./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 a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/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_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2156ba1e79a86c856553f139302f2b9940a34efa4e31eb139d6bea893c29b00d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:09:55,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:09:55,902 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:09:55,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:09:55,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:09:55,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:09:55,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:09:55,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:09:55,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:09:55,943 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:09:55,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:09:55,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:09:55,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:09:55,946 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:09:55,947 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:09:55,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:09:55,948 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:09:55,948 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:09:55,949 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:09:55,949 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:09:55,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:09:55,951 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:09:55,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:09:55,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:09:55,952 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:09:55,952 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:09:55,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:09:55,954 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:09:55,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:09:55,955 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:09:55,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:09:55,956 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:09:55,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:09:55,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:09:55,957 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:09:55,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:09:55,958 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:09:55,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:09:55,959 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:09:55,959 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:09:55,960 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:09:55,960 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:09:55,961 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2156ba1e79a86c856553f139302f2b9940a34efa4e31eb139d6bea893c29b00d [2024-11-08 16:09:56,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:09:56,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:09:56,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:09:56,348 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:09:56,350 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:09:56,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c Unable to find full path for "g++" [2024-11-08 16:09:58,934 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:09:59,363 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:09:59,364 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c [2024-11-08 16:09:59,410 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/data/e7717bc26/b60085aa56f1419bb1b58f47f5042b9e/FLAG4b87558cd [2024-11-08 16:09:59,444 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/data/e7717bc26/b60085aa56f1419bb1b58f47f5042b9e [2024-11-08 16:09:59,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:09:59,452 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:09:59,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:09:59,456 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:09:59,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:09:59,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:09:59" (1/1) ... [2024-11-08 16:09:59,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61d17665 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:09:59, skipping insertion in model container [2024-11-08 16:09:59,470 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:09:59" (1/1) ... [2024-11-08 16:09:59,564 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:10:00,485 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_80b5b790-702b-404f-ae4d-7f4c265ee262/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c[71954,71967] [2024-11-08 16:10:00,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:10:00,523 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:10:00,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [48] [2024-11-08 16:10:00,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [148] [2024-11-08 16:10:00,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [505] [2024-11-08 16:10:00,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [871] [2024-11-08 16:10:00,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1034] [2024-11-08 16:10:00,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1069] [2024-11-08 16:10:00,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1189] [2024-11-08 16:10:00,543 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1201] [2024-11-08 16:10:00,543 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2729] [2024-11-08 16:10:00,544 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3390] [2024-11-08 16:10:00,746 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_80b5b790-702b-404f-ae4d-7f4c265ee262/sv-benchmarks/c/product-lines/elevator_spec9_product11.cil.c[71954,71967] [2024-11-08 16:10:00,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:10:00,795 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:10:00,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00 WrapperNode [2024-11-08 16:10:00,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:10:00,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:10:00,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:10:00,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:10:00,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (1/1) ... [2024-11-08 16:10:00,858 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (1/1) ... [2024-11-08 16:10:00,948 INFO L138 Inliner]: procedures = 93, calls = 335, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 1086 [2024-11-08 16:10:00,952 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:10:00,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:10:00,956 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:10:00,957 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:10:00,984 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (1/1) ... [2024-11-08 16:10:00,984 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (1/1) ... [2024-11-08 16:10:00,992 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (1/1) ... [2024-11-08 16:10:01,052 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]. [2024-11-08 16:10:01,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (1/1) ... [2024-11-08 16:10:01,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (1/1) ... [2024-11-08 16:10:01,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (1/1) ... [2024-11-08 16:10:01,129 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (1/1) ... [2024-11-08 16:10:01,138 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (1/1) ... [2024-11-08 16:10:01,156 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (1/1) ... [2024-11-08 16:10:01,171 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:10:01,172 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:10:01,176 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:10:01,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:10:01,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (1/1) ... [2024-11-08 16:10:01,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:10:01,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:10:01,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:10:01,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:10:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:10:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-08 16:10:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-08 16:10:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-08 16:10:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-08 16:10:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-08 16:10:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-08 16:10:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-08 16:10:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-08 16:10:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-08 16:10:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-08 16:10:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 16:10:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 16:10:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 16:10:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 16:10:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-08 16:10:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-08 16:10:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-08 16:10:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-08 16:10:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-08 16:10:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-08 16:10:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-08 16:10:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-08 16:10:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-08 16:10:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-08 16:10:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-08 16:10:01,281 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-08 16:10:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-08 16:10:01,281 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-08 16:10:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-08 16:10:01,282 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-08 16:10:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-08 16:10:01,282 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-08 16:10:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-08 16:10:01,282 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-08 16:10:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-08 16:10:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-08 16:10:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2024-11-08 16:10:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2024-11-08 16:10:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:10:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:10:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:10:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 16:10:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 16:10:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-08 16:10:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-08 16:10:01,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-08 16:10:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-08 16:10:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-08 16:10:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-08 16:10:01,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-08 16:10:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-08 16:10:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-08 16:10:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-08 16:10:01,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-08 16:10:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-08 16:10:01,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-08 16:10:01,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-08 16:10:01,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-08 16:10:01,291 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-08 16:10:01,291 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-08 16:10:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-08 16:10:01,292 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-08 16:10:01,292 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-08 16:10:01,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-08 16:10:01,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:10:01,293 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:10:01,294 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-08 16:10:01,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-08 16:10:01,624 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:10:01,628 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:10:03,376 INFO L? ?]: Removed 437 outVars from TransFormulas that were not future-live. [2024-11-08 16:10:03,377 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:10:03,410 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:10:03,410 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 16:10:03,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:10:03 BoogieIcfgContainer [2024-11-08 16:10:03,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:10:03,413 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:10:03,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:10:03,418 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:10:03,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:09:59" (1/3) ... [2024-11-08 16:10:03,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a3b9b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:10:03, skipping insertion in model container [2024-11-08 16:10:03,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:10:00" (2/3) ... [2024-11-08 16:10:03,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a3b9b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:10:03, skipping insertion in model container [2024-11-08 16:10:03,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:10:03" (3/3) ... [2024-11-08 16:10:03,422 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product11.cil.c [2024-11-08 16:10:03,452 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:10:03,453 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:10:03,615 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:10:03,623 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;@1826c03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:10:03,623 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:10:03,631 INFO L276 IsEmpty]: Start isEmpty. Operand has 545 states, 429 states have (on average 1.6993006993006994) internal successors, (729), 450 states have internal predecessors, (729), 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) [2024-11-08 16:10:03,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:10:03,666 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:10:03,667 INFO L215 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] [2024-11-08 16:10:03,668 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:10:03,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:10:03,675 INFO L85 PathProgramCache]: Analyzing trace with hash -104868153, now seen corresponding path program 1 times [2024-11-08 16:10:03,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:10:03,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882681404] [2024-11-08 16:10:03,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:10:03,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:10:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:04,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:10:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:04,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:04,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:04,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 16:10:04,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:05,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 16:10:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:05,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:05,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:05,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:05,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:10:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:05,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:10:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:05,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:05,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:05,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:05,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:10:05,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:05,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:10:05,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:05,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:10:05,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:05,886 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:10:05,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:10:05,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882681404] [2024-11-08 