./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1 --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 a8dba55a6053d72f9111ac5cd147f9f45da0f79494b1facfa57c6480910007fb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:35:30,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:35:30,082 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 15:35:30,086 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:35:30,087 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:35:30,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:35:30,108 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:35:30,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:35:30,109 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:35:30,109 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:35:30,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:35:30,109 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:35:30,110 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:35:30,110 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:35:30,110 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:35:30,110 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:35:30,110 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:35:30,110 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 15:35:30,110 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:35:30,111 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 15:35:30,111 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:35:30,111 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:35:30,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:35:30,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:35:30,111 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 15:35:30,111 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:35:30,111 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:35:30,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:35:30,112 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:35:30,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:35:30,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:35:30,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:35:30,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:35:30,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:35:30,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:35:30,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:35:30,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:35:30,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:35:30,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:35:30,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:35:30,113 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:35:30,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:35:30,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:35:30,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:35:30,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:35:30,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:35:30,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:35:30,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:35:30,114 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1 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 -> a8dba55a6053d72f9111ac5cd147f9f45da0f79494b1facfa57c6480910007fb [2024-12-02 15:35:30,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:35:30,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:35:30,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:35:30,344 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:35:30,345 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:35:30,346 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/elevator_spec2_product31.cil.c [2024-12-02 15:35:32,960 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/data/888c5a90c/94bc06250e1d4116a26d334fbac1234e/FLAG4a75a4e76 [2024-12-02 15:35:33,256 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:35:33,257 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/sv-benchmarks/c/product-lines/elevator_spec2_product31.cil.c [2024-12-02 15:35:33,274 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/data/888c5a90c/94bc06250e1d4116a26d334fbac1234e/FLAG4a75a4e76 [2024-12-02 15:35:33,543 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/data/888c5a90c/94bc06250e1d4116a26d334fbac1234e [2024-12-02 15:35:33,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:35:33,546 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:35:33,548 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:35:33,548 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:35:33,551 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:35:33,551 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:35:33" (1/1) ... [2024-12-02 15:35:33,552 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58d45380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:33, skipping insertion in model container [2024-12-02 15:35:33,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:35:33" (1/1) ... [2024-12-02 15:35:33,593 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:35:33,982 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_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/sv-benchmarks/c/product-lines/elevator_spec2_product31.cil.c[64450,64463] [2024-12-02 15:35:34,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:35:34,034 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:35:34,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2024-12-02 15:35:34,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [716] [2024-12-02 15:35:34,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [837] [2024-12-02 15:35:34,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1024] [2024-12-02 15:35:34,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1121] [2024-12-02 15:35:34,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1476] [2024-12-02 15:35:34,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3091] [2024-12-02 15:35:34,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3126] [2024-12-02 15:35:34,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3135] [2024-12-02 15:35:34,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3501] [2024-12-02 15:35:34,123 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_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/sv-benchmarks/c/product-lines/elevator_spec2_product31.cil.c[64450,64463] [2024-12-02 15:35:34,143 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:35:34,162 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:35:34,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34 WrapperNode [2024-12-02 15:35:34,162 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:35:34,163 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:35:34,163 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:35:34,163 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:35:34,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,184 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,220 INFO L138 Inliner]: procedures = 97, calls = 349, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 964 [2024-12-02 15:35:34,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:35:34,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:35:34,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:35:34,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:35:34,230 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,259 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-12-02 15:35:34,259 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,259 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,277 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,280 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,297 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:35:34,312 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:35:34,312 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:35:34,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:35:34,313 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (1/1) ... [2024-12-02 15:35:34,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:35:34,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:35:34,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:35:34,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:35:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-12-02 15:35:34,365 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-12-02 15:35:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-12-02 15:35:34,365 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-12-02 15:35:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-12-02 15:35:34,365 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-12-02 15:35:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2024-12-02 15:35:34,365 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2024-12-02 15:35:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-12-02 15:35:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-12-02 15:35:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-12-02 15:35:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-12-02 15:35:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-12-02 15:35:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-12-02 15:35:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-12-02 15:35:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-12-02 15:35:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2024-12-02 15:35:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2024-12-02 15:35:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-12-02 15:35:34,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-12-02 15:35:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-12-02 15:35:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-12-02 15:35:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:35:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-12-02 15:35:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2024-12-02 15:35:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-12-02 15:35:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-12-02 15:35:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-12-02 15:35:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-12-02 15:35:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-12-02 15:35:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-12-02 15:35:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-12-02 15:35:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-12-02 15:35:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-12-02 15:35:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-12-02 15:35:34,367 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-12-02 15:35:34,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-12-02 15:35:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-12-02 15:35:34,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-12-02 15:35:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-12-02 15:35:34,368 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-12-02 15:35:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-12-02 15:35:34,368 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-12-02 15:35:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-12-02 15:35:34,368 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-12-02 15:35:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-12-02 15:35:34,368 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-12-02 15:35:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-12-02 15:35:34,368 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-12-02 15:35:34,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 15:35:34,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 15:35:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 15:35:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 15:35:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 15:35:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 15:35:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 15:35:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-12-02 15:35:34,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-12-02 15:35:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:35:34,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:35:34,370 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-12-02 15:35:34,370 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-12-02 15:35:34,542 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:35:34,544 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:35:35,637 INFO L? ?]: Removed 483 outVars from TransFormulas that were not future-live. [2024-12-02 15:35:35,637 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:35:35,659 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:35:35,659 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 15:35:35,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:35:35 BoogieIcfgContainer [2024-12-02 15:35:35,660 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:35:35,662 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:35:35,662 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:35:35,666 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:35:35,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:35:33" (1/3) ... [2024-12-02 15:35:35,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9e0456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:35:35, skipping insertion in model container [2024-12-02 15:35:35,667 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:35:34" (2/3) ... [2024-12-02 15:35:35,667 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b9e0456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:35:35, skipping insertion in model container [2024-12-02 15:35:35,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:35:35" (3/3) ... [2024-12-02 15:35:35,669 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product31.cil.c [2024-12-02 15:35:35,683 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:35:35,686 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product31.cil.c that has 27 procedures, 595 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 15:35:35,753 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:35:35,766 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;@70292bb0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:35:35,766 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:35:35,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 595 states, 465 states have (on average 1.6817204301075268) internal successors, (782), 486 states have internal predecessors, (782), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2024-12-02 15:35:35,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-12-02 15:35:35,800 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:35,800 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:35,801 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:35,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:35,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1464050497, now seen corresponding path program 1 times [2024-12-02 15:35:35,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:35,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086783115] [2024-12-02 15:35:35,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:35,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:36,341 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:36,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:36,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086783115] [2024-12-02 15:35:36,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086783115] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:36,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:36,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:35:36,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536495621] [2024-12-02 15:35:36,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:36,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:35:36,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:36,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:35:36,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:36,369 INFO L87 Difference]: Start difference. First operand has 595 states, 465 states have (on average 1.6817204301075268) internal successors, (782), 486 states have internal predecessors, (782), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:36,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:36,519 INFO L93 Difference]: Finished difference Result 1170 states and 1947 transitions. [2024-12-02 15:35:36,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:35:36,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 104 [2024-12-02 15:35:36,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:36,537 INFO L225 Difference]: With dead ends: 1170 [2024-12-02 15:35:36,538 INFO L226 Difference]: Without dead ends: 587 [2024-12-02 15:35:36,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:36,548 