./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product33.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_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB --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 110ae467dd0e6a723852f1756a5d5c5e6a5ea34b8ae8b082c6ae77d9e8e89434 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:53:27,574 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:53:27,666 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:53:27,675 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:53:27,676 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:53:27,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:53:27,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:53:27,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:53:27,714 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:53:27,715 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:53:27,716 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:53:27,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:53:27,717 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:53:27,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:53:27,717 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:53:27,717 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:53:27,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:53:27,718 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:53:27,718 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:53:27,718 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:53:27,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:53:27,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:53:27,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:53:27,719 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:53:27,719 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:53:27,719 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:53:27,720 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:53:27,720 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:53:27,720 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:53:27,720 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:27,720 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:27,720 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:27,720 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:27,720 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:53:27,720 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:53:27,722 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:53:27,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:53:27,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:27,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:53:27,722 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:53:27,722 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:53:27,722 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:53:27,723 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:53:27,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:53:27,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:53:27,723 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:53:27,723 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:53:27,723 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:53:27,723 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_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 110ae467dd0e6a723852f1756a5d5c5e6a5ea34b8ae8b082c6ae77d9e8e89434 [2024-11-28 02:53:28,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:53:28,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:53:28,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:53:28,091 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:53:28,092 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:53:28,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/email_spec8_product33.cil.c [2024-11-28 02:53:30,997 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/data/59fac2623/f0a451947fa1466c925ccdc8fcff3846/FLAGaf9cd3bb6 [2024-11-28 02:53:31,505 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:53:31,505 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/sv-benchmarks/c/product-lines/email_spec8_product33.cil.c [2024-11-28 02:53:31,525 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/data/59fac2623/f0a451947fa1466c925ccdc8fcff3846/FLAGaf9cd3bb6 [2024-11-28 02:53:31,540 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/data/59fac2623/f0a451947fa1466c925ccdc8fcff3846 [2024-11-28 02:53:31,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:53:31,544 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:53:31,545 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:53:31,545 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:53:31,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:53:31,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:53:31" (1/1) ... [2024-11-28 02:53:31,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77717ee4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:31, skipping insertion in model container [2024-11-28 02:53:31,551 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:53:31" (1/1) ... [2024-11-28 02:53:31,605 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:53:31,882 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_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/sv-benchmarks/c/product-lines/email_spec8_product33.cil.c[11621,11634] [2024-11-28 02:53:32,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:53:32,359 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:53:32,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-28 02:53:32,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [414] [2024-11-28 02:53:32,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [432] [2024-11-28 02:53:32,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [441] [2024-11-28 02:53:32,371 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1521] [2024-11-28 02:53:32,371 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [1680] [2024-11-28 02:53:32,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1723] [2024-11-28 02:53:32,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1952] [2024-11-28 02:53:32,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2246] [2024-11-28 02:53:32,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2281] [2024-11-28 02:53:32,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2675] [2024-11-28 02:53:32,417 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_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/sv-benchmarks/c/product-lines/email_spec8_product33.cil.c[11621,11634] [2024-11-28 02:53:32,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:53:32,581 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:53:32,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32 WrapperNode [2024-11-28 02:53:32,582 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:53:32,583 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:53:32,583 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:53:32,583 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:53:32,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,627 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,709 INFO L138 Inliner]: procedures = 135, calls = 215, calls flagged for inlining = 66, calls inlined = 61, statements flattened = 1092 [2024-11-28 02:53:32,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:53:32,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:53:32,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:53:32,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:53:32,720 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,726 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,767 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-11-28 02:53:32,767 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,787 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,796 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,833 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,848 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:53:32,849 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:53:32,849 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:53:32,849 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:53:32,850 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (1/1) ... [2024-11-28 02:53:32,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:53:32,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:32,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:53:32,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:53:32,944 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-28 02:53:32,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-28 02:53:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-28 02:53:32,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-28 02:53:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-28 02:53:32,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-28 02:53:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-28 02:53:32,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-28 02:53:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-28 02:53:32,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-28 02:53:32,945 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-28 02:53:32,946 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-28 02:53:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-28 02:53:32,946 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-28 02:53:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-28 02:53:32,946 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-28 02:53:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-28 02:53:32,946 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-28 02:53:32,946 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-28 02:53:32,947 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-28 02:53:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-28 02:53:32,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-28 02:53:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-28 02:53:32,947 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-28 02:53:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-28 02:53:32,947 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-28 02:53:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:53:32,947 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-28 02:53:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-28 02:53:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-28 02:53:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-28 02:53:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-28 02:53:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-28 02:53:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-28 02:53:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-28 02:53:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-28 02:53:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-28 02:53:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-28 02:53:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-28 02:53:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-28 02:53:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-28 02:53:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-28 02:53:32,948 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-28 02:53:32,948 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-28 02:53:32,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-28 02:53:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-28 02:53:32,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-28 02:53:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:53:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:53:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:53:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:53:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-28 02:53:32,949 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-28 