16:10:05,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882681404] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:10:05,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:10:05,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:10:05,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555310524] [2024-11-08 16:10:05,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:10:05,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:10:05,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:10:05,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:10:05,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:10:05,958 INFO L87 Difference]: Start difference. First operand has 545 states, 429 states have (on average 1.6993006993006994) internal successors, (729), 450 states have internal predecessors, (729), 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 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:10:15,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:10:15,418 INFO L93 Difference]: Finished difference Result 1313 states and 2243 transitions. [2024-11-08 16:10:15,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:10:15,423 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 5 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 [2024-11-08 16:10:15,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:10:15,461 INFO L225 Difference]: With dead ends: 1313 [2024-11-08 16:10:15,463 INFO L226 Difference]: Without dead ends: 780 [2024-11-08 16:10:15,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:10:15,483 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 949 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 2954 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1021 SdHoareTripleChecker+Valid, 1749 SdHoareTripleChecker+Invalid, 3152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 2954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:10:15,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1021 Valid, 1749 Invalid, 3152 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [198 Valid, 2954 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-08 16:10:15,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-11-08 16:10:15,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 537. [2024-11-08 16:10:15,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 423 states have (on average 1.6950354609929077) internal successors, (717), 442 states have internal predecessors, (717), 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) [2024-11-08 16:10:15,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 894 transitions. [2024-11-08 16:10:15,829 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 894 transitions. Word has length 104 [2024-11-08 16:10:15,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:10:15,831 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 894 transitions. [2024-11-08 16:10:15,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:10:15,832 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 894 transitions. [2024-11-08 16:10:15,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 16:10:15,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:10:15,843 INFO L215 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] [2024-11-08 16:10:15,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:10:15,844 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:10:15,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:10:15,845 INFO L85 PathProgramCache]: Analyzing trace with hash -2079391817, now seen corresponding path program 1 times [2024-11-08 16:10:15,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:10:15,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286104909] [2024-11-08 16:10:15,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:10:15,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:10:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:10:16,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:10:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 16:10:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:10:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:10:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:16,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:10:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:10:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:10:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:16,801 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:10:16,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:10:16,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286104909] [2024-11-08 16:10:16,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286104909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:10:16,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:10:16,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:10:16,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473425931] [2024-11-08 16:10:16,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:10:16,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:10:16,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:10:16,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:10:16,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:10:16,805 INFO L87 Difference]: Start difference. First operand 537 states and 894 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:10:24,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:10:24,522 INFO L93 Difference]: Finished difference Result 1299 states and 2205 transitions. [2024-11-08 16:10:24,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:10:24,523 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 5 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 [2024-11-08 16:10:24,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:10:24,533 INFO L225 Difference]: With dead ends: 1299 [2024-11-08 16:10:24,533 INFO L226 Difference]: Without dead ends: 780 [2024-11-08 16:10:24,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:10:24,539 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 1824 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 2722 mSolverCounterSat, 479 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1896 SdHoareTripleChecker+Valid, 1596 SdHoareTripleChecker+Invalid, 3201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 479 IncrementalHoareTripleChecker+Valid, 2722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:10:24,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1896 Valid, 1596 Invalid, 3201 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [479 Valid, 2722 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-08 16:10:24,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-11-08 16:10:24,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 537. [2024-11-08 16:10:24,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 423 states have (on average 1.6926713947990544) internal successors, (716), 442 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) [2024-11-08 16:10:24,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 893 transitions. [2024-11-08 16:10:24,735 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 893 transitions. Word has length 107 [2024-11-08 16:10:24,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:10:24,735 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 893 transitions. [2024-11-08 16:10:24,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:10:24,736 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 893 transitions. [2024-11-08 16:10:24,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 16:10:24,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:10:24,741 INFO L215 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] [2024-11-08 16:10:24,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:10:24,742 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:10:24,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:10:24,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1615476215, now seen corresponding path program 1 times [2024-11-08 16:10:24,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:10:24,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044517156] [2024-11-08 16:10:24,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:10:24,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:10:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:10:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-08 16:10:25,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-08 16:10:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:25,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:10:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:10:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:10:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:10:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:10:25,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:25,847 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:10:25,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:10:25,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044517156] [2024-11-08 16:10:25,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044517156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:10:25,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:10:25,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:10:25,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422584604] [2024-11-08 16:10:25,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:10:25,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:10:25,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:10:25,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:10:25,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:10:25,856 INFO L87 Difference]: Start difference. First operand 537 states and 893 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:10:33,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:10:33,341 INFO L93 Difference]: Finished difference Result 1299 states and 2204 transitions. [2024-11-08 16:10:33,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:10:33,342 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 5 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 [2024-11-08 16:10:33,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:10:33,352 INFO L225 Difference]: With dead ends: 1299 [2024-11-08 16:10:33,352 INFO L226 Difference]: Without dead ends: 780 [2024-11-08 16:10:33,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:10:33,358 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 1818 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 2720 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 1595 SdHoareTripleChecker+Invalid, 3202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 2720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:10:33,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 1595 Invalid, 3202 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [482 Valid, 2720 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-08 16:10:33,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-11-08 16:10:33,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 537. [2024-11-08 16:10:33,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 423 states have (on average 1.690307328605201) internal successors, (715), 442 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) [2024-11-08 16:10:33,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 892 transitions. [2024-11-08 16:10:33,582 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 892 transitions. Word has length 108 [2024-11-08 16:10:33,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:10:33,583 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 892 transitions. [2024-11-08 16:10:33,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:10:33,583 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 892 transitions. [2024-11-08 16:10:33,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 16:10:33,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:10:33,588 INFO L215 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] [2024-11-08 16:10:33,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:10:33,589 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:10:33,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:10:33,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1249285683, now seen corresponding path program 1 times [2024-11-08 16:10:33,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:10:33,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645921834] [2024-11-08 16:10:33,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:10:33,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:10:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:33,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:10:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:33,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:33,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 16:10:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 16:10:34,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:10:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:10:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:10:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:10:34,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:10:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:34,570 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:10:34,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:10:34,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645921834] [2024-11-08 16:10:34,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645921834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:10:34,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:10:34,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:10:34,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015858944] [2024-11-08 16:10:34,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:10:34,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:10:34,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:10:34,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:10:34,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:10:34,576 INFO L87 Difference]: Start difference. First operand 537 states and 892 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:10:42,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:10:42,390 INFO L93 Difference]: Finished difference Result 1299 states and 2203 transitions. [2024-11-08 16:10:42,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:10:42,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 5 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 [2024-11-08 16:10:42,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:10:42,399 INFO L225 Difference]: With dead ends: 1299 [2024-11-08 16:10:42,400 INFO L226 Difference]: Without dead ends: 780 [2024-11-08 16:10:42,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:10:42,405 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 1387 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1459 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 3114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:10:42,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1459 Valid, 1635 Invalid, 3114 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [343 Valid, 2771 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-08 16:10:42,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-11-08 16:10:42,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 537. [2024-11-08 16:10:42,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 423 states have (on average 1.6879432624113475) internal successors, (714), 442 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) [2024-11-08 16:10:42,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 891 transitions. [2024-11-08 16:10:42,589 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 891 transitions. Word has length 109 [2024-11-08 16:10:42,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:10:42,590 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 891 transitions. [2024-11-08 16:10:42,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:10:42,591 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 891 transitions. [2024-11-08 16:10:42,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 16:10:42,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:10:42,596 INFO L215 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] [2024-11-08 16:10:42,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:10:42,596 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:10:42,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:10:42,597 INFO L85 PathProgramCache]: Analyzing trace with hash -455668749, now seen corresponding path program 1 times [2024-11-08 16:10:42,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:10:42,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566461473] [2024-11-08 16:10:42,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:10:42,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:10:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:42,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:10:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:42,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 