INFO L435 NwaCegarLoop]: 965 mSDtfsCounter, 5 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:36,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2891 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:35:36,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-12-02 15:35:36,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2024-12-02 15:35:36,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 459 states have (on average 1.6775599128540306) internal successors, (770), 478 states have internal predecessors, (770), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:36,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 969 transitions. [2024-12-02 15:35:36,629 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 969 transitions. Word has length 104 [2024-12-02 15:35:36,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:36,629 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 969 transitions. [2024-12-02 15:35:36,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:36,630 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 969 transitions. [2024-12-02 15:35:36,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-12-02 15:35:36,636 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:36,636 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:36,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:35:36,637 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:36,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:36,637 INFO L85 PathProgramCache]: Analyzing trace with hash -2141758891, now seen corresponding path program 1 times [2024-12-02 15:35:36,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:36,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124446612] [2024-12-02 15:35:36,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:36,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:36,853 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:36,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:36,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124446612] [2024-12-02 15:35:36,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124446612] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:36,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:36,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:35:36,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920986056] [2024-12-02 15:35:36,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:36,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:35:36,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:36,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:35:36,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:36,856 INFO L87 Difference]: Start difference. First operand 587 states and 969 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:36,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:36,938 INFO L93 Difference]: Finished difference Result 1156 states and 1915 transitions. [2024-12-02 15:35:36,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:35:36,939 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 106 [2024-12-02 15:35:36,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:36,945 INFO L225 Difference]: With dead ends: 1156 [2024-12-02 15:35:36,945 INFO L226 Difference]: Without dead ends: 587 [2024-12-02 15:35:36,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:36,949 INFO L435 NwaCegarLoop]: 958 mSDtfsCounter, 4 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:36,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2870 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:35:36,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-12-02 15:35:36,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2024-12-02 15:35:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 459 states have (on average 1.6753812636165577) internal successors, (769), 478 states have internal predecessors, (769), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:36,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 968 transitions. [2024-12-02 15:35:36,985 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 968 transitions. Word has length 106 [2024-12-02 15:35:36,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:36,985 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 968 transitions. [2024-12-02 15:35:36,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:36,986 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 968 transitions. [2024-12-02 15:35:36,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-12-02 15:35:36,991 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:36,991 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:36,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:35:36,991 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:36,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:36,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1514431780, now seen corresponding path program 1 times [2024-12-02 15:35:36,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:36,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763714454] [2024-12-02 15:35:36,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:36,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:37,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:37,166 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:37,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:37,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763714454] [2024-12-02 15:35:37,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763714454] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:37,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:37,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:35:37,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851163744] [2024-12-02 15:35:37,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:37,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:35:37,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:37,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:35:37,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:37,168 INFO L87 Difference]: Start difference. First operand 587 states and 968 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:37,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:37,220 INFO L93 Difference]: Finished difference Result 1156 states and 1914 transitions. [2024-12-02 15:35:37,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:35:37,220 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 107 [2024-12-02 15:35:37,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:37,225 INFO L225 Difference]: With dead ends: 1156 [2024-12-02 15:35:37,225 INFO L226 Difference]: Without dead ends: 587 [2024-12-02 15:35:37,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:37,227 INFO L435 NwaCegarLoop]: 958 mSDtfsCounter, 3 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:37,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2870 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:35:37,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-12-02 15:35:37,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2024-12-02 15:35:37,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 459 states have (on average 1.673202614379085) internal successors, (768), 478 states have internal predecessors, (768), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:37,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 967 transitions. [2024-12-02 15:35:37,248 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 967 transitions. Word has length 107 [2024-12-02 15:35:37,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:37,249 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 967 transitions. [2024-12-02 15:35:37,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:37,249 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 967 transitions. [2024-12-02 15:35:37,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-12-02 15:35:37,252 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:37,252 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:35:37,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:35:37,252 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:37,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:37,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1014178503, now seen corresponding path program 1 times [2024-12-02 15:35:37,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:37,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510098375] [2024-12-02 15:35:37,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:37,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:37,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:37,358 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:37,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:37,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510098375] [2024-12-02 15:35:37,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510098375] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:37,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:37,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:35:37,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349596131] [2024-12-02 15:35:37,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:37,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:35:37,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:37,360 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:35:37,360 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:37,361 INFO L87 Difference]: Start difference. First operand 587 states and 967 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:37,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:37,403 INFO L93 Difference]: Finished difference Result 1156 states and 1913 transitions. [2024-12-02 15:35:37,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:35:37,404 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 108 [2024-12-02 15:35:37,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:37,408 INFO L225 Difference]: With dead ends: 1156 [2024-12-02 15:35:37,408 INFO L226 Difference]: Without dead ends: 587 [2024-12-02 15:35:37,410 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:37,411 INFO L435 NwaCegarLoop]: 958 mSDtfsCounter, 2 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:37,411 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2870 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:35:37,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-12-02 15:35:37,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2024-12-02 15:35:37,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 459 states have (on average 1.671023965141612) internal successors, (767), 478 states have internal predecessors, (767), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:37,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 966 transitions. [2024-12-02 15:35:37,433 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 966 transitions. Word has length 108 [2024-12-02 15:35:37,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:37,433 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 966 transitions. [2024-12-02 15:35:37,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:37,434 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 966 transitions. [2024-12-02 15:35:37,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-12-02 15:35:37,437 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:37,437 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:37,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:35:37,438 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:37,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:37,438 INFO L85 PathProgramCache]: Analyzing trace with hash -158246784, now seen corresponding path program 1 times [2024-12-02 15:35:37,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:37,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110279581] [2024-12-02 15:35:37,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:37,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:37,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:37,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:37,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110279581] [2024-12-02 15:35:37,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110279581] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:37,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:37,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:35:37,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928480055] [2024-12-02 15:35:37,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:37,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:35:37,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:37,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:35:37,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:37,556 INFO L87 Difference]: Start difference. First operand 587 states and 966 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:37,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:37,594 INFO L93 Difference]: Finished difference Result 1156 states and 1912 transitions. [2024-12-02 15:35:37,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:35:37,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-12-02 15:35:37,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:37,599 INFO L225 Difference]: With dead ends: 1156 [2024-12-02 15:35:37,599 INFO L226 Difference]: Without dead ends: 587 [2024-12-02 15:35:37,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:37,601 INFO L435 NwaCegarLoop]: 958 mSDtfsCounter, 1 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:37,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2870 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:35:37,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2024-12-02 15:35:37,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 587. [2024-12-02 15:35:37,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 459 states have (on average 1.6688453159041394) internal successors, (766), 478 states have internal predecessors, (766), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:37,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 965 transitions. [2024-12-02 15:35:37,617 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 965 transitions. Word has length 109 [2024-12-02 15:35:37,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:37,617 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 965 transitions. [2024-12-02 15:35:37,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 965 transitions. [2024-12-02 15:35:37,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 15:35:37,619 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:37,620 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:37,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 15:35:37,620 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:37,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:37,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1161185251, now seen corresponding path program 1 times [2024-12-02 15:35:37,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:37,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208864373] [2024-12-02 15:35:37,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:37,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:37,840 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:37,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:37,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208864373] [2024-12-02 15:35:37,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208864373] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:37,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:37,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 15:35:37,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473599752] [2024-12-02 15:35:37,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:37,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 15:35:37,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:37,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 15:35:37,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:35:37,842 INFO L87 Difference]: Start difference. First operand 587 states and 965 transitions. Second operand has 9 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 15:35:37,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:37,976 INFO L93 Difference]: Finished difference Result 1122 states and 1844 transitions. [2024-12-02 15:35:37,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:35:37,977 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-12-02 15:35:37,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:37,981 INFO L225 Difference]: With dead ends: 1122 [2024-12-02 15:35:37,981 INFO L226 Difference]: Without dead ends: 602 [2024-12-02 15:35:37,983 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:35:37,984 INFO L435 NwaCegarLoop]: 953 