02:53:32,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:53:32,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:53:33,186 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:53:33,189 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:53:34,441 INFO L? ?]: Removed 503 outVars from TransFormulas that were not future-live. [2024-11-28 02:53:34,441 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:53:34,470 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:53:34,470 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 02:53:34,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:34 BoogieIcfgContainer [2024-11-28 02:53:34,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:53:34,473 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:53:34,474 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:53:34,478 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:53:34,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:53:31" (1/3) ... [2024-11-28 02:53:34,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146d5e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:53:34, skipping insertion in model container [2024-11-28 02:53:34,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:53:32" (2/3) ... [2024-11-28 02:53:34,479 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@146d5e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:53:34, skipping insertion in model container [2024-11-28 02:53:34,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:53:34" (3/3) ... [2024-11-28 02:53:34,480 INFO L128 eAbstractionObserver]: Analyzing ICFG email_spec8_product33.cil.c [2024-11-28 02:53:34,496 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:53:34,499 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec8_product33.cil.c that has 25 procedures, 388 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:53:34,591 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:53:34,606 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;@23fc090, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:53:34,607 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:53:34,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 388 states, 299 states have (on average 1.5016722408026757) internal successors, (449), 303 states have internal predecessors, (449), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-28 02:53:34,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 02:53:34,635 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:34,636 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:34,636 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:34,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:34,642 INFO L85 PathProgramCache]: Analyzing trace with hash -880887159, now seen corresponding path program 1 times [2024-11-28 02:53:34,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:34,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616490322] [2024-11-28 02:53:34,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:34,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:34,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:35,535 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 02:53:35,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:35,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616490322] [2024-11-28 02:53:35,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616490322] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:35,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556216521] [2024-11-28 02:53:35,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:35,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:35,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:35,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:35,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:53:36,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:36,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:53:36,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:36,061 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:53:36,063 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:36,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556216521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:36,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:36,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2024-11-28 02:53:36,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160742302] [2024-11-28 02:53:36,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:36,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:53:36,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:36,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:53:36,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:36,097 INFO L87 Difference]: Start difference. First operand has 388 states, 299 states have (on average 1.5016722408026757) internal successors, (449), 303 states have internal predecessors, (449), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:36,164 INFO L93 Difference]: Finished difference Result 618 states and 897 transitions. [2024-11-28 02:53:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:53:36,166 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-28 02:53:36,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:36,179 INFO L225 Difference]: With dead ends: 618 [2024-11-28 02:53:36,179 INFO L226 Difference]: Without dead ends: 381 [2024-11-28 02:53:36,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:36,188 INFO L435 NwaCegarLoop]: 571 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 571 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:36,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:36,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-28 02:53:36,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2024-11-28 02:53:36,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 293 states have (on average 1.4948805460750854) internal successors, (438), 296 states have internal predecessors, (438), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 02:53:36,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 563 transitions. [2024-11-28 02:53:36,263 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 563 transitions. Word has length 101 [2024-11-28 02:53:36,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:36,265 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 563 transitions. [2024-11-28 02:53:36,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:36,265 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 563 transitions. [2024-11-28 02:53:36,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-28 02:53:36,274 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:36,274 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:36,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:36,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 02:53:36,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:36,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:36,476 INFO L85 PathProgramCache]: Analyzing trace with hash 420300099, now seen corresponding path program 1 times [2024-11-28 02:53:36,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:36,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589092855] [2024-11-28 02:53:36,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:36,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:36,926 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-28 02:53:36,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:36,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589092855] [2024-11-28 02:53:36,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589092855] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:36,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857802160] [2024-11-28 02:53:36,927 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:36,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:36,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:36,929 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:36,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:53:37,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:37,304 INFO L256 TraceCheckSpWp]: Trace formula consists of 1023 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:53:37,308 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:37,334 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:53:37,334 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:37,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857802160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:37,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:37,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 02:53:37,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355718784] [2024-11-28 02:53:37,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:37,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:37,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:37,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:37,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:53:37,337 INFO L87 Difference]: Start difference. First operand 381 states and 563 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:37,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:37,416 INFO L93 Difference]: Finished difference Result 607 states and 877 transitions. [2024-11-28 02:53:37,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:37,417 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-28 02:53:37,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:37,425 INFO L225 Difference]: With dead ends: 607 [2024-11-28 02:53:37,425 INFO L226 Difference]: Without dead ends: 383 [2024-11-28 02:53:37,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:53:37,427 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 1 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:37,431 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1120 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:37,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-28 02:53:37,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 382. [2024-11-28 02:53:37,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 294 states have (on average 1.4931972789115646) internal successors, (439), 297 states have internal predecessors, (439), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-28 02:53:37,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 564 transitions. [2024-11-28 02:53:37,458 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 564 transitions. Word has length 101 [2024-11-28 02:53:37,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:37,460 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 564 transitions. [2024-11-28 02:53:37,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:37,461 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 564 transitions. [2024-11-28 02:53:37,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-28 02:53:37,467 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:37,467 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:37,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:37,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:37,668 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:37,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:37,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1221461680, now seen corresponding path program 1 times [2024-11-28 02:53:37,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:37,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090537543] [2024-11-28 02:53:37,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:37,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:37,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:38,017 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 02:53:38,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:38,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090537543] [2024-11-28 02:53:38,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090537543] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:38,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1702524098] [2024-11-28 