16:10:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 16:10:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:43,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:10:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:10:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:43,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:43,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:10:43,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:10:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:10:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:43,525 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:10:43,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:10:43,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566461473] [2024-11-08 16:10:43,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566461473] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:10:43,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:10:43,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:10:43,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629613989] [2024-11-08 16:10:43,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:10:43,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:10:43,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:10:43,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:10:43,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:10:43,528 INFO L87 Difference]: Start difference. First operand 537 states and 891 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:10:51,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:10:51,259 INFO L93 Difference]: Finished difference Result 1299 states and 2202 transitions. [2024-11-08 16:10:51,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:10:51,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 5 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 [2024-11-08 16:10:51,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:10:51,267 INFO L225 Difference]: With dead ends: 1299 [2024-11-08 16:10:51,267 INFO L226 Difference]: Without dead ends: 780 [2024-11-08 16:10:51,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:10:51,272 INFO L432 NwaCegarLoop]: 447 mSDtfsCounter, 1376 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 2774 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1666 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 2774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:10:51,273 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 1666 Invalid, 3103 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [329 Valid, 2774 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-08 16:10:51,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2024-11-08 16:10:51,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 537. [2024-11-08 16:10:51,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 423 states have (on average 1.6855791962174942) internal successors, (713), 442 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) [2024-11-08 16:10:51,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 890 transitions. [2024-11-08 16:10:51,473 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 890 transitions. Word has length 110 [2024-11-08 16:10:51,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:10:51,474 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 890 transitions. [2024-11-08 16:10:51,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:10:51,475 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 890 transitions. [2024-11-08 16:10:51,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 16:10:51,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:10:51,479 INFO L215 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] [2024-11-08 16:10:51,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:10:51,480 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:10:51,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:10:51,481 INFO L85 PathProgramCache]: Analyzing trace with hash -712631121, now seen corresponding path program 1 times [2024-11-08 16:10:51,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:10:51,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828929935] [2024-11-08 16:10:51,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:10:51,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:10:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:51,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:10:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:10:52,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 16:10:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:52,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:52,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:10:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:10:52,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:10:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:10:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:10:52,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:10:52,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:10:52,733 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:10:52,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:10:52,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828929935] [2024-11-08 16:10:52,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828929935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:10:52,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:10:52,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 16:10:52,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703154939] [2024-11-08 16:10:52,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:10:52,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:10:52,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:10:52,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:10:52,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:10:52,737 INFO L87 Difference]: Start difference. First operand 537 states and 890 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 16:11:03,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:11:03,939 INFO L93 Difference]: Finished difference Result 1276 states and 2152 transitions. [2024-11-08 16:11:03,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 16:11:03,940 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 3 states have call successors, (14), 5 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 111 [2024-11-08 16:11:03,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:11:03,948 INFO L225 Difference]: With dead ends: 1276 [2024-11-08 16:11:03,949 INFO L226 Difference]: Without dead ends: 806 [2024-11-08 16:11:03,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2024-11-08 16:11:03,954 INFO L432 NwaCegarLoop]: 437 mSDtfsCounter, 1485 mSDsluCounter, 3332 mSDsCounter, 0 mSdLazyCounter, 6791 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1558 SdHoareTripleChecker+Valid, 3769 SdHoareTripleChecker+Invalid, 7133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 6791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:11:03,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1558 Valid, 3769 Invalid, 7133 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [342 Valid, 6791 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-08 16:11:03,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-08 16:11:04,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 550. [2024-11-08 16:11:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 433 states have (on average 1.6812933025404158) internal successors, (728), 454 states have internal predecessors, (728), 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) [2024-11-08 16:11:04,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 909 transitions. [2024-11-08 16:11:04,217 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 909 transitions. Word has length 111 [2024-11-08 16:11:04,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:11:04,218 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 909 transitions. [2024-11-08 16:11:04,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 8 states have internal predecessors, (74), 3 states have call successors, (14), 5 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 16:11:04,221 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 909 transitions. [2024-11-08 16:11:04,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 16:11:04,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:11:04,229 INFO L215 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] [2024-11-08 16:11:04,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:11:04,229 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:11:04,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:11:04,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1522118578, now seen corresponding path program 1 times [2024-11-08 16:11:04,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:11:04,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974475630] [2024-11-08 16:11:04,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:11:04,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:11:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:04,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:11:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:04,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:04,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:11:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:05,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 16:11:05,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:05,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:05,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:05,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:05,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:11:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:05,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:11:05,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:05,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:05,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:05,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:11:05,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:05,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:11:05,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:05,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:11:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:05,197 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:11:05,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:11:05,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974475630] [2024-11-08 16:11:05,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974475630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:11:05,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:11:05,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:11:05,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281782732] [2024-11-08 16:11:05,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:11:05,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:11:05,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:11:05,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:11:05,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:11:05,200 INFO L87 Difference]: Start difference. First operand 550 states and 909 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:11:13,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:11:13,201 INFO L93 Difference]: Finished difference Result 1302 states and 2194 transitions. [2024-11-08 16:11:13,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:11:13,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 5 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 111 [2024-11-08 16:11:13,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:11:13,209 INFO L225 Difference]: With dead ends: 1302 [2024-11-08 16:11:13,209 INFO L226 Difference]: Without dead ends: 814 [2024-11-08 16:11:13,213 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:11:13,213 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 1015 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 2935 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 3133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 2935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:11:13,214 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 1722 Invalid, 3133 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [198 Valid, 2935 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-08 16:11:13,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-08 16:11:13,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 550. [2024-11-08 16:11:13,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 433 states have (on average 1.6697459584295613) internal successors, (723), 454 states have internal predecessors, (723), 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) [2024-11-08 16:11:13,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 904 transitions. [2024-11-08 16:11:13,462 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 904 transitions. Word has length 111 [2024-11-08 16:11:13,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:11:13,464 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 904 transitions. [2024-11-08 16:11:13,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:11:13,464 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 904 transitions. [2024-11-08 16:11:13,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-08 16:11:13,470 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:11:13,471 INFO L215 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] [2024-11-08 16:11:13,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:11:13,471 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:11:13,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:11:13,472 INFO L85 PathProgramCache]: Analyzing trace with hash -2100959438, now seen corresponding path program 1 times [2024-11-08 16:11:13,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:11:13,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147479041] [2024-11-08 16:11:13,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:11:13,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:11:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:13,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:11:13,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:13,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:13,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:11:13,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:14,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 16:11:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:14,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:14,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:14,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:14,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:14,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:11:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:14,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:11:14,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:14,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:14,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:14,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:11:14,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:14,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:11:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:14,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:11:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:14,373 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:11:14,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:11:14,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147479041] [2024-11-08 16:11:14,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147479041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:11:14,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:11:14,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:11:14,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719285008] [2024-11-08 16:11:14,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:11:14,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:11:14,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:11:14,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:11:14,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:11:14,379 INFO L87 Difference]: Start difference. First operand 550 states and 904 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:11:22,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:11:22,177 INFO L93 Difference]: Finished difference Result 1302 states and 2189 transitions. [2024-11-08 16:11:22,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:11:22,178 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (14), 5 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 112 [2024-11-08 16:11:22,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:11:22,184 INFO L225 Difference]: With dead ends: 1302 [2024-11-08 16:11:22,184 INFO L226 Difference]: Without dead ends: 814 [2024-11-08 16:11:22,187 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:11:22,188 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1009 