./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product12.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_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d7925e6725ebc9ccc1628dac3a92336bad7d7149419f1b3b2e679ed4e3055d5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:47:01,957 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:47:02,069 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:47:02,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:47:02,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:47:02,113 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:47:02,114 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:47:02,114 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:47:02,114 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:47:02,114 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:47:02,114 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:47:02,115 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:47:02,115 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:47:02,115 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:47:02,115 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:47:02,115 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:47:02,115 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:47:02,115 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:47:02,116 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:47:02,116 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:47:02,116 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:47:02,117 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:47:02,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:47:02,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:47:02,118 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:47:02,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:47:02,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:47:02,118 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:47:02,118 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:47:02,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:47:02,119 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:47:02,119 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:47:02,119 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:47:02,119 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:47:02,120 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:47:02,120 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:47:02,120 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:47:02,120 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:47:02,120 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:47:02,121 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:47:02,121 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:47:02,121 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:47:02,121 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:47:02,121 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:47:02,121 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:47:02,122 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:47:02,122 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:47:02,122 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E 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 -> Taipan 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 -> 4d7925e6725ebc9ccc1628dac3a92336bad7d7149419f1b3b2e679ed4e3055d5 [2024-11-14 03:47:02,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:47:02,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:47:02,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:47:02,498 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:47:02,499 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:47:02,500 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec9_product12.cil.c Unable to find full path for "g++" [2024-11-14 03:47:04,528 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:47:04,948 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:47:04,949 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/sv-benchmarks/c/product-lines/email_spec9_product12.cil.c [2024-11-14 03:47:04,970 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/data/adc38025e/944eb4b68be84c8cb14bb700563744ff/FLAGca44f3e40 [2024-11-14 03:47:04,990 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/data/adc38025e/944eb4b68be84c8cb14bb700563744ff [2024-11-14 03:47:04,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:47:04,994 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:47:04,995 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:47:04,996 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:47:04,999 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:47:05,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:05,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c635912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:05, skipping insertion in model container [2024-11-14 03:47:05,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:47:04" (1/1) ... [2024-11-14 03:47:05,066 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:47:05,682 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_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/sv-benchmarks/c/product-lines/email_spec9_product12.cil.c[29763,29776] [2024-11-14 03:47:05,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:47:05,844 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:47:05,854 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [48] [2024-11-14 03:47:05,855 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [105] [2024-11-14 03:47:05,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [122] [2024-11-14 03:47:05,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [160] [2024-11-14 03:47:05,857 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [405] [2024-11-14 03:47:05,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [811] [2024-11-14 03:47:05,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1091] [2024-11-14 03:47:05,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1457] [2024-11-14 03:47:05,858 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1466] [2024-11-14 03:47:05,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1570] [2024-11-14 03:47:05,860 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2639] [2024-11-14 03:47:05,981 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_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/sv-benchmarks/c/product-lines/email_spec9_product12.cil.c[29763,29776] [2024-11-14 03:47:06,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:47:06,063 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:47:06,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06 WrapperNode [2024-11-14 03:47:06,065 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:47:06,066 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:47:06,066 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:47:06,066 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:47:06,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06" (1/1) ... [2024-11-14 03:47:06,102 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06" (1/1) ... [2024-11-14 03:47:06,172 INFO L138 Inliner]: procedures = 123, calls = 177, calls flagged for inlining = 51, calls inlined = 41, statements flattened = 839 [2024-11-14 03:47:06,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:47:06,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:47:06,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:47:06,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:47:06,187 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06" (1/1) ... [2024-11-14 03:47:06,187 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06" (1/1) ... [2024-11-14 03:47:06,196 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06" (1/1) ... [2024-11-14 03:47:06,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06" (1/1) ... [2024-11-14 03:47:06,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06" (1/1) ... [2024-11-14 03:47:06,242 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06" (1/1) ... [2024-11-14 03:47:06,245 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06" (1/1) ... [2024-11-14 03:47:06,254 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06" (1/1) ... [2024-11-14 03:47:06,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:47:06,263 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:47:06,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:47:06,264 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:47:06,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06" (1/1) ... [2024-11-14 03:47:06,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:47:06,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:47:06,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:47:06,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:47:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-14 03:47:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-14 03:47:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-14 03:47:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-14 03:47:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 03:47:06,345 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 03:47:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 03:47:06,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 03:47:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 03:47:06,345 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 03:47:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-14 03:47:06,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-14 03:47:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 03:47:06,347 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 03:47:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 03:47:06,347 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 03:47:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:47:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 03:47:06,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 03:47:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 03:47:06,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 03:47:06,348 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 03:47:06,351 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 03:47:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 03:47:06,352 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 03:47:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-14 03:47:06,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-14 03:47:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 03:47:06,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 03:47:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:47:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 03:47:06,352 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 03:47:06,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:47:06,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:47:06,566 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:47:06,568 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:47:07,551 INFO L? ?]: Removed 339 outVars from TransFormulas that were not future-live. [2024-11-14 03:47:07,552 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:47:08,288 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:47:08,289 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:47:08,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:47:08 BoogieIcfgContainer [2024-11-14 03:47:08,289 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:47:08,292 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:47:08,292 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:47:08,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:47:08,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:47:04" (1/3) ... [2024-11-14 03:47:08,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55999784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:47:08, skipping insertion in model container [2024-11-14 03:47:08,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:47:06" (2/3) ... [2024-11-14 03:47:08,306 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55999784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:47:08, skipping insertion in model container [2024-11-14 03:47:08,306 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:47:08" (3/3) ... [2024-11-14 03:47:08,308 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product12.cil.c [2024-11-14 03:47:08,330 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:47:08,334 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec9_product12.cil.c that has 16 procedures, 140 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:47:08,482 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:47:08,503 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=FINITE_AUTOMATA, 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;@595cb7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:47:08,504 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:47:08,510 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 88 states have internal predecessors, (117), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-14 03:47:08,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 03:47:08,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:47:08,527 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 03:47:08,528 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:47:08,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:47:08,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1835823401, now seen corresponding path program 1 times [2024-11-14 03:47:08,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:47:08,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639979759] [2024-11-14 03:47:08,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:08,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:47:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:09,143 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:47:09,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:47:09,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639979759] [2024-11-14 03:47:09,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639979759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:47:09,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:47:09,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:47:09,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304360830] [2024-11-14 03:47:09,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:47:09,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:47:09,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:47:09,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:47:09,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:47:09,196 INFO L87 Difference]: Start difference. First operand has 140 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 88 states have internal predecessors, (117), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:47:09,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:47:09,360 INFO L93 Difference]: Finished difference Result 197 states and 268 transitions. [2024-11-14 03:47:09,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:47:09,365 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 53 [2024-11-14 03:47:09,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:47:09,383 INFO L225 Difference]: With dead ends: 197 [2024-11-14 03:47:09,383 INFO L226 Difference]: Without dead ends: 137 [2024-11-14 03:47:09,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:47:09,396 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:47:09,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 168 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:47:09,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-14 03:47:09,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-14 03:47:09,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.353658536585366) internal successors, (111), 85 states have internal predecessors, (111), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 03:47:09,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 188 transitions. [2024-11-14 03:47:09,488 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 188 transitions. Word has length 53 [2024-11-14 03:47:09,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:47:09,492 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 188 transitions. [2024-11-14 03:47:09,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:47:09,492 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 188 transitions. [2024-11-14 03:47:09,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 03:47:09,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:47:09,497 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 03:47:09,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:47:09,499 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:47:09,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:47:09,499 INFO L85 PathProgramCache]: Analyzing trace with hash -564918329, now seen corresponding path program 1 times [2024-11-14 03:47:09,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:47:09,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155714267] [2024-11-14 03:47:09,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:09,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:47:09,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:09,894 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:47:09,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:47:09,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155714267] [2024-11-14 03:47:09,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155714267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:47:09,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:47:09,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:47:09,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519973912] [2024-11-14 03:47:09,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:47:09,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:47:09,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:47:09,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:47:09,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:47:09,901 INFO L87 Difference]: Start difference. First operand 137 states and 188 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:47:10,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:47:10,032 INFO L93 Difference]: Finished difference Result 193 states and 256 transitions. [2024-11-14 03:47:10,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:47:10,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 54 [2024-11-14 03:47:10,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:47:10,038 INFO L225 Difference]: With dead ends: 193 [2024-11-14 03:47:10,038 INFO L226 Difference]: Without dead ends: 139 [2024-11-14 03:47:10,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:47:10,043 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:47:10,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 329 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:47:10,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-14 03:47:10,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-14 03:47:10,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.3452380952380953) internal successors, (113), 87 states have internal predecessors, (113), 39 states have call successors, (39), 15 states have call predecessors, (39), 15 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 03:47:10,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 190 transitions. [2024-11-14 03:47:10,073 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 190 transitions. Word has length 54 [2024-11-14 03:47:10,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:47:10,074 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 190 transitions. [2024-11-14 03:47:10,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:47:10,075 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 190 transitions. [2024-11-14 03:47:10,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 03:47:10,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:47:10,080 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 03:47:10,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:47:10,080 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:47:10,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:47:10,081 INFO L85 PathProgramCache]: Analyzing trace with hash -232757186, now seen corresponding path program 1 times [2024-11-14 03:47:10,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:47:10,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121479303] [2024-11-14 03:47:10,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:10,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:47:10,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:10,277 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:47:10,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:47:10,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121479303] [2024-11-14 03:47:10,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121479303] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:47:10,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:47:10,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:47:10,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18131663] [2024-11-14 03:47:10,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:47:10,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:47:10,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:47:10,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:47:10,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:47:10,280 INFO L87 Difference]: Start difference. First operand 139 states and 190 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:47:10,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:47:10,420 INFO L93 Difference]: Finished difference Result 308 states and 439 transitions. [2024-11-14 03:47:10,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:47:10,421 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 59 [2024-11-14 03:47:10,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:47:10,423 INFO L225 Difference]: With dead ends: 308 [2024-11-14 03:47:10,423 INFO L226 Difference]: Without dead ends: 187 [2024-11-14 03:47:10,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:47:10,425 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 57 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:47:10,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 330 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:47:10,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-14 03:47:10,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 182. [2024-11-14 03:47:10,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 116 states have (on average 1.4310344827586208) internal successors, (166), 119 states have internal predecessors, (166), 50 states have call successors, (50), 15 states have call predecessors, (50), 15 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 03:47:10,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 265 transitions. [2024-11-14 03:47:10,448 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 265 transitions. Word has length 59 [2024-11-14 03:47:10,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:47:10,448 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 265 transitions. [2024-11-14 03:47:10,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-14 03:47:10,448 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 265 transitions. [2024-11-14 03:47:10,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-14 03:47:10,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:47:10,451 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 03:47:10,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:47:10,452 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:47:10,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:47:10,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1999928239, now seen corresponding path program 1 times [2024-11-14 03:47:10,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:47:10,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081548079] [2024-11-14 03:47:10,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:10,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:47:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:10,750 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:47:10,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:47:10,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081548079] [2024-11-14 03:47:10,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081548079] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:47:10,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836718992] [2024-11-14 03:47:10,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:47:10,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:47:10,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:47:10,754 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:47:10,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:47:11,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:47:11,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:47:11,192 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:47:11,266 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:47:11,266 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:47:11,392 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:47:11,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836718992] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:47:11,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1558145682] [2024-11-14 03:47:11,417 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2024-11-14 03:47:11,417 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:47:11,421 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:47:11,426 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:47:11,426 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:47:44,489 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-14 03:47:44,681 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 03:47:44,882 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:48:49,070 WARN L286 SmtUtils]: Spent 11.59s on a formula simplification. DAG size of input: 456 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:49:02,525 WARN L286 SmtUtils]: Spent 12.23s on a formula simplification. DAG size of input: 457 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:49:15,349 WARN L286 SmtUtils]: Spent 11.45s on a formula simplification. DAG size of input: 461 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:49:21,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1558145682] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:21,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:49:21,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 03:49:21,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952985535] [2024-11-14 03:49:21,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:21,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:49:21,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:21,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:49:21,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:49:21,195 INFO L87 Difference]: Start difference. First operand 182 states and 265 transitions. Second operand has 23 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-14 03:49:35,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:35,070 INFO L93 Difference]: Finished difference Result 378 states and 566 transitions. [2024-11-14 03:49:35,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 03:49:35,071 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) Word has length 60 [2024-11-14 03:49:35,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:35,074 INFO L225 Difference]: With dead ends: 378 [2024-11-14 03:49:35,075 INFO L226 Difference]: Without dead ends: 214 [2024-11-14 03:49:35,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 100.2s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:49:35,077 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 25 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 1696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:35,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2115 Invalid, 1696 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1686 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2024-11-14 03:49:35,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-14 03:49:35,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 205. [2024-11-14 03:49:35,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 138 states have (on average 1.4420289855072463) internal successors, (199), 141 states have internal predecessors, (199), 50 states have call successors, (50), 16 states have call predecessors, (50), 16 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-14 03:49:35,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 298 transitions. [2024-11-14 03:49:35,154 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 298 transitions. Word has length 60 [2024-11-14 03:49:35,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:35,155 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 298 transitions. [2024-11-14 03:49:35,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-14 03:49:35,156 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 298 transitions. [2024-11-14 03:49:35,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 03:49:35,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:35,158 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-14 03:49:35,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:49:35,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:35,362 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:49:35,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:35,362 INFO L85 PathProgramCache]: Analyzing trace with hash 223505106, now seen corresponding path program 1 times [2024-11-14 03:49:35,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:35,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365524458] [2024-11-14 03:49:35,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:35,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:35,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:35,550 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:49:35,550 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:35,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365524458] [2024-11-14 03:49:35,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365524458] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:49:35,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:49:35,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:49:35,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651854841] [2024-11-14 03:49:35,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:49:35,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:49:35,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:49:35,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:49:35,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:49:35,556 INFO L87 Difference]: Start difference. First operand 205 states and 298 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 03:49:35,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:49:35,770 INFO L93 Difference]: Finished difference Result 503 states and 760 transitions. [2024-11-14 03:49:35,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:49:35,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 65 [2024-11-14 03:49:35,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:49:35,774 INFO L225 Difference]: With dead ends: 503 [2024-11-14 03:49:35,775 INFO L226 Difference]: Without dead ends: 322 [2024-11-14 03:49:35,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:49:35,777 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 55 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:49:35,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 339 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:49:35,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-14 03:49:35,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 317. [2024-11-14 03:49:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 225 states have (on average 1.488888888888889) internal successors, (335), 228 states have internal predecessors, (335), 75 states have call successors, (75), 16 states have call predecessors, (75), 16 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-14 03:49:35,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 484 transitions. [2024-11-14 03:49:35,901 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 484 transitions. Word has length 65 [2024-11-14 03:49:35,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:49:35,901 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 484 transitions. [2024-11-14 03:49:35,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 03:49:35,902 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 484 transitions. [2024-11-14 03:49:35,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-14 03:49:35,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:49:35,904 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 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] [2024-11-14 03:49:35,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:49:35,905 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:49:35,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:49:35,905 INFO L85 PathProgramCache]: Analyzing trace with hash 720651752, now seen corresponding path program 1 times [2024-11-14 03:49:35,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:49:35,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879982439] [2024-11-14 03:49:35,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:35,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:49:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:49:36,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:49:36,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879982439] [2024-11-14 03:49:36,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879982439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:49:36,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594434482] [2024-11-14 03:49:36,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:49:36,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:49:36,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:49:36,083 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:49:36,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:49:36,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:49:36,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:49:36,447 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:49:36,478 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:49:36,478 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:49:36,567 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:49:36,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594434482] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:49:36,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1935993271] [2024-11-14 03:49:36,571 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-14 03:49:36,571 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:49:36,571 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:49:36,572 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:49:36,572 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:50:19,034 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-14 03:50:19,199 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 437 for LOIs [2024-11-14 03:50:20,535 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:50:47,445 WARN L286 SmtUtils]: Spent 8.46s on a formula simplification. DAG size of input: 437 DAG size of output: 437 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:51:00,156 WARN L286 SmtUtils]: Spent 12.30s on a formula simplification. DAG size of input: 461 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:51:45,013 WARN L286 SmtUtils]: Spent 10.91s on a formula simplification. DAG size of input: 458 DAG size of output: 458 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:51:57,193 WARN L286 SmtUtils]: Spent 10.93s on a formula simplification. DAG size of input: 459 DAG size of output: 458 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:52:09,646 WARN L286 SmtUtils]: Spent 11.21s on a formula simplification. DAG size of input: 463 DAG size of output: 462 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:52:26,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1935993271] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:52:26,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:52:26,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 03:52:26,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109559504] [2024-11-14 03:52:26,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:52:26,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 03:52:26,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:52:26,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 03:52:26,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=887, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:52:26,487 INFO L87 Difference]: Start difference. First operand 317 states and 484 transitions. Second operand has 27 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 8 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-11-14 03:52:45,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:52:45,931 INFO L93 Difference]: Finished difference Result 644 states and 1009 transitions. [2024-11-14 03:52:45,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 03:52:45,932 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 8 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) Word has length 66 [2024-11-14 03:52:45,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:52:45,935 INFO L225 Difference]: With dead ends: 644 [2024-11-14 03:52:45,935 INFO L226 Difference]: Without dead ends: 390 [2024-11-14 03:52:45,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 169 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 135.2s TimeCoverageRelationStatistics Valid=119, Invalid=1003, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 03:52:45,938 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 44 mSDsluCounter, 2078 mSDsCounter, 0 mSdLazyCounter, 2002 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:52:45,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 2225 Invalid, 2014 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 2002 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2024-11-14 03:52:45,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-14 03:52:46,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 331. [2024-11-14 03:52:46,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 237 states have (on average 1.4852320675105486) internal successors, (352), 240 states have internal predecessors, (352), 76 states have call successors, (76), 17 states have call predecessors, (76), 17 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-14 03:52:46,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 503 transitions. [2024-11-14 03:52:46,053 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 503 transitions. Word has length 66 [2024-11-14 03:52:46,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:52:46,054 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 503 transitions. [2024-11-14 03:52:46,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 8 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-11-14 03:52:46,054 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 503 transitions. [2024-11-14 03:52:46,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 03:52:46,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:52:46,057 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 03:52:46,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:52:46,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:52:46,258 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:52:46,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:52:46,258 INFO L85 PathProgramCache]: Analyzing trace with hash -1248120441, now seen corresponding path program 1 times [2024-11-14 03:52:46,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:52:46,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491731031] [2024-11-14 03:52:46,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:46,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:52:46,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:52:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:52:46,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:52:46,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491731031] [2024-11-14 03:52:46,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491731031] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:52:46,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661886611] [2024-11-14 03:52:46,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:52:46,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:52:46,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:52:46,460 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:52:46,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:52:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:52:46,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:52:46,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:52:46,846 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:52:46,847 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:52:46,912 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:52:46,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661886611] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:52:46,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [385476898] [2024-11-14 03:52:46,917 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2024-11-14 03:52:46,917 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:52:46,917 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:52:46,917 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:52:46,917 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:53:42,352 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-14 03:53:42,475 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 225 for LOIs [2024-11-14 03:53:42,567 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 439 for LOIs [2024-11-14 03:53:43,273 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 03:53:43,445 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 234 for LOIs [2024-11-14 03:53:43,590 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:54:48,175 WARN L286 SmtUtils]: Spent 12.57s on a formula simplification. DAG size of input: 516 DAG size of output: 511 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:55:02,208 WARN L286 SmtUtils]: Spent 13.08s on a formula simplification. DAG size of input: 517 DAG size of output: 511 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:55:31,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [385476898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:55:31,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:55:31,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2024-11-14 03:55:31,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64275981] [2024-11-14 03:55:31,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:55:31,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-14 03:55:31,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:55:31,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-14 03:55:31,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=1221, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 03:55:31,603 INFO L87 Difference]: Start difference. First operand 331 states and 503 transitions. Second operand has 32 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-14 03:55:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:55:46,555 INFO L93 Difference]: Finished difference Result 671 states and 1048 transitions. [2024-11-14 03:55:46,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-14 03:55:46,556 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) Word has length 69 [2024-11-14 03:55:46,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:55:46,559 INFO L225 Difference]: With dead ends: 671 [2024-11-14 03:55:46,560 INFO L226 Difference]: Without dead ends: 417 [2024-11-14 03:55:46,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 111.4s TimeCoverageRelationStatistics Valid=115, Invalid=1291, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 03:55:46,564 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 77 mSDsluCounter, 2091 mSDsCounter, 0 mSdLazyCounter, 2415 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 2427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:55:46,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 2235 Invalid, 2427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 2415 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2024-11-14 03:55:46,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-14 03:55:46,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 367. [2024-11-14 03:55:46,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 267 states have (on average 1.4756554307116105) internal successors, (394), 270 states have internal predecessors, (394), 79 states have call successors, (79), 20 states have call predecessors, (79), 20 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-14 03:55:46,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 551 transitions. [2024-11-14 03:55:46,731 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 551 transitions. Word has length 69 [2024-11-14 03:55:46,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:55:46,732 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 551 transitions. [2024-11-14 03:55:46,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-14 03:55:46,732 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 551 transitions. [2024-11-14 03:55:46,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 03:55:46,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:55:46,734 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 03:55:46,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:55:46,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:55:46,935 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:55:46,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:55:46,935 INFO L85 PathProgramCache]: Analyzing trace with hash 417009812, now seen corresponding path program 1 times [2024-11-14 03:55:46,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:55:46,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145922254] [2024-11-14 03:55:46,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:46,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:55:46,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:55:47,076 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:55:47,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:55:47,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145922254] [2024-11-14 03:55:47,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145922254] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:55:47,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603460829] [2024-11-14 03:55:47,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:47,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:55:47,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:55:47,079 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:55:47,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:55:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:55:47,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:55:47,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:55:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:55:47,468 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:55:47,554 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:55:47,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603460829] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:55:47,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1608866308] [2024-11-14 03:55:47,557 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2024-11-14 03:55:47,557 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:55:47,557 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:55:47,558 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:55:47,558 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:56:32,177 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-14 03:56:32,286 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 03:56:32,437 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:57:36,967 WARN L286 SmtUtils]: Spent 11.18s on a formula simplification. DAG size of input: 456 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:57:50,219 WARN L286 SmtUtils]: Spent 12.03s on a formula simplification. DAG size of input: 457 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:58:03,290 WARN L286 SmtUtils]: Spent 11.36s on a formula simplification. DAG size of input: 461 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:58:21,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1608866308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:21,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:58:21,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2024-11-14 03:58:21,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156713735] [2024-11-14 03:58:21,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:21,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-14 03:58:21,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:21,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-14 03:58:21,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=948, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 03:58:21,619 INFO L87 Difference]: Start difference. First operand 367 states and 551 transitions. Second operand has 28 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-14 03:58:33,548 WARN L286 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 465 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:58:40,178 WARN L286 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 465 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:58:46,720 WARN L286 SmtUtils]: Spent 5.85s on a formula simplification. DAG size of input: 465 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:58:57,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:57,093 INFO L93 Difference]: Finished difference Result 669 states and 1033 transitions. [2024-11-14 03:58:57,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 03:58:57,094 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) Word has length 68 [2024-11-14 03:58:57,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:57,097 INFO L225 Difference]: With dead ends: 669 [2024-11-14 03:58:57,097 INFO L226 Difference]: Without dead ends: 415 [2024-11-14 03:58:57,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 173 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 135.5s TimeCoverageRelationStatistics Valid=140, Invalid=1266, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 03:58:57,100 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 24 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 2039 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:57,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2119 Invalid, 2049 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2039 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2024-11-14 03:58:57,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-14 03:58:57,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 387. [2024-11-14 03:58:57,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 287 states have (on average 1.4773519163763067) internal successors, (424), 290 states have internal predecessors, (424), 79 states have call successors, (79), 20 states have call predecessors, (79), 20 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-14 03:58:57,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 581 transitions. [2024-11-14 03:58:57,291 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 581 transitions. Word has length 68 [2024-11-14 03:58:57,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:57,292 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 581 transitions. [2024-11-14 03:58:57,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-14 03:58:57,292 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 581 transitions. [2024-11-14 03:58:57,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 03:58:57,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:57,296 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:57,317 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 03:58:57,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:57,497 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:58:57,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:57,497 INFO L85 PathProgramCache]: Analyzing trace with hash 878220296, now seen corresponding path program 1 times [2024-11-14 03:58:57,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:57,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463894137] [2024-11-14 03:58:57,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:57,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:57,712 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-14 03:58:57,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:57,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463894137] [2024-11-14 03:58:57,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463894137] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:58:57,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:58:57,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:58:57,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388586654] [2024-11-14 03:58:57,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:58:57,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:58:57,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:58:57,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:58:57,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:58:57,716 INFO L87 Difference]: Start difference. First operand 387 states and 581 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 03:58:58,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:58,015 INFO L93 Difference]: Finished difference Result 460 states and 667 transitions. [2024-11-14 03:58:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:58:58,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 71 [2024-11-14 03:58:58,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:58,019 INFO L225 Difference]: With dead ends: 460 [2024-11-14 03:58:58,019 INFO L226 Difference]: Without dead ends: 407 [2024-11-14 03:58:58,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:58:58,021 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 117 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:58,021 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 207 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:58:58,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-14 03:58:58,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2024-11-14 03:58:58,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 298 states have (on average 1.4597315436241611) internal successors, (435), 301 states have internal predecessors, (435), 83 states have call successors, (83), 26 states have call predecessors, (83), 25 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-14 03:58:58,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 600 transitions. [2024-11-14 03:58:58,179 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 600 transitions. Word has length 71 [2024-11-14 03:58:58,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:58,180 INFO L471 AbstractCegarLoop]: Abstraction has 407 states and 600 transitions. [2024-11-14 03:58:58,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 03