./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec9_product11.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_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/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_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/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_d9f52234-ea80-4c4f-83d9-d5518c521372/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 2156ba1e79a86c856553f139302f2b9940a34efa4e31eb139d6bea893c29b00d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:27:47,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:27:47,242 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:27:47,249 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:27:47,251 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:27:47,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:27:47,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:27:47,294 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:27:47,294 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:27:47,294 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:27:47,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:27:47,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:27:47,295 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:27:47,295 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:27:47,295 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:27:47,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:27:47,297 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:27:47,297 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:27:47,297 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:27:47,297 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:27:47,297 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:27:47,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:27:47,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:27:47,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:27:47,297 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:27:47,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:27:47,297 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:27:47,298 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:27:47,298 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:27:47,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:27:47,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:27:47,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:27:47,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:27:47,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:27:47,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:27:47,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:27:47,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:27:47,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:27:47,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:27:47,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:27:47,299 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:27:47,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:27:47,299 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:27:47,299 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:27:47,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:27:47,299 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:27:47,299 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:27:47,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:27:47,299 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_d9f52234-ea80-4c4f-83d9-d5518c521372/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 -> 2156ba1e79a86c856553f139302f2b9940a34efa4e31eb139d6bea893c29b00d [2024-11-24 00:27:47,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:27:47,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:27:47,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:27:47,634 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:27:47,635 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:27:47,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c [2024-11-24 00:27:50,608 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/data/2c877c029/18a34d9dcc7b4efda2641dd0b23cb602/FLAG8735319f7 [2024-11-24 00:27:50,989 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:27:50,989 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c [2024-11-24 00:27:51,026 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/data/2c877c029/18a34d9dcc7b4efda2641dd0b23cb602/FLAG8735319f7 [2024-11-24 00:27:51,052 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/data/2c877c029/18a34d9dcc7b4efda2641dd0b23cb602 [2024-11-24 00:27:51,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:27:51,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:27:51,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:27:51,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:27:51,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:27:51,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:27:51" (1/1) ... [2024-11-24 00:27:51,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c22898a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:51, skipping insertion in model container [2024-11-24 00:27:51,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:27:51" (1/1) ... [2024-11-24 00:27:51,145 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:27:51,902 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_d9f52234-ea80-4c4f-83d9-d5518c521372/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c[71954,71967] [2024-11-24 00:27:51,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:27:51,934 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:27:51,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2024-11-24 00:27:51,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [148] [2024-11-24 00:27:51,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [505] [2024-11-24 00:27:51,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [871] [2024-11-24 00:27:51,947 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1034] [2024-11-24 00:27:51,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1069] [2024-11-24 00:27:51,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1189] [2024-11-24 00:27:51,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1201] [2024-11-24 00:27:51,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2729] [2024-11-24 00:27:51,948 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3390] [2024-11-24 00:27:52,083 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_d9f52234-ea80-4c4f-83d9-d5518c521372/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c[71954,71967] [2024-11-24 00:27:52,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:27:52,136 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:27:52,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52 WrapperNode [2024-11-24 00:27:52,137 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:27:52,138 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:27:52,139 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:27:52,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:27:52,146 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,259 INFO L138 Inliner]: procedures = 93, calls = 335, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 1086 [2024-11-24 00:27:52,259 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:27:52,263 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:27:52,264 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:27:52,264 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:27:52,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,276 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,282 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,309 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-24 00:27:52,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,309 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,329 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,369 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,377 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,397 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:27:52,398 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:27:52,398 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:27:52,398 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:27:52,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (1/1) ... [2024-11-24 00:27:52,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:27:52,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:27:52,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:27:52,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:27:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:27:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-24 00:27:52,491 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-24 00:27:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-24 00:27:52,491 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-24 00:27:52,491 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-24 00:27:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-24 00:27:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-24 00:27:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-24 00:27:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-24 00:27:52,492 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-24 00:27:52,492 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-24 00:27:52,493 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-24 00:27:52,493 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-24 00:27:52,493 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-24 00:27:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-24 00:27:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-24 00:27:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-24 00:27:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-24 00:27:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-24 00:27:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-24 00:27:52,494 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-24 00:27:52,494 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-24 00:27:52,498 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-24 00:27:52,498 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-24 00:27:52,498 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-24 00:27:52,498 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-24 00:27:52,498 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-24 00:27:52,498 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-24 00:27:52,498 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-24 00:27:52,498 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-24 00:27:52,498 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-24 00:27:52,498 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-24 00:27:52,499 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-24 00:27:52,499 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-11-24 00:27:52,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 00:27:52,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-24 00:27:52,500 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-24 00:27:52,500 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-24 00:27:52,500 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-24 00:27:52,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:27:52,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:27:52,501 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-24 00:27:52,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-24 00:27:52,759 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:27:52,761 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:27:54,446 INFO L? ?]: Removed 437 outVars from TransFormulas that were not future-live. [2024-11-24 00:27:54,447 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:27:54,490 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:27:54,490 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:27:54,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:27:54 BoogieIcfgContainer [2024-11-24 00:27:54,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:27:54,497 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:27:54,497 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:27:54,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:27:54,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:27:51" (1/3) ... [2024-11-24 00:27:54,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aeb6da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:27:54, skipping insertion in model container [2024-11-24 00:27:54,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:27:52" (2/3) ... [2024-11-24 00:27:54,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4aeb6da9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:27:54, skipping insertion in model container [2024-11-24 00:27:54,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:27:54" (3/3) ... [2024-11-24 00:27:54,506 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product11.cil.c [2024-11-24 00:27:54,525 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:27:54,526 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec9_product11.cil.c that has 24 procedures, 544 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:27:54,632 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:27:54,644 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;@2986256d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:27:54,644 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:27:54,649 INFO L276 IsEmpty]: Start isEmpty. Operand has 544 states, 428 states have (on average 1.7009345794392523) internal successors, (728), 449 states have internal predecessors, (728), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-24 00:27:54,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-24 00:27:54,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:54,678 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:54,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:54,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:54,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1079933707, now seen corresponding path program 1 times [2024-11-24 00:27:54,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:54,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951849551] [2024-11-24 00:27:54,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:54,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:54,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:55,526 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:27:55,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:55,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951849551] [2024-11-24 00:27:55,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951849551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:55,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:55,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:27:55,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225386234] [2024-11-24 00:27:55,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:55,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:27:55,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:55,563 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:27:55,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:27:55,567 INFO L87 Difference]: Start difference. First operand