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 2916 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1081 SdHoareTripleChecker+Valid, 1730 SdHoareTripleChecker+Invalid, 3113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 2916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:11:22,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1081 Valid, 1730 Invalid, 3113 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [197 Valid, 2916 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-08 16:11:22,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-08 16:11:22,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 550. [2024-11-08 16:11:22,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 433 states have (on average 1.6581986143187066) internal successors, (718), 454 states have internal predecessors, (718), 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) [2024-11-08 16:11:22,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 899 transitions. [2024-11-08 16:11:22,403 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 899 transitions. Word has length 112 [2024-11-08 16:11:22,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:11:22,403 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 899 transitions. [2024-11-08 16:11:22,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:11:22,404 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 899 transitions. [2024-11-08 16:11:22,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-08 16:11:22,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:11:22,409 INFO L215 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] [2024-11-08 16:11:22,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:11:22,410 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:11:22,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:11:22,410 INFO L85 PathProgramCache]: Analyzing trace with hash 2111603475, now seen corresponding path program 1 times [2024-11-08 16:11:22,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:11:22,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10165480] [2024-11-08 16:11:22,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:11:22,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:11:22,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:22,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:11:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:22,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:22,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:22,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:11:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:23,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 16:11:23,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:23,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:23,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:23,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:23,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:23,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:23,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:11:23,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:23,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:11:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:23,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:23,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:23,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:11:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:23,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:11:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:23,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:11:23,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:23,298 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:11:23,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:11:23,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10165480] [2024-11-08 16:11:23,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10165480] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:11:23,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:11:23,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:11:23,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431607212] [2024-11-08 16:11:23,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:11:23,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:11:23,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:11:23,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:11:23,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:11:23,302 INFO L87 Difference]: Start difference. First operand 550 states and 899 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:11:30,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:11:30,524 INFO L93 Difference]: Finished difference Result 1302 states and 2184 transitions. [2024-11-08 16:11:30,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:11:30,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 5 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 113 [2024-11-08 16:11:30,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:11:30,532 INFO L225 Difference]: With dead ends: 1302 [2024-11-08 16:11:30,532 INFO L226 Difference]: Without dead ends: 814 [2024-11-08 16:11:30,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:11:30,536 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1446 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 3042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:11:30,537 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1654 Invalid, 3042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [340 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-08 16:11:30,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-08 16:11:30,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 550. [2024-11-08 16:11:30,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 433 states have (on average 1.6466512702078522) internal successors, (713), 454 states have internal predecessors, (713), 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) [2024-11-08 16:11:30,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 894 transitions. [2024-11-08 16:11:30,800 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 894 transitions. Word has length 113 [2024-11-08 16:11:30,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:11:30,801 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 894 transitions. [2024-11-08 16:11:30,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:11:30,801 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 894 transitions. [2024-11-08 16:11:30,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 16:11:30,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:11:30,806 INFO L215 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] [2024-11-08 16:11:30,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:11:30,807 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:11:30,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:11:30,807 INFO L85 PathProgramCache]: Analyzing trace with hash -288161097, now seen corresponding path program 1 times [2024-11-08 16:11:30,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:11:30,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624102780] [2024-11-08 16:11:30,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:11:30,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:11:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:11:31,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:11:31,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:11:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:31,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:11:31,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:11:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:11:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:11:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:11:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:31,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:11:31,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:11:31,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624102780] [2024-11-08 16:11:31,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624102780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:11:31,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:11:31,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 16:11:31,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420580537] [2024-11-08 16:11:31,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:11:32,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:11:32,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:11:32,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:11:32,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:11:32,003 INFO L87 Difference]: Start difference. First operand 550 states and 894 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 16:11:41,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:11:41,927 INFO L93 Difference]: Finished difference Result 1279 states and 2139 transitions. [2024-11-08 16:11:41,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:11:41,927 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2024-11-08 16:11:41,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:11:41,933 INFO L225 Difference]: With dead ends: 1279 [2024-11-08 16:11:41,933 INFO L226 Difference]: Without dead ends: 806 [2024-11-08 16:11:41,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:11:41,936 INFO L432 NwaCegarLoop]: 445 mSDtfsCounter, 1838 mSDsluCounter, 2461 mSDsCounter, 0 mSdLazyCounter, 4955 mSolverCounterSat, 482 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 2906 SdHoareTripleChecker+Invalid, 5437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 482 IncrementalHoareTripleChecker+Valid, 4955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:11:41,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 2906 Invalid, 5437 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [482 Valid, 4955 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-08 16:11:41,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2024-11-08 16:11:42,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 550. [2024-11-08 16:11:42,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 433 states have (on average 1.6443418013856812) internal successors, (712), 454 states have internal predecessors, (712), 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) [2024-11-08 16:11:42,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 893 transitions. [2024-11-08 16:11:42,160 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 893 transitions. Word has length 114 [2024-11-08 16:11:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:11:42,160 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 893 transitions. [2024-11-08 16:11:42,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 16:11:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 893 transitions. [2024-11-08 16:11:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-08 16:11:42,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:11:42,165 INFO L215 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] [2024-11-08 16:11:42,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:11:42,166 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:11:42,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:11:42,166 INFO L85 PathProgramCache]: Analyzing trace with hash 238860695, now seen corresponding path program 1 times [2024-11-08 16:11:42,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:11:42,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368531358] [2024-11-08 16:11:42,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:11:42,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:11:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:42,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:11:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:42,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:42,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:11:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:42,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-08 16:11:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:42,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:42,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:42,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:42,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:11:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:42,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:11:42,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:42,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:43,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:43,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:43,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:11:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:43,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:11:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:43,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:11:43,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:43,026 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:11:43,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:11:43,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368531358] [2024-11-08 16:11:43,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368531358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:11:43,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:11:43,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:11:43,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291756978] [2024-11-08 16:11:43,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:11:43,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:11:43,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:11:43,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:11:43,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:11:43,029 INFO L87 Difference]: Start difference. First operand 550 states and 893 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:11:48,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:11:48,999 INFO L93 Difference]: Finished difference Result 1302 states and 2175 transitions. [2024-11-08 16:11:49,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:11:49,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 5 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 114 [2024-11-08 16:11:49,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:11:49,005 INFO L225 Difference]: With dead ends: 1302 [2024-11-08 16:11:49,006 INFO L226 Difference]: Without dead ends: 814 [2024-11-08 16:11:49,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:11:49,008 INFO L432 NwaCegarLoop]: 443 mSDtfsCounter, 1443 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 2666 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1515 SdHoareTripleChecker+Valid, 1654 SdHoareTripleChecker+Invalid, 3007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 2666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:11:49,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1515 Valid, 1654 Invalid, 3007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 2666 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-08 16:11:49,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 814 states. [2024-11-08 16:11:49,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 814 to 550. [2024-11-08 16:11:49,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 433 states have (on average 1.6327944572748267) internal successors, (707), 454 states have internal predecessors, (707), 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) [2024-11-08 16:11:49,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 888 transitions. [2024-11-08 16:11:49,178 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 888 transitions. Word has length 114 [2024-11-08 16:11:49,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:11:49,179 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 888 transitions. [2024-11-08 16:11:49,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:11:49,179 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 888 transitions. [2024-11-08 16:11:49,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 16:11:49,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:11:49,182 INFO L215 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] [2024-11-08 16:11:49,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:11:49,183 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:11:49,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:11:49,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1846954806, now seen corresponding path program 1 times [2024-11-08 16:11:49,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:11:49,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68001706] [2024-11-08 16:11:49,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:11:49,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:11:49,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:49,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:11:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:49,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:49,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:11:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:49,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 