02:53:38,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:38,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:38,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:38,023 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:38,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:53:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:38,405 INFO L256 TraceCheckSpWp]: Trace formula consists of 1047 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:53:38,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:38,443 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 02:53:38,443 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:38,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1702524098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:38,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:38,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-28 02:53:38,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233676684] [2024-11-28 02:53:38,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:38,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:38,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:38,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:38,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:53:38,447 INFO L87 Difference]: Start difference. First operand 382 states and 564 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:38,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:38,501 INFO L93 Difference]: Finished difference Result 799 states and 1195 transitions. [2024-11-28 02:53:38,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:38,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 109 [2024-11-28 02:53:38,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:38,507 INFO L225 Difference]: With dead ends: 799 [2024-11-28 02:53:38,507 INFO L226 Difference]: Without dead ends: 443 [2024-11-28 02:53:38,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:53:38,511 INFO L435 NwaCegarLoop]: 578 mSDtfsCounter, 115 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:38,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 1095 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:38,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-28 02:53:38,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 435. [2024-11-28 02:53:38,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 336 states have (on average 1.5119047619047619) internal successors, (508), 339 states have internal predecessors, (508), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-28 02:53:38,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 655 transitions. [2024-11-28 02:53:38,550 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 655 transitions. Word has length 109 [2024-11-28 02:53:38,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:38,550 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 655 transitions. [2024-11-28 02:53:38,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:38,550 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 655 transitions. [2024-11-28 02:53:38,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 02:53:38,553 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:38,553 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:38,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:38,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:38,758 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:38,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:38,759 INFO L85 PathProgramCache]: Analyzing trace with hash 157123507, now seen corresponding path program 1 times [2024-11-28 02:53:38,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:38,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048356871] [2024-11-28 02:53:38,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:38,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:39,049 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 02:53:39,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:39,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048356871] [2024-11-28 02:53:39,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048356871] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:39,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1396129211] [2024-11-28 02:53:39,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:39,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:39,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:39,056 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:39,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:53:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:39,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 02:53:39,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:39,489 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 02:53:39,491 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:39,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1396129211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:39,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:39,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-28 02:53:39,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448690422] [2024-11-28 02:53:39,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:39,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:53:39,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:39,493 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:53:39,493 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:53:39,493 INFO L87 Difference]: Start difference. First operand 435 states and 655 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:53:39,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:39,601 INFO L93 Difference]: Finished difference Result 861 states and 1300 transitions. [2024-11-28 02:53:39,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:53:39,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 110 [2024-11-28 02:53:39,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:39,605 INFO L225 Difference]: With dead ends: 861 [2024-11-28 02:53:39,605 INFO L226 Difference]: Without dead ends: 437 [2024-11-28 02:53:39,610 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:53:39,611 INFO L435 NwaCegarLoop]: 555 mSDtfsCounter, 2 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:39,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2209 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:39,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2024-11-28 02:53:39,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2024-11-28 02:53:39,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 337 states have (on average 1.510385756676558) internal successors, (509), 341 states have internal predecessors, (509), 74 states have call successors, (74), 24 states have call predecessors, (74), 25 states have return successors, (75), 73 states have call predecessors, (75), 73 states have call successors, (75) [2024-11-28 02:53:39,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 658 transitions. [2024-11-28 02:53:39,648 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 658 transitions. Word has length 110 [2024-11-28 02:53:39,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:39,648 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 658 transitions. [2024-11-28 02:53:39,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:53:39,649 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 658 transitions. [2024-11-28 02:53:39,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 02:53:39,653 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:39,653 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:39,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:39,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-28 02:53:39,858 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:39,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:39,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1266408414, now seen corresponding path program 1 times [2024-11-28 02:53:39,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:39,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983376705] [2024-11-28 02:53:39,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:39,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:39,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:40,100 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 02:53:40,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:40,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983376705] [2024-11-28 02:53:40,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983376705] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:40,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055968041] [2024-11-28 02:53:40,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:40,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:40,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:40,103 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:40,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:53:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:40,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 1053 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:53:40,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:40,521 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 02:53:40,521 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:53:40,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055968041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:40,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:53:40,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-11-28 02:53:40,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632505955] [2024-11-28 02:53:40,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:40,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:53:40,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:40,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:53:40,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:53:40,523 INFO L87 Difference]: Start difference. First operand 437 states and 658 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:53:40,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:40,614 INFO L93 Difference]: Finished difference Result 863 states and 1305 transitions. [2024-11-28 02:53:40,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:53:40,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 111 [2024-11-28 02:53:40,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:40,618 INFO L225 Difference]: With dead ends: 863 [2024-11-28 02:53:40,618 INFO L226 Difference]: Without dead ends: 439 [2024-11-28 02:53:40,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:53:40,621 INFO L435 NwaCegarLoop]: 553 mSDtfsCounter, 2 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:40,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2195 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:40,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-28 02:53:40,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-28 02:53:40,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 338 states have (on average 1.5088757396449703) internal successors, (510), 343 states have internal predecessors, (510), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (80), 73 states have call predecessors, (80), 73 states have call successors, (80) [2024-11-28 02:53:40,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 664 transitions. [2024-11-28 02:53:40,644 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 664 transitions. Word has length 111 [2024-11-28 02:53:40,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:40,645 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 664 transitions. [2024-11-28 02:53:40,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:53:40,645 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 664 transitions. [2024-11-28 02:53:40,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 