./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd --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 80e9bbe10488e38c848fee2c8f87fc84d027f309ec95e867f80c828929ca07a3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:04:54,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:04:54,223 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:04:54,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:04:54,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:04:54,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:04:54,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:04:54,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:04:54,259 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:04:54,259 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:04:54,259 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:04:54,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:04:54,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:04:54,260 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:04:54,260 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:04:54,260 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:04:54,260 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:04:54,260 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:04:54,260 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:04:54,260 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:04:54,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:04:54,261 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:04:54,261 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:04:54,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:04:54,261 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:04:54,261 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:04:54,261 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:04:54,261 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:04:54,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:04:54,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:04:54,262 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:04:54,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:04:54,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:04:54,262 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:04:54,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:04:54,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:04:54,262 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:04:54,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:04:54,262 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:04:54,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:04:54,263 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:04:54,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:04:54,263 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_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd 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 -> 80e9bbe10488e38c848fee2c8f87fc84d027f309ec95e867f80c828929ca07a3 [2024-11-13 16:04:54,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:04:54,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:04:54,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:04:54,536 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:04:54,539 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:04:54,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/product-lines/email_spec4_product30.cil.c Unable to find full path for "g++" [2024-11-13 16:04:56,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:04:56,973 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:04:56,974 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/sv-benchmarks/c/product-lines/email_spec4_product30.cil.c [2024-11-13 16:04:56,993 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/data/2c6958e5b/bb938d049cac4acc815cec65f6ae28c1/FLAGc48eeac3e [2024-11-13 16:04:57,009 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/data/2c6958e5b/bb938d049cac4acc815cec65f6ae28c1 [2024-11-13 16:04:57,012 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:04:57,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:04:57,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:04:57,016 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:04:57,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:04:57,022 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:04:57" (1/1) ... [2024-11-13 16:04:57,023 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432ec0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:57, skipping insertion in model container [2024-11-13 16:04:57,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:04:57" (1/1) ... [2024-11-13 16:04:57,101 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:04:57,934 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_9f617b4f-53b5-400e-bf89-44b93e94ed12/sv-benchmarks/c/product-lines/email_spec4_product30.cil.c[64112,64125] [2024-11-13 16:04:57,940 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:04:57,972 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:04:57,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-13 16:04:57,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [97] [2024-11-13 16:04:57,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [115] [2024-11-13 16:04:57,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [498] [2024-11-13 16:04:57,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [636] [2024-11-13 16:04:57,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1710] [2024-11-13 16:04:57,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2107] [2024-11-13 16:04:57,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2392] [2024-11-13 16:04:57,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2758] [2024-11-13 16:04:57,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2786] [2024-11-13 16:04:57,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3002] [2024-11-13 16:04:58,213 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_9f617b4f-53b5-400e-bf89-44b93e94ed12/sv-benchmarks/c/product-lines/email_spec4_product30.cil.c[64112,64125] [2024-11-13 16:04:58,213 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:04:58,272 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:04:58,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58 WrapperNode [2024-11-13 16:04:58,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:04:58,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:04:58,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:04:58,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:04:58,286 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (1/1) ... [2024-11-13 16:04:58,312 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (1/1) ... [2024-11-13 16:04:58,370 INFO L138 Inliner]: procedures = 131, calls = 204, calls flagged for inlining = 60, calls inlined = 50, statements flattened = 910 [2024-11-13 16:04:58,371 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:04:58,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:04:58,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:04:58,372 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:04:58,383 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (1/1) ... [2024-11-13 16:04:58,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (1/1) ... [2024-11-13 16:04:58,390 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (1/1) ... [2024-11-13 16:04:58,437 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]. [2024-11-13 16:04:58,438 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (1/1) ... [2024-11-13 16:04:58,438 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (1/1) ... [2024-11-13 16:04:58,467 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (1/1) ... [2024-11-13 16:04:58,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (1/1) ... [2024-11-13 16:04:58,485 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (1/1) ... [2024-11-13 16:04:58,488 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (1/1) ... [2024-11-13 16:04:58,496 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:04:58,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:04:58,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:04:58,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:04:58,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (1/1) ... [2024-11-13 16:04:58,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:04:58,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:04:58,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:04:58,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:04:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-13 16:04:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-13 16:04:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-13 16:04:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-13 16:04:58,584 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-13 16:04:58,584 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-13 16:04:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-13 16:04:58,585 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-13 16:04:58,585 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-13 16:04:58,586 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-13 16:04:58,586 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-13 16:04:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-13 16:04:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-13 16:04:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-13 16:04:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-13 16:04:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-13 16:04:58,587 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-13 16:04:58,587 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-13 16:04:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-13 16:04:58,588 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-13 16:04:58,588 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-13 16:04:58,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-13 16:04:58,589 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-13 16:04:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-13 16:04:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:04:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-13 16:04:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-13 16:04:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-13 16:04:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-13 16:04:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-13 16:04:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-13 16:04:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-13 16:04:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-13 16:04:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-13 16:04:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-13 16:04:58,590 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-13 16:04:58,590 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-13 16:04:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-13 16:04:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-13 16:04:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-13 16:04:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-13 16:04:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-13 16:04:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-13 16:04:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-13 16:04:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-13 16:04:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:04:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 16:04:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-13 16:04:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-13 16:04:58,591 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-13 16:04:58,591 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-13 16:04:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:04:58,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:04:58,891 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:04:58,894 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:05:00,292 INFO L? ?]: Removed 430 outVars from TransFormulas that were not future-live. [2024-11-13 16:05:00,293 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:05:00,314 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:05:00,315 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:05:00,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:05:00 BoogieIcfgContainer [2024-11-13 16:05:00,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:05:00,319 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:05:00,319 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:05:00,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:05:00,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:04:57" (1/3) ... [2024-11-13 16:05:00,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f25e952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:05:00, skipping insertion in model container [2024-11-13 16:05:00,327 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:04:58" (2/3) ... [2024-11-13 16:05:00,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f25e952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:05:00, skipping insertion in model container [2024-11-13 16:05:00,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:05:00" (3/3) ... [2024-11-13 16:05:00,329 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product30.cil.c [2024-11-13 16:05:00,347 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:05:00,350 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec4_product30.cil.c that has 24 procedures, 347 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 16:05:00,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:05:00,466 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;@21950f05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:05:00,467 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 16:05:00,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 347 states, 269 states have (on average 1.516728624535316) internal successors, (408), 273 states have internal predecessors, (408), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-13 16:05:00,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 16:05:00,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:00,508 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 16:05:00,509 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:00,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:00,516 