16:11:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:49,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:49,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:49,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:49,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:49,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:49,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:11:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:49,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:11:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:49,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:49,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:50,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:11:50,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:50,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:11:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:50,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:11:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:50,023 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:11:50,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:11:50,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68001706] [2024-11-08 16:11:50,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68001706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:11:50,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:11:50,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 16:11:50,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642804559] [2024-11-08 16:11:50,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:11:50,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:11:50,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:11:50,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:11:50,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:11:50,026 INFO L87 Difference]: Start difference. First operand 550 states and 888 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 16:11:58,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:11:58,598 INFO L93 Difference]: Finished difference Result 1288 states and 2143 transitions. [2024-11-08 16:11:58,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:11:58,598 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2024-11-08 16:11:58,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:11:58,604 INFO L225 Difference]: With dead ends: 1288 [2024-11-08 16:11:58,604 INFO L226 Difference]: Without dead ends: 812 [2024-11-08 16:11:58,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:11:58,607 INFO L432 NwaCegarLoop]: 448 mSDtfsCounter, 972 mSDsluCounter, 2591 mSDsCounter, 0 mSdLazyCounter, 5089 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 3039 SdHoareTripleChecker+Invalid, 5287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 5089 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:11:58,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 3039 Invalid, 5287 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [198 Valid, 5089 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-08 16:11:58,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2024-11-08 16:11:58,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 553. [2024-11-08 16:11:58,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 436 states have (on average 1.6261467889908257) internal successors, (709), 457 states have internal predecessors, (709), 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) [2024-11-08 16:11:58,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 890 transitions. [2024-11-08 16:11:58,811 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 890 transitions. Word has length 115 [2024-11-08 16:11:58,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:11:58,812 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 890 transitions. [2024-11-08 16:11:58,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 16:11:58,812 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 890 transitions. [2024-11-08 16:11:58,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-08 16:11:58,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:11:58,816 INFO L215 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] [2024-11-08 16:11:58,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:11:58,816 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:11:58,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:11:58,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1299797544, now seen corresponding path program 1 times [2024-11-08 16:11:58,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:11:58,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102413020] [2024-11-08 16:11:58,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:11:58,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:11:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:11:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:11:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-08 16:11:59,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:59,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:11:59,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:11:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:11:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:11:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:11:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:11:59,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:11:59,612 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:11:59,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:11:59,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102413020] [2024-11-08 16:11:59,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102413020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:11:59,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:11:59,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:11:59,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40408160] [2024-11-08 16:11:59,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:11:59,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:11:59,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:11:59,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:11:59,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:11:59,619 INFO L87 Difference]: Start difference. First operand 553 states and 890 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:12:06,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:12:06,073 INFO L93 Difference]: Finished difference Result 1311 states and 2175 transitions. [2024-11-08 16:12:06,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:12:06,074 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 5 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 115 [2024-11-08 16:12:06,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:12:06,079 INFO L225 Difference]: With dead ends: 1311 [2024-11-08 16:12:06,079 INFO L226 Difference]: Without dead ends: 820 [2024-11-08 16:12:06,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:12:06,081 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 993 mSDsluCounter, 1280 mSDsCounter, 0 mSdLazyCounter, 2820 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1065 SdHoareTripleChecker+Valid, 1722 SdHoareTripleChecker+Invalid, 3019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 2820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:12:06,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1065 Valid, 1722 Invalid, 3019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 2820 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-08 16:12:06,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-11-08 16:12:06,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 553. [2024-11-08 16:12:06,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 436 states have (on average 1.614678899082569) internal successors, (704), 457 states have internal predecessors, (704), 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) [2024-11-08 16:12:06,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 885 transitions. [2024-11-08 16:12:06,283 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 885 transitions. Word has length 115 [2024-11-08 16:12:06,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:12:06,284 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 885 transitions. [2024-11-08 16:12:06,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:12:06,284 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 885 transitions. [2024-11-08 16:12:06,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 16:12:06,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:12:06,288 INFO L215 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] [2024-11-08 16:12:06,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:12:06,288 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:12:06,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:12:06,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1859794460, now seen corresponding path program 1 times [2024-11-08 16:12:06,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:12:06,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525158830] [2024-11-08 16:12:06,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:06,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:12:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:06,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:12:06,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:06,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:06,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:12:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:06,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 16:12:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:07,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:07,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:07,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:07,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:07,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:12:07,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:07,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:12:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:07,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:07,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:07,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:07,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:12:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:07,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:12:07,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:07,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:12:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:07,087 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:12:07,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:12:07,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525158830] [2024-11-08 16:12:07,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525158830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:12:07,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:12:07,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:12:07,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477158594] [2024-11-08 16:12:07,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:12:07,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:12:07,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:12:07,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:12:07,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:12:07,090 INFO L87 Difference]: Start difference. First operand 553 states and 885 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:12:13,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:12:13,852 INFO L93 Difference]: Finished difference Result 1292 states and 2140 transitions. [2024-11-08 16:12:13,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:12:13,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 5 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 [2024-11-08 16:12:13,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:12:13,856 INFO L225 Difference]: With dead ends: 1292 [2024-11-08 16:12:13,856 INFO L226 Difference]: Without dead ends: 816 [2024-11-08 16:12:13,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:12:13,858 INFO L432 NwaCegarLoop]: 438 mSDtfsCounter, 958 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 2771 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 1714 SdHoareTripleChecker+Invalid, 2968 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 2771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:12:13,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1030 Valid, 1714 Invalid, 2968 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 2771 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-08 16:12:13,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-08 16:12:14,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 557. [2024-11-08 16:12:14,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 440 states have (on average 1.606818181818182) internal successors, (707), 461 states have internal predecessors, (707), 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) [2024-11-08 16:12:14,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 888 transitions. [2024-11-08 16:12:14,065 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 888 transitions. Word has length 116 [2024-11-08 16:12:14,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:12:14,066 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 888 transitions. [2024-11-08 16:12:14,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:12:14,066 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 888 transitions. [2024-11-08 16:12:14,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-08 16:12:14,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:12:14,070 INFO L215 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] [2024-11-08 16:12:14,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:12:14,070 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:12:14,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:12:14,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1071769604, now seen corresponding path program 1 times [2024-11-08 16:12:14,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:12:14,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218424024] [2024-11-08 16:12:14,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:14,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:12:14,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:12:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:12:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-08 16:12:14,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:12:14,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:12:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:12:14,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:12:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:12:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:12:14,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:12:14,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218424024] [2024-11-08 16:12:14,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218424024] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:12:14,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:12:14,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:12:14,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337201109] [2024-11-08 16:12:14,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:12:14,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:12:14,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:12:14,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:12:14,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:12:14,760 INFO L87 Difference]: Start difference. First operand 557 states and 888 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:12:20,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:12:20,632 INFO L93 Difference]: Finished difference Result 1347 states and 2203 transitions. [2024-11-08 16:12:20,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:12:20,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 5 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 [2024-11-08 16:12:20,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:12:20,638 INFO L225 Difference]: With dead ends: 1347 [2024-11-08 16:12:20,638 INFO L226 Difference]: Without dead ends: 788 [2024-11-08 16:12:20,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:12:20,641 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 1350 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 2651 mSolverCounterSat, 330 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 2981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 330 IncrementalHoareTripleChecker+Valid, 2651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:12:20,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 1663 Invalid, 2981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [330 Valid, 2651 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-08 16:12:20,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2024-11-08 