mSDtfsCounter, 91 mSDsluCounter, 6588 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 7541 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:37,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 7541 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:35:37,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2024-12-02 15:35:38,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 600. [2024-12-02 15:35:38,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 600 states, 469 states have (on average 1.6652452025586353) internal successors, (781), 490 states have internal predecessors, (781), 103 states have call successors, (103), 26 states have call predecessors, (103), 27 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2024-12-02 15:35:38,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 984 transitions. [2024-12-02 15:35:38,007 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 984 transitions. Word has length 110 [2024-12-02 15:35:38,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:38,007 INFO L471 AbstractCegarLoop]: Abstraction has 600 states and 984 transitions. [2024-12-02 15:35:38,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 15:35:38,008 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 984 transitions. [2024-12-02 15:35:38,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-12-02 15:35:38,011 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:38,012 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:38,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 15:35:38,012 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:38,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:38,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1602939746, now seen corresponding path program 1 times [2024-12-02 15:35:38,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:38,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095584759] [2024-12-02 15:35:38,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:38,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:38,100 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:38,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:38,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095584759] [2024-12-02 15:35:38,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095584759] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:38,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:38,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:35:38,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235507522] [2024-12-02 15:35:38,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:38,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:35:38,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:38,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:35:38,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:38,102 INFO L87 Difference]: Start difference. First operand 600 states and 984 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:38,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:38,149 INFO L93 Difference]: Finished difference Result 1174 states and 1938 transitions. [2024-12-02 15:35:38,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:35:38,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 110 [2024-12-02 15:35:38,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:38,156 INFO L225 Difference]: With dead ends: 1174 [2024-12-02 15:35:38,156 INFO L226 Difference]: Without dead ends: 581 [2024-12-02 15:35:38,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:38,159 INFO L435 NwaCegarLoop]: 959 mSDtfsCounter, 0 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:38,159 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2872 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:35:38,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2024-12-02 15:35:38,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 581. [2024-12-02 15:35:38,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 453 states have (on average 1.6600441501103753) internal successors, (752), 472 states have internal predecessors, (752), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:38,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 951 transitions. [2024-12-02 15:35:38,177 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 951 transitions. Word has length 110 [2024-12-02 15:35:38,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:38,178 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 951 transitions. [2024-12-02 15:35:38,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 951 transitions. [2024-12-02 15:35:38,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-12-02 15:35:38,181 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:38,181 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:38,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 15:35:38,181 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:38,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:38,181 INFO L85 PathProgramCache]: Analyzing trace with hash -2076301081, now seen corresponding path program 1 times [2024-12-02 15:35:38,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:38,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124940664] [2024-12-02 15:35:38,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:38,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:38,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:38,320 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:38,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:38,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124940664] [2024-12-02 15:35:38,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124940664] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:38,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:38,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:35:38,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422368799] [2024-12-02 15:35:38,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:38,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:35:38,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:38,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:35:38,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:35:38,322 INFO L87 Difference]: Start difference. First operand 581 states and 951 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:38,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:38,519 INFO L93 Difference]: Finished difference Result 1119 states and 1836 transitions. [2024-12-02 15:35:38,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:35:38,520 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2024-12-02 15:35:38,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:38,524 INFO L225 Difference]: With dead ends: 1119 [2024-12-02 15:35:38,524 INFO L226 Difference]: Without dead ends: 590 [2024-12-02 15:35:38,526 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:35:38,527 INFO L435 NwaCegarLoop]: 908 mSDtfsCounter, 55 mSDsluCounter, 3603 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4511 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:38,527 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4511 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 15:35:38,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-12-02 15:35:38,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 581. [2024-12-02 15:35:38,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 453 states have (on average 1.65121412803532) internal successors, (748), 472 states have internal predecessors, (748), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:38,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 947 transitions. [2024-12-02 15:35:38,544 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 947 transitions. Word has length 111 [2024-12-02 15:35:38,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:38,544 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 947 transitions. [2024-12-02 15:35:38,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:38,544 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 947 transitions. [2024-12-02 15:35:38,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-12-02 15:35:38,547 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:38,547 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:38,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 15:35:38,547 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:38,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:38,548 INFO L85 PathProgramCache]: Analyzing trace with hash 895816922, now seen corresponding path program 1 times [2024-12-02 15:35:38,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:38,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414067460] [2024-12-02 15:35:38,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:38,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:38,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:38,671 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:38,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:38,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414067460] [2024-12-02 15:35:38,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414067460] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:38,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:38,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:35:38,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719990778] [2024-12-02 15:35:38,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:38,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:35:38,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:38,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:35:38,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:35:38,673 INFO L87 Difference]: Start difference. First operand 581 states and 947 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:38,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:38,850 INFO L93 Difference]: Finished difference Result 1119 states and 1832 transitions. [2024-12-02 15:35:38,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:35:38,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 112 [2024-12-02 15:35:38,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:38,854 INFO L225 Difference]: With dead ends: 1119 [2024-12-02 15:35:38,854 INFO L226 Difference]: Without dead ends: 590 [2024-12-02 15:35:38,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:35:38,857 INFO L435 NwaCegarLoop]: 908 mSDtfsCounter, 54 mSDsluCounter, 3603 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4511 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:38,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4511 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:35:38,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-12-02 15:35:38,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 581. [2024-12-02 15:35:38,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 453 states have (on average 1.6423841059602649) internal successors, (744), 472 states have internal predecessors, (744), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:38,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 943 transitions. [2024-12-02 15:35:38,874 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 943 transitions. Word has length 112 [2024-12-02 15:35:38,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:38,874 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 943 transitions. [2024-12-02 15:35:38,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:38,874 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 943 transitions. [2024-12-02 15:35:38,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 15:35:38,878 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:38,878 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:38,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 15:35:38,878 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:38,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:38,879 INFO L85 PathProgramCache]: Analyzing trace with hash 88208482, now seen corresponding path program 1 times [2024-12-02 15:35:38,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:38,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549128319] [2024-12-02 15:35:38,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:38,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:39,059 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:39,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:39,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549128319] [2024-12-02 15:35:39,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549128319] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:39,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:39,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:35:39,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119458054] [2024-12-02 15:35:39,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:39,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:35:39,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:39,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:35:39,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:35:39,062 INFO L87 Difference]: Start difference. First operand 581 states and 943 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:39,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:39,268 INFO L93 Difference]: Finished difference Result 1119 states and 1828 transitions. [2024-12-02 15:35:39,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:35:39,269 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2024-12-02 15:35:39,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:39,274 INFO L225 Difference]: With dead ends: 1119 [2024-12-02 15:35:39,275 INFO L226 Difference]: Without dead ends: 590 [2024-12-02 15:35:39,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:35:39,279 INFO L435 NwaCegarLoop]: 907 mSDtfsCounter, 53 mSDsluCounter, 3586 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:39,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4493 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:35:39,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-12-02 15:35:39,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 581. [2024-12-02 15:35:39,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 453 states have (on average 1.6335540838852096) internal successors, (740), 472 states have internal predecessors, (740), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:39,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 939 transitions. [2024-12-02 15:35:39,313 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 939 transitions. Word has length 113 [2024-12-02 15:35:39,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:39,313 INFO L471 AbstractCegarLoop]: Abstraction has 581 states and 939 transitions. [2024-12-02 15:35:39,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:39,314 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 939 transitions. [2024-12-02 15:35:39,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-12-02 15:35:39,319 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:39,319 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:39,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 15:35:39,320 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:39,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:39,320 INFO L85 PathProgramCache]: Analyzing trace with hash 2059978722, now seen corresponding path program 1 times [2024-12-02 15:35:39,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:39,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953197297] [2024-12-02 15:35:39,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:39,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:39,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:39,519 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:39,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:39,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953197297] [2024-12-02 15:35:39,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953197297] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:39,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:39,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 15:35:39,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291085114] [2024-12-02 15:35:39,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:39,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 15:35:39,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:39,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 15:35:39,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:35:39,521 INFO L87 Difference]: Start difference. First operand 581 states and 939 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 15:35:39,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:39,612 INFO L93 Difference]: Finished difference Result 1110 states and 1810 transitions. [2024-12-02 