INFO L85 PathProgramCache]: Analyzing trace with hash -2001743566, now seen corresponding path program 1 times [2024-11-13 16:05:00,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:00,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633606335] [2024-11-13 16:05:00,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:00,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:01,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 16:05:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 16:05:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:05:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-13 16:05:01,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-13 16:05:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 16:05:01,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 16:05:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 16:05:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 16:05:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 16:05:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 16:05:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:01,816 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 16:05:01,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:01,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633606335] [2024-11-13 16:05:01,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633606335] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:05:01,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1541144614] [2024-11-13 16:05:01,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:01,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:05:01,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:01,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:05:01,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:05:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:02,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 16:05:02,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:02,449 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 16:05:02,452 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:05:02,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1541144614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:02,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:05:02,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2024-11-13 16:05:02,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937169305] [2024-11-13 16:05:02,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:02,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 16:05:02,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:02,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 16:05:02,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:05:02,494 INFO L87 Difference]: Start difference. First operand has 347 states, 269 states have (on average 1.516728624535316) internal successors, (408), 273 states have internal predecessors, (408), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:02,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:02,582 INFO L93 Difference]: Finished difference Result 540 states and 782 transitions. [2024-11-13 16:05:02,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 16:05:02,584 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 107 [2024-11-13 16:05:02,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:02,601 INFO L225 Difference]: With dead ends: 540 [2024-11-13 16:05:02,601 INFO L226 Difference]: Without dead ends: 340 [2024-11-13 16:05:02,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:05:02,611 INFO L432 NwaCegarLoop]: 510 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, 510 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 [2024-11-13 16:05:02,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:05:02,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-13 16:05:02,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2024-11-13 16:05:02,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 263 states have (on average 1.5095057034220531) internal successors, (397), 266 states have internal predecessors, (397), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-13 16:05:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 502 transitions. [2024-11-13 16:05:02,715 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 502 transitions. Word has length 107 [2024-11-13 16:05:02,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:02,718 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 502 transitions. [2024-11-13 16:05:02,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:02,718 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 502 transitions. [2024-11-13 16:05:02,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-13 16:05:02,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:02,732 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 16:05:02,754 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:05:02,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-13 16:05:02,933 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:02,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:02,934 INFO L85 PathProgramCache]: Analyzing trace with hash 254986478, now seen corresponding path program 1 times [2024-11-13 16:05:02,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:02,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480457693] [2024-11-13 16:05:02,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:02,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 16:05:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 16:05:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:05:03,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-13 16:05:03,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-11-13 16:05:03,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 16:05:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 16:05:03,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 16:05:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:05:03,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 16:05:03,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 16:05:03,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:03,494 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 16:05:03,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:03,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480457693] [2024-11-13 16:05:03,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480457693] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:05:03,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [549199200] [2024-11-13 16:05:03,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:03,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:05:03,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:03,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:05:03,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:05:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:05:04,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:04,077 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 16:05:04,077 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:05:04,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [549199200] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:04,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:05:04,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-13 16:05:04,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094496948] [2024-11-13 16:05:04,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:04,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:05:04,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:04,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:05:04,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:05:04,080 INFO L87 Difference]: Start difference. First operand 340 states and 502 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:04,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:04,173 INFO L93 Difference]: Finished difference Result 530 states and 763 transitions. [2024-11-13 16:05:04,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:05:04,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 108 [2024-11-13 16:05:04,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:04,182 INFO L225 Difference]: With dead ends: 530 [2024-11-13 16:05:04,182 INFO L226 Difference]: Without dead ends: 343 [2024-11-13 16:05:04,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:05:04,186 INFO L432 NwaCegarLoop]: 500 mSDtfsCounter, 1 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 998 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 [2024-11-13 16:05:04,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 998 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:05:04,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-13 16:05:04,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 342. [2024-11-13 16:05:04,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 265 states have (on average 1.5056603773584907) internal successors, (399), 268 states have internal predecessors, (399), 53 states have call successors, (53), 23 states have call predecessors, (53), 23 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-13 16:05:04,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 504 transitions. [2024-11-13 16:05:04,216 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 504 transitions. Word has length 108 [2024-11-13 16:05:04,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:04,217 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 504 transitions. [2024-11-13 16:05:04,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:04,218 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 504 transitions. [2024-11-13 16:05:04,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-13 16:05:04,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:04,223 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 16:05:04,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:04,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:05:04,428 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:04,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:04,429 INFO L85 PathProgramCache]: Analyzing trace with hash 482925693, now seen corresponding path program 1 times [2024-11-13 16:05:04,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:04,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281014691] [2024-11-13 16:05:04,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:04,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:04,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 16:05:04,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 16:05:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:05:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-13 16:05:04,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 16:05:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 16:05:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 16:05:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 16:05:04,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 16:05:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-13 16:05:04,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:05:04,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:04,982 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 16:05:04,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:04,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281014691] [2024-11-13 16:05:04,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281014691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:05:04,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929957595] [2024-11-13 16:05:04,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:04,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:05:04,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:04,986 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:05:04,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 16:05:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:05,458 INFO L255 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:05:05,464 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:05,516 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-13 16:05:05,517 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:05:05,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929957595] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:05,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:05:05,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-13 16:05:05,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725022197] [2024-11-13 16:05:05,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:05,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:05:05,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:05,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:05:05,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:05:05,521 INFO L87 Difference]: Start difference. First operand 342 states and 504 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:05,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:05,574 INFO L93 Difference]: Finished difference Result 714 states and 1067 transitions. [2024-11-13 16:05:05,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:05:05,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2024-11-13 16:05:05,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:05,579 INFO L225 Difference]: With dead ends: 714 [2024-11-13 16:05:05,579 INFO L226 Difference]: Without dead ends: 399 [2024-11-13 16:05:05,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:05:05,585 INFO L432 NwaCegarLoop]: 514 mSDtfsCounter, 107 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 968 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 [2024-11-13 16:05:05,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 968 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:05:05,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-13 16:05:05,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 391. [2024-11-13 16:05:05,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 303 states have (on average 1.5214521452145215) internal successors, (461), 306 states have internal predecessors, (461), 64 states have call successors, (64), 23 states have call predecessors, (64), 23 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-13 16:05:05,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 588 transitions. [2024-11-13 16:05:05,629 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 