16:12:20,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 538. [2024-11-08 16:12:20,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 424 states have (on average 1.615566037735849) internal successors, (685), 443 states have internal predecessors, (685), 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) [2024-11-08 16:12:20,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 862 transitions. [2024-11-08 16:12:20,819 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 862 transitions. Word has length 116 [2024-11-08 16:12:20,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:12:20,820 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 862 transitions. [2024-11-08 16:12:20,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:12:20,820 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 862 transitions. [2024-11-08 16:12:20,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-08 16:12:20,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:12:20,823 INFO L215 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] [2024-11-08 16:12:20,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:12:20,824 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:12:20,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:12:20,824 INFO L85 PathProgramCache]: Analyzing trace with hash 506579835, now seen corresponding path program 1 times [2024-11-08 16:12:20,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:12:20,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481246588] [2024-11-08 16:12:20,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:20,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:12:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:12:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:12:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 16:12:21,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:12:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,589 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:12:21,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:21,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:12:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:12:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:12:21,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:21,624 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:12:21,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:12:21,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481246588] [2024-11-08 16:12:21,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481246588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:12:21,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:12:21,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 16:12:21,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495605058] [2024-11-08 16:12:21,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:12:21,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:12:21,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:12:21,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:12:21,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:12:21,628 INFO L87 Difference]: Start difference. First operand 538 states and 862 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 16:12:30,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:12:30,042 INFO L93 Difference]: Finished difference Result 1271 states and 2105 transitions. [2024-11-08 16:12:30,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:12:30,043 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 117 [2024-11-08 16:12:30,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:12:30,049 INFO L225 Difference]: With dead ends: 1271 [2024-11-08 16:12:30,049 INFO L226 Difference]: Without dead ends: 798 [2024-11-08 16:12:30,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:12:30,052 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 940 mSDsluCounter, 2586 mSDsCounter, 0 mSdLazyCounter, 4977 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1012 SdHoareTripleChecker+Valid, 3032 SdHoareTripleChecker+Invalid, 5175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 4977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:12:30,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1012 Valid, 3032 Invalid, 5175 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [198 Valid, 4977 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-08 16:12:30,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 798 states. [2024-11-08 16:12:30,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 798 to 543. [2024-11-08 16:12:30,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 429 states have (on average 1.6083916083916083) internal successors, (690), 448 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) [2024-11-08 16:12:30,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 867 transitions. [2024-11-08 16:12:30,282 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 867 transitions. Word has length 117 [2024-11-08 16:12:30,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:12:30,283 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 867 transitions. [2024-11-08 16:12:30,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-08 16:12:30,283 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 867 transitions. [2024-11-08 16:12:30,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 16:12:30,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:12:30,287 INFO L215 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] [2024-11-08 16:12:30,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:12:30,288 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:12:30,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:12:30,289 INFO L85 PathProgramCache]: Analyzing trace with hash 404650319, now seen corresponding path program 1 times [2024-11-08 16:12:30,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:12:30,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687022057] [2024-11-08 16:12:30,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:30,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:12:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:12:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:12:30,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:12:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:30,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:12:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:12:30,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:30,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:30,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:12:30,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:12:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:12:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:30,999 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:12:30,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:12:31,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687022057] [2024-11-08 16:12:31,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687022057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:12:31,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:12:31,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:12:31,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297570419] [2024-11-08 16:12:31,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:12:31,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:12:31,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:12:31,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:12:31,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:12:31,002 INFO L87 Difference]: Start difference. First operand 543 states and 867 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:12:38,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:12:38,003 INFO L93 Difference]: Finished difference Result 1283 states and 2116 transitions. [2024-11-08 16:12:38,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:12:38,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (14), 5 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 118 [2024-11-08 16:12:38,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:12:38,007 INFO L225 Difference]: With dead ends: 1283 [2024-11-08 16:12:38,007 INFO L226 Difference]: Without dead ends: 789 [2024-11-08 16:12:38,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:12:38,009 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 954 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 2747 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 1716 SdHoareTripleChecker+Invalid, 2945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 2747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:12:38,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 1716 Invalid, 2945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 2747 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-08 16:12:38,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2024-11-08 16:12:38,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 543. [2024-11-08 16:12:38,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 429 states have (on average 1.599067599067599) internal successors, (686), 448 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) [2024-11-08 16:12:38,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 863 transitions. [2024-11-08 16:12:38,245 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 863 transitions. Word has length 118 [2024-11-08 16:12:38,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:12:38,246 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 863 transitions. [2024-11-08 16:12:38,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-08 16:12:38,246 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 863 transitions. [2024-11-08 16:12:38,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-08 16:12:38,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:12:38,249 INFO L215 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] [2024-11-08 16:12:38,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:12:38,250 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:12:38,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:12:38,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1399344017, now seen corresponding path program 1 times [2024-11-08 16:12:38,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:12:38,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203627912] [2024-11-08 16:12:38,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:38,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:12:38,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:38,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:12:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:38,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:38,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:12:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:38,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:12:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:39,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:39,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:39,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:39,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:39,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 16:12:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:39,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 16:12:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:39,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:39,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:39,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:39,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 16:12:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:39,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 16:12:39,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:39,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 16:12:39,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:39,347 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:12:39,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:12:39,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203627912] [2024-11-08 16:12:39,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203627912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:12:39,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:12:39,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 16:12:39,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628136233] [2024-11-08 16:12:39,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:12:39,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 16:12:39,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:12:39,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 16:12:39,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:12:39,350 INFO L87 Difference]: Start difference. First operand 543 states and 863 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (13), 7 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 16:12:50,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:12:50,971 INFO L93 Difference]: Finished difference Result 1260 states and 2127 transitions. [2024-11-08 16:12:50,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 16:12:50,972 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (13), 7 states have call predecessors, (13), 4 states have call successors, (13) Word has length 118 [2024-11-08 16:12:50,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:12:50,975 INFO L225 Difference]: With dead ends: 1260 [2024-11-08 16:12:50,975 INFO L226 Difference]: Without dead ends: 795 [2024-11-08 16:12:50,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=156, Invalid=546, Unknown=0, NotChecked=0, Total=702 [2024-11-08 16:12:50,977 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 2616 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 7785 mSolverCounterSat, 884 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2616 SdHoareTripleChecker+Valid, 2582 SdHoareTripleChecker+Invalid, 8669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 884 IncrementalHoareTripleChecker+Valid, 7785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:12:50,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2616 Valid, 2582 Invalid, 8669 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [884 Valid, 7785 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-08 16:12:50,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2024-11-08 16:12:51,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 552. [2024-11-08 16:12:51,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 436 states have (on average 1.5894495412844036) internal successors, (693), 454 states have internal predecessors, (693), 91 states have call successors, (91), 23 states have call predecessors, (91), 24 states have return successors, (105), 87 states have call predecessors, (105), 86 states have call successors, (105) [2024-11-08 16:12:51,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 889 transitions. [2024-11-08 16:12:51,154 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 889 transitions. Word has length 118 [2024-11-08 16:12:51,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:12:51,154 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 889 transitions. [2024-11-08 16:12:51,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (13), 7 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 16:12:51,155 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 889 transitions. [2024-11-08 16:12:51,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-08 16:12:51,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:12:51,158 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:12:51,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:12:51,158 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:12:51,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:12:51,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1625874081, now seen corresponding path program 1 times [2024-11-08 16:12:51,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:12:51,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957486603] [2024-11-08 16:12:51,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:51,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:12:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:51,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:12:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:51,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:51,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:12:51,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:51,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:12:51,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:51,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:51,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:51,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:51,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:51,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 16:12:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:51,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:12:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:51,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:52,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:52,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 