has 544 states, 428 states have (on average 1.7009345794392523) internal successors, (728), 449 states have internal predecessors, (728), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:55,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:55,813 INFO L93 Difference]: Finished difference Result 1068 states and 1795 transitions. [2024-11-24 00:27:55,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:27:55,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-11-24 00:27:55,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:55,848 INFO L225 Difference]: With dead ends: 1068 [2024-11-24 00:27:55,849 INFO L226 Difference]: Without dead ends: 536 [2024-11-24 00:27:55,861 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 00:27:55,865 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 5 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2663 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 00:27:55,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2663 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:55,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-24 00:27:55,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-24 00:27:55,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6966824644549763) internal successors, (716), 441 states have internal predecessors, (716), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:27:55,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 893 transitions. [2024-11-24 00:27:55,977 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 893 transitions. Word has length 104 [2024-11-24 00:27:55,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:55,977 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 893 transitions. [2024-11-24 00:27:55,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:55,978 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 893 transitions. [2024-11-24 00:27:55,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-24 00:27:55,987 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:55,987 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:55,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:27:55,987 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:55,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:55,991 INFO L85 PathProgramCache]: Analyzing trace with hash -15827200, now seen corresponding path program 1 times [2024-11-24 00:27:55,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:55,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519920513] [2024-11-24 00:27:55,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:55,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:56,388 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:27:56,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:56,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519920513] [2024-11-24 00:27:56,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519920513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:56,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:56,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:27:56,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081005729] [2024-11-24 00:27:56,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:56,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:27:56,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:56,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:27:56,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:27:56,396 INFO L87 Difference]: Start difference. First operand 536 states and 893 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:56,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:56,542 INFO L93 Difference]: Finished difference Result 1054 states and 1763 transitions. [2024-11-24 00:27:56,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:27:56,543 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2024-11-24 00:27:56,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:56,549 INFO L225 Difference]: With dead ends: 1054 [2024-11-24 00:27:56,550 INFO L226 Difference]: Without dead ends: 536 [2024-11-24 00:27:56,553 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 00:27:56,554 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 4 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2642 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 00:27:56,554 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2642 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:56,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-24 00:27:56,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-24 00:27:56,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6943127962085307) internal successors, (715), 441 states have internal predecessors, (715), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:27:56,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 892 transitions. [2024-11-24 00:27:56,634 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 892 transitions. Word has length 106 [2024-11-24 00:27:56,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:56,636 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 892 transitions. [2024-11-24 00:27:56,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:56,637 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 892 transitions. [2024-11-24 00:27:56,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-24 00:27:56,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:56,648 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:56,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:27:56,649 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:56,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:56,651 INFO L85 PathProgramCache]: Analyzing trace with hash 1732409852, now seen corresponding path program 1 times [2024-11-24 00:27:56,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:56,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068158456] [2024-11-24 00:27:56,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:56,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:56,925 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:27:56,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:56,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068158456] [2024-11-24 00:27:56,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068158456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:56,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:56,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:27:56,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293540130] [2024-11-24 00:27:56,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:56,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:27:56,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:56,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:27:56,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:27:56,929 INFO L87 Difference]: Start difference. First operand 536 states and 892 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:57,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:57,037 INFO L93 Difference]: Finished difference Result 1054 states and 1762 transitions. [2024-11-24 00:27:57,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:27:57,038 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2024-11-24 00:27:57,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:57,044 INFO L225 Difference]: With dead ends: 1054 [2024-11-24 00:27:57,047 INFO L226 Difference]: Without dead ends: 536 [2024-11-24 00:27:57,051 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 00:27:57,053 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 3 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2642 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 00:27:57,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2642 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:57,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-24 00:27:57,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-24 00:27:57,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6919431279620853) internal successors, (714), 441 states have internal predecessors, (714), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:27:57,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 891 transitions. [2024-11-24 00:27:57,106 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 891 transitions. Word has length 107 [2024-11-24 00:27:57,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:57,107 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 891 transitions. [2024-11-24 00:27:57,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:57,107 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 891 transitions. [2024-11-24 00:27:57,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-24 00:27:57,115 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:57,115 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:57,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:27:57,116 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:57,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:57,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1673834364, now seen corresponding path program 1 times [2024-11-24 00:27:57,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:57,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65254596] [2024-11-24 00:27:57,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:57,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:57,381 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:27:57,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:57,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65254596] [2024-11-24 00:27:57,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65254596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:57,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:57,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:27:57,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99995620] [2024-11-24 00:27:57,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:57,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:27:57,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:57,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:27:57,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:27:57,384 INFO L87 Difference]: Start difference. First operand 536 states and 891 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:57,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:57,460 INFO L93 Difference]: Finished difference Result 1054 states and 1761 transitions. [2024-11-24 00:27:57,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:27:57,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-11-24 00:27:57,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:57,468 INFO L225 Difference]: With dead ends: 1054 [2024-11-24 00:27:57,468 INFO L226 Difference]: Without dead ends: 536 [2024-11-24 00:27:57,470 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 00:27:57,471 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 2 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2642 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 00:27:57,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2642 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:57,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-24 00:27:57,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-24 00:27:57,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6895734597156398) internal successors, (713), 441 states have internal predecessors, (713), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:27:57,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 890 transitions. [2024-11-24 00:27:57,517 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 890 transitions. Word has length 108 [2024-11-24 00:27:57,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:57,518 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 890 transitions. [2024-11-24 00:27:57,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:57,518 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 890 transitions. [2024-11-24 00:27:57,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-24 00:27:57,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:57,522 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:57,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:27:57,523 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:57,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:57,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1660240640, now seen corresponding path program 1 times [2024-11-24 00:27:57,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:57,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599526379] [2024-11-24 00:27:57,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:57,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:57,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:57,784 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:27:57,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:57,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599526379] [2024-11-24 00:27:57,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599526379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:57,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:57,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:27:57,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996108871] [2024-11-24 00:27:57,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:57,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:27:57,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:57,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:27:57,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:27:57,789 INFO L87 Difference]: Start difference. First operand 536 states and 890 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:57,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:57,866 INFO L93 Difference]: Finished difference Result 1054 states and 1760 transitions. [2024-11-24 00:27:57,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:27:57,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-11-24 00:27:57,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:57,874 INFO L225 Difference]: With dead ends: 1054 [2024-11-24 00:27:57,874 INFO L226 Difference]: Without dead ends: 536 [2024-11-24 00:27:57,876 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 00:27:57,879 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 1 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2642 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 00:27:57,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2642 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:57,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-24 00:27:57,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-24 00:27:57,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 422 states have (on average 1.6872037914691944) internal successors, (712), 441 states have internal predecessors, (712), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:27:57,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 889 transitions. [2024-11-24 00:27:57,926 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 889 transitions. Word has length 109 [2024-11-24 00:27:57,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:57,927 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 889 transitions. [2024-11-24 