15:35:39,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 15:35:39,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-12-02 15:35:39,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:39,619 INFO L225 Difference]: With dead ends: 1110 [2024-12-02 15:35:39,619 INFO L226 Difference]: Without dead ends: 560 [2024-12-02 15:35:39,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-02 15:35:39,622 INFO L435 NwaCegarLoop]: 928 mSDtfsCounter, 84 mSDsluCounter, 4567 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5495 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:39,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5495 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:35:39,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-12-02 15:35:39,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-12-02 15:35:39,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 432 states have (on average 1.6342592592592593) internal successors, (706), 451 states have internal predecessors, (706), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:39,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 905 transitions. [2024-12-02 15:35:39,649 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 905 transitions. Word has length 113 [2024-12-02 15:35:39,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:39,650 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 905 transitions. [2024-12-02 15:35:39,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 15:35:39,650 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 905 transitions. [2024-12-02 15:35:39,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-12-02 15:35:39,654 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:39,654 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:39,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 15:35:39,655 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:39,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:39,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1926802699, now seen corresponding path program 1 times [2024-12-02 15:35:39,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:39,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965126522] [2024-12-02 15:35:39,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:39,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:39,821 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:39,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:39,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965126522] [2024-12-02 15:35:39,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965126522] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:39,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:39,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:35:39,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430820512] [2024-12-02 15:35:39,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:39,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:35:39,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:39,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:35:39,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:35:39,823 INFO L87 Difference]: Start difference. First operand 560 states and 905 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:39,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:39,916 INFO L93 Difference]: Finished difference Result 1089 states and 1776 transitions. [2024-12-02 15:35:39,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:35:39,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2024-12-02 15:35:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:39,922 INFO L225 Difference]: With dead ends: 1089 [2024-12-02 15:35:39,922 INFO L226 Difference]: Without dead ends: 560 [2024-12-02 15:35:39,925 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:35:39,925 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 17 mSDsluCounter, 3543 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:39,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4431 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:35:39,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-12-02 15:35:39,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-12-02 15:35:39,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 432 states have (on average 1.6319444444444444) internal successors, (705), 451 states have internal predecessors, (705), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:39,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 904 transitions. [2024-12-02 15:35:39,963 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 904 transitions. Word has length 114 [2024-12-02 15:35:39,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:39,963 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 904 transitions. [2024-12-02 15:35:39,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:39,964 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 904 transitions. [2024-12-02 15:35:39,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-12-02 15:35:39,967 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:39,967 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:39,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 15:35:39,968 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:39,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:39,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1578374109, now seen corresponding path program 1 times [2024-12-02 15:35:39,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:39,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111047983] [2024-12-02 15:35:39,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:39,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:40,119 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:40,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:40,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111047983] [2024-12-02 15:35:40,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111047983] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:40,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:40,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 15:35:40,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396612282] [2024-12-02 15:35:40,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:40,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 15:35:40,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:40,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 15:35:40,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 15:35:40,121 INFO L87 Difference]: Start difference. First operand 560 states and 904 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:40,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:40,208 INFO L93 Difference]: Finished difference Result 1089 states and 1775 transitions. [2024-12-02 15:35:40,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:35:40,209 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2024-12-02 15:35:40,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:40,214 INFO L225 Difference]: With dead ends: 1089 [2024-12-02 15:35:40,214 INFO L226 Difference]: Without dead ends: 560 [2024-12-02 15:35:40,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:35:40,218 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 16 mSDsluCounter, 3543 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:40,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4431 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:35:40,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-12-02 15:35:40,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-12-02 15:35:40,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 432 states have (on average 1.6296296296296295) internal successors, (704), 451 states have internal predecessors, (704), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:40,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 903 transitions. [2024-12-02 15:35:40,242 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 903 transitions. Word has length 115 [2024-12-02 15:35:40,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:40,242 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 903 transitions. [2024-12-02 15:35:40,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:40,243 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 903 transitions. [2024-12-02 15:35:40,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 15:35:40,247 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:40,247 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:40,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 15:35:40,247 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:40,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:40,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1842855346, now seen corresponding path program 1 times [2024-12-02 15:35:40,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:40,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045532654] [2024-12-02 15:35:40,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:40,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:40,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:40,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045532654] [2024-12-02 15:35:40,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045532654] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:40,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:40,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 15:35:40,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704955245] [2024-12-02 15:35:40,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:40,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:35:40,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:40,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:35:40,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:40,364 INFO L87 Difference]: Start difference. First operand 560 states and 903 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:40,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:40,408 INFO L93 Difference]: Finished difference Result 1089 states and 1774 transitions. [2024-12-02 15:35:40,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 15:35:40,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2024-12-02 15:35:40,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:40,414 INFO L225 Difference]: With dead ends: 1089 [2024-12-02 15:35:40,414 INFO L226 Difference]: Without dead ends: 560 [2024-12-02 15:35:40,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 15:35:40,417 INFO L435 NwaCegarLoop]: 896 mSDtfsCounter, 9 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2682 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:40,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2682 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:35:40,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-12-02 15:35:40,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-12-02 15:35:40,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 432 states have (on average 1.6273148148148149) internal successors, (703), 451 states have internal predecessors, (703), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 902 transitions. [2024-12-02 15:35:40,442 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 902 transitions. Word has length 116 [2024-12-02 15:35:40,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:40,442 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 902 transitions. [2024-12-02 15:35:40,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:40,443 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 902 transitions. [2024-12-02 15:35:40,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 15:35:40,447 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:40,447 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:40,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 15:35:40,447 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:40,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:40,448 INFO L85 PathProgramCache]: Analyzing trace with hash 115719440, now seen corresponding path program 1 times [2024-12-02 15:35:40,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:40,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037447818] [2024-12-02 15:35:40,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:40,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:40,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:40,735 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-12-02 15:35:40,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:40,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037447818] [2024-12-02 15:35:40,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037447818] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:40,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:35:40,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 15:35:40,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430465562] [2024-12-02 15:35:40,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:40,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 15:35:40,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:40,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 15:35:40,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:35:40,736 INFO L87 Difference]: Start difference. First operand 560 states and 902 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 15:35:40,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:40,860 INFO L93 Difference]: Finished difference Result 1083 states and 1762 transitions. [2024-12-02 15:35:40,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-12-02 15:35:40,860 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 116 [2024-12-02 15:35:40,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:40,866 INFO L225 Difference]: With dead ends: 1083 [2024-12-02 15:35:40,866 INFO L226 Difference]: Without dead ends: 560 [2024-12-02 15:35:40,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:35:40,869 INFO L435 NwaCegarLoop]: 886 mSDtfsCounter, 5 mSDsluCounter, 7067 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7953 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:40,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7953 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:35:40,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-12-02 15:35:40,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-12-02 15:35:40,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 432 states have (on average 1.625) internal successors, (702), 451 states have internal predecessors, (702), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2024-12-02 15:35:40,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 901 transitions. [2024-12-02 15:35:40,893 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 901 transitions. Word has length 116 [2024-12-02 15:35:40,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:40,893 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 901 transitions. [2024-12-02 15:35:40,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 9 states have internal predecessors, (77), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-12-02 15:35:40,893 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 901 transitions. [2024-12-02 15:35:40,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 15:35:40,897 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:40,898 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:40,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 15:35:40,898 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:40,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:40,898 INFO L85 PathProgramCache]: Analyzing trace with hash -498663288, now seen corresponding path program 1 times [2024-12-02 15:35:40,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:40,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888401230] [2024-12-02 15:35:40,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:40,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:41,043 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 15:35:41,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:41,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888401230] [2024-12-02 15:35:41,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888401230] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:35:41,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678892445] [2024-12-02 15:35:41,044 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:41,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:41,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:35:41,046 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:35:41,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:35:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:41,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:35:41,410 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:35:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 15:35:41,439 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:35:41,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678892445] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:41,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:35:41,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-12-02 15:35:41,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806509459] [2024-12-02 15:35:41,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:41,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:35:41,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:41,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:35:41,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:35:41,441 INFO L87 Difference]: Start difference. First operand 560 states and 901 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:41,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:41,529 INFO L93 Difference]: Finished difference Result 1585 states and 2612 transitions. [2024-12-02 15:35:41,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:35:41,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2024-12-02 15:35:41,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:41,539 INFO L225 Difference]: With dead ends: 1585 [2024-12-02 15:35:41,540 INFO L226 Difference]: Without dead ends: 1070 [2024-12-02 15:35:41,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 15:35:41,543 INFO L435 NwaCegarLoop]: 1607 mSDtfsCounter, 842 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:41,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 2497 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:35:41,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2024-12-02 15:35:41,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1050. [2024-12-02 15:35:41,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 813 states have (on average 1.6494464944649447) internal successors, (1341), 845 states have internal predecessors, (1341), 190 states have call successors, (190), 46 states have call predecessors, (190), 46 states have return successors, (191), 184 states have call predecessors, (191), 185 states have call successors, (191) [2024-12-02 15:35:41,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1722 transitions. [2024-12-02 15:35:41,593 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1722 transitions. Word has length 117 [2024-12-02 15:35:41,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:41,593 INFO L471 AbstractCegarLoop]: Abstraction has 1050 states and 1722 transitions. [2024-12-02 15:35:41,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-12-02 15:35:41,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1722 transitions. [2024-12-02 15:35:41,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 15:35:41,597 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:41,597 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:41,608 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-12-02 15:35:41,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 15:35:41,798 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:41,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:41,799 INFO L85 PathProgramCache]: Analyzing trace with hash -436623674, now seen corresponding path program 1 times [2024-12-02 15:35:41,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:41,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103191782] [2024-12-02 15:35:41,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:41,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:41,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:41,958 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 15:35:41,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:41,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103191782] [2024-12-02 15:35:41,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103191782] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:35:41,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005296013] [2024-12-02 15:35:41,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:41,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:41,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:35:41,960 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:35:41,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:35:42,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:42,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:35:42,312 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:35:42,448 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 15:35:42,448 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:35:42,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005296013] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:42,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:35:42,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-02 15:35:42,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767432183] [2024-12-02 15:35:42,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:42,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:35:42,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:42,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:35:42,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:35:42,450 INFO L87 Difference]: Start difference. First operand 1050 states and 1722 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 15:35:43,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:43,042 INFO L93 Difference]: Finished difference Result 2071 states and 3465 transitions. [2024-12-02 15:35:43,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:35:43,043 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-12-02 15:35:43,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:43,048 INFO L225 Difference]: With dead ends: 2071 [2024-12-02 15:35:43,049 INFO L226 Difference]: Without dead ends: 1066 [2024-12-02 15:35:43,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:35:43,052 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 864 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 2257 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:43,053 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 2257 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:35:43,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2024-12-02 15:35:43,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2024-12-02 15:35:43,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1066 states, 827 states have (on average 1.6505441354292625) internal successors, (1365), 859 states have internal predecessors, (1365), 190 states have call successors, (190), 48 states have call predecessors, (190), 48 states have return successors, (193), 184 states have call predecessors, (193), 185 states have call successors, (193) [2024-12-02 15:35:43,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 1748 transitions. [2024-12-02 15:35:43,087 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 1748 transitions. Word has length 117 [2024-12-02 15:35:43,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:43,088 INFO L471 AbstractCegarLoop]: Abstraction has 1066 states and 1748 transitions. [2024-12-02 15:35:43,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 15:35:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 1748 transitions. [2024-12-02 15:35:43,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 15:35:43,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:43,090 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:43,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 15:35:43,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-12-02 15:35:43,291 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:43,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:43,291 INFO L85 PathProgramCache]: Analyzing trace with hash 2062915440, now seen corresponding path program 1 times [2024-12-02 15:35:43,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:43,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144902520] [2024-12-02 15:35:43,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:43,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:43,394 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 15:35:43,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:43,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144902520] [2024-12-02 15:35:43,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144902520] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:35:43,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434142759] [2024-12-02 15:35:43,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:43,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:43,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:35:43,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:35:43,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:35:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:43,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 1437 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:35:43,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:35:43,849 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 15:35:43,849 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:35:43,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434142759] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:43,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:35:43,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-02 15:35:43,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248082087] [2024-12-02 15:35:43,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:43,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:35:43,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:43,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:35:43,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:35:43,851 INFO L87 Difference]: Start difference. First operand 1066 states and 1748 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 15:35:44,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:44,466 INFO L93 Difference]: Finished difference Result 2103 states and 3511 transitions. [2024-12-02 15:35:44,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:35:44,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2024-12-02 15:35:44,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:44,477 INFO L225 Difference]: With dead ends: 2103 [2024-12-02 15:35:44,477 INFO L226 Difference]: Without dead ends: 1082 [2024-12-02 15:35:44,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:35:44,483 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 858 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:44,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 2254 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:35:44,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2024-12-02 15:35:44,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1082. [2024-12-02 15:35:44,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 841 states have (on average 1.6516052318668253) internal successors, (1389), 873 states have internal predecessors, (1389), 190 states have call successors, (190), 50 states have call predecessors, (190), 50 states have return successors, (195), 184 states have call predecessors, (195), 185 states have call successors, (195) [2024-12-02 15:35:44,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1774 transitions. [2024-12-02 15:35:44,552 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1774 transitions. Word has length 119 [2024-12-02 15:35:44,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:44,552 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1774 transitions. [2024-12-02 15:35:44,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 15:35:44,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1774 transitions. [2024-12-02 15:35:44,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-12-02 15:35:44,557 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:44,558 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:44,568 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 15:35:44,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 15:35:44,758 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:44,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:44,759 INFO L85 PathProgramCache]: Analyzing trace with hash -525455290, now seen corresponding path program 1 times [2024-12-02 15:35:44,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:44,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883476750] [2024-12-02 15:35:44,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:44,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:44,903 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 15:35:44,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:44,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883476750] [2024-12-02 15:35:44,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883476750] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:35:44,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502739256] [2024-12-02 15:35:44,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:44,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:44,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:35:44,906 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:35:44,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 15:35:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:45,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:35:45,231 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:35:45,353 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 15:35:45,353 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:35:45,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502739256] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:45,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:35:45,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-02 15:35:45,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954995248] [2024-12-02 15:35:45,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:45,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:35:45,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:45,355 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:35:45,355 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:35:45,355 INFO L87 Difference]: Start difference. First operand 1082 states and 1774 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 15:35:45,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:45,882 INFO L93 Difference]: Finished difference Result 2135 states and 3557 transitions. [2024-12-02 15:35:45,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:35:45,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2024-12-02 15:35:45,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:45,890 INFO L225 Difference]: With dead ends: 2135 [2024-12-02 15:35:45,890 INFO L226 Difference]: Without dead ends: 1098 [2024-12-02 15:35:45,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:35:45,893 INFO L435 NwaCegarLoop]: 877 mSDtfsCounter, 841 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 2251 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:45,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 2251 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 15:35:45,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-12-02 15:35:45,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 1098. [2024-12-02 15:35:45,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1098 states, 855 states have (on average 1.6526315789473685) internal successors, (1413), 887 states have internal predecessors, (1413), 190 states have call successors, (190), 52 states have call predecessors, (190), 52 states have return successors, (197), 184 states have call predecessors, (197), 185 states have call successors, (197) [2024-12-02 15:35:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1800 transitions. [2024-12-02 15:35:45,928 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1800 transitions. Word has length 121 [2024-12-02 15:35:45,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:45,928 INFO L471 AbstractCegarLoop]: Abstraction has 1098 states and 1800 transitions. [2024-12-02 15:35:45,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 15:35:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1800 transitions. [2024-12-02 15:35:45,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 15:35:45,931 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:45,931 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-12-02 15:35:45,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 15:35:46,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:46,132 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:46,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:46,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2076569608, now seen corresponding path program 1 times [2024-12-02 15:35:46,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:46,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513105809] [2024-12-02 15:35:46,133 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:46,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:46,280 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 15:35:46,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:46,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513105809] [2024-12-02 15:35:46,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513105809] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:35:46,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770036272] [2024-12-02 15:35:46,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:46,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:46,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:35:46,283 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:35:46,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 15:35:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:46,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 1441 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:35:46,595 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:35:46,706 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-02 15:35:46,706 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:35:46,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770036272] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:46,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:35:46,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-12-02 15:35:46,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129650813] [2024-12-02 15:35:46,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:46,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:35:46,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:46,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:35:46,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 15:35:46,708 INFO L87 Difference]: Start difference. First operand 1098 states and 1800 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 15:35:47,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:47,208 INFO L93 Difference]: Finished difference Result 2167 states and 3603 transitions. [2024-12-02 15:35:47,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 15:35:47,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2024-12-02 15:35:47,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:47,217 INFO L225 Difference]: With dead ends: 2167 [2024-12-02 15:35:47,217 INFO L226 Difference]: Without dead ends: 1114 [2024-12-02 15:35:47,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 15:35:47,222 INFO L435 NwaCegarLoop]: 874 mSDtfsCounter, 845 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 2248 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:47,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 2248 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 15:35:47,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2024-12-02 15:35:47,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1114. [2024-12-02 15:35:47,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1114 states, 869 states have (on average 1.6536248561565017) internal successors, (1437), 901 states have internal predecessors, (1437), 190 states have call successors, (190), 54 states have call predecessors, (190), 54 states have return successors, (199), 184 states have call predecessors, (199), 185 states have call successors, (199) [2024-12-02 15:35:47,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1826 transitions. [2024-12-02 15:35:47,274 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1826 transitions. Word has length 123 [2024-12-02 15:35:47,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:47,274 INFO L471 AbstractCegarLoop]: Abstraction has 1114 states and 1826 transitions. [2024-12-02 15:35:47,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-12-02 15:35:47,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1826 transitions. [2024-12-02 15:35:47,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-12-02 15:35:47,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:47,279 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 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] [2024-12-02 15:35:47,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 15:35:47,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:47,480 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:47,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:47,480 INFO L85 PathProgramCache]: Analyzing trace with hash 47295430, now seen corresponding path program 1 times [2024-12-02 15:35:47,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:47,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343447245] [2024-12-02 15:35:47,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:47,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 15:35:47,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:47,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343447245] [2024-12-02 15:35:47,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343447245] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:35:47,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141226210] [2024-12-02 15:35:47,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:47,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:47,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:35:47,794 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:35:47,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 15:35:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:48,097 INFO L256 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 15:35:48,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:35:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 15:35:48,275 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:35:48,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141226210] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:48,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:35:48,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2024-12-02 15:35:48,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248375197] [2024-12-02 15:35:48,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:48,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:35:48,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:48,277 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:35:48,277 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:35:48,277 INFO L87 Difference]: Start difference. First operand 1114 states and 1826 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:35:48,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:48,637 INFO L93 Difference]: Finished difference Result 1193 states and 1950 transitions. [2024-12-02 15:35:48,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:35:48,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 125 [2024-12-02 15:35:48,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:48,646 INFO L225 Difference]: With dead ends: 1193 [2024-12-02 15:35:48,646 INFO L226 Difference]: Without dead ends: 1178 [2024-12-02 15:35:48,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:35:48,647 INFO L435 NwaCegarLoop]: 891 mSDtfsCounter, 836 mSDsluCounter, 729 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:48,647 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 1620 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:35:48,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2024-12-02 15:35:48,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 1118. [2024-12-02 15:35:48,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 873 states have (on average 1.6506300114547536) internal successors, (1441), 905 states have internal predecessors, (1441), 190 states have call successors, (190), 54 states have call predecessors, (190), 54 states have return successors, (199), 184 states have call predecessors, (199), 185 states have call successors, (199) [2024-12-02 15:35:48,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1830 transitions. [2024-12-02 15:35:48,682 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1830 transitions. Word has length 125 [2024-12-02 15:35:48,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:48,683 INFO L471 AbstractCegarLoop]: Abstraction has 1118 states and 1830 transitions. [2024-12-02 15:35:48,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-12-02 15:35:48,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1830 transitions. [2024-12-02 15:35:48,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 15:35:48,686 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:48,686 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 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] [2024-12-02 15:35:48,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 15:35:48,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:48,886 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:48,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:48,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1852029247, now seen corresponding path program 1 times [2024-12-02 15:35:48,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:48,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918328333] [2024-12-02 15:35:48,887 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:48,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:48,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:49,195 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-12-02 15:35:49,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:49,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918328333] [2024-12-02 15:35:49,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918328333] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:35:49,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679977162] [2024-12-02 15:35:49,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:49,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:49,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:35:49,197 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:35:49,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 15:35:49,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:49,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 1459 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 15:35:49,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:35:49,536 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 15:35:49,536 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:35:49,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679977162] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:49,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:35:49,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-12-02 15:35:49,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318840882] [2024-12-02 15:35:49,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:49,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:35:49,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:49,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:35:49,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:35:49,537 INFO L87 Difference]: Start difference. First operand 1118 states and 1830 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 15:35:49,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:49,578 INFO L93 Difference]: Finished difference Result 1133 states and 1848 transitions. [2024-12-02 15:35:49,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:35:49,579 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) Word has length 131 [2024-12-02 15:35:49,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:49,588 INFO L225 Difference]: With dead ends: 1133 [2024-12-02 15:35:49,588 INFO L226 Difference]: Without dead ends: 1118 [2024-12-02 15:35:49,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:35:49,591 INFO L435 NwaCegarLoop]: 898 mSDtfsCounter, 0 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3588 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:49,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3588 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:35:49,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2024-12-02 15:35:49,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1118. [2024-12-02 15:35:49,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1118 states, 873 states have (on average 1.6483390607101946) internal successors, (1439), 905 states have internal predecessors, (1439), 190 states have call successors, (190), 54 states have call predecessors, (190), 54 states have return successors, (199), 184 states have call predecessors, (199), 185 states have call successors, (199) [2024-12-02 15:35:49,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1118 states to 1118 states and 1828 transitions. [2024-12-02 15:35:49,640 INFO L78 Accepts]: Start accepts. Automaton has 1118 states and 1828 transitions. Word has length 131 [2024-12-02 15:35:49,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:49,640 INFO L471 AbstractCegarLoop]: Abstraction has 1118 states and 1828 transitions. [2024-12-02 15:35:49,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) [2024-12-02 15:35:49,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1118 states and 1828 transitions. [2024-12-02 15:35:49,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-12-02 15:35:49,645 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:49,645 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1] [2024-12-02 15:35:49,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 15:35:49,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-12-02 15:35:49,846 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:49,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:49,846 INFO L85 PathProgramCache]: Analyzing trace with hash 788568593, now seen corresponding path program 1 times [2024-12-02 15:35:49,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:49,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572006995] [2024-12-02 15:35:49,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:49,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:49,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:50,139 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 15:35:50,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:50,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572006995] [2024-12-02 15:35:50,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572006995] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:35:50,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368298847] [2024-12-02 15:35:50,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:50,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:50,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:35:50,141 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:35:50,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 15:35:50,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:50,425 INFO L256 TraceCheckSpWp]: Trace formula consists of 1496 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-12-02 15:35:50,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:35:50,632 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 15:35:50,633 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:35:50,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368298847] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:50,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:35:50,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-12-02 15:35:50,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963511043] [2024-12-02 15:35:50,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:50,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 15:35:50,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:50,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 15:35:50,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-12-02 15:35:50,634 INFO L87 Difference]: Start difference. First operand 1118 states and 1828 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 15:35:53,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:53,144 INFO L93 Difference]: Finished difference Result 2326 states and 3835 transitions. [2024-12-02 15:35:53,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-12-02 15:35:53,145 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 142 [2024-12-02 15:35:53,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:53,153 INFO L225 Difference]: With dead ends: 2326 [2024-12-02 15:35:53,153 INFO L226 Difference]: Without dead ends: 1253 [2024-12-02 15:35:53,156 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-12-02 15:35:53,157 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 2745 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 4785 mSolverCounterSat, 669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2849 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 5454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 669 IncrementalHoareTripleChecker+Valid, 4785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:53,157 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2849 Valid, 1739 Invalid, 5454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [669 Valid, 4785 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 15:35:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2024-12-02 15:35:53,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1204. [2024-12-02 15:35:53,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 937 states have (on average 1.6371398078975454) internal successors, (1534), 973 states have internal predecessors, (1534), 206 states have call successors, (206), 56 states have call predecessors, (206), 60 states have return successors, (223), 200 states have call predecessors, (223), 201 states have call successors, (223) [2024-12-02 15:35:53,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1963 transitions. [2024-12-02 15:35:53,211 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1963 transitions. Word has length 142 [2024-12-02 15:35:53,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:53,211 INFO L471 AbstractCegarLoop]: Abstraction has 1204 states and 1963 transitions. [2024-12-02 15:35:53,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2024-12-02 15:35:53,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1963 transitions. [2024-12-02 15:35:53,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 15:35:53,214 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:53,215 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:35:53,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 15:35:53,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 15:35:53,415 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:53,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:53,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1854107279, now seen corresponding path program 1 times [2024-12-02 15:35:53,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:53,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284594042] [2024-12-02 15:35:53,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:53,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:53,703 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 15:35:53,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:53,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284594042] [2024-12-02 15:35:53,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284594042] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:35:53,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886172453] [2024-12-02 15:35:53,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:53,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:53,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:35:53,704 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:35:53,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 15:35:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:53,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 15:35:53,969 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:35:54,060 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 15:35:54,060 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:35:54,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886172453] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:54,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:35:54,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-12-02 15:35:54,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474446599] [2024-12-02 15:35:54,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:54,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:35:54,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:54,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:35:54,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:35:54,062 INFO L87 Difference]: Start difference. First operand 1204 states and 1963 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 15:35:55,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:55,496 INFO L93 Difference]: Finished difference Result 3790 states and 6303 transitions. [2024-12-02 15:35:55,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:35:55,496 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 147 [2024-12-02 15:35:55,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:55,511 INFO L225 Difference]: With dead ends: 3790 [2024-12-02 15:35:55,512 INFO L226 Difference]: Without dead ends: 2631 [2024-12-02 15:35:55,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:35:55,518 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 1998 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2082 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:55,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2082 Valid, 916 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 15:35:55,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2024-12-02 15:35:55,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2519. [2024-12-02 15:35:55,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 1931 states have (on average 1.6411185914034179) internal successors, (3169), 2013 states have internal predecessors, (3169), 464 states have call successors, (464), 107 states have call predecessors, (464), 123 states have return successors, (550), 460 states have call predecessors, (550), 459 states have call successors, (550) [2024-12-02 15:35:55,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 4183 transitions. [2024-12-02 15:35:55,600 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 4183 transitions. Word has length 147 [2024-12-02 15:35:55,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:55,601 INFO L471 AbstractCegarLoop]: Abstraction has 2519 states and 4183 transitions. [2024-12-02 15:35:55,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 15:35:55,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 4183 transitions. [2024-12-02 15:35:55,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 15:35:55,603 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:55,603 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:35:55,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 15:35:55,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-12-02 15:35:55,804 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:55,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:55,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1642900327, now seen corresponding path program 1 times [2024-12-02 15:35:55,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:55,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752490772] [2024-12-02 15:35:55,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:55,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:55,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:56,090 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 15:35:56,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:56,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752490772] [2024-12-02 15:35:56,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752490772] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:35:56,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353961460] [2024-12-02 15:35:56,090 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:56,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:56,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:35:56,091 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:35:56,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 15:35:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:56,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 15:35:56,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:35:56,437 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 15:35:56,437 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:35:56,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353961460] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:56,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:35:56,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-12-02 15:35:56,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872856716] [2024-12-02 15:35:56,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:56,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:35:56,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:56,438 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:35:56,438 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:35:56,438 INFO L87 Difference]: Start difference. First operand 2519 states and 4183 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 15:35:57,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:35:57,951 INFO L93 Difference]: Finished difference Result 8165 states and 13874 transitions. [2024-12-02 15:35:57,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:35:57,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 148 [2024-12-02 15:35:57,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:35:57,981 INFO L225 Difference]: With dead ends: 8165 [2024-12-02 15:35:57,981 INFO L226 Difference]: Without dead ends: 5691 [2024-12-02 15:35:57,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:35:57,993 INFO L435 NwaCegarLoop]: 367 mSDtfsCounter, 2005 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2088 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:35:57,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2088 Valid, 876 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 15:35:57,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2024-12-02 15:35:58,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 5452. [2024-12-02 15:35:58,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5452 states, 4100 states have (on average 1.6373170731707316) internal successors, (6713), 4296 states have internal predecessors, (6713), 1094 states have call successors, (1094), 209 states have call predecessors, (1094), 257 states have return successors, (1444), 1098 states have call predecessors, (1444), 1089 states have call successors, (1444) [2024-12-02 15:35:58,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5452 states to 5452 states and 9251 transitions. [2024-12-02 15:35:58,246 INFO L78 Accepts]: Start accepts. Automaton has 5452 states and 9251 transitions. Word has length 148 [2024-12-02 15:35:58,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:35:58,247 INFO L471 AbstractCegarLoop]: Abstraction has 5452 states and 9251 transitions. [2024-12-02 15:35:58,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 15:35:58,247 INFO L276 IsEmpty]: Start isEmpty. Operand 5452 states and 9251 transitions. [2024-12-02 15:35:58,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-12-02 15:35:58,250 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:35:58,250 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:35:58,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 15:35:58,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-12-02 15:35:58,451 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:35:58,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:35:58,451 INFO L85 PathProgramCache]: Analyzing trace with hash 609551795, now seen corresponding path program 1 times [2024-12-02 15:35:58,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:35:58,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122461144] [2024-12-02 15:35:58,451 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:58,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:35:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 15:35:58,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:35:58,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122461144] [2024-12-02 15:35:58,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122461144] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:35:58,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675110893] [2024-12-02 15:35:58,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:35:58,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:35:58,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:35:58,655 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:35:58,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 15:35:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:35:58,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 1520 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 15:35:58,939 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:35:59,028 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 15:35:59,028 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:35:59,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675110893] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:35:59,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:35:59,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-12-02 15:35:59,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968034274] [2024-12-02 15:35:59,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:35:59,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:35:59,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:35:59,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:35:59,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:35:59,029 INFO L87 Difference]: Start difference. First operand 5452 states and 9251 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 15:36:00,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:36:00,927 INFO L93 Difference]: Finished difference Result 18066 states and 31693 transitions. [2024-12-02 15:36:00,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:36:00,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 149 [2024-12-02 15:36:00,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:36:00,996 INFO L225 Difference]: With dead ends: 18066 [2024-12-02 15:36:00,996 INFO L226 Difference]: Without dead ends: 12659 [2024-12-02 15:36:01,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:36:01,020 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 1993 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 1364 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2075 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 1795 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 1364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:36:01,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2075 Valid, 870 Invalid, 1795 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 1364 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 15:36:01,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12659 states. [2024-12-02 15:36:01,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12659 to 12165. [2024-12-02 15:36:01,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12165 states, 8945 states have (on average 1.6285075461151481) internal successors, (14567), 9427 states have internal predecessors, (14567), 2674 states have call successors, (2674), 413 states have call predecessors, (2674), 545 states have return successors, (4010), 2706 states have call predecessors, (4010), 2669 states have call successors, (4010) [2024-12-02 15:36:01,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12165 states to 12165 states and 21251 transitions. [2024-12-02 15:36:01,954 INFO L78 Accepts]: Start accepts. Automaton has 12165 states and 21251 transitions. Word has length 149 [2024-12-02 15:36:01,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:36:01,955 INFO L471 AbstractCegarLoop]: Abstraction has 12165 states and 21251 transitions. [2024-12-02 15:36:01,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 15:36:01,955 INFO L276 IsEmpty]: Start isEmpty. Operand 12165 states and 21251 transitions. [2024-12-02 15:36:01,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-12-02 15:36:01,960 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:36:01,960 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:36:01,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 15:36:02,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-12-02 15:36:02,160 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:36:02,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:36:02,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1716094747, now seen corresponding path program 1 times [2024-12-02 15:36:02,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:36:02,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256422640] [2024-12-02 15:36:02,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:36:02,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:36:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:36:02,347 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 15:36:02,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:36:02,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256422640] [2024-12-02 15:36:02,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256422640] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:36:02,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495795452] [2024-12-02 15:36:02,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:36:02,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:36:02,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:36:02,349 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:36:02,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 15:36:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:36:02,621 INFO L256 TraceCheckSpWp]: Trace formula consists of 1522 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 15:36:02,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:36:02,699 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 15:36:02,699 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:36:02,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495795452] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:36:02,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:36:02,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-12-02 15:36:02,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886428239] [2024-12-02 15:36:02,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:36:02,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:36:02,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:36:02,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:36:02,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:36:02,701 INFO L87 Difference]: Start difference. First operand 12165 states and 21251 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 15:36:05,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:36:05,452 INFO L93 Difference]: Finished difference Result 41035 states and 75608 transitions. [2024-12-02 15:36:05,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:36:05,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 150 [2024-12-02 15:36:05,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:36:05,644 INFO L225 Difference]: With dead ends: 41035 [2024-12-02 15:36:05,644 INFO L226 Difference]: Without dead ends: 28915 [2024-12-02 15:36:05,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:36:05,762 INFO L435 NwaCegarLoop]: 361 mSDtfsCounter, 1981 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2062 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 1799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:36:05,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2062 Valid, 867 Invalid, 1799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 15:36:05,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28915 states. [2024-12-02 15:36:07,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28915 to 27966. [2024-12-02 15:36:07,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27966 states, 20066 states have (on average 1.6163161566829463) internal successors, (32433), 21274 states have internal predecessors, (32433), 6726 states have call successors, (6726), 821 states have call predecessors, (6726), 1173 states have return successors, (11720), 6850 states have call predecessors, (11720), 6721 states have call successors, (11720) [2024-12-02 15:36:07,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27966 states to 27966 states and 50879 transitions. [2024-12-02 15:36:07,600 INFO L78 Accepts]: Start accepts. Automaton has 27966 states and 50879 transitions. Word has length 150 [2024-12-02 15:36:07,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:36:07,601 INFO L471 AbstractCegarLoop]: Abstraction has 27966 states and 50879 transitions. [2024-12-02 15:36:07,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 15:36:07,601 INFO L276 IsEmpty]: Start isEmpty. Operand 27966 states and 50879 transitions. [2024-12-02 15:36:07,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-12-02 15:36:07,605 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:36:07,605 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:36:07,617 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 15:36:07,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-12-02 15:36:07,806 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:36:07,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:36:07,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1659191797, now seen corresponding path program 1 times [2024-12-02 15:36:07,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:36:07,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898028991] [2024-12-02 15:36:07,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:36:07,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:36:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:36:08,080 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-12-02 15:36:08,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:36:08,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898028991] [2024-12-02 15:36:08,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898028991] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:36:08,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685695649] [2024-12-02 15:36:08,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:36:08,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:36:08,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:36:08,082 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:36:08,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 15:36:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:36:08,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 1524 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 15:36:08,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:36:08,455 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-12-02 15:36:08,455 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:36:08,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685695649] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:36:08,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:36:08,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-12-02 15:36:08,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737260099] [2024-12-02 15:36:08,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:36:08,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:36:08,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:36:08,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:36:08,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:36:08,457 INFO L87 Difference]: Start difference. First operand 27966 states and 50879 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 15:36:13,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:36:13,507 INFO L93 Difference]: Finished difference Result 95662 states and 190214 transitions. [2024-12-02 15:36:13,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:36:13,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 151 [2024-12-02 15:36:13,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:36:14,042 INFO L225 Difference]: With dead ends: 95662 [2024-12-02 15:36:14,042 INFO L226 Difference]: Without dead ends: 67731 [2024-12-02 15:36:14,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:36:14,247 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 1956 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1372 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 1794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 1372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-12-02 15:36:14,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2036 Valid, 960 Invalid, 1794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 1372 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-12-02 15:36:14,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67731 states. [2024-12-02 15:36:18,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67731 to 66213. [2024-12-02 15:36:18,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66213 states, 46348 states have (on average 1.601881418831449) internal successors, (74244), 49418 states have internal predecessors, (74244), 17298 states have call successors, (17298), 1635 states have call predecessors, (17298), 2566 states have return successors, (36009), 17713 states have call predecessors, (36009), 17293 states have call successors, (36009) [2024-12-02 15:36:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66213 states to 66213 states and 127551 transitions. [2024-12-02 15:36:18,726 INFO L78 Accepts]: Start accepts. Automaton has 66213 states and 127551 transitions. Word has length 151 [2024-12-02 15:36:18,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:36:18,727 INFO L471 AbstractCegarLoop]: Abstraction has 66213 states and 127551 transitions. [2024-12-02 15:36:18,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 15:36:18,727 INFO L276 IsEmpty]: Start isEmpty. Operand 66213 states and 127551 transitions. [2024-12-02 15:36:18,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-12-02 15:36:18,743 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:36:18,744 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:36:18,752 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-12-02 15:36:18,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 15:36:18,944 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:36:18,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:36:18,945 INFO L85 PathProgramCache]: Analyzing trace with hash -896128943, now seen corresponding path program 1 times [2024-12-02 15:36:18,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:36:18,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078846269] [2024-12-02 15:36:18,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:36:18,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:36:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:36:19,197 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 15:36:19,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:36:19,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078846269] [2024-12-02 15:36:19,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078846269] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:36:19,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206878666] [2024-12-02 15:36:19,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:36:19,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:36:19,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:36:19,199 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:36:19,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-12-02 15:36:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:36:19,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 1937 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:36:19,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:36:19,523 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-12-02 15:36:19,524 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:36:19,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206878666] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:36:19,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:36:19,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2024-12-02 15:36:19,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922345816] [2024-12-02 15:36:19,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:36:19,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 15:36:19,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:36:19,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 15:36:19,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-12-02 15:36:19,525 INFO L87 Difference]: Start difference. First operand 66213 states and 127551 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 15:36:24,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:36:24,160 INFO L93 Difference]: Finished difference Result 135260 states and 270377 transitions. [2024-12-02 15:36:24,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:36:24,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 206 [2024-12-02 15:36:24,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:36:24,646 INFO L225 Difference]: With dead ends: 135260 [2024-12-02 15:36:24,646 INFO L226 Difference]: Without dead ends: 69093 [2024-12-02 15:36:25,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-12-02 15:36:25,192 INFO L435 NwaCegarLoop]: 839 mSDtfsCounter, 144 mSDsluCounter, 1655 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2494 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:36:25,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2494 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:36:25,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69093 states. [2024-12-02 15:36:29,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69093 to 68709. [2024-12-02 15:36:29,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68709 states, 48780 states have (on average 1.6177941779417795) internal successors, (78916), 51850 states have internal predecessors, (78916), 17298 states have call successors, (17298), 1699 states have call predecessors, (17298), 2630 states have return successors, (36009), 17713 states have call predecessors, (36009), 17293 states have call successors, (36009) [2024-12-02 15:36:30,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68709 states to 68709 states and 132223 transitions. [2024-12-02 15:36:30,231 INFO L78 Accepts]: Start accepts. Automaton has 68709 states and 132223 transitions. Word has length 206 [2024-12-02 15:36:30,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:36:30,231 INFO L471 AbstractCegarLoop]: Abstraction has 68709 states and 132223 transitions. [2024-12-02 15:36:30,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2024-12-02 15:36:30,231 INFO L276 IsEmpty]: Start isEmpty. Operand 68709 states and 132223 transitions. [2024-12-02 15:36:30,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2024-12-02 15:36:30,252 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:36:30,252 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:36:30,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-12-02 15:36:30,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-12-02 15:36:30,452 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:36:30,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:36:30,453 INFO L85 PathProgramCache]: Analyzing trace with hash -203572064, now seen corresponding path program 1 times [2024-12-02 15:36:30,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:36:30,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282509206] [2024-12-02 15:36:30,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:36:30,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:36:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:36:31,187 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-12-02 15:36:31,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:36:31,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282509206] [2024-12-02 15:36:31,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282509206] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:36:31,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737476490] [2024-12-02 15:36:31,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:36:31,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:36:31,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:36:31,189 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:36:31,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c91c7b95-5cce-4ed9-8c3d-e2b49f89a8d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-12-02 15:36:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:36:31,588 INFO L256 TraceCheckSpWp]: Trace formula consists of 2412 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 15:36:31,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:36:32,038 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 25 proven. 11 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-12-02 15:36:32,038 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 15:36:33,010 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 14 proven. 17 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-12-02 15:36:33,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737476490] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 15:36:33,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 15:36:33,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-12-02 15:36:33,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547258961] [2024-12-02 15:36:33,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 15:36:33,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-12-02 15:36:33,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:36:33,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-12-02 15:36:33,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2024-12-02 15:36:33,014 INFO L87 Difference]: Start difference. First operand 68709 states and 132223 transitions. Second operand has 25 states, 25 states have (on average 16.88) internal successors, (422), 23 states have internal predecessors, (422), 14 states have call successors, (92), 8 states have call predecessors, (92), 15 states have return successors, (94), 18 states have call predecessors, (94), 13 states have call successors, (94)