16:12:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:52,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 16:12:52,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:52,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 16:12:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:52,110 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 16:12:52,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:12:52,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957486603] [2024-11-08 16:12:52,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957486603] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:12:52,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738447790] [2024-11-08 16:12:52,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:52,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:12:52,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:12:52,114 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:12:52,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:12:52,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:52,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:12:52,560 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:12:52,607 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:12:52,608 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:12:52,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738447790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:12:52,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:12:52,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2024-11-08 16:12:52,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263542611] [2024-11-08 16:12:52,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:12:52,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:12:52,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:12:52,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:12:52,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:12:52,611 INFO L87 Difference]: Start difference. First operand 552 states and 889 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) [2024-11-08 16:12:53,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:12:53,182 INFO L93 Difference]: Finished difference Result 1491 states and 2492 transitions. [2024-11-08 16:12:53,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:12:53,182 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 119 [2024-11-08 16:12:53,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:12:53,193 INFO L225 Difference]: With dead ends: 1491 [2024-11-08 16:12:53,193 INFO L226 Difference]: Without dead ends: 1017 [2024-11-08 16:12:53,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:12:53,196 INFO L432 NwaCegarLoop]: 966 mSDtfsCounter, 835 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 1732 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 [2024-11-08 16:12:53,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 1732 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:12:53,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2024-11-08 16:12:53,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 1015. [2024-11-08 16:12:53,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 797 states have (on average 1.6286072772898368) internal successors, (1298), 828 states have internal predecessors, (1298), 172 states have call successors, (172), 41 states have call predecessors, (172), 45 states have return successors, (215), 171 states have call predecessors, (215), 167 states have call successors, (215) [2024-11-08 16:12:53,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1685 transitions. [2024-11-08 16:12:53,717 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1685 transitions. Word has length 119 [2024-11-08 16:12:53,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:12:53,718 INFO L471 AbstractCegarLoop]: Abstraction has 1015 states and 1685 transitions. [2024-11-08 16:12:53,719 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) [2024-11-08 16:12:53,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1685 transitions. [2024-11-08 16:12:53,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 16:12:53,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:12:53,722 INFO L215 NwaCegarLoop]: trace histogram [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, 1] [2024-11-08 16:12:53,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 16:12:53,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:12:53,923 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:12:53,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:12:53,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1137383806, now seen corresponding path program 1 times [2024-11-08 16:12:53,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:12:53,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656429803] [2024-11-08 16:12:53,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:53,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:12:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:12:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:12:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:12:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:54,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 16:12:54,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:12:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:54,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 16:12:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 16:12:54,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:54,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 16:12:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:55,002 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 16:12:55,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:12:55,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656429803] [2024-11-08 16:12:55,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656429803] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:12:55,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315720052] [2024-11-08 16:12:55,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:55,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:12:55,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:12:55,006 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:12:55,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:12:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:55,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:12:55,423 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:12:55,460 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:12:55,461 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:12:55,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315720052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:12:55,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:12:55,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2024-11-08 16:12:55,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068574378] [2024-11-08 16:12:55,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:12:55,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:12:55,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:12:55,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:12:55,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:12:55,463 INFO L87 Difference]: Start difference. First operand 1015 states and 1685 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) [2024-11-08 16:12:56,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:12:56,215 INFO L93 Difference]: Finished difference Result 2882 states and 4898 transitions. [2024-11-08 16:12:56,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:12:56,216 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 120 [2024-11-08 16:12:56,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:12:56,231 INFO L225 Difference]: With dead ends: 2882 [2024-11-08 16:12:56,231 INFO L226 Difference]: Without dead ends: 1945 [2024-11-08 16:12:56,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:12:56,236 INFO L432 NwaCegarLoop]: 925 mSDtfsCounter, 834 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1694 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 [2024-11-08 16:12:56,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 1694 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:12:56,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2024-11-08 16:12:56,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1942. [2024-11-08 16:12:56,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1942 states, 1520 states have (on average 1.6506578947368422) internal successors, (2509), 1577 states have internal predecessors, (2509), 334 states have call successors, (334), 77 states have call predecessors, (334), 87 states have return successors, (447), 339 states have call predecessors, (447), 329 states have call successors, (447) [2024-11-08 16:12:56,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1942 states to 1942 states and 3290 transitions. [2024-11-08 16:12:56,884 INFO L78 Accepts]: Start accepts. Automaton has 1942 states and 3290 transitions. Word has length 120 [2024-11-08 16:12:56,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:12:56,885 INFO L471 AbstractCegarLoop]: Abstraction has 1942 states and 3290 transitions. [2024-11-08 16:12:56,885 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) [2024-11-08 16:12:56,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1942 states and 3290 transitions. [2024-11-08 16:12:56,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-08 16:12:56,887 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:12:56,887 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1] [2024-11-08 16:12:56,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:12:57,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:12:57,088 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:12:57,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:12:57,089 INFO L85 PathProgramCache]: Analyzing trace with hash 899036289, now seen corresponding path program 1 times [2024-11-08 16:12:57,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:12:57,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557531742] [2024-11-08 16:12:57,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:57,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:12:57,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:12:57,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:12:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:12:57,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:57,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 16:12:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:12:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:12:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 16:12:57,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 16:12:57,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:57,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 16:12:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:58,003 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 16:12:58,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:12:58,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557531742] [2024-11-08 16:12:58,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557531742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:12:58,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807112035] [2024-11-08 16:12:58,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:58,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:12:58,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:12:58,007 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:12:58,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:12:58,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:58,439 INFO L255 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:12:58,443 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:12:58,491 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:12:58,491 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:12:58,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807112035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:12:58,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:12:58,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2024-11-08 16:12:58,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333914552] [2024-11-08 16:12:58,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:12:58,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:12:58,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:12:58,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:12:58,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:12:58,494 INFO L87 Difference]: Start difference. First operand 1942 states and 3290 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2024-11-08 16:12:59,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:12:59,689 INFO L93 Difference]: Finished difference Result 5665 states and 9764 transitions. [2024-11-08 16:12:59,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:12:59,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 [2024-11-08 16:12:59,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:12:59,716 INFO L225 Difference]: With dead ends: 5665 [2024-11-08 16:12:59,716 INFO L226 Difference]: Without dead ends: 3801 [2024-11-08 16:12:59,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:12:59,725 INFO L432 NwaCegarLoop]: 913 mSDtfsCounter, 833 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 1684 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 [2024-11-08 16:12:59,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 1684 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:12:59,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3801 states. [2024-11-08 16:13:00,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3801 to 3797. [2024-11-08 16:13:01,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3797 states, 2967 states have (on average 1.661948095719582) internal successors, (4931), 3076 states have internal predecessors, (4931), 658 states have call successors, (658), 149 states have call predecessors, (658), 171 states have return successors, (947), 675 states have call predecessors, (947), 653 states have call successors, (947) [2024-11-08 16:13:01,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3797 states to 3797 states and 6536 transitions. [2024-11-08 16:13:01,028 INFO L78 Accepts]: Start accepts. Automaton has 3797 states and 6536 transitions. Word has length 121 [2024-11-08 16:13:01,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:13:01,029 INFO L471 AbstractCegarLoop]: Abstraction has 3797 states and 6536 transitions. [2024-11-08 16:13:01,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2024-11-08 16:13:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 3797 states and 6536 transitions. [2024-11-08 16:13:01,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-08 16:13:01,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:13:01,033 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1] [2024-11-08 16:13:01,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 16:13:01,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-08 16:13:01,234 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:13:01,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:13:01,234 INFO L85 PathProgramCache]: Analyzing trace with hash 2100201760, now seen corresponding path program 1 times [2024-11-08 16:13:01,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:13:01,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888634974] [2024-11-08 16:13:01,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:13:01,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:13:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:01,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:13:01,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:01,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:01,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:13:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:01,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:13:01,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:01,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:02,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:02,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:02,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 16:13:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:02,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:13:02,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:02,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:02,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:02,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:02,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-08 16:13:02,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:02,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 16:13:02,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:02,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 16:13:02,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:02,154 