00:27:57,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:57,927 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 889 transitions. [2024-11-24 00:27:57,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:27:57,933 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:57,933 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:57,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:27:57,933 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:57,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:57,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1289114120, now seen corresponding path program 1 times [2024-11-24 00:27:57,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:57,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869815611] [2024-11-24 00:27:57,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:57,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:57,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:58,288 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:27:58,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:58,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869815611] [2024-11-24 00:27:58,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869815611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:58,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:58,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:27:58,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148393603] [2024-11-24 00:27:58,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:58,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:27:58,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:58,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:27:58,293 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:27:58,293 INFO L87 Difference]: Start difference. First operand 536 states and 889 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 00:27:58,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:58,464 INFO L93 Difference]: Finished difference Result 1020 states and 1692 transitions. [2024-11-24 00:27:58,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:27:58,466 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-11-24 00:27:58,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:58,473 INFO L225 Difference]: With dead ends: 1020 [2024-11-24 00:27:58,473 INFO L226 Difference]: Without dead ends: 551 [2024-11-24 00:27:58,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:27:58,479 INFO L435 NwaCegarLoop]: 879 mSDtfsCounter, 91 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5193 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 00:27:58,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5193 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:27:58,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-24 00:27:58,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 549. [2024-11-24 00:27:58,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 432 states have (on average 1.6828703703703705) internal successors, (727), 453 states have internal predecessors, (727), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2024-11-24 00:27:58,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 908 transitions. [2024-11-24 00:27:58,533 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 908 transitions. Word has length 110 [2024-11-24 00:27:58,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:58,534 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 908 transitions. [2024-11-24 00:27:58,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 00:27:58,535 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 908 transitions. [2024-11-24 00:27:58,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-24 00:27:58,541 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:58,541 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:58,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:27:58,541 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:58,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:58,542 INFO L85 PathProgramCache]: Analyzing trace with hash 847359625, now seen corresponding path program 1 times [2024-11-24 00:27:58,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:58,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362953403] [2024-11-24 00:27:58,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:58,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:58,715 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:27:58,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:58,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362953403] [2024-11-24 00:27:58,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362953403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:58,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:58,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:27:58,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553758480] [2024-11-24 00:27:58,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:58,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:27:58,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:58,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:27:58,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:27:58,718 INFO L87 Difference]: Start difference. First operand 549 states and 908 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:58,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:58,785 INFO L93 Difference]: Finished difference Result 1072 states and 1786 transitions. [2024-11-24 00:27:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:27:58,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2024-11-24 00:27:58,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:58,791 INFO L225 Difference]: With dead ends: 1072 [2024-11-24 00:27:58,791 INFO L226 Difference]: Without dead ends: 530 [2024-11-24 00:27:58,794 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 00:27:58,795 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 0 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2644 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 00:27:58,795 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2644 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:27:58,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-11-24 00:27:58,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2024-11-24 00:27:58,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 416 states have (on average 1.6778846153846154) internal successors, (698), 435 states have internal predecessors, (698), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:27:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 875 transitions. [2024-11-24 00:27:58,821 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 875 transitions. Word has length 110 [2024-11-24 00:27:58,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:58,821 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 875 transitions. [2024-11-24 00:27:58,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:58,822 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 875 transitions. [2024-11-24 00:27:58,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-24 00:27:58,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:58,826 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:58,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:27:58,826 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:58,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:58,827 INFO L85 PathProgramCache]: Analyzing trace with hash 619999461, now seen corresponding path program 1 times [2024-11-24 00:27:58,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:58,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420289396] [2024-11-24 00:27:58,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:58,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:58,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:27:59,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:59,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420289396] [2024-11-24 00:27:59,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420289396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:59,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:59,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:27:59,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166519134] [2024-11-24 00:27:59,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:59,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:27:59,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:59,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:27:59,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:27:59,088 INFO L87 Difference]: Start difference. First operand 530 states and 875 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:59,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:59,363 INFO L93 Difference]: Finished difference Result 1017 states and 1684 transitions. [2024-11-24 00:27:59,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:27:59,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-11-24 00:27:59,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:59,369 INFO L225 Difference]: With dead ends: 1017 [2024-11-24 00:27:59,369 INFO L226 Difference]: Without dead ends: 539 [2024-11-24 00:27:59,372 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 00:27:59,372 INFO L435 NwaCegarLoop]: 832 mSDtfsCounter, 55 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4131 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:27:59,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4131 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:27:59,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-24 00:27:59,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 530. [2024-11-24 00:27:59,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 416 states have (on average 1.6682692307692308) internal successors, (694), 435 states have internal predecessors, (694), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:27:59,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 871 transitions. [2024-11-24 00:27:59,399 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 871 transitions. Word has length 111 [2024-11-24 00:27:59,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:59,400 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 871 transitions. [2024-11-24 00:27:59,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:59,400 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 871 transitions. [2024-11-24 00:27:59,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-24 00:27:59,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:59,404 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:59,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:27:59,404 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:59,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:59,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1666748123, now seen corresponding path program 1 times [2024-11-24 00:27:59,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:59,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096785178] [2024-11-24 00:27:59,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:59,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:27:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:27:59,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:27:59,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096785178] [2024-11-24 00:27:59,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096785178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:27:59,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:27:59,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:27:59,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851538912] [2024-11-24 00:27:59,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:27:59,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:27:59,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:27:59,661 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:27:59,661 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:27:59,661 INFO L87 Difference]: Start difference. First operand 530 states and 871 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:59,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:27:59,898 INFO L93 Difference]: Finished difference Result 1017 states and 1680 transitions. [2024-11-24 00:27:59,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:27:59,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 112 [2024-11-24 00:27:59,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:27:59,904 INFO L225 Difference]: With dead ends: 1017 [2024-11-24 00:27:59,904 INFO L226 Difference]: Without dead ends: 539 [2024-11-24 00:27:59,907 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 00:27:59,908 INFO L435 NwaCegarLoop]: 832 mSDtfsCounter, 54 mSDsluCounter, 3299 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4131 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 00:27:59,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4131 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:27:59,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-24 00:27:59,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 530. [2024-11-24 00:27:59,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 416 states have (on average 1.6586538461538463) internal successors, (690), 435 states have internal predecessors, (690), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:27:59,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 867 transitions. [2024-11-24 00:27:59,935 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 867 transitions. Word has length 112 [2024-11-24 00:27:59,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:27:59,936 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 867 transitions. [2024-11-24 00:27:59,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:27:59,936 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 867 transitions. [2024-11-24 00:27:59,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 00:27:59,940 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:27:59,940 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:27:59,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:27:59,941 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:27:59,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:27:59,941 INFO L85 PathProgramCache]: Analyzing trace with hash 2004534784, now seen corresponding path program 1 times [2024-11-24 00:27:59,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:27:59,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189048959] [2024-11-24 00:27:59,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:27:59,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:27:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:00,193 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:28:00,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:00,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189048959] [2024-11-24 00:28:00,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189048959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:00,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:00,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:28:00,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313416064] [2024-11-24 