02:53:40,648 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:40,648 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:40,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:40,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:40,849 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:40,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:40,849 INFO L85 PathProgramCache]: Analyzing trace with hash -278611618, now seen corresponding path program 1 times [2024-11-28 02:53:40,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:40,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166701790] [2024-11-28 02:53:40,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:40,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:41,069 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 02:53:41,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:41,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166701790] [2024-11-28 02:53:41,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166701790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:41,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:41,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:53:41,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180987278] [2024-11-28 02:53:41,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:41,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:53:41,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:41,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:53:41,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:41,073 INFO L87 Difference]: Start difference. First operand 439 states and 664 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:53:41,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:41,149 INFO L93 Difference]: Finished difference Result 855 states and 1296 transitions. [2024-11-28 02:53:41,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:53:41,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 112 [2024-11-28 02:53:41,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:41,153 INFO L225 Difference]: With dead ends: 855 [2024-11-28 02:53:41,153 INFO L226 Difference]: Without dead ends: 439 [2024-11-28 02:53:41,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:41,160 INFO L435 NwaCegarLoop]: 556 mSDtfsCounter, 2 mSDsluCounter, 1657 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:41,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2213 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:41,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-28 02:53:41,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-28 02:53:41,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 338 states have (on average 1.5088757396449703) internal successors, (510), 343 states have internal predecessors, (510), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (79), 73 states have call predecessors, (79), 73 states have call successors, (79) [2024-11-28 02:53:41,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 663 transitions. [2024-11-28 02:53:41,196 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 663 transitions. Word has length 112 [2024-11-28 02:53:41,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:41,197 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 663 transitions. [2024-11-28 02:53:41,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:53:41,197 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 663 transitions. [2024-11-28 02:53:41,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 02:53:41,201 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:41,201 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:41,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:53:41,201 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:41,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:41,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1813893423, now seen corresponding path program 2 times [2024-11-28 02:53:41,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:41,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763568692] [2024-11-28 02:53:41,203 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 02:53:41,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:41,245 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 02:53:41,245 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:53:41,379 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:53:41,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:41,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763568692] [2024-11-28 02:53:41,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763568692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:41,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:41,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:53:41,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605720471] [2024-11-28 02:53:41,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:41,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:53:41,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:41,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:53:41,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:41,383 INFO L87 Difference]: Start difference. First operand 439 states and 663 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:53:41,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:41,470 INFO L93 Difference]: Finished difference Result 853 states and 1291 transitions. [2024-11-28 02:53:41,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:53:41,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 113 [2024-11-28 02:53:41,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:41,476 INFO L225 Difference]: With dead ends: 853 [2024-11-28 02:53:41,476 INFO L226 Difference]: Without dead ends: 439 [2024-11-28 02:53:41,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:41,479 INFO L435 NwaCegarLoop]: 554 mSDtfsCounter, 2 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:41,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2199 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:41,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-28 02:53:41,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-28 02:53:41,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 338 states have (on average 1.5088757396449703) internal successors, (510), 343 states have internal predecessors, (510), 74 states have call successors, (74), 24 states have call predecessors, (74), 26 states have return successors, (78), 73 states have call predecessors, (78), 73 states have call successors, (78) [2024-11-28 02:53:41,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 662 transitions. [2024-11-28 02:53:41,510 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 662 transitions. Word has length 113 [2024-11-28 02:53:41,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:41,512 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 662 transitions. [2024-11-28 02:53:41,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:53:41,512 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 662 transitions. [2024-11-28 02:53:41,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-28 02:53:41,516 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:41,516 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:41,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:53:41,517 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:41,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:41,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1677725325, now seen corresponding path program 3 times [2024-11-28 02:53:41,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:41,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121446716] [2024-11-28 02:53:41,518 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-28 02:53:41,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:41,556 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-28 02:53:41,556 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 02:53:41,676 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:53:41,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:41,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121446716] [2024-11-28 02:53:41,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121446716] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:41,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:41,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:53:41,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648575450] [2024-11-28 02:53:41,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:41,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:53:41,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:41,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:53:41,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:41,679 INFO L87 Difference]: Start difference. First operand 439 states and 662 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:53:41,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:41,760 INFO L93 Difference]: Finished difference Result 855 states and 1297 transitions. [2024-11-28 02:53:41,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:53:41,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 114 [2024-11-28 02:53:41,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:41,764 INFO L225 Difference]: With dead ends: 855 [2024-11-28 02:53:41,765 INFO L226 Difference]: Without dead ends: 441 [2024-11-28 02:53:41,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:41,767 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 1 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2210 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:41,767 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2210 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:41,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-28 02:53:41,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 441. [2024-11-28 02:53:41,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 339 states have (on average 1.5073746312684366) internal successors, (511), 345 states have internal predecessors, (511), 74 states have call successors, (74), 24 states have call predecessors, (74), 27 states have return successors, (83), 73 states have call predecessors, (83), 73 states have call successors, (83) [2024-11-28 02:53:41,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 668 transitions. [2024-11-28 02:53:41,791 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 668 transitions. Word has length 114 [2024-11-28 02:53:41,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:41,792 INFO L471 AbstractCegarLoop]: Abstraction has 441 states and 668 transitions. [2024-11-28 02:53:41,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:53:41,792 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 668 transitions. [2024-11-28 02:53:41,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-28 02:53:41,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:41,794 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:41,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:53:41,795 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:41,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:41,795 INFO L85 PathProgramCache]: Analyzing trace with hash -203750070, now seen corresponding path program 1 times [2024-11-28 02:53:41,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:41,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506824855] [2024-11-28 02:53:41,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:41,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:41,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:41,988 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 02:53:41,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:41,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506824855] [2024-11-28 02:53:41,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506824855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:41,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:41,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:53:41,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231626731] [2024-11-28 02:53:41,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:41,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:53:41,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:41,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:53:41,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:41,990 INFO L87 Difference]: Start difference. First operand 441 states and 668 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:53:42,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:42,053 INFO L93 Difference]: Finished difference Result 861 states and 1307 transitions. [2024-11-28 02:53:42,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:53:42,053 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 115 [2024-11-28 02:53:42,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:42,057 INFO L225 Difference]: With dead ends: 861 [2024-11-28 02:53:42,057 INFO L226 Difference]: Without dead ends: 443 [2024-11-28 02:53:42,059 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:53:42,059 INFO L435 NwaCegarLoop]: 557 mSDtfsCounter, 1 mSDsluCounter, 1659 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:42,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2216 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:42,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-28 02:53:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2024-11-28 02:53:42,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 340 states have (on average 1.5058823529411764) internal successors, (512), 347 states have internal predecessors, (512), 74 states have call successors, (74), 24 states have call predecessors, (74), 28 states have return successors, (85), 73 states have call predecessors, (85), 73 states have call successors, (85) [2024-11-28 02:53:42,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 671 transitions. [2024-11-28 02:53:42,084 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 671 transitions. Word has length 115 [2024-11-28 02:53:42,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:42,084 INFO L471 AbstractCegarLoop]: Abstraction has 443 states and 671 transitions. [2024-11-28 02:53:42,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-28 02:53:42,084 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 671 transitions. [2024-11-28 02:53:42,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-28 02:53:42,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:42,087 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:42,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:53:42,087 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:42,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:42,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1897303348, now seen corresponding path program 1 times [2024-11-28 02:53:42,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:42,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533187372] [2024-11-28 02:53:42,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:42,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 02:53:42,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:42,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533187372] [2024-11-28 02:53:42,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533187372] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:53:42,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353753679] [2024-11-28 02:53:42,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:42,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:53:42,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:53:42,294 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:53:42,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:53:42,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:42,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 02:53:42,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:53:42,733 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:53:42,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:53:42,861 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:53:42,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353753679] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:53:42,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:53:42,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 11 [2024-11-28 02:53:42,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486934072] [2024-11-28 02:53:42,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:53:42,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 02:53:42,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:42,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 02:53:42,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:53:42,867 INFO L87 Difference]: Start difference. First operand 443 states and 671 transitions. Second operand has 11 states, 10 states have (on average 12.5) internal successors, (125), 11 states have internal predecessors, (125), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 02:53:43,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:43,839 INFO L93 Difference]: Finished difference Result 1231 states and 1947 transitions. [2024-11-28 02:53:43,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 02:53:43,840 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 12.5) internal successors, (125), 11 states have internal predecessors, (125), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) Word has length 116 [2024-11-28 02:53:43,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:43,846 INFO L225 Difference]: With dead ends: 1231 [2024-11-28 02:53:43,846 INFO L226 Difference]: Without dead ends: 816 [2024-11-28 02:53:43,848 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:53:43,849 INFO L435 NwaCegarLoop]: 560 mSDtfsCounter, 1430 mSDsluCounter, 2949 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 3509 SdHoareTripleChecker+Invalid, 612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:43,849 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 3509 Invalid, 612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 02:53:43,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-11-28 02:53:43,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 792. [2024-11-28 02:53:43,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 625 states have (on average 1.5664) internal successors, (979), 631 states have internal predecessors, (979), 138 states have call successors, (138), 25 states have call predecessors, (138), 28 states have return successors, (159), 137 states have call predecessors, (159), 137 states have call successors, (159) [2024-11-28 02:53:43,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1276 transitions. [2024-11-28 02:53:43,900 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1276 transitions. Word has length 116 [2024-11-28 02:53:43,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:43,900 INFO L471 AbstractCegarLoop]: Abstraction has 792 states and 1276 transitions. [2024-11-28 02:53:43,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 12.5) internal successors, (125), 11 states have internal predecessors, (125), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (24), 3 states have call predecessors, (24), 4 states have call successors, (24) [2024-11-28 02:53:43,900 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1276 transitions. [2024-11-28 02:53:43,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-28 02:53:43,905 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:43,905 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:43,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 02:53:44,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5c3fcdd-367f-42c9-81c6-7eb44ed6f39a/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 02:53:44,106 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:44,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:44,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1695209805, now seen corresponding path program 1 times [2024-11-28 02:53:44,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:44,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358309057] [2024-11-28 02:53:44,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:44,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:44,181 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:53:44,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:44,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358309057] [2024-11-28 02:53:44,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358309057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:44,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:44,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:44,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41081004] [2024-11-28 02:53:44,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:44,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:44,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:44,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:44,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:44,183 INFO L87 Difference]: Start difference. First operand 792 states and 1276 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:44,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:44,248 INFO L93 Difference]: Finished difference Result 1832 states and 3003 transitions. [2024-11-28 02:53:44,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:44,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 120 [2024-11-28 02:53:44,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:44,256 INFO L225 Difference]: With dead ends: 1832 [2024-11-28 02:53:44,257 INFO L226 Difference]: Without dead ends: 1118 [2024-11-28 02:53:44,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:44,260 INFO L435 NwaCegarLoop]: 572 mSDtfsCounter, 112 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1123 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:44,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 1123 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:44,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2024-11-28 02:53:44,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1110. [2024-11-28 02:53:44,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1110 states, 879 states have (on average 1.589306029579067) internal successors, (1397), 885 states have internal predecessors, (1397), 202 states have call successors, (202), 25 states have call predecessors, (202), 28 states have return successors, (233), 201 states have call predecessors, (233), 201 states have call successors, (233) [2024-11-28 02:53:44,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1110 states to 1110 states and 1832 transitions. [2024-11-28 02:53:44,335 INFO L78 Accepts]: Start accepts. Automaton has 1110 states and 1832 transitions. Word has length 120 [2024-11-28 02:53:44,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:44,336 INFO L471 AbstractCegarLoop]: Abstraction has 1110 states and 1832 transitions. [2024-11-28 02:53:44,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:44,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1110 states and 1832 transitions. [2024-11-28 02:53:44,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-28 02:53:44,343 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:44,343 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:44,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:53:44,343 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:44,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:44,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1586741205, now seen corresponding path program 1 times [2024-11-28 02:53:44,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:44,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497318461] [2024-11-28 02:53:44,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:44,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:44,421 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:53:44,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:44,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497318461] [2024-11-28 02:53:44,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497318461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:44,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:44,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:44,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277961330] [2024-11-28 02:53:44,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:44,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:44,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:44,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:44,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:44,423 INFO L87 Difference]: Start difference. First operand 1110 states and 1832 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:44,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:44,516 INFO L93 Difference]: Finished difference Result 2620 states and 4354 transitions. [2024-11-28 02:53:44,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:44,517 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2024-11-28 02:53:44,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:44,528 INFO L225 Difference]: With dead ends: 2620 [2024-11-28 02:53:44,529 INFO L226 Difference]: Without dead ends: 1639 [2024-11-28 02:53:44,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:44,534 INFO L435 NwaCegarLoop]: 563 mSDtfsCounter, 110 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:44,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 1118 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:44,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1639 states. [2024-11-28 02:53:44,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1639 to 1631. [2024-11-28 02:53:44,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 1305 states have (on average 1.6022988505747127) internal successors, (2091), 1311 states have internal predecessors, (2091), 297 states have call successors, (297), 25 states have call predecessors, (297), 28 states have return successors, (328), 296 states have call predecessors, (328), 296 states have call successors, (328) [2024-11-28 02:53:44,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 2716 transitions. [2024-11-28 02:53:44,693 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 2716 transitions. Word has length 121 [2024-11-28 02:53:44,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:44,694 INFO L471 AbstractCegarLoop]: Abstraction has 1631 states and 2716 transitions. [2024-11-28 02:53:44,694 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:44,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 2716 transitions. [2024-11-28 02:53:44,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-28 02:53:44,707 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:44,707 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:44,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:53:44,707 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:44,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:44,709 INFO L85 PathProgramCache]: Analyzing trace with hash -788850341, now seen corresponding path program 1 times [2024-11-28 02:53:44,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:44,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349880147] [2024-11-28 02:53:44,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:44,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:44,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:53:44,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:44,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349880147] [2024-11-28 02:53:44,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349880147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:44,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:44,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:44,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361770134] [2024-11-28 02:53:44,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:44,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:44,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:44,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:44,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:44,818 INFO L87 Difference]: Start difference. First operand 1631 states and 2716 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:44,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:44,998 INFO L93 Difference]: Finished difference Result 3799 states and 6378 transitions. [2024-11-28 02:53:44,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:44,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-11-28 02:53:45,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:45,019 INFO L225 Difference]: With dead ends: 3799 [2024-11-28 02:53:45,019 INFO L226 Difference]: Without dead ends: 2428 [2024-11-28 02:53:45,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:45,027 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 108 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:45,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 1113 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:45,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2428 states. [2024-11-28 02:53:45,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2428 to 2420. [2024-11-28 02:53:45,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2420 states, 1971 states have (on average 1.6123795027904617) internal successors, (3178), 1977 states have internal predecessors, (3178), 420 states have call successors, (420), 25 states have call predecessors, (420), 28 states have return successors, (467), 419 states have call predecessors, (467), 419 states have call successors, (467) [2024-11-28 02:53:45,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2420 states to 2420 states and 4065 transitions. [2024-11-28 02:53:45,214 INFO L78 Accepts]: Start accepts. Automaton has 2420 states and 4065 transitions. Word has length 122 [2024-11-28 02:53:45,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:45,215 INFO L471 AbstractCegarLoop]: Abstraction has 2420 states and 4065 transitions. [2024-11-28 02:53:45,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:45,215 INFO L276 IsEmpty]: Start isEmpty. Operand 2420 states and 4065 transitions. [2024-11-28 02:53:45,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-28 02:53:45,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:45,228 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:45,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:53:45,229 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:45,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:45,229 INFO L85 PathProgramCache]: Analyzing trace with hash 44435532, now seen corresponding path program 1 times [2024-11-28 02:53:45,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:45,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939530515] [2024-11-28 02:53:45,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:45,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:45,308 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:53:45,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:45,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939530515] [2024-11-28 02:53:45,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939530515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:45,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:45,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:45,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843473973] [2024-11-28 02:53:45,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:45,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:45,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:45,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:45,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:45,310 INFO L87 Difference]: Start difference. First operand 2420 states and 4065 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:45,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:45,497 INFO L93 Difference]: Finished difference Result 5637 states and 9535 transitions. [2024-11-28 02:53:45,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:45,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 123 [2024-11-28 02:53:45,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:45,522 INFO L225 Difference]: With dead ends: 5637 [2024-11-28 02:53:45,522 INFO L226 Difference]: Without dead ends: 3689 [2024-11-28 02:53:45,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:45,531 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 106 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:45,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1113 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:45,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2024-11-28 02:53:45,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3681. [2024-11-28 02:53:45,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3681 states, 3053 states have (on average 1.6190632165083525) internal successors, (4943), 3059 states have internal predecessors, (4943), 599 states have call successors, (599), 25 states have call predecessors, (599), 28 states have return successors, (672), 598 states have call predecessors, (672), 598 states have call successors, (672) [2024-11-28 02:53:45,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3681 states to 3681 states and 6214 transitions. [2024-11-28 02:53:45,861 INFO L78 Accepts]: Start accepts. Automaton has 3681 states and 6214 transitions. Word has length 123 [2024-11-28 02:53:45,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:45,861 INFO L471 AbstractCegarLoop]: Abstraction has 3681 states and 6214 transitions. [2024-11-28 02:53:45,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:45,862 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 6214 transitions. [2024-11-28 02:53:45,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-28 02:53:45,879 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:45,880 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:45,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:53:45,880 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:45,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:45,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2047583639, now seen corresponding path program 1 times [2024-11-28 02:53:45,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:45,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203495632] [2024-11-28 02:53:45,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:45,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:45,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:45,962 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:53:45,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:45,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203495632] [2024-11-28 02:53:45,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203495632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:45,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:45,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:45,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750997340] [2024-11-28 02:53:45,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:45,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:45,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:45,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:45,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:45,964 INFO L87 Difference]: Start difference. First operand 3681 states and 6214 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:46,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:46,261 INFO L93 Difference]: Finished difference Result 8663 states and 14722 transitions. [2024-11-28 02:53:46,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:46,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2024-11-28 02:53:46,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:46,302 INFO L225 Difference]: With dead ends: 8663 [2024-11-28 02:53:46,302 INFO L226 Difference]: Without dead ends: 5775 [2024-11-28 02:53:46,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:46,316 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 104 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:46,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 1119 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:46,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5775 states. [2024-11-28 02:53:46,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5775 to 5767. [2024-11-28 02:53:46,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5767 states, 4763 states have (on average 1.6153684652529918) internal successors, (7694), 4769 states have internal predecessors, (7694), 975 states have call successors, (975), 25 states have call predecessors, (975), 28 states have return successors, (1092), 974 states have call predecessors, (1092), 974 states have call successors, (1092) [2024-11-28 02:53:46,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5767 states to 5767 states and 9761 transitions. [2024-11-28 02:53:46,802 INFO L78 Accepts]: Start accepts. Automaton has 5767 states and 9761 transitions. Word has length 124 [2024-11-28 02:53:46,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:46,803 INFO L471 AbstractCegarLoop]: Abstraction has 5767 states and 9761 transitions. [2024-11-28 02:53:46,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:46,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5767 states and 9761 transitions. [2024-11-28 02:53:46,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-28 02:53:46,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:46,826 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:46,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:53:46,827 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:46,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:46,827 INFO L85 PathProgramCache]: Analyzing trace with hash -909455344, now seen corresponding path program 1 times [2024-11-28 02:53:46,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:46,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647601941] [2024-11-28 02:53:46,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:46,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:46,916 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:53:46,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:46,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647601941] [2024-11-28 02:53:46,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647601941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:46,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:46,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:46,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534809876] [2024-11-28 02:53:46,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:46,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:46,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:46,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:46,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:46,919 INFO L87 Difference]: Start difference. First operand 5767 states and 9761 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:47,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:47,347 INFO L93 Difference]: Finished difference Result 14147 states and 24091 transitions. [2024-11-28 02:53:47,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:47,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 125 [2024-11-28 02:53:47,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:47,424 INFO L225 Difference]: With dead ends: 14147 [2024-11-28 02:53:47,424 INFO L226 Difference]: Without dead ends: 9559 [2024-11-28 02:53:47,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:47,443 INFO L435 NwaCegarLoop]: 565 mSDtfsCounter, 102 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:47,443 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1120 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:47,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9559 states. [2024-11-28 02:53:48,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9559 to 9551. [2024-11-28 02:53:48,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9551 states, 7941 states have (on average 1.6142803173403852) internal successors, (12819), 7947 states have internal predecessors, (12819), 1581 states have call successors, (1581), 25 states have call predecessors, (1581), 28 states have return successors, (1776), 1580 states have call predecessors, (1776), 1580 states have call successors, (1776) [2024-11-28 02:53:48,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9551 states to 9551 states and 16176 transitions. [2024-11-28 02:53:48,247 INFO L78 Accepts]: Start accepts. Automaton has 9551 states and 16176 transitions. Word has length 125 [2024-11-28 02:53:48,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:48,247 INFO L471 AbstractCegarLoop]: Abstraction has 9551 states and 16176 transitions. [2024-11-28 02:53:48,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:48,248 INFO L276 IsEmpty]: Start isEmpty. Operand 9551 states and 16176 transitions. [2024-11-28 02:53:48,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-28 02:53:48,284 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:48,284 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:48,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:53:48,285 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:48,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:48,285 INFO L85 PathProgramCache]: Analyzing trace with hash 817803269, now seen corresponding path program 1 times [2024-11-28 02:53:48,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:48,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245850381] [2024-11-28 02:53:48,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:48,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:48,386 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:53:48,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:48,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245850381] [2024-11-28 02:53:48,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245850381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:48,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:48,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:48,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916730471] [2024-11-28 02:53:48,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:48,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:48,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:48,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:48,389 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:48,389 INFO L87 Difference]: Start difference. First operand 9551 states and 16176 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:49,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:49,056 INFO L93 Difference]: Finished difference Result 24618 states and 41853 transitions. [2024-11-28 02:53:49,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:49,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2024-11-28 02:53:49,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:49,135 INFO L225 Difference]: With dead ends: 24618 [2024-11-28 02:53:49,135 INFO L226 Difference]: Without dead ends: 16706 [2024-11-28 02:53:49,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:49,170 INFO L435 NwaCegarLoop]: 572 mSDtfsCounter, 100 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:49,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1133 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:49,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16706 states. [2024-11-28 02:53:50,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16706 to 16698. [2024-11-28 02:53:50,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16698 states, 13885 states have (on average 1.6059776737486495) internal successors, (22299), 13891 states have internal predecessors, (22299), 2784 states have call successors, (2784), 25 states have call predecessors, (2784), 28 states have return successors, (3123), 2783 states have call predecessors, (3123), 2783 states have call successors, (3123) [2024-11-28 02:53:50,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16698 states to 16698 states and 28206 transitions. [2024-11-28 02:53:50,164 INFO L78 Accepts]: Start accepts. Automaton has 16698 states and 28206 transitions. Word has length 126 [2024-11-28 02:53:50,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:50,164 INFO L471 AbstractCegarLoop]: Abstraction has 16698 states and 28206 transitions. [2024-11-28 02:53:50,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:50,165 INFO L276 IsEmpty]: Start isEmpty. Operand 16698 states and 28206 transitions. [2024-11-28 02:53:50,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-28 02:53:50,204 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:50,204 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:50,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:53:50,205 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:50,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:50,205 INFO L85 PathProgramCache]: Analyzing trace with hash -37377711, now seen corresponding path program 1 times [2024-11-28 02:53:50,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:50,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487470591] [2024-11-28 02:53:50,207 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:50,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:50,284 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:53:50,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:50,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487470591] [2024-11-28 02:53:50,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487470591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:50,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:50,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:50,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228585851] [2024-11-28 02:53:50,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:50,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:50,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:50,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:50,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:50,287 INFO L87 Difference]: Start difference. First operand 16698 states and 28206 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:51,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:51,671 INFO L93 Difference]: Finished difference Result 44154 states and 74886 transitions. [2024-11-28 02:53:51,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:51,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-11-28 02:53:51,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:51,828 INFO L225 Difference]: With dead ends: 44154 [2024-11-28 02:53:51,828 INFO L226 Difference]: Without dead ends: 29743 [2024-11-28 02:53:51,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:51,886 INFO L435 NwaCegarLoop]: 561 mSDtfsCounter, 98 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:51,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 1116 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:51,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29743 states. [2024-11-28 02:53:53,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29743 to 29735. [2024-11-28 02:53:53,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29735 states, 24883 states have (on average 1.6018566893059518) internal successors, (39859), 24889 states have internal predecessors, (39859), 4823 states have call successors, (4823), 25 states have call predecessors, (4823), 28 states have return successors, (5436), 4822 states have call predecessors, (5436), 4822 states have call successors, (5436) [2024-11-28 02:53:53,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29735 states to 29735 states and 50118 transitions. [2024-11-28 02:53:53,891 INFO L78 Accepts]: Start accepts. Automaton has 29735 states and 50118 transitions. Word has length 127 [2024-11-28 02:53:53,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:53,892 INFO L471 AbstractCegarLoop]: Abstraction has 29735 states and 50118 transitions. [2024-11-28 02:53:53,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:53,892 INFO L276 IsEmpty]: Start isEmpty. Operand 29735 states and 50118 transitions. [2024-11-28 02:53:53,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-28 02:53:53,935 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:53,935 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:53,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:53:53,935 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:53,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:53,936 INFO L85 PathProgramCache]: Analyzing trace with hash 2059229159, now seen corresponding path program 1 times [2024-11-28 02:53:53,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:53,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498481726] [2024-11-28 02:53:53,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:53,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:54,016 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:53:54,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:54,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498481726] [2024-11-28 02:53:54,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498481726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:54,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:54,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:54,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60051102] [2024-11-28 02:53:54,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:54,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:54,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:54,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:54,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:54,017 INFO L87 Difference]: Start difference. First operand 29735 states and 50118 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:55,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:53:55,822 INFO L93 Difference]: Finished difference Result 81056 states and 137043 transitions. [2024-11-28 02:53:55,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:53:55,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2024-11-28 02:53:55,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:53:56,094 INFO L225 Difference]: With dead ends: 81056 [2024-11-28 02:53:56,095 INFO L226 Difference]: Without dead ends: 54383 [2024-11-28 02:53:56,168 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:56,169 INFO L435 NwaCegarLoop]: 564 mSDtfsCounter, 96 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:53:56,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1119 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:53:56,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54383 states. [2024-11-28 02:53:59,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54383 to 54375. [2024-11-28 02:53:59,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54375 states, 45808 states have (on average 1.5962495633950402) internal successors, (73121), 45814 states have internal predecessors, (73121), 8538 states have call successors, (8538), 25 states have call predecessors, (8538), 28 states have return successors, (9683), 8537 states have call predecessors, (9683), 8537 states have call successors, (9683) [2024-11-28 02:53:59,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54375 states to 54375 states and 91342 transitions. [2024-11-28 02:53:59,789 INFO L78 Accepts]: Start accepts. Automaton has 54375 states and 91342 transitions. Word has length 128 [2024-11-28 02:53:59,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:53:59,790 INFO L471 AbstractCegarLoop]: Abstraction has 54375 states and 91342 transitions. [2024-11-28 02:53:59,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:53:59,790 INFO L276 IsEmpty]: Start isEmpty. Operand 54375 states and 91342 transitions. [2024-11-28 02:53:59,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-28 02:53:59,837 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:53:59,838 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:53:59,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 02:53:59,838 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:53:59,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:53:59,838 INFO L85 PathProgramCache]: Analyzing trace with hash -582161807, now seen corresponding path program 1 times [2024-11-28 02:53:59,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:53:59,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910992104] [2024-11-28 02:53:59,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:53:59,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:53:59,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:53:59,921 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:53:59,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:53:59,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910992104] [2024-11-28 02:53:59,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910992104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:53:59,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:53:59,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:53:59,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402781005] [2024-11-28 02:53:59,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:53:59,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:53:59,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:53:59,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:53:59,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:53:59,924 INFO L87 Difference]: Start difference. First operand 54375 states and 91342 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:54:02,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:02,765 INFO L93 Difference]: Finished difference Result 101593 states and 170941 transitions. [2024-11-28 02:54:02,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:54:02,765 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 129 [2024-11-28 02:54:02,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:03,246 INFO L225 Difference]: With dead ends: 101593 [2024-11-28 02:54:03,246 INFO L226 Difference]: Without dead ends: 101369 [2024-11-28 02:54:03,285 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:54:03,286 INFO L435 NwaCegarLoop]: 570 mSDtfsCounter, 91 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1130 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:03,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1130 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:54:03,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101369 states. [2024-11-28 02:54:07,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101369 to 101361. [2024-11-28 02:54:07,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101361 states, 85995 states have (on average 1.5892086749229606) internal successors, (136664), 86001 states have internal predecessors, (136664), 15337 states have call successors, (15337), 25 states have call predecessors, (15337), 28 states have return successors, (17528), 15336 states have call predecessors, (17528), 15336 states have call successors, (17528) [2024-11-28 02:54:07,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101361 states to 101361 states and 169529 transitions. [2024-11-28 02:54:07,947 INFO L78 Accepts]: Start accepts. Automaton has 101361 states and 169529 transitions. Word has length 129 [2024-11-28 02:54:07,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:54:07,948 INFO L471 AbstractCegarLoop]: Abstraction has 101361 states and 169529 transitions. [2024-11-28 02:54:07,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-28 02:54:07,948 INFO L276 IsEmpty]: Start isEmpty. Operand 101361 states and 169529 transitions. [2024-11-28 02:54:07,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-28 02:54:07,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:54:07,989 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:54:07,989 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 02:54:07,990 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:54:07,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:54:07,990 INFO L85 PathProgramCache]: Analyzing trace with hash -586499546, now seen corresponding path program 1 times [2024-11-28 02:54:07,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:54:07,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498749140] [2024-11-28 02:54:07,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:54:07,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:54:08,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:54:08,463 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-28 02:54:08,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:54:08,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498749140] [2024-11-28 02:54:08,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498749140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:54:08,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:54:08,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-28 02:54:08,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559919759] [2024-11-28 02:54:08,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:54:08,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 02:54:08,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:54:08,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 02:54:08,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:54:08,465 INFO L87 Difference]: Start difference. First operand 101361 states and 169529 transitions. Second operand has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-28 02:54:15,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:54:15,707 INFO L93 Difference]: Finished difference Result 202317 states and 343806 transitions. [2024-11-28 02:54:15,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-28 02:54:15,708 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 7.416666666666667) internal successors, (89), 12 states have internal predecessors, (89), 6 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 130 [2024-11-28 02:54:15,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:54:16,495 INFO L225 Difference]: With dead ends: 202317 [2024-11-28 02:54:16,495 INFO L226 Difference]: Without dead ends: 202099 [2024-11-28 02:54:16,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=833, Unknown=0, NotChecked=0, Total=992 [2024-11-28 02:54:16,563 INFO L435 NwaCegarLoop]: 649 mSDtfsCounter, 1789 mSDsluCounter, 6925 mSDsCounter, 0 mSdLazyCounter, 1650 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1789 SdHoareTripleChecker+Valid, 7574 SdHoareTripleChecker+Invalid, 2249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 1650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:54:16,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1789 Valid, 7574 Invalid, 2249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [599 Valid, 1650 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 02:54:16,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202099 states. [2024-11-28 02:54:23,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202099 to 201908. [2024-11-28 02:54:23,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201908 states, 171354 states have (on average 1.5899191148149445) internal successors, (272439), 171258 states have internal predecessors, (272439), 30481 states have call successors, (30481), 65 states have call predecessors, (30481), 72 states have return successors, (38139), 30590 states have call predecessors, (38139), 30478 states have call successors, (38139)