588 transitions. Word has length 117 [2024-11-13 16:05:05,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:05,630 INFO L471 AbstractCegarLoop]: Abstraction has 391 states and 588 transitions. [2024-11-13 16:05:05,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:05,630 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 588 transitions. [2024-11-13 16:05:05,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 16:05:05,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:05,634 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-13 16:05:05,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:05,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:05:05,838 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:05,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:05,839 INFO L85 PathProgramCache]: Analyzing trace with hash 2029983131, now seen corresponding path program 1 times [2024-11-13 16:05:05,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:05,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010188635] [2024-11-13 16:05:05,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:05,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 16:05:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 16:05:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 16:05:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-13 16:05:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-13 16:05:06,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 16:05:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 16:05:06,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 16:05:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 16:05:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 16:05:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 16:05:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,270 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 16:05:06,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:06,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010188635] [2024-11-13 16:05:06,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010188635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:05:06,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253241673] [2024-11-13 16:05:06,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:06,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:05:06,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:06,276 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:05:06,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 16:05:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:06,721 INFO L255 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 16:05:06,730 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 16:05:06,838 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:05:06,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253241673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:06,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:05:06,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-13 16:05:06,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950590297] [2024-11-13 16:05:06,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:06,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:05:06,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:06,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:05:06,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:05:06,840 INFO L87 Difference]: Start difference. First operand 391 states and 588 transitions. Second operand has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-13 16:05:06,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:06,971 INFO L93 Difference]: Finished difference Result 773 states and 1166 transitions. [2024-11-13 16:05:06,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:05:06,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 118 [2024-11-13 16:05:06,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:06,976 INFO L225 Difference]: With dead ends: 773 [2024-11-13 16:05:06,977 INFO L226 Difference]: Without dead ends: 393 [2024-11-13 16:05:06,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:05:06,980 INFO L432 NwaCegarLoop]: 494 mSDtfsCounter, 2 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1965 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 [2024-11-13 16:05:06,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1965 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 16:05:06,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-13 16:05:07,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2024-11-13 16:05:07,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 304 states have (on average 1.519736842105263) internal successors, (462), 308 states have internal predecessors, (462), 64 states have call successors, (64), 23 states have call predecessors, (64), 24 states have return successors, (65), 63 states have call predecessors, (65), 63 states have call successors, (65) [2024-11-13 16:05:07,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 591 transitions. [2024-11-13 16:05:07,029 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 591 transitions. Word has length 118 [2024-11-13 16:05:07,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:07,031 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 591 transitions. [2024-11-13 16:05:07,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.5) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-13 16:05:07,032 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 591 transitions. [2024-11-13 16:05:07,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-13 16:05:07,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:07,036 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:07,063 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 16:05:07,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:05:07,241 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:07,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:07,242 INFO L85 PathProgramCache]: Analyzing trace with hash 323662339, now seen corresponding path program 1 times [2024-11-13 16:05:07,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:07,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434277938] [2024-11-13 16:05:07,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:07,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:07,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:07,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:07,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:07,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-13 16:05:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-13 16:05:07,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-13 16:05:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 16:05:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 16:05:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 16:05:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:05:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 16:05:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 16:05:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 16:05:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:07,721 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 16:05:07,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:07,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434277938] [2024-11-13 16:05:07,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434277938] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:05:07,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662887856] [2024-11-13 16:05:07,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:07,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:05:07,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:07,724 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:05:07,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 16:05:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:08,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 16:05:08,151 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:08,248 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 16:05:08,252 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:05:08,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662887856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:08,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:05:08,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-13 16:05:08,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467001625] [2024-11-13 16:05:08,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:08,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 16:05:08,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:08,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 16:05:08,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-13 16:05:08,256 INFO L87 Difference]: Start difference. First operand 393 states and 591 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-13 16:05:08,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:08,373 INFO L93 Difference]: Finished difference Result 775 states and 1171 transitions. [2024-11-13 16:05:08,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 16:05:08,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 119 [2024-11-13 16:05:08,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:08,379 INFO L225 Difference]: With dead ends: 775 [2024-11-13 16:05:08,380 INFO L226 Difference]: Without dead ends: 395 [2024-11-13 16:05:08,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2024-11-13 16:05:08,385 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 2 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:08,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1951 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 16:05:08,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-13 16:05:08,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-11-13 16:05:08,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 305 states have (on average 1.518032786885246) internal successors, (463), 310 states have internal predecessors, (463), 64 states have call successors, (64), 23 states have call predecessors, (64), 25 states have return successors, (70), 63 states have call predecessors, (70), 63 states have call successors, (70) [2024-11-13 16:05:08,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 597 transitions. [2024-11-13 16:05:08,423 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 597 transitions. Word has length 119 [2024-11-13 16:05:08,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:08,423 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 597 transitions. [2024-11-13 16:05:08,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-13 16:05:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 597 transitions. [2024-11-13 16:05:08,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-13 16:05:08,428 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:08,428 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:08,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 16:05:08,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:05:08,629 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:08,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:08,630 INFO L85 PathProgramCache]: Analyzing trace with hash 1825815575, now seen corresponding path program 1 times [2024-11-13 16:05:08,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:08,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384848247] [2024-11-13 16:05:08,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:08,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:08,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:08,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:08,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:08,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:08,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:08,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:08,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:08,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:08,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 16:05:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:08,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-13 16:05:08,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:08,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-13 16:05:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:08,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 16:05:09,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:09,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 16:05:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:09,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 16:05:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:09,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 16:05:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:09,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 16:05:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:09,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-13 16:05:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:09,021 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 16:05:09,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:09,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384848247] [2024-11-13 16:05:09,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384848247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:09,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:09,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:05:09,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760788916] [2024-11-13 16:05:09,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:09,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:05:09,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:09,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:05:09,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:05:09,024 INFO L87 Difference]: Start difference. First operand 395 states and 597 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-13 16:05:11,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:11,785 INFO L93 Difference]: Finished difference Result 882 states and 1335 transitions. [2024-11-13 16:05:11,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 16:05:11,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2024-11-13 16:05:11,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:11,790 INFO L225 Difference]: With dead ends: 882 [2024-11-13 16:05:11,790 INFO L226 Difference]: Without dead ends: 510 [2024-11-13 16:05:11,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:05:11,793 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1104 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2260 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 2260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:11,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 1108 Invalid, 2595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 2260 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 16:05:11,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2024-11-13 16:05:11,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 395. [2024-11-13 16:05:11,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 305 states have (on average 1.518032786885246) internal successors, (463), 310 states have internal predecessors, (463), 64 states have call successors, (64), 23 states have call predecessors, (64), 25 states have return successors, (69), 63 states have call predecessors, (69), 63 states have call successors, (69) [2024-11-13 16:05:11,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 596 transitions. [2024-11-13 16:05:11,862 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 596 transitions. Word has length 120 [2024-11-13 16:05:11,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:11,864 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 596 transitions. [2024-11-13 16:05:11,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-13 16:05:11,864 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 596 transitions. [2024-11-13 16:05:11,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 16:05:11,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:11,872 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:11,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 16:05:11,872 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:11,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:11,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1099855263, now seen corresponding path program 2 times [2024-11-13 16:05:11,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:11,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362961819] [2024-11-13 16:05:11,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:11,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:12,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:12,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:12,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-13 16:05:12,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-13 16:05:12,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-13 16:05:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 16:05:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 16:05:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 16:05:12,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 16:05:12,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 16:05:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-13 16:05:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:12,185 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 16:05:12,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:12,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362961819] [2024-11-13 16:05:12,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362961819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:12,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:12,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-13 16:05:12,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269877036] [2024-11-13 16:05:12,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:12,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 16:05:12,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:12,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 16:05:12,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-13 16:05:12,189 INFO L87 Difference]: Start difference. First operand 395 states and 596 transitions. Second operand has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-13 16:05:15,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:15,006 INFO L93 Difference]: Finished difference Result 884 states and 1338 transitions. [2024-11-13 16:05:15,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 16:05:15,007 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2024-11-13 16:05:15,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:15,016 INFO L225 Difference]: With dead ends: 884 [2024-11-13 16:05:15,018 INFO L226 Difference]: Without dead ends: 512 [2024-11-13 16:05:15,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-13 16:05:15,020 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1100 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 2267 mSolverCounterSat, 335 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 1108 SdHoareTripleChecker+Invalid, 2602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 335 IncrementalHoareTripleChecker+Valid, 2267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:15,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 1108 Invalid, 2602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [335 Valid, 2267 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 16:05:15,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-13 16:05:15,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 397. [2024-11-13 16:05:15,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 306 states have (on average 1.5163398692810457) internal successors, (464), 312 states have internal predecessors, (464), 64 states have call successors, (64), 23 states have call predecessors, (64), 26 states have return successors, (71), 63 states have call predecessors, (71), 63 states have call successors, (71) [2024-11-13 16:05:15,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 599 transitions. [2024-11-13 16:05:15,098 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 599 transitions. Word has length 121 [2024-11-13 16:05:15,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:15,099 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 599 transitions. [2024-11-13 16:05:15,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.625) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-13 16:05:15,099 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 599 transitions. [2024-11-13 16:05:15,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-13 16:05:15,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:15,102 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:15,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 16:05:15,103 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:15,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:15,103 INFO L85 PathProgramCache]: Analyzing trace with hash -55324046, now seen corresponding path program 1 times [2024-11-13 16:05:15,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:15,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591864356] [2024-11-13 16:05:15,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:15,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:15,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 16:05:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:05:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 16:05:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-13 16:05:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 16:05:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 16:05:15,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 16:05:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 16:05:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:15,410 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 16:05:15,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:15,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591864356] [2024-11-13 16:05:15,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591864356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:15,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:15,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 16:05:15,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731696978] [2024-11-13 16:05:15,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:15,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 16:05:15,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:15,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 16:05:15,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:05:15,413 INFO L87 Difference]: Start difference. First operand 397 states and 599 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 16:05:19,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:19,143 INFO L93 Difference]: Finished difference Result 882 states and 1333 transitions. [2024-11-13 16:05:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:05:19,144 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 122 [2024-11-13 16:05:19,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:19,149 INFO L225 Difference]: With dead ends: 882 [2024-11-13 16:05:19,149 INFO L226 Difference]: Without dead ends: 512 [2024-11-13 16:05:19,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-13 16:05:19,151 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 1104 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3797 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 1535 SdHoareTripleChecker+Invalid, 4137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 3797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:19,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 1535 Invalid, 4137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [340 Valid, 3797 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 16:05:19,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2024-11-13 16:05:19,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 397. [2024-11-13 16:05:19,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 306 states have (on average 1.5163398692810457) internal successors, (464), 312 states have internal predecessors, (464), 64 states have call successors, (64), 23 states have call predecessors, (64), 26 states have return successors, (70), 63 states have call predecessors, (70), 63 states have call successors, (70) [2024-11-13 16:05:19,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 598 transitions. [2024-11-13 16:05:19,201 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 598 transitions. Word has length 122 [2024-11-13 16:05:19,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:19,201 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 598 transitions. [2024-11-13 16:05:19,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 16:05:19,201 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 598 transitions. [2024-11-13 16:05:19,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-13 16:05:19,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:19,204 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:19,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:05:19,205 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:19,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:19,205 INFO L85 PathProgramCache]: Analyzing trace with hash -460994138, now seen corresponding path program 2 times [2024-11-13 16:05:19,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:19,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840833601] [2024-11-13 16:05:19,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:19,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:19,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:19,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:19,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:19,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-13 16:05:19,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 16:05:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 16:05:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 16:05:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 16:05:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-13 16:05:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 16:05:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-13 16:05:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:19,574 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 16:05:19,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:19,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840833601] [2024-11-13 16:05:19,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840833601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:19,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:19,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 16:05:19,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611048944] [2024-11-13 16:05:19,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:19,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 16:05:19,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:19,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 16:05:19,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-13 16:05:19,577 INFO L87 Difference]: Start difference. First operand 397 states and 598 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 16:05:23,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:23,175 INFO L93 Difference]: Finished difference Result 884 states and 1339 transitions. [2024-11-13 16:05:23,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 16:05:23,177 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 123 [2024-11-13 16:05:23,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:23,184 INFO L225 Difference]: With dead ends: 884 [2024-11-13 16:05:23,184 INFO L226 Difference]: Without dead ends: 514 [2024-11-13 16:05:23,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-13 16:05:23,188 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1100 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 3841 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1101 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 4178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 3841 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:23,188 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1101 Valid, 1536 Invalid, 4178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 3841 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 16:05:23,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-13 16:05:23,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 399. [2024-11-13 16:05:23,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 307 states have (on average 1.514657980456026) internal successors, (465), 314 states have internal predecessors, (465), 64 states have call successors, (64), 23 states have call predecessors, (64), 27 states have return successors, (75), 63 states have call predecessors, (75), 63 states have call successors, (75) [2024-11-13 16:05:23,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 604 transitions. [2024-11-13 16:05:23,248 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 604 transitions. Word has length 123 [2024-11-13 16:05:23,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:23,249 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 604 transitions. [2024-11-13 16:05:23,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 8 states have internal predecessors, (82), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-13 16:05:23,250 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 604 transitions. [2024-11-13 16:05:23,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-13 16:05:23,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:23,253 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:23,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 16:05:23,253 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:23,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:23,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1286846029, now seen corresponding path program 1 times [2024-11-13 16:05:23,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:23,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821523538] [2024-11-13 16:05:23,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:23,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-13 16:05:23,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 16:05:23,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-13 16:05:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 16:05:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 16:05:23,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 16:05:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:05:23,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 16:05:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,613 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-13 16:05:23,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:23,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821523538] [2024-11-13 16:05:23,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821523538] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:05:23,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446212880] [2024-11-13 16:05:23,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:23,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:05:23,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:05:23,616 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:05:23,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 16:05:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:23,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 1063 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 16:05:23,991 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:05:24,055 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:05:24,056 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:05:24,195 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:05:24,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446212880] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:05:24,197 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:05:24,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2024-11-13 16:05:24,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886801997] [2024-11-13 16:05:24,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:05:24,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 16:05:24,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:24,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 16:05:24,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-13 16:05:24,201 INFO L87 Difference]: Start difference. First operand 399 states and 604 transitions. Second operand has 15 states, 14 states have (on average 9.714285714285714) internal successors, (136), 11 states have internal predecessors, (136), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-13 16:05:27,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:27,884 INFO L93 Difference]: Finished difference Result 1234 states and 1971 transitions. [2024-11-13 16:05:27,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-13 16:05:27,885 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.714285714285714) internal successors, (136), 11 states have internal predecessors, (136), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 124 [2024-11-13 16:05:27,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:27,891 INFO L225 Difference]: With dead ends: 1234 [2024-11-13 16:05:27,892 INFO L226 Difference]: Without dead ends: 866 [2024-11-13 16:05:27,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=164, Invalid=828, Unknown=0, NotChecked=0, Total=992 [2024-11-13 16:05:27,895 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 2251 mSDsluCounter, 1575 mSDsCounter, 0 mSdLazyCounter, 3754 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 4411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 3754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:27,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 1750 Invalid, 4411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 3754 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 16:05:27,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-13 16:05:27,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 727. [2024-11-13 16:05:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 571 states have (on average 1.5691768826619965) internal successors, (896), 578 states have internal predecessors, (896), 128 states have call successors, (128), 23 states have call predecessors, (128), 27 states have return successors, (149), 127 states have call predecessors, (149), 127 states have call successors, (149) [2024-11-13 16:05:27,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1173 transitions. [2024-11-13 16:05:27,966 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1173 transitions. Word has length 124 [2024-11-13 16:05:27,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:27,966 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1173 transitions. [2024-11-13 16:05:27,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.714285714285714) internal successors, (136), 11 states have internal predecessors, (136), 4 states have call successors, (33), 6 states have call predecessors, (33), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2024-11-13 16:05:27,966 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1173 transitions. [2024-11-13 16:05:27,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 16:05:27,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:27,970 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:27,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 16:05:28,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f617b4f-53b5-400e-bf89-44b93e94ed12/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 16:05:28,175 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:28,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:28,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1694938748, now seen corresponding path program 1 times [2024-11-13 16:05:28,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:28,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076225493] [2024-11-13 16:05:28,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:28,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:28,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:28,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,277 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:28,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-13 16:05:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 16:05:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 16:05:28,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 16:05:28,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 16:05:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-13 16:05:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-13 16:05:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 16:05:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:28,313 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:05:28,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:28,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076225493] [2024-11-13 16:05:28,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076225493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:28,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:28,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:05:28,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320914254] [2024-11-13 16:05:28,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:28,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:05:28,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:28,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:05:28,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:05:28,316 INFO L87 Difference]: Start difference. First operand 727 states and 1173 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:30,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:30,131 INFO L93 Difference]: Finished difference Result 1799 states and 2970 transitions. [2024-11-13 16:05:30,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:05:30,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 127 [2024-11-13 16:05:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:30,140 INFO L225 Difference]: With dead ends: 1799 [2024-11-13 16:05:30,140 INFO L226 Difference]: Without dead ends: 1150 [2024-11-13 16:05:30,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:05:30,144 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 1203 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 382 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:30,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 880 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [382 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 16:05:30,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1150 states. [2024-11-13 16:05:30,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1150 to 1027. [2024-11-13 16:05:30,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 807 states have (on average 1.587360594795539) internal successors, (1281), 814 states have internal predecessors, (1281), 192 states have call successors, (192), 23 states have call predecessors, (192), 27 states have return successors, (223), 191 states have call predecessors, (223), 191 states have call successors, (223) [2024-11-13 16:05:30,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1696 transitions. [2024-11-13 16:05:30,228 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1696 transitions. Word has length 127 [2024-11-13 16:05:30,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:30,228 INFO L471 AbstractCegarLoop]: Abstraction has 1027 states and 1696 transitions. [2024-11-13 16:05:30,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:30,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1696 transitions. [2024-11-13 16:05:30,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-13 16:05:30,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:30,235 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:30,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 16:05:30,235 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:30,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:30,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1081753527, now seen corresponding path program 1 times [2024-11-13 16:05:30,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:30,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041480289] [2024-11-13 16:05:30,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:30,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:30,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:30,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 16:05:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 16:05:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 16:05:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 16:05:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 16:05:30,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-13 16:05:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-13 16:05:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 16:05:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:30,392 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:05:30,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:30,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041480289] [2024-11-13 16:05:30,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041480289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:30,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:30,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:05:30,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845188397] [2024-11-13 16:05:30,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:30,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:05:30,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:30,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:05:30,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:05:30,394 INFO L87 Difference]: Start difference. First operand 1027 states and 1696 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:32,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:32,023 INFO L93 Difference]: Finished difference Result 2539 states and 4250 transitions. [2024-11-13 16:05:32,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:05:32,024 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 128 [2024-11-13 16:05:32,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:32,033 INFO L225 Difference]: With dead ends: 2539 [2024-11-13 16:05:32,033 INFO L226 Difference]: Without dead ends: 1643 [2024-11-13 16:05:32,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:05:32,037 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1201 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1216 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 1659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:32,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1216 Valid, 813 Invalid, 1659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 16:05:32,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2024-11-13 16:05:32,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1520. [2024-11-13 16:05:32,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1205 states have (on average 1.595850622406639) internal successors, (1923), 1212 states have internal predecessors, (1923), 287 states have call successors, (287), 23 states have call predecessors, (287), 27 states have return successors, (318), 286 states have call predecessors, (318), 286 states have call successors, (318) [2024-11-13 16:05:32,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2528 transitions. [2024-11-13 16:05:32,143 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2528 transitions. Word has length 128 [2024-11-13 16:05:32,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:32,144 INFO L471 AbstractCegarLoop]: Abstraction has 1520 states and 2528 transitions. [2024-11-13 16:05:32,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:32,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2528 transitions. [2024-11-13 16:05:32,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 16:05:32,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:32,153 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:32,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 16:05:32,153 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:32,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:32,153 INFO L85 PathProgramCache]: Analyzing trace with hash -78212110, now seen corresponding path program 1 times [2024-11-13 16:05:32,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:32,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335844805] [2024-11-13 16:05:32,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:32,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:32,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-13 16:05:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 16:05:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,272 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-13 16:05:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 16:05:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 16:05:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-11-13 16:05:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 16:05:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-13 16:05:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:32,292 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:05:32,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:32,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335844805] [2024-11-13 16:05:32,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335844805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:32,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:32,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:05:32,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335218981] [2024-11-13 16:05:32,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:32,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:05:32,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:32,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:05:32,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:05:32,295 INFO L87 Difference]: Start difference. First operand 1520 states and 2528 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:34,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:34,057 INFO L93 Difference]: Finished difference Result 3641 states and 6168 transitions. [2024-11-13 16:05:34,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:05:34,058 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 129 [2024-11-13 16:05:34,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:34,079 INFO L225 Difference]: With dead ends: 3641 [2024-11-13 16:05:34,079 INFO L226 Difference]: Without dead ends: 2387 [2024-11-13 16:05:34,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:05:34,088 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1199 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1214 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 1647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:34,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1214 Valid, 805 Invalid, 1647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 16:05:34,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2387 states. [2024-11-13 16:05:34,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2387 to 2264. [2024-11-13 16:05:34,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2264 states, 1826 states have (on average 1.6024096385542168) internal successors, (2926), 1833 states have internal predecessors, (2926), 410 states have call successors, (410), 23 states have call predecessors, (410), 27 states have return successors, (457), 409 states have call predecessors, (457), 409 states have call successors, (457) [2024-11-13 16:05:34,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2264 states to 2264 states and 3793 transitions. [2024-11-13 16:05:34,351 INFO L78 Accepts]: Start accepts. Automaton has 2264 states and 3793 transitions. Word has length 129 [2024-11-13 16:05:34,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:34,353 INFO L471 AbstractCegarLoop]: Abstraction has 2264 states and 3793 transitions. [2024-11-13 16:05:34,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:34,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2264 states and 3793 transitions. [2024-11-13 16:05:34,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 16:05:34,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:34,370 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:34,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 16:05:34,371 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:34,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:34,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1381303606, now seen corresponding path program 1 times [2024-11-13 16:05:34,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:34,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388299055] [2024-11-13 16:05:34,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:34,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:34,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-13 16:05:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 16:05:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-13 16:05:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 16:05:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 16:05:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-13 16:05:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-13 16:05:34,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 16:05:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:34,549 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:05:34,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:34,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388299055] [2024-11-13 16:05:34,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388299055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:34,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:34,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:05:34,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090074966] [2024-11-13 16:05:34,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:34,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:05:34,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:34,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:05:34,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:05:34,552 INFO L87 Difference]: Start difference. First operand 2264 states and 3793 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:36,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:36,440 INFO L93 Difference]: Finished difference Result 5350 states and 9148 transitions. [2024-11-13 16:05:36,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:05:36,441 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2024-11-13 16:05:36,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:36,466 INFO L225 Difference]: With dead ends: 5350 [2024-11-13 16:05:36,466 INFO L226 Difference]: Without dead ends: 3571 [2024-11-13 16:05:36,474 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:05:36,476 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 1197 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 1276 mSolverCounterSat, 386 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1212 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 1662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 1276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:36,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1212 Valid, 808 Invalid, 1662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 1276 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 16:05:36,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2024-11-13 16:05:36,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3448. [2024-11-13 16:05:36,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 2831 states have (on average 1.6064994701518898) internal successors, (4548), 2838 states have internal predecessors, (4548), 589 states have call successors, (589), 23 states have call predecessors, (589), 27 states have return successors, (662), 588 states have call predecessors, (662), 588 states have call successors, (662) [2024-11-13 16:05:36,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 5799 transitions. [2024-11-13 16:05:36,760 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 5799 transitions. Word has length 130 [2024-11-13 16:05:36,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:36,761 INFO L471 AbstractCegarLoop]: Abstraction has 3448 states and 5799 transitions. [2024-11-13 16:05:36,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:36,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 5799 transitions. [2024-11-13 16:05:36,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-13 16:05:36,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:36,780 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:36,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 16:05:36,781 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:36,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:36,781 INFO L85 PathProgramCache]: Analyzing trace with hash -242608114, now seen corresponding path program 1 times [2024-11-13 16:05:36,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:36,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590419924] [2024-11-13 16:05:36,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:36,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:36,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:36,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:36,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-13 16:05:36,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 16:05:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-13 16:05:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-13 16:05:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 16:05:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 16:05:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 16:05:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-13 16:05:36,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:36,947 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:05:36,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:36,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590419924] [2024-11-13 16:05:36,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590419924] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:36,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:36,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:05:36,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853243013] [2024-11-13 16:05:36,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:36,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:05:36,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:36,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:05:36,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:05:36,951 INFO L87 Difference]: Start difference. First operand 3448 states and 5799 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:39,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:39,135 INFO L93 Difference]: Finished difference Result 8423 states and 14464 transitions. [2024-11-13 16:05:39,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:05:39,136 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2024-11-13 16:05:39,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:39,169 INFO L225 Difference]: With dead ends: 8423 [2024-11-13 16:05:39,169 INFO L226 Difference]: Without dead ends: 5712 [2024-11-13 16:05:39,181 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:05:39,181 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 1195 mSDsluCounter, 663 mSDsCounter, 0 mSdLazyCounter, 1295 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1210 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 1685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 1295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:39,182 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1210 Valid, 858 Invalid, 1685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 1295 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 16:05:39,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5712 states. [2024-11-13 16:05:39,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5712 to 5589. [2024-11-13 16:05:39,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5589 states, 4596 states have (on average 1.6000870322019147) internal successors, (7354), 4603 states have internal predecessors, (7354), 965 states have call successors, (965), 23 states have call predecessors, (965), 27 states have return successors, (1082), 964 states have call predecessors, (1082), 964 states have call successors, (1082) [2024-11-13 16:05:39,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5589 states to 5589 states and 9401 transitions. [2024-11-13 16:05:39,704 INFO L78 Accepts]: Start accepts. Automaton has 5589 states and 9401 transitions. Word has length 131 [2024-11-13 16:05:39,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:39,704 INFO L471 AbstractCegarLoop]: Abstraction has 5589 states and 9401 transitions. [2024-11-13 16:05:39,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:39,705 INFO L276 IsEmpty]: Start isEmpty. Operand 5589 states and 9401 transitions. [2024-11-13 16:05:39,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-13 16:05:39,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:39,730 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:39,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 16:05:39,730 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:39,730 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:39,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1344300718, now seen corresponding path program 1 times [2024-11-13 16:05:39,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:39,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568790227] [2024-11-13 16:05:39,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:39,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:39,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:39,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-13 16:05:39,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 16:05:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 16:05:39,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-13 16:05:39,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-13 16:05:39,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-13 16:05:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-13 16:05:39,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-13 16:05:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:39,886 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:05:39,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:39,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568790227] [2024-11-13 16:05:39,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568790227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:39,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:39,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:05:39,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62811944] [2024-11-13 16:05:39,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:39,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:05:39,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:39,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:05:39,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:05:39,888 INFO L87 Difference]: Start difference. First operand 5589 states and 9401 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:42,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:42,190 INFO L93 Difference]: Finished difference Result 13845 states and 23765 transitions. [2024-11-13 16:05:42,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:05:42,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-13 16:05:42,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:42,246 INFO L225 Difference]: With dead ends: 13845 [2024-11-13 16:05:42,247 INFO L226 Difference]: Without dead ends: 9395 [2024-11-13 16:05:42,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:05:42,262 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 1193 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 1287 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 1287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:42,262 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 843 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 1287 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 16:05:42,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9395 states. [2024-11-13 16:05:42,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9395 to 9272. [2024-11-13 16:05:42,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9272 states, 7673 states have (on average 1.5979408314870325) internal successors, (12261), 7680 states have internal predecessors, (12261), 1571 states have call successors, (1571), 23 states have call predecessors, (1571), 27 states have return successors, (1766), 1570 states have call predecessors, (1766), 1570 states have call successors, (1766) [2024-11-13 16:05:42,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9272 states to 9272 states and 15598 transitions. [2024-11-13 16:05:42,898 INFO L78 Accepts]: Start accepts. Automaton has 9272 states and 15598 transitions. Word has length 132 [2024-11-13 16:05:42,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:42,899 INFO L471 AbstractCegarLoop]: Abstraction has 9272 states and 15598 transitions. [2024-11-13 16:05:42,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:42,904 INFO L276 IsEmpty]: Start isEmpty. Operand 9272 states and 15598 transitions. [2024-11-13 16:05:42,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 16:05:42,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:42,935 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:42,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 16:05:42,936 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:42,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:42,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1330112624, now seen corresponding path program 1 times [2024-11-13 16:05:42,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:42,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901075185] [2024-11-13 16:05:42,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:42,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:43,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:43,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:43,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:43,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-13 16:05:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-13 16:05:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-13 16:05:43,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-13 16:05:43,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-13 16:05:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-13 16:05:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-13 16:05:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2024-11-13 16:05:43,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:43,108 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:05:43,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:43,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901075185] [2024-11-13 16:05:43,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901075185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:43,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:43,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:05:43,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435285431] [2024-11-13 16:05:43,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:43,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:05:43,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:43,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:05:43,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:05:43,111 INFO L87 Difference]: Start difference. First operand 9272 states and 15598 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:45,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:45,556 INFO L93 Difference]: Finished difference Result 24029 states and 41206 transitions. [2024-11-13 16:05:45,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:05:45,557 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2024-11-13 16:05:45,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:45,643 INFO L225 Difference]: With dead ends: 24029 [2024-11-13 16:05:45,644 INFO L226 Difference]: Without dead ends: 16348 [2024-11-13 16:05:45,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:05:45,672 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 1191 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 387 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 1701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 387 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:45,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 870 Invalid, 1701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [387 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 16:05:45,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16348 states. [2024-11-13 16:05:46,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16348 to 16225. [2024-11-13 16:05:46,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16225 states, 13423 states have (on average 1.5891380466363705) internal successors, (21331), 13430 states have internal predecessors, (21331), 2774 states have call successors, (2774), 23 states have call predecessors, (2774), 27 states have return successors, (3113), 2773 states have call predecessors, (3113), 2773 states have call successors, (3113) [2024-11-13 16:05:46,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16225 states to 16225 states and 27218 transitions. [2024-11-13 16:05:46,705 INFO L78 Accepts]: Start accepts. Automaton has 16225 states and 27218 transitions. Word has length 133 [2024-11-13 16:05:46,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:46,705 INFO L471 AbstractCegarLoop]: Abstraction has 16225 states and 27218 transitions. [2024-11-13 16:05:46,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:46,706 INFO L276 IsEmpty]: Start isEmpty. Operand 16225 states and 27218 transitions. [2024-11-13 16:05:46,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-13 16:05:46,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:46,741 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:46,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 16:05:46,741 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:46,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:46,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1196375247, now seen corresponding path program 1 times [2024-11-13 16:05:46,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:46,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598731441] [2024-11-13 16:05:46,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:46,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,841 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:46,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 16:05:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-13 16:05:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 16:05:46,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-13 16:05:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-11-13 16:05:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-13 16:05:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-13 16:05:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-13 16:05:46,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:05:46,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:46,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598731441] [2024-11-13 16:05:46,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598731441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:46,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:46,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:05:46,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707916059] [2024-11-13 16:05:46,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:46,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:05:46,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:46,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:05:46,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:05:46,904 INFO L87 Difference]: Start difference. First operand 16225 states and 27218 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:50,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:50,120 INFO L93 Difference]: Finished difference Result 42995 states and 73603 transitions. [2024-11-13 16:05:50,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:05:50,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2024-11-13 16:05:50,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:50,299 INFO L225 Difference]: With dead ends: 42995 [2024-11-13 16:05:50,299 INFO L226 Difference]: Without dead ends: 29003 [2024-11-13 16:05:50,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:05:50,363 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 1189 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1262 mSolverCounterSat, 395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1204 SdHoareTripleChecker+Valid, 806 SdHoareTripleChecker+Invalid, 1657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 1262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:50,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1204 Valid, 806 Invalid, 1657 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 1262 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 16:05:50,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29003 states. [2024-11-13 16:05:51,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29003 to 28880. [2024-11-13 16:05:51,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28880 states, 24039 states have (on average 1.58484129955489) internal successors, (38098), 24046 states have internal predecessors, (38098), 4813 states have call successors, (4813), 23 states have call predecessors, (4813), 27 states have return successors, (5426), 4812 states have call predecessors, (5426), 4812 states have call successors, (5426) [2024-11-13 16:05:52,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28880 states to 28880 states and 48337 transitions. [2024-11-13 16:05:52,038 INFO L78 Accepts]: Start accepts. Automaton has 28880 states and 48337 transitions. Word has length 134 [2024-11-13 16:05:52,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:52,039 INFO L471 AbstractCegarLoop]: Abstraction has 28880 states and 48337 transitions. [2024-11-13 16:05:52,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:52,039 INFO L276 IsEmpty]: Start isEmpty. Operand 28880 states and 48337 transitions. [2024-11-13 16:05:52,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-13 16:05:52,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:52,077 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:52,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 16:05:52,078 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:52,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:52,078 INFO L85 PathProgramCache]: Analyzing trace with hash -144826062, now seen corresponding path program 1 times [2024-11-13 16:05:52,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:52,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618222535] [2024-11-13 16:05:52,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:52,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:52,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,180 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,184 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-13 16:05:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 16:05:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-13 16:05:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-13 16:05:52,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2024-11-13 16:05:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2024-11-13 16:05:52,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-13 16:05:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-13 16:05:52,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:52,240 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:05:52,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:52,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618222535] [2024-11-13 16:05:52,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618222535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:52,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:52,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:05:52,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835975875] [2024-11-13 16:05:52,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:52,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:05:52,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:52,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:05:52,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:05:52,243 INFO L87 Difference]: Start difference. First operand 28880 states and 48337 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:55,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:05:55,588 INFO L93 Difference]: Finished difference Result 78757 states and 133967 transitions. [2024-11-13 16:05:55,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:05:55,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2024-11-13 16:05:55,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:05:55,886 INFO L225 Difference]: With dead ends: 78757 [2024-11-13 16:05:55,886 INFO L226 Difference]: Without dead ends: 52882 [2024-11-13 16:05:55,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:05:55,984 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 1187 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 1267 mSolverCounterSat, 394 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 394 IncrementalHoareTripleChecker+Valid, 1267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:05:55,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 811 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [394 Valid, 1267 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 16:05:56,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52882 states. [2024-11-13 16:05:58,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52882 to 52759. [2024-11-13 16:05:58,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52759 states, 44203 states have (on average 1.579100965997783) internal successors, (69801), 44210 states have internal predecessors, (69801), 8528 states have call successors, (8528), 23 states have call predecessors, (8528), 27 states have return successors, (9673), 8527 states have call predecessors, (9673), 8527 states have call successors, (9673) [2024-11-13 16:05:59,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52759 states to 52759 states and 88002 transitions. [2024-11-13 16:05:59,113 INFO L78 Accepts]: Start accepts. Automaton has 52759 states and 88002 transitions. Word has length 135 [2024-11-13 16:05:59,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:05:59,114 INFO L471 AbstractCegarLoop]: Abstraction has 52759 states and 88002 transitions. [2024-11-13 16:05:59,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:05:59,114 INFO L276 IsEmpty]: Start isEmpty. Operand 52759 states and 88002 transitions. [2024-11-13 16:05:59,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-13 16:05:59,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:05:59,157 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:05:59,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 16:05:59,158 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:05:59,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:05:59,158 INFO L85 PathProgramCache]: Analyzing trace with hash -590811249, now seen corresponding path program 1 times [2024-11-13 16:05:59,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:05:59,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948540130] [2024-11-13 16:05:59,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:05:59,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:05:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:05:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:05:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:05:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:05:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:05:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:05:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-13 16:05:59,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-13 16:05:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-13 16:05:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 16:05:59,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 16:05:59,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-13 16:05:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-13 16:05:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-13 16:05:59,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:05:59,307 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:05:59,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:05:59,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948540130] [2024-11-13 16:05:59,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948540130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:05:59,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:05:59,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 16:05:59,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255503791] [2024-11-13 16:05:59,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:05:59,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 16:05:59,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:05:59,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 16:05:59,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 16:05:59,310 INFO L87 Difference]: Start difference. First operand 52759 states and 88002 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:06:03,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:03,952 INFO L93 Difference]: Finished difference Result 98528 states and 167897 transitions. [2024-11-13 16:06:03,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:06:03,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2024-11-13 16:06:03,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:04,343 INFO L225 Difference]: With dead ends: 98528 [2024-11-13 16:06:04,343 INFO L226 Difference]: Without dead ends: 98341 [2024-11-13 16:06:04,380 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-13 16:06:04,384 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 1182 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 1285 mSolverCounterSat, 385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 385 IncrementalHoareTripleChecker+Valid, 1285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:04,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 846 Invalid, 1670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [385 Valid, 1285 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 16:06:04,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98341 states. [2024-11-13 16:06:07,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98341 to 98218. [2024-11-13 16:06:07,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98218 states, 82863 states have (on average 1.5718475073313782) internal successors, (130248), 82870 states have internal predecessors, (130248), 15327 states have call successors, (15327), 23 states have call predecessors, (15327), 27 states have return successors, (17518), 15326 states have call predecessors, (17518), 15326 states have call successors, (17518) [2024-11-13 16:06:08,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98218 states to 98218 states and 163093 transitions. [2024-11-13 16:06:08,174 INFO L78 Accepts]: Start accepts. Automaton has 98218 states and 163093 transitions. Word has length 136 [2024-11-13 16:06:08,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:06:08,175 INFO L471 AbstractCegarLoop]: Abstraction has 98218 states and 163093 transitions. [2024-11-13 16:06:08,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 16:06:08,175 INFO L276 IsEmpty]: Start isEmpty. Operand 98218 states and 163093 transitions. [2024-11-13 16:06:08,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-13 16:06:08,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:06:08,255 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:06:08,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 16:06:08,255 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:06:08,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:06:08,256 INFO L85 PathProgramCache]: Analyzing trace with hash -639892847, now seen corresponding path program 1 times [2024-11-13 16:06:08,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:06:08,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586437789] [2024-11-13 16:06:08,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:06:08,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:06:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:08,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-13 16:06:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:08,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-13 16:06:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:08,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-13 16:06:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:08,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-13 16:06:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:08,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-13 16:06:08,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:08,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 16:06:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:08,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-13 16:06:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:08,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-13 16:06:08,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:08,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-11-13 16:06:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:08,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-13 16:06:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:08,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-13 16:06:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:08,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 16:06:08,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:09,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 16:06:09,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:09,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-13 16:06:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:06:09,010 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 16:06:09,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:06:09,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586437789] [2024-11-13 16:06:09,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586437789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:06:09,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:06:09,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-13 16:06:09,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919495570] [2024-11-13 16:06:09,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:06:09,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 16:06:09,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:06:09,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 16:06:09,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2024-11-13 16:06:09,013 INFO L87 Difference]: Start difference. First operand 98218 states and 163093 transitions. Second operand has 18 states, 16 states have (on average 5.6875) internal successors, (91), 12 states have internal predecessors, (91), 6 states have call successors, (16), 7 states have call predecessors, (16), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-13 16:06:23,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:06:23,744 INFO L93 Difference]: Finished difference Result 196346 states and 337902 transitions. [2024-11-13 16:06:23,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-13 16:06:23,745 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 5.6875) internal successors, (91), 12 states have internal predecessors, (91), 6 states have call successors, (16), 7 states have call predecessors, (16), 4 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 137 [2024-11-13 16:06:23,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:06:24,928 INFO L225 Difference]: With dead ends: 196346 [2024-11-13 16:06:24,928 INFO L226 Difference]: Without dead ends: 196165 [2024-11-13 16:06:24,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1382 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=900, Invalid=4070, Unknown=0, NotChecked=0, Total=4970 [2024-11-13 16:06:24,978 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 4467 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 8111 mSolverCounterSat, 1391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4467 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 9502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1391 IncrementalHoareTripleChecker+Valid, 8111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:06:24,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4467 Valid, 2980 Invalid, 9502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1391 Valid, 8111 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-13 16:06:25,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196165 states.