00:28:00,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:00,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:28:00,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:00,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:28:00,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:28:00,196 INFO L87 Difference]: Start difference. First operand 530 states and 867 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:28:00,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:00,426 INFO L93 Difference]: Finished difference Result 1017 states and 1676 transitions. [2024-11-24 00:28:00,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:28:00,427 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2024-11-24 00:28:00,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:00,433 INFO L225 Difference]: With dead ends: 1017 [2024-11-24 00:28:00,433 INFO L226 Difference]: Without dead ends: 539 [2024-11-24 00:28:00,436 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 00:28:00,436 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 53 mSDsluCounter, 3282 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4113 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 00:28:00,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4113 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 00:28:00,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-24 00:28:00,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 530. [2024-11-24 00:28:00,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 416 states have (on average 1.6490384615384615) internal successors, (686), 435 states have internal predecessors, (686), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:28:00,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 863 transitions. [2024-11-24 00:28:00,463 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 863 transitions. Word has length 113 [2024-11-24 00:28:00,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:00,463 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 863 transitions. [2024-11-24 00:28:00,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:28:00,464 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 863 transitions. [2024-11-24 00:28:00,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-24 00:28:00,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:00,468 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:00,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:28:00,468 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:00,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:00,469 INFO L85 PathProgramCache]: Analyzing trace with hash -318662272, now seen corresponding path program 1 times [2024-11-24 00:28:00,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:00,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103302636] [2024-11-24 00:28:00,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:00,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:00,745 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:28:00,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:00,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103302636] [2024-11-24 00:28:00,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103302636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:00,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:00,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:28:00,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556376766] [2024-11-24 00:28:00,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:00,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:28:00,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:00,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:28:00,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:28:00,748 INFO L87 Difference]: Start difference. First operand 530 states and 863 transitions. Second operand has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 00:28:00,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:00,863 INFO L93 Difference]: Finished difference Result 1008 states and 1658 transitions. [2024-11-24 00:28:00,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:28:00,864 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-11-24 00:28:00,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:00,871 INFO L225 Difference]: With dead ends: 1008 [2024-11-24 00:28:00,871 INFO L226 Difference]: Without dead ends: 509 [2024-11-24 00:28:00,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:28:00,875 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 84 mSDsluCounter, 4187 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5039 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 00:28:00,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5039 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:28:00,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-24 00:28:00,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-24 00:28:00,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.650632911392405) internal successors, (652), 414 states have internal predecessors, (652), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:28:00,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 829 transitions. [2024-11-24 00:28:00,907 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 829 transitions. Word has length 113 [2024-11-24 00:28:00,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:00,907 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 829 transitions. [2024-11-24 00:28:00,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 00:28:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 829 transitions. [2024-11-24 00:28:00,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-24 00:28:00,912 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:00,912 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:00,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:28:00,912 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:00,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:00,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1396201888, now seen corresponding path program 1 times [2024-11-24 00:28:00,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:00,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025917368] [2024-11-24 00:28:00,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:00,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:01,122 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:28:01,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:01,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025917368] [2024-11-24 00:28:01,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025917368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:01,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:01,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:28:01,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817552866] [2024-11-24 00:28:01,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:01,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:28:01,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:01,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:28:01,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:28:01,125 INFO L87 Difference]: Start difference. First operand 509 states and 829 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:28:01,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:01,263 INFO L93 Difference]: Finished difference Result 987 states and 1624 transitions. [2024-11-24 00:28:01,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:28:01,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2024-11-24 00:28:01,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:01,269 INFO L225 Difference]: With dead ends: 987 [2024-11-24 00:28:01,269 INFO L226 Difference]: Without dead ends: 509 [2024-11-24 00:28:01,272 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 00:28:01,272 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 17 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4051 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 00:28:01,273 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4051 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:28:01,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-24 00:28:01,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-24 00:28:01,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.6481012658227847) internal successors, (651), 414 states have internal predecessors, (651), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:28:01,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 828 transitions. [2024-11-24 00:28:01,298 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 828 transitions. Word has length 114 [2024-11-24 00:28:01,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:01,299 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 828 transitions. [2024-11-24 00:28:01,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:28:01,299 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 828 transitions. [2024-11-24 00:28:01,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-24 00:28:01,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:01,303 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:01,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:28:01,303 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:01,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:01,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1263765275, now seen corresponding path program 1 times [2024-11-24 00:28:01,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:01,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820713230] [2024-11-24 00:28:01,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:01,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:01,497 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:28:01,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:01,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820713230] [2024-11-24 00:28:01,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820713230] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:01,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:01,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:28:01,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022477557] [2024-11-24 00:28:01,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:01,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:28:01,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:01,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:28:01,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:28:01,500 INFO L87 Difference]: Start difference. First operand 509 states and 828 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:28:01,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:01,624 INFO L93 Difference]: Finished difference Result 987 states and 1623 transitions. [2024-11-24 00:28:01,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:28:01,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2024-11-24 00:28:01,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:01,631 INFO L225 Difference]: With dead ends: 987 [2024-11-24 00:28:01,631 INFO L226 Difference]: Without dead ends: 509 [2024-11-24 00:28:01,634 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 00:28:01,635 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 16 mSDsluCounter, 3239 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4051 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 00:28:01,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4051 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:28:01,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-24 00:28:01,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-24 00:28:01,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.6455696202531647) internal successors, (650), 414 states have internal predecessors, (650), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:28:01,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 827 transitions. [2024-11-24 00:28:01,664 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 827 transitions. Word has length 115 [2024-11-24 00:28:01,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:01,664 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 827 transitions. [2024-11-24 00:28:01,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:28:01,665 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 827 transitions. [2024-11-24 00:28:01,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-24 00:28:01,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:01,669 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:01,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:28:01,670 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:01,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:01,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1040636761, now seen corresponding path program 1 times [2024-11-24 00:28:01,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:01,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605838367] [2024-11-24 00:28:01,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:01,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:28:01,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:01,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605838367] [2024-11-24 00:28:01,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605838367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:01,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:01,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:28:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466986227] [2024-11-24 00:28:01,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:01,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:28:01,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:01,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:28:01,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:28:01,846 INFO L87 Difference]: Start difference. First operand 509 states and 827 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:28:01,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:01,895 INFO L93 Difference]: Finished difference Result 987 states and 1622 transitions. [2024-11-24 00:28:01,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:28:01,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-11-24 00:28:01,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:01,901 INFO L225 Difference]: With dead ends: 987 [2024-11-24 00:28:01,901 INFO L226 Difference]: Without dead ends: 509 [2024-11-24 00:28:01,904 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 00:28:01,904 INFO L435 NwaCegarLoop]: 820 mSDtfsCounter, 9 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2454 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 00:28:01,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2454 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:28:01,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-24 00:28:01,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-24 00:28:01,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.6430379746835444) internal successors, (649), 414 states have internal predecessors, (649), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:28:01,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 826 transitions. [2024-11-24 00:28:01,930 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 826 transitions. Word has length 116 [2024-11-24 00:28:01,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:01,930 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 826 transitions. [2024-11-24 00:28:01,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:28:01,930 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 826 transitions. [2024-11-24 00:28:01,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-24 00:28:01,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:01,935 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:01,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 00:28:01,936 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:01,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:01,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1295755749, now seen corresponding path program 1 times [2024-11-24 00:28:01,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:01,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507668768] [2024-11-24 00:28:01,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:01,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:02,065 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:28:02,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:02,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507668768] [2024-11-24 00:28:02,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507668768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:02,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:02,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:28:02,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139788803] [2024-11-24 00:28:02,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:02,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:28:02,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:02,067 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:28:02,067 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:28:02,067 INFO L87 Difference]: Start difference. First operand 509 states and 826 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:28:02,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:02,128 INFO L93 Difference]: Finished difference Result 981 states and 1610 transitions. [2024-11-24 00:28:02,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:28:02,128 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-11-24 00:28:02,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:02,134 INFO L225 Difference]: With dead ends: 981 [2024-11-24 00:28:02,134 INFO L226 Difference]: Without dead ends: 509 [2024-11-24 00:28:02,137 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 00:28:02,138 INFO L435 NwaCegarLoop]: 814 mSDtfsCounter, 4 mSDsluCounter, 1619 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2433 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 00:28:02,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2433 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:28:02,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2024-11-24 00:28:02,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 509. [2024-11-24 00:28:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 395 states have (on average 1.6405063291139241) internal successors, (648), 414 states have internal predecessors, (648), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-24 00:28:02,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 825 transitions. [2024-11-24 00:28:02,162 INFO L78 Accepts]: Start accepts. Automaton has 509 states and 825 transitions. Word has length 116 [2024-11-24 00:28:02,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:02,163 INFO L471 AbstractCegarLoop]: Abstraction has 509 states and 825 transitions. [2024-11-24 00:28:02,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 00:28:02,163 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states and 825 transitions. [2024-11-24 00:28:02,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-24 00:28:02,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:02,167 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:02,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:28:02,167 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:02,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:02,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1553257114, now seen corresponding path program 1 times [2024-11-24 00:28:02,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:02,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299344040] [2024-11-24 00:28:02,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:02,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:02,379 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:28:02,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:02,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299344040] [2024-11-24 00:28:02,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299344040] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:28:02,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243927447] [2024-11-24 00:28:02,381 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:02,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:28:02,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:28:02,387 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:28:02,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:28:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:02,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:28:02,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:28:02,917 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:28:02,918 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:28:02,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243927447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:02,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:28:02,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-24 00:28:02,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022651201] [2024-11-24 00:28:02,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:02,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:28:02,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:02,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:28:02,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:28:02,921 INFO L87 Difference]: Start difference. First operand 509 states and 825 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:28:03,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:03,000 INFO L93 Difference]: Finished difference Result 1428 states and 2374 transitions. [2024-11-24 00:28:03,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:28:03,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 117 [2024-11-24 00:28:03,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:03,014 INFO L225 Difference]: With dead ends: 1428 [2024-11-24 00:28:03,014 INFO L226 Difference]: Without dead ends: 964 [2024-11-24 00:28:03,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:28:03,018 INFO L435 NwaCegarLoop]: 940 mSDtfsCounter, 810 mSDsluCounter, 765 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:03,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 1705 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:28:03,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 964 states. [2024-11-24 00:28:03,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 964 to 962. [2024-11-24 00:28:03,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 748 states have (on average 1.664438502673797) internal successors, (1245), 781 states have internal predecessors, (1245), 172 states have call successors, (172), 41 states have call predecessors, (172), 41 states have return successors, (177), 165 states have call predecessors, (177), 167 states have call successors, (177) [2024-11-24 00:28:03,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1594 transitions. [2024-11-24 00:28:03,089 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1594 transitions. Word has length 117 [2024-11-24 00:28:03,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:03,090 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1594 transitions. [2024-11-24 00:28:03,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:28:03,091 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1594 transitions. [2024-11-24 00:28:03,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-24 00:28:03,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:03,095 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:03,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:28:03,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-24 00:28:03,300 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:03,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:03,301 INFO L85 PathProgramCache]: Analyzing trace with hash -906457514, now seen corresponding path program 1 times [2024-11-24 00:28:03,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:03,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892413449] [2024-11-24 00:28:03,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:03,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:03,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:03,539 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:28:03,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:03,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892413449] [2024-11-24 00:28:03,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892413449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:28:03,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584636585] [2024-11-24 00:28:03,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:03,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:28:03,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:28:03,543 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:28:03,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:28:04,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:04,021 INFO L256 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:28:04,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:28:04,075 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:28:04,075 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:28:04,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584636585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:04,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:28:04,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-24 00:28:04,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037632743] [2024-11-24 00:28:04,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:04,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:28:04,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:04,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:28:04,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:28:04,078 INFO L87 Difference]: Start difference. First operand 962 states and 1594 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:28:04,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:04,202 INFO L93 Difference]: Finished difference Result 2789 states and 4699 transitions. [2024-11-24 00:28:04,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:28:04,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 118 [2024-11-24 00:28:04,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:04,222 INFO L225 Difference]: With dead ends: 2789 [2024-11-24 00:28:04,223 INFO L226 Difference]: Without dead ends: 1872 [2024-11-24 00:28:04,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:28:04,229 INFO L435 NwaCegarLoop]: 899 mSDtfsCounter, 809 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 1667 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:04,229 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 1667 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:28:04,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2024-11-24 00:28:04,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1869. [2024-11-24 00:28:04,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1869 states, 1455 states have (on average 1.6769759450171822) internal successors, (2440), 1516 states have internal predecessors, (2440), 334 states have call successors, (334), 77 states have call predecessors, (334), 79 states have return successors, (371), 327 states have call predecessors, (371), 329 states have call successors, (371) [2024-11-24 00:28:04,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1869 states to 1869 states and 3145 transitions. [2024-11-24 00:28:04,348 INFO L78 Accepts]: Start accepts. Automaton has 1869 states and 3145 transitions. Word has length 118 [2024-11-24 00:28:04,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:04,348 INFO L471 AbstractCegarLoop]: Abstraction has 1869 states and 3145 transitions. [2024-11-24 00:28:04,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:28:04,349 INFO L276 IsEmpty]: Start isEmpty. Operand 1869 states and 3145 transitions. [2024-11-24 00:28:04,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 00:28:04,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:04,353 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:04,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:28:04,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 00:28:04,553 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:04,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:04,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1964464808, now seen corresponding path program 1 times [2024-11-24 00:28:04,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:04,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509843863] [2024-11-24 00:28:04,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:04,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:04,773 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:28:04,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:04,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509843863] [2024-11-24 00:28:04,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509843863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:28:04,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150197408] [2024-11-24 00:28:04,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:04,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:28:04,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:28:04,776 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:28:04,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:28:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:05,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:28:05,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:28:05,294 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:28:05,294 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:28:05,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150197408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:05,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:28:05,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-24 00:28:05,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030678131] [2024-11-24 00:28:05,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:05,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:28:05,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:05,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:28:05,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:28:05,297 INFO L87 Difference]: Start difference. First operand 1869 states and 3145 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:28:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:05,526 INFO L93 Difference]: Finished difference Result 5512 states and 9403 transitions. [2024-11-24 00:28:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:28:05,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 119 [2024-11-24 00:28:05,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:05,573 INFO L225 Difference]: With dead ends: 5512 [2024-11-24 00:28:05,574 INFO L226 Difference]: Without dead ends: 3688 [2024-11-24 00:28:05,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:28:05,587 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 807 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:05,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 1660 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:28:05,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3688 states. [2024-11-24 00:28:05,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3688 to 3684. [2024-11-24 00:28:05,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3684 states, 2870 states have (on average 1.6829268292682926) internal successors, (4830), 2987 states have internal predecessors, (4830), 658 states have call successors, (658), 149 states have call predecessors, (658), 155 states have return successors, (795), 651 states have call predecessors, (795), 653 states have call successors, (795) [2024-11-24 00:28:05,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3684 states to 3684 states and 6283 transitions. [2024-11-24 00:28:05,914 INFO L78 Accepts]: Start accepts. Automaton has 3684 states and 6283 transitions. Word has length 119 [2024-11-24 00:28:05,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:05,915 INFO L471 AbstractCegarLoop]: Abstraction has 3684 states and 6283 transitions. [2024-11-24 00:28:05,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:28:05,915 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 6283 transitions. [2024-11-24 00:28:05,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 00:28:05,924 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:05,924 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:05,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:28:06,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-24 00:28:06,129 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:06,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:06,130 INFO L85 PathProgramCache]: Analyzing trace with hash 768747480, now seen corresponding path program 1 times [2024-11-24 00:28:06,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:06,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669445574] [2024-11-24 00:28:06,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:06,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:06,287 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:28:06,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:06,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669445574] [2024-11-24 00:28:06,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669445574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:28:06,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906456664] [2024-11-24 00:28:06,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:06,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:28:06,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:28:06,290 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:28:06,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:28:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:06,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:28:06,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:28:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:28:06,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:28:06,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906456664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:06,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:28:06,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-24 00:28:06,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009416375] [2024-11-24 00:28:06,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:06,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:28:06,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:06,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:28:06,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:28:06,828 INFO L87 Difference]: Start difference. First operand 3684 states and 6283 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:28:07,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:07,236 INFO L93 Difference]: Finished difference Result 10959 states and 18988 transitions. [2024-11-24 00:28:07,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:28:07,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 120 [2024-11-24 00:28:07,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:07,317 INFO L225 Difference]: With dead ends: 10959 [2024-11-24 00:28:07,317 INFO L226 Difference]: Without dead ends: 7320 [2024-11-24 00:28:07,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:28:07,343 INFO L435 NwaCegarLoop]: 915 mSDtfsCounter, 807 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 1687 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:07,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 1687 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:28:07,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2024-11-24 00:28:07,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 7315. [2024-11-24 00:28:07,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7315 states, 5701 states have (on average 1.685318365199088) internal successors, (9608), 5930 states have internal predecessors, (9608), 1306 states have call successors, (1306), 293 states have call predecessors, (1306), 307 states have return successors, (1763), 1299 states have call predecessors, (1763), 1301 states have call successors, (1763) [2024-11-24 00:28:07,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7315 states to 7315 states and 12677 transitions. [2024-11-24 00:28:07,989 INFO L78 Accepts]: Start accepts. Automaton has 7315 states and 12677 transitions. Word has length 120 [2024-11-24 00:28:07,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:07,990 INFO L471 AbstractCegarLoop]: Abstraction has 7315 states and 12677 transitions. [2024-11-24 00:28:07,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:28:07,991 INFO L276 IsEmpty]: Start isEmpty. Operand 7315 states and 12677 transitions. [2024-11-24 00:28:07,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-24 00:28:07,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:07,996 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:08,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:28:08,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:28:08,197 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:08,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:08,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1938747414, now seen corresponding path program 1 times [2024-11-24 00:28:08,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:08,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091487476] [2024-11-24 00:28:08,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:08,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:08,409 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-24 00:28:08,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:08,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091487476] [2024-11-24 00:28:08,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091487476] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:28:08,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789274374] [2024-11-24 00:28:08,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:08,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:28:08,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:28:08,413 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:28:08,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:28:08,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:08,827 INFO L256 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:28:08,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:28:08,875 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 00:28:08,875 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:28:08,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789274374] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:08,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:28:08,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-24 00:28:08,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520098630] [2024-11-24 00:28:08,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:08,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:28:08,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:08,877 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:28:08,877 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:28:08,877 INFO L87 Difference]: Start difference. First operand 7315 states and 12677 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:28:09,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:09,596 INFO L93 Difference]: Finished difference Result 21854 states and 38796 transitions. [2024-11-24 00:28:09,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:28:09,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 121 [2024-11-24 00:28:09,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:09,760 INFO L225 Difference]: With dead ends: 21854 [2024-11-24 00:28:09,760 INFO L226 Difference]: Without dead ends: 14576 [2024-11-24 00:28:09,813 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:28:09,813 INFO L435 NwaCegarLoop]: 935 mSDtfsCounter, 804 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:09,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 1710 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:28:09,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14576 states. [2024-11-24 00:28:10,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14576 to 14570. [2024-11-24 00:28:10,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14570 states, 11357 states have (on average 1.6856564233512372) internal successors, (19144), 11810 states have internal predecessors, (19144), 2602 states have call successors, (2602), 581 states have call predecessors, (2602), 610 states have return successors, (4130), 2594 states have call predecessors, (4130), 2597 states have call successors, (4130) [2024-11-24 00:28:10,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14570 states to 14570 states and 25876 transitions. [2024-11-24 00:28:10,960 INFO L78 Accepts]: Start accepts. Automaton has 14570 states and 25876 transitions. Word has length 121 [2024-11-24 00:28:10,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:10,961 INFO L471 AbstractCegarLoop]: Abstraction has 14570 states and 25876 transitions. [2024-11-24 00:28:10,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-24 00:28:10,961 INFO L276 IsEmpty]: Start isEmpty. Operand 14570 states and 25876 transitions. [2024-11-24 00:28:10,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-11-24 00:28:10,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:11,000 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:11,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 00:28:11,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f52234-ea80-4c4f-83d9-d5518c521372/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:28:11,204 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:11,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:11,205 INFO L85 PathProgramCache]: Analyzing trace with hash 2104333976, now seen corresponding path program 1 times [2024-11-24 00:28:11,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:11,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965341936] [2024-11-24 00:28:11,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:11,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:11,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:11,490 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-24 00:28:11,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:11,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965341936] [2024-11-24 00:28:11,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965341936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:11,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:11,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:28:11,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620006335] [2024-11-24 00:28:11,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:11,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:28:11,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:11,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:28:11,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:28:11,493 INFO L87 Difference]: Start difference. First operand 14570 states and 25876 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 00:28:13,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:13,027 INFO L93 Difference]: Finished difference Result 29223 states and 53527 transitions. [2024-11-24 00:28:13,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:28:13,027 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 182 [2024-11-24 00:28:13,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:13,147 INFO L225 Difference]: With dead ends: 29223 [2024-11-24 00:28:13,147 INFO L226 Difference]: Without dead ends: 14698 [2024-11-24 00:28:13,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:28:13,242 INFO L435 NwaCegarLoop]: 807 mSDtfsCounter, 819 mSDsluCounter, 2212 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 823 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:13,242 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [823 Valid, 3019 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:28:13,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14698 states. [2024-11-24 00:28:14,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14698 to 14698. [2024-11-24 00:28:14,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14698 states, 11453 states have (on average 1.6799091940976163) internal successors, (19240), 11906 states have internal predecessors, (19240), 2602 states have call successors, (2602), 613 states have call predecessors, (2602), 642 states have return successors, (4162), 2594 states have call predecessors, (4162), 2597 states have call successors, (4162) [2024-11-24 00:28:14,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14698 states to 14698 states and 26004 transitions. [2024-11-24 00:28:14,206 INFO L78 Accepts]: Start accepts. Automaton has 14698 states and 26004 transitions. Word has length 182 [2024-11-24 00:28:14,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:14,207 INFO L471 AbstractCegarLoop]: Abstraction has 14698 states and 26004 transitions. [2024-11-24 00:28:14,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 00:28:14,207 INFO L276 IsEmpty]: Start isEmpty. Operand 14698 states and 26004 transitions. [2024-11-24 00:28:14,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-11-24 00:28:14,233 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:14,234 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:14,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 00:28:14,234 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:14,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:14,234 INFO L85 PathProgramCache]: Analyzing trace with hash 755683207, now seen corresponding path program 1 times [2024-11-24 00:28:14,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:14,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657486530] [2024-11-24 00:28:14,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:14,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:14,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:14,673 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-24 00:28:14,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:14,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657486530] [2024-11-24 00:28:14,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657486530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:14,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:14,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:28:14,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822376624] [2024-11-24 00:28:14,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:14,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:28:14,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:14,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:28:14,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:28:14,677 INFO L87 Difference]: Start difference. First operand 14698 states and 26004 transitions. Second operand has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 00:28:16,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:16,202 INFO L93 Difference]: Finished difference Result 29511 states and 53751 transitions. [2024-11-24 00:28:16,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:28:16,203 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 183 [2024-11-24 00:28:16,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:16,463 INFO L225 Difference]: With dead ends: 29511 [2024-11-24 00:28:16,463 INFO L226 Difference]: Without dead ends: 14858 [2024-11-24 00:28:16,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:28:16,538 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 818 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:16,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 3025 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:28:16,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14858 states. [2024-11-24 00:28:17,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14858 to 14858. [2024-11-24 00:28:17,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14858 states, 11581 states have (on average 1.672394439167602) internal successors, (19368), 12034 states have internal predecessors, (19368), 2602 states have call successors, (2602), 645 states have call predecessors, (2602), 674 states have return successors, (4194), 2594 states have call predecessors, (4194), 2597 states have call successors, (4194) [2024-11-24 00:28:17,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14858 states to 14858 states and 26164 transitions. [2024-11-24 00:28:17,359 INFO L78 Accepts]: Start accepts. Automaton has 14858 states and 26164 transitions. Word has length 183 [2024-11-24 00:28:17,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:17,359 INFO L471 AbstractCegarLoop]: Abstraction has 14858 states and 26164 transitions. [2024-11-24 00:28:17,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.833333333333332) internal successors, (113), 6 states have internal predecessors, (113), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 00:28:17,360 INFO L276 IsEmpty]: Start isEmpty. Operand 14858 states and 26164 transitions. [2024-11-24 00:28:17,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-24 00:28:17,392 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:17,392 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:17,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 00:28:17,393 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:17,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:17,393 INFO L85 PathProgramCache]: Analyzing trace with hash 400122236, now seen corresponding path program 1 times [2024-11-24 00:28:17,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:17,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938907958] [2024-11-24 00:28:17,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:17,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:17,710 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-24 00:28:17,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:17,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938907958] [2024-11-24 00:28:17,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938907958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:17,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:17,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:28:17,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165367101] [2024-11-24 00:28:17,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:17,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:28:17,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:17,713 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:28:17,713 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:28:17,713 INFO L87 Difference]: Start difference. First operand 14858 states and 26164 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 00:28:18,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:18,798 INFO L93 Difference]: Finished difference Result 29863 states and 54039 transitions. [2024-11-24 00:28:18,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:28:18,799 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 184 [2024-11-24 00:28:18,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:18,939 INFO L225 Difference]: With dead ends: 29863 [2024-11-24 00:28:18,940 INFO L226 Difference]: Without dead ends: 15050 [2024-11-24 00:28:19,035 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:28:19,036 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 818 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:19,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 3025 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:28:19,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15050 states. [2024-11-24 00:28:19,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15050 to 15050. [2024-11-24 00:28:19,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15050 states, 11741 states have (on average 1.663231411293757) internal successors, (19528), 12194 states have internal predecessors, (19528), 2602 states have call successors, (2602), 677 states have call predecessors, (2602), 706 states have return successors, (4226), 2594 states have call predecessors, (4226), 2597 states have call successors, (4226) [2024-11-24 00:28:19,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15050 states to 15050 states and 26356 transitions. [2024-11-24 00:28:19,908 INFO L78 Accepts]: Start accepts. Automaton has 15050 states and 26356 transitions. Word has length 184 [2024-11-24 00:28:19,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:19,908 INFO L471 AbstractCegarLoop]: Abstraction has 15050 states and 26356 transitions. [2024-11-24 00:28:19,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 00:28:19,909 INFO L276 IsEmpty]: Start isEmpty. Operand 15050 states and 26356 transitions. [2024-11-24 00:28:19,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-24 00:28:19,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:19,936 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:19,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 00:28:19,937 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:19,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:19,937 INFO L85 PathProgramCache]: Analyzing trace with hash 765573931, now seen corresponding path program 1 times [2024-11-24 00:28:19,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:19,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933873344] [2024-11-24 00:28:19,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:19,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:20,133 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-24 00:28:20,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:20,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933873344] [2024-11-24 00:28:20,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933873344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:20,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:20,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:28:20,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829344658] [2024-11-24 00:28:20,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:20,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:28:20,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:20,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:28:20,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:28:20,135 INFO L87 Difference]: Start difference. First operand 15050 states and 26356 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 00:28:21,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:21,500 INFO L93 Difference]: Finished difference Result 30279 states and 54391 transitions. [2024-11-24 00:28:21,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:28:21,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) Word has length 185 [2024-11-24 00:28:21,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:21,676 INFO L225 Difference]: With dead ends: 30279 [2024-11-24 00:28:21,677 INFO L226 Difference]: Without dead ends: 15274 [2024-11-24 00:28:21,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:28:21,794 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 818 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 3025 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:21,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 3025 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:28:21,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15274 states. [2024-11-24 00:28:22,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15274 to 15274. [2024-11-24 00:28:22,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15274 states, 11933 states have (on average 1.6525601273778596) internal successors, (19720), 12386 states have internal predecessors, (19720), 2602 states have call successors, (2602), 709 states have call predecessors, (2602), 738 states have return successors, (4258), 2594 states have call predecessors, (4258), 2597 states have call successors, (4258) [2024-11-24 00:28:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15274 states to 15274 states and 26580 transitions. [2024-11-24 00:28:22,844 INFO L78 Accepts]: Start accepts. Automaton has 15274 states and 26580 transitions. Word has length 185 [2024-11-24 00:28:22,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:22,845 INFO L471 AbstractCegarLoop]: Abstraction has 15274 states and 26580 transitions. [2024-11-24 00:28:22,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 4 states have call successors, (23), 2 states have call predecessors, (23), 3 states have return successors, (22), 4 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 00:28:22,845 INFO L276 IsEmpty]: Start isEmpty. Operand 15274 states and 26580 transitions. [2024-11-24 00:28:22,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-24 00:28:22,877 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:22,878 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:22,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-24 00:28:22,878 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:22,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:22,879 INFO L85 PathProgramCache]: Analyzing trace with hash 2007581792, now seen corresponding path program 1 times [2024-11-24 00:28:22,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:22,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938555596] [2024-11-24 00:28:22,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:22,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:23,494 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-24 00:28:23,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:23,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938555596] [2024-11-24 00:28:23,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938555596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:23,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:23,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 00:28:23,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746918080] [2024-11-24 00:28:23,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:23,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:28:23,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:23,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:28:23,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:28:23,496 INFO L87 Difference]: Start difference. First operand 15274 states and 26580 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-24 00:28:33,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:33,095 INFO L93 Difference]: Finished difference Result 68262 states and 130881 transitions. [2024-11-24 00:28:33,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 00:28:33,096 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) Word has length 186 [2024-11-24 00:28:33,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:33,895 INFO L225 Difference]: With dead ends: 68262 [2024-11-24 00:28:33,896 INFO L226 Difference]: Without dead ends: 53033 [2024-11-24 00:28:34,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2024-11-24 00:28:34,041 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 2506 mSDsluCounter, 4387 mSDsCounter, 0 mSdLazyCounter, 10040 mSolverCounterSat, 614 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2615 SdHoareTripleChecker+Valid, 5257 SdHoareTripleChecker+Invalid, 10654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 10040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:34,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2615 Valid, 5257 Invalid, 10654 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [614 Valid, 10040 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-24 00:28:34,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53033 states. [2024-11-24 00:28:37,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53033 to 51728. [2024-11-24 00:28:37,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51728 states, 39296 states have (on average 1.6344157166123778) internal successors, (64226), 41029 states have internal predecessors, (64226), 9932 states have call successors, (9932), 2118 states have call predecessors, (9932), 2499 states have return successors, (23042), 10148 states have call predecessors, (23042), 9927 states have call successors, (23042) [2024-11-24 00:28:37,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51728 states to 51728 states and 97200 transitions. [2024-11-24 00:28:37,924 INFO L78 Accepts]: Start accepts. Automaton has 51728 states and 97200 transitions. Word has length 186 [2024-11-24 00:28:37,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:37,924 INFO L471 AbstractCegarLoop]: Abstraction has 51728 states and 97200 transitions. [2024-11-24 00:28:37,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 8 states have internal predecessors, (116), 5 states have call successors, (23), 3 states have call predecessors, (23), 5 states have return successors, (22), 7 states have call predecessors, (22), 4 states have call successors, (22) [2024-11-24 00:28:37,925 INFO L276 IsEmpty]: Start isEmpty. Operand 51728 states and 97200 transitions. [2024-11-24 00:28:38,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-24 00:28:38,042 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:38,043 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:38,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-24 00:28:38,043 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:38,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:38,044 INFO L85 PathProgramCache]: Analyzing trace with hash -5398507, now seen corresponding path program 1 times [2024-11-24 00:28:38,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:38,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954076058] [2024-11-24 00:28:38,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:38,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:38,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:38,427 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-24 00:28:38,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:38,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954076058] [2024-11-24 00:28:38,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954076058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:38,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:38,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:28:38,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589607231] [2024-11-24 00:28:38,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:38,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:28:38,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:38,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:28:38,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:28:38,429 INFO L87 Difference]: Start difference. First operand 51728 states and 97200 transitions. Second operand has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 00:28:40,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:40,416 INFO L93 Difference]: Finished difference Result 66805 states and 123451 transitions. [2024-11-24 00:28:40,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:28:40,416 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 189 [2024-11-24 00:28:40,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:40,635 INFO L225 Difference]: With dead ends: 66805 [2024-11-24 00:28:40,635 INFO L226 Difference]: Without dead ends: 15111 [2024-11-24 00:28:41,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:28:41,060 INFO L435 NwaCegarLoop]: 805 mSDtfsCounter, 7 mSDsluCounter, 4808 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5613 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:41,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5613 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:28:41,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15111 states. [2024-11-24 00:28:42,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15111 to 15111. [2024-11-24 00:28:42,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15111 states, 11834 states have (on average 1.652273111374007) internal successors, (19553), 12287 states have internal predecessors, (19553), 2538 states have call successors, (2538), 709 states have call predecessors, (2538), 738 states have return successors, (4194), 2530 states have call predecessors, (4194), 2533 states have call successors, (4194) [2024-11-24 00:28:42,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15111 states to 15111 states and 26285 transitions. [2024-11-24 00:28:42,543 INFO L78 Accepts]: Start accepts. Automaton has 15111 states and 26285 transitions. Word has length 189 [2024-11-24 00:28:42,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:42,543 INFO L471 AbstractCegarLoop]: Abstraction has 15111 states and 26285 transitions. [2024-11-24 00:28:42,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-11-24 00:28:42,543 INFO L276 IsEmpty]: Start isEmpty. Operand 15111 states and 26285 transitions. [2024-11-24 00:28:42,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-24 00:28:42,559 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:42,559 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:28:42,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-24 00:28:42,560 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:42,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:42,560 INFO L85 PathProgramCache]: Analyzing trace with hash -1209443469, now seen corresponding path program 1 times [2024-11-24 00:28:42,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:42,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833131116] [2024-11-24 00:28:42,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:42,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-24 00:28:42,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:42,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833131116] [2024-11-24 00:28:42,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833131116] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:42,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:42,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:28:42,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705028034] [2024-11-24 00:28:42,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:42,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:28:42,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:42,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:28:42,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:28:42,949 INFO L87 Difference]: Start difference. First operand 15111 states and 26285 transitions. Second operand has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-24 00:28:45,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:45,830 INFO L93 Difference]: Finished difference Result 30308 states and 53872 transitions. [2024-11-24 00:28:45,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:28:45,831 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) Word has length 192 [2024-11-24 00:28:45,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:45,950 INFO L225 Difference]: With dead ends: 30308 [2024-11-24 00:28:45,950 INFO L226 Difference]: Without dead ends: 15239 [2024-11-24 00:28:46,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-24 00:28:46,046 INFO L435 NwaCegarLoop]: 345 mSDtfsCounter, 1236 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 3177 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1236 SdHoareTripleChecker+Valid, 1719 SdHoareTripleChecker+Invalid, 3512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 3177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:46,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1236 Valid, 1719 Invalid, 3512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 3177 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-24 00:28:46,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15239 states. [2024-11-24 00:28:47,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15239 to 15239. [2024-11-24 00:28:47,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15239 states, 11930 states have (on average 1.647024308466052) internal successors, (19649), 12383 states have internal predecessors, (19649), 2538 states have call successors, (2538), 709 states have call predecessors, (2538), 770 states have return successors, (4354), 2562 states have call predecessors, (4354), 2533 states have call successors, (4354) [2024-11-24 00:28:47,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15239 states to 15239 states and 26541 transitions. [2024-11-24 00:28:47,165 INFO L78 Accepts]: Start accepts. Automaton has 15239 states and 26541 transitions. Word has length 192 [2024-11-24 00:28:47,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:47,165 INFO L471 AbstractCegarLoop]: Abstraction has 15239 states and 26541 transitions. [2024-11-24 00:28:47,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.444444444444445) internal successors, (121), 8 states have internal predecessors, (121), 5 states have call successors, (24), 3 states have call predecessors, (24), 5 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-24 00:28:47,166 INFO L276 IsEmpty]: Start isEmpty. Operand 15239 states and 26541 transitions. [2024-11-24 00:28:47,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-11-24 00:28:47,180 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:47,180 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 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 00:28:47,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-24 00:28:47,181 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:47,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:47,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1054640134, now seen corresponding path program 1 times [2024-11-24 00:28:47,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:47,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957230896] [2024-11-24 00:28:47,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:47,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:47,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:47,431 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-24 00:28:47,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:47,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957230896] [2024-11-24 00:28:47,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957230896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:47,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:47,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:28:47,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888234761] [2024-11-24 00:28:47,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:47,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:28:47,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:47,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:28:47,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:28:47,433 INFO L87 Difference]: Start difference. First operand 15239 states and 26541 transitions. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-24 00:28:52,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:28:52,890 INFO L93 Difference]: Finished difference Result 59903 states and 108730 transitions. [2024-11-24 00:28:52,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 00:28:52,890 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) Word has length 193 [2024-11-24 00:28:52,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:28:53,210 INFO L225 Difference]: With dead ends: 59903 [2024-11-24 00:28:53,210 INFO L226 Difference]: Without dead ends: 44706 [2024-11-24 00:28:53,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-11-24 00:28:53,327 INFO L435 NwaCegarLoop]: 491 mSDtfsCounter, 3302 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 4786 mSolverCounterSat, 891 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3372 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 5677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 891 IncrementalHoareTripleChecker+Valid, 4786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:28:53,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3372 Valid, 2201 Invalid, 5677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [891 Valid, 4786 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 00:28:53,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44706 states. [2024-11-24 00:28:55,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44706 to 44302. [2024-11-24 00:28:55,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44302 states, 34596 states have (on average 1.6161694993640883) internal successors, (55913), 35944 states have internal predecessors, (55913), 7400 states have call successors, (7400), 2213 states have call predecessors, (7400), 2305 states have return successors, (14944), 7297 states have call predecessors, (14944), 7395 states have call successors, (14944) [2024-11-24 00:28:55,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44302 states to 44302 states and 78257 transitions. [2024-11-24 00:28:56,000 INFO L78 Accepts]: Start accepts. Automaton has 44302 states and 78257 transitions. Word has length 193 [2024-11-24 00:28:56,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:28:56,001 INFO L471 AbstractCegarLoop]: Abstraction has 44302 states and 78257 transitions. [2024-11-24 00:28:56,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 4 states have return successors, (23), 6 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-24 00:28:56,001 INFO L276 IsEmpty]: Start isEmpty. Operand 44302 states and 78257 transitions. [2024-11-24 00:28:56,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-24 00:28:56,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:28:56,015 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 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 00:28:56,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-24 00:28:56,015 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:28:56,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:28:56,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1758224546, now seen corresponding path program 1 times [2024-11-24 00:28:56,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:28:56,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503512653] [2024-11-24 00:28:56,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:28:56,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:28:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:28:56,469 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-24 00:28:56,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:28:56,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503512653] [2024-11-24 00:28:56,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503512653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:28:56,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:28:56,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:28:56,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728708886] [2024-11-24 00:28:56,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:28:56,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:28:56,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:28:56,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:28:56,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:28:56,471 INFO L87 Difference]: Start difference. First operand 44302 states and 78257 transitions. Second operand has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) [2024-11-24 00:29:07,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:29:07,961 INFO L93 Difference]: Finished difference Result 160723 states and 340302 transitions. [2024-11-24 00:29:07,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:29:07,961 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.375) internal successors, (123), 8 states have internal predecessors, (123), 5 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (23), 5 states have call predecessors, (23), 4 states have call successors, (23) Word has length 195 [2024-11-24 00:29:07,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted.