119 states and 24277 transitions. [2024-11-24 00:46:30,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-24 00:46:30,314 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:30,314 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1] [2024-11-24 00:46:30,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 00:46:30,314 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:30,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:30,315 INFO L85 PathProgramCache]: Analyzing trace with hash 777835671, now seen corresponding path program 1 times [2024-11-24 00:46:30,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:30,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523762797] [2024-11-24 00:46:30,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:30,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:30,664 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 00:46:30,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:30,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523762797] [2024-11-24 00:46:30,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523762797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:30,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:30,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:46:30,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433342820] [2024-11-24 00:46:30,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:30,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:46:30,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:30,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:46:30,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:46:30,666 INFO L87 Difference]: Start difference. First operand 15119 states and 24277 transitions. Second operand has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-24 00:46:33,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:33,016 INFO L93 Difference]: Finished difference Result 30303 states and 48930 transitions. [2024-11-24 00:46:33,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:46:33,017 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 140 [2024-11-24 00:46:33,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:33,089 INFO L225 Difference]: With dead ends: 30303 [2024-11-24 00:46:33,089 INFO L226 Difference]: Without dead ends: 15241 [2024-11-24 00:46:33,136 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:46:33,136 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 1234 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 2598 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 1618 SdHoareTripleChecker+Invalid, 2933 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 2598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:33,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 1618 Invalid, 2933 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 2598 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 00:46:33,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15241 states. [2024-11-24 00:46:33,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15241 to 15119. [2024-11-24 00:46:34,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15119 states, 11570 states have (on average 1.5522904062229905) internal successors, (17960), 12114 states have internal predecessors, (17960), 2642 states have call successors, (2642), 625 states have call predecessors, (2642), 906 states have return successors, (3656), 2522 states have call predecessors, (3656), 2637 states have call successors, (3656) [2024-11-24 00:46:34,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15119 states to 15119 states and 24258 transitions. [2024-11-24 00:46:34,072 INFO L78 Accepts]: Start accepts. Automaton has 15119 states and 24258 transitions. Word has length 140 [2024-11-24 00:46:34,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:34,073 INFO L471 AbstractCegarLoop]: Abstraction has 15119 states and 24258 transitions. [2024-11-24 00:46:34,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.0) internal successors, (104), 7 states have internal predecessors, (104), 4 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-24 00:46:34,073 INFO L276 IsEmpty]: Start isEmpty. Operand 15119 states and 24258 transitions. [2024-11-24 00:46:34,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2024-11-24 00:46:34,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:34,077 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:34,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 00:46:34,077 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:34,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:34,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1579344438, now seen corresponding path program 1 times [2024-11-24 00:46:34,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:34,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816249272] [2024-11-24 00:46:34,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:34,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:34,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:34,284 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-24 00:46:34,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:34,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816249272] [2024-11-24 00:46:34,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816249272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:34,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:34,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:46:34,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742619917] [2024-11-24 00:46:34,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:34,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:46:34,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:34,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:46:34,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:46:34,287 INFO L87 Difference]: Start difference. First operand 15119 states and 24258 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-24 00:46:38,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:38,155 INFO L93 Difference]: Finished difference Result 44424 states and 72696 transitions. [2024-11-24 00:46:38,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:46:38,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 143 [2024-11-24 00:46:38,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:38,347 INFO L225 Difference]: With dead ends: 44424 [2024-11-24 00:46:38,347 INFO L226 Difference]: Without dead ends: 29326 [2024-11-24 00:46:38,422 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:46:38,422 INFO L435 NwaCegarLoop]: 487 mSDtfsCounter, 2166 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 2226 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 2713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 2226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:38,423 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 1425 Invalid, 2713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 2226 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-24 00:46:38,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29326 states. [2024-11-24 00:46:40,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29326 to 27745. [2024-11-24 00:46:40,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27745 states, 20746 states have (on average 1.5457919598958836) internal successors, (32069), 21891 states have internal predecessors, (32069), 5416 states have call successors, (5416), 1049 states have call predecessors, (5416), 1582 states have return successors, (7774), 5298 states have call predecessors, (7774), 5411 states have call successors, (7774) [2024-11-24 00:46:40,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27745 states to 27745 states and 45259 transitions. [2024-11-24 00:46:40,534 INFO L78 Accepts]: Start accepts. Automaton has 27745 states and 45259 transitions. Word has length 143 [2024-11-24 00:46:40,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:40,535 INFO L471 AbstractCegarLoop]: Abstraction has 27745 states and 45259 transitions. [2024-11-24 00:46:40,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-24 00:46:40,535 INFO L276 IsEmpty]: Start isEmpty. Operand 27745 states and 45259 transitions. [2024-11-24 00:46:40,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-24 00:46:40,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:40,538 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:40,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 00:46:40,538 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:40,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:40,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1722296758, now seen corresponding path program 1 times [2024-11-24 00:46:40,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:40,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882420229] [2024-11-24 00:46:40,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:40,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:40,725 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:46:40,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:40,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882420229] [2024-11-24 00:46:40,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882420229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:40,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:40,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:46:40,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906102739] [2024-11-24 00:46:40,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:40,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:46:40,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:40,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:46:40,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:46:40,727 INFO L87 Difference]: Start difference. First operand 27745 states and 45259 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 00:46:46,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:46,004 INFO L93 Difference]: Finished difference Result 82114 states and 138377 transitions. [2024-11-24 00:46:46,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:46:46,005 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 151 [2024-11-24 00:46:46,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:46,257 INFO L225 Difference]: With dead ends: 82114 [2024-11-24 00:46:46,257 INFO L226 Difference]: Without dead ends: 54414 [2024-11-24 00:46:46,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:46:46,347 INFO L435 NwaCegarLoop]: 410 mSDtfsCounter, 1839 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 1211 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1909 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 1588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:46,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1909 Valid, 945 Invalid, 1588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1211 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 00:46:46,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54414 states. [2024-11-24 00:46:50,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54414 to 52513. [2024-11-24 00:46:50,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52513 states, 38398 states have (on average 1.5408354601802177) internal successors, (59165), 40763 states have internal predecessors, (59165), 11236 states have call successors, (11236), 1808 states have call predecessors, (11236), 2878 states have return successors, (18240), 11189 states have call predecessors, (18240), 11231 states have call successors, (18240) [2024-11-24 00:46:50,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52513 states to 52513 states and 88641 transitions. [2024-11-24 00:46:50,719 INFO L78 Accepts]: Start accepts. Automaton has 52513 states and 88641 transitions. Word has length 151 [2024-11-24 00:46:50,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:50,719 INFO L471 AbstractCegarLoop]: Abstraction has 52513 states and 88641 transitions. [2024-11-24 00:46:50,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 00:46:50,719 INFO L276 IsEmpty]: Start isEmpty. Operand 52513 states and 88641 transitions. [2024-11-24 00:46:50,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-24 00:46:50,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:50,728 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:50,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-24 00:46:50,728 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:50,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:50,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1851462810, now seen corresponding path program 1 times [2024-11-24 00:46:50,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:46:50,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268694837] [2024-11-24 00:46:50,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:50,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:46:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:51,004 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:46:51,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:46:51,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268694837] [2024-11-24 00:46:51,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268694837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:51,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:51,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:46:51,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071085178] [2024-11-24 00:46:51,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:51,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:46:51,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:46:51,007 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:46:51,007 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:46:51,007 INFO L87 Difference]: Start difference. First operand 52513 states and 88641 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 00:47:01,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:47:01,131 INFO L93 Difference]: Finished difference Result 165784 states and 294784 transitions. [2024-11-24 00:47:01,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:47:01,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 152 [2024-11-24 00:47:01,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:47:01,882 INFO L225 Difference]: With dead ends: 165784 [2024-11-24 00:47:01,882 INFO L226 Difference]: Without dead ends: 113316 [2024-11-24 00:47:02,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:47:02,201 INFO L435 NwaCegarLoop]: 387 mSDtfsCounter, 1842 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:47:02,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 914 Invalid, 1577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-24 00:47:02,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113316 states. [2024-11-24 00:47:11,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113316 to 109553. [2024-11-24 00:47:11,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109553 states, 78090 states have (on average 1.5364195159431426) internal successors, (119979), 83416 states have internal predecessors, (119979), 25779 states have call successors, (25779), 3326 states have call predecessors, (25779), 5683 states have return successors, (49281), 26034 states have call predecessors, (49281), 25774 states have call successors, (49281) [2024-11-24 00:47:11,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109553 states to 109553 states and 195039 transitions. [2024-11-24 00:47:11,990 INFO L78 Accepts]: Start accepts. Automaton has 109553 states and 195039 transitions. Word has length 152 [2024-11-24 00:47:11,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:47:11,990 INFO L471 AbstractCegarLoop]: Abstraction has 109553 states and 195039 transitions. [2024-11-24 00:47:11,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-11-24 00:47:11,990 INFO L276 IsEmpty]: Start isEmpty. Operand 109553 states and 195039 transitions. [2024-11-24 00:47:12,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-24 00:47:12,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:47:12,450 INFO L218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:47:12,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 00:47:12,451 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:47:12,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:47:12,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1560647032, now seen corresponding path program 1 times [2024-11-24 00:47:12,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:47:12,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844223173] [2024-11-24 00:47:12,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:47:12,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:47:12,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:47:12,695 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:47:12,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:47:12,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844223173] [2024-11-24 00:47:12,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844223173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:47:12,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:47:12,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:47:12,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114286637] [2024-11-24 00:47:12,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:47:12,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:47:12,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:47:12,698 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:47:12,698 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:47:12,698 INFO L87 Difference]: Start difference. First operand 109553 states and 195039 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17)