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 16:13:02,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:13:02,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888634974] [2024-11-08 16:13:02,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888634974] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:13:02,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701486625] [2024-11-08 16:13:02,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:13:02,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:13:02,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:13:02,158 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:13:02,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:13:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:02,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:13:02,594 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:13:02,656 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:13:02,657 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:13:02,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701486625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:13:02,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:13:02,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2024-11-08 16:13:02,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433157226] [2024-11-08 16:13:02,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:13:02,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:13:02,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:13:02,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:13:02,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:13:02,662 INFO L87 Difference]: Start difference. First operand 3797 states and 6536 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-08 16:13:05,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:13:05,470 INFO L93 Difference]: Finished difference Result 11232 states and 19673 transitions. [2024-11-08 16:13:05,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:13:05,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 122 [2024-11-08 16:13:05,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:13:05,526 INFO L225 Difference]: With dead ends: 11232 [2024-11-08 16:13:05,527 INFO L226 Difference]: Without dead ends: 7513 [2024-11-08 16:13:05,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:13:05,546 INFO L432 NwaCegarLoop]: 943 mSDtfsCounter, 831 mSDsluCounter, 775 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1718 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 [2024-11-08 16:13:05,546 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1718 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:13:05,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7513 states. [2024-11-08 16:13:08,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7513 to 7508. [2024-11-08 16:13:08,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7508 states, 5862 states have (on average 1.6671784373933811) internal successors, (9773), 6075 states have internal predecessors, (9773), 1306 states have call successors, (1306), 293 states have call predecessors, (1306), 339 states have return successors, (2067), 1347 states have call predecessors, (2067), 1301 states have call successors, (2067) [2024-11-08 16:13:08,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7508 states to 7508 states and 13146 transitions. [2024-11-08 16:13:08,353 INFO L78 Accepts]: Start accepts. Automaton has 7508 states and 13146 transitions. Word has length 122 [2024-11-08 16:13:08,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:13:08,354 INFO L471 AbstractCegarLoop]: Abstraction has 7508 states and 13146 transitions. [2024-11-08 16:13:08,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-08 16:13:08,355 INFO L276 IsEmpty]: Start isEmpty. Operand 7508 states and 13146 transitions. [2024-11-08 16:13:08,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-08 16:13:08,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:13:08,359 INFO L215 NwaCegarLoop]: trace histogram [2, 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, 1] [2024-11-08 16:13:08,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 16:13:08,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-08 16:13:08,564 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:13:08,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:13:08,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1604433691, now seen corresponding path program 1 times [2024-11-08 16:13:08,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:13:08,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712751906] [2024-11-08 16:13:08,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:13:08,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:13:08,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:08,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:13:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:08,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:08,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:13:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:09,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:13:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:09,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:09,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:09,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:09,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:09,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:09,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 16:13:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:09,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:13:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:09,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:09,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:09,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:09,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-08 16:13:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:09,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-08 16:13:09,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:09,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-08 16:13:09,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:09,500 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 16:13:09,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:13:09,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712751906] [2024-11-08 16:13:09,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712751906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:13:09,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:13:09,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-08 16:13:09,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344059067] [2024-11-08 16:13:09,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:13:09,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 16:13:09,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:13:09,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 16:13:09,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-08 16:13:09,503 INFO L87 Difference]: Start difference. First operand 7508 states and 13146 transitions. Second operand has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 9 states have internal predecessors, (86), 4 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (13), 7 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 16:13:41,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:13:41,970 INFO L93 Difference]: Finished difference Result 30213 states and 62962 transitions. [2024-11-08 16:13:41,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-08 16:13:41,971 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 9 states have internal predecessors, (86), 4 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (13), 7 states have call predecessors, (13), 4 states have call successors, (13) Word has length 124 [2024-11-08 16:13:41,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:13:42,228 INFO L225 Difference]: With dead ends: 30213 [2024-11-08 16:13:42,228 INFO L226 Difference]: Without dead ends: 22783 [2024-11-08 16:13:42,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=283, Invalid=1199, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 16:13:42,335 INFO L432 NwaCegarLoop]: 904 mSDtfsCounter, 6298 mSDsluCounter, 5859 mSDsCounter, 0 mSdLazyCounter, 16394 mSolverCounterSat, 1986 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6298 SdHoareTripleChecker+Valid, 6763 SdHoareTripleChecker+Invalid, 18380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1986 IncrementalHoareTripleChecker+Valid, 16394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-08 16:13:42,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6298 Valid, 6763 Invalid, 18380 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1986 Valid, 16394 Invalid, 0 Unknown, 0 Unchecked, 15.3s Time] [2024-11-08 16:13:42,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22783 states. [2024-11-08 16:13:49,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22783 to 17706. [2024-11-08 16:13:49,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17706 states, 13584 states have (on average 1.6458333333333333) internal successors, (22357), 14148 states have internal predecessors, (22357), 3288 states have call successors, (3288), 582 states have call predecessors, (3288), 833 states have return successors, (7298), 3441 states have call predecessors, (7298), 3283 states have call successors, (7298) [2024-11-08 16:13:49,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17706 states to 17706 states and 32943 transitions. [2024-11-08 16:13:49,878 INFO L78 Accepts]: Start accepts. Automaton has 17706 states and 32943 transitions. Word has length 124 [2024-11-08 16:13:49,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:13:49,878 INFO L471 AbstractCegarLoop]: Abstraction has 17706 states and 32943 transitions. [2024-11-08 16:13:49,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.733333333333333) internal successors, (86), 9 states have internal predecessors, (86), 4 states have call successors, (14), 5 states have call predecessors, (14), 5 states have return successors, (13), 7 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-08 16:13:49,879 INFO L276 IsEmpty]: Start isEmpty. Operand 17706 states and 32943 transitions. [2024-11-08 16:13:49,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-08 16:13:49,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:13:49,886 INFO L215 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, 1, 1, 1, 1] [2024-11-08 16:13:49,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 16:13:49,886 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:13:49,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:13:49,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1071697889, now seen corresponding path program 1 times [2024-11-08 16:13:49,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:13:49,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567859115] [2024-11-08 16:13:49,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:13:49,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:13:49,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:13:50,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:13:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 16:13:50,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:50,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:50,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 16:13:50,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 16:13:50,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:50,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:13:50,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 16:13:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 16:13:50,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-08 16:13:50,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:50,772 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 16:13:50,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:13:50,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567859115] [2024-11-08 16:13:50,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567859115] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:13:50,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070777953] [2024-11-08 16:13:50,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:13:50,777 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:13:50,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:13:50,779 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:13:50,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:13:51,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:51,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 16:13:51,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:13:51,281 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-08 16:13:51,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:13:51,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070777953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:13:51,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:13:51,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2024-11-08 16:13:51,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068470579] [2024-11-08 16:13:51,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:13:51,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:13:51,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:13:51,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:13:51,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:13:51,285 INFO L87 Difference]: Start difference. First operand 17706 states and 32943 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2024-11-08 16:14:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:06,114 INFO L93 Difference]: Finished difference Result 52945 states and 103926 transitions. [2024-11-08 16:14:06,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:06,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 125 [2024-11-08 16:14:06,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:06,481 INFO L225 Difference]: With dead ends: 52945 [2024-11-08 16:14:06,481 INFO L226 Difference]: Without dead ends: 35313 [2024-11-08 16:14:06,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:14:06,598 INFO L432 NwaCegarLoop]: 963 mSDtfsCounter, 829 mSDsluCounter, 777 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 1740 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 [2024-11-08 16:14:06,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [829 Valid, 1740 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:14:06,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35313 states. [2024-11-08 16:14:20,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35313 to 35307. [2024-11-08 16:14:20,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35307 states, 27084 states have (on average 1.6441810663122138) internal successors, (44531), 28204 states have internal predecessors, (44531), 6564 states have call successors, (6564), 1158 states have call predecessors, (6564), 1658 states have return successors, (18142), 6876 states have call predecessors, (18142), 6559 states have call successors, (18142) [2024-11-08 16:14:21,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35307 states to 35307 states and 69237 transitions. [2024-11-08 16:14:21,196 INFO L78 Accepts]: Start accepts. Automaton has 35307 states and 69237 transitions. Word has length 125 [2024-11-08 16:14:21,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:21,199 INFO L471 AbstractCegarLoop]: Abstraction has 35307 states and 69237 transitions. [2024-11-08 16:14:21,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2024-11-08 16:14:21,200 INFO L276 IsEmpty]: Start isEmpty. Operand 35307 states and 69237 transitions. [2024-11-08 16:14:21,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-08 16:14:21,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:21,293 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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] [2024-11-08 16:14:21,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 16:14:21,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80b5b790-702b-404f-ae4d-7f4c265ee262/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-08 16:14:21,494 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:21,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:21,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1387894469, now seen corresponding path program 1 times [2024-11-08 16:14:21,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:21,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461525338] [2024-11-08 16:14:21,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:21,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:21,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:21,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 16:14:21,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:21,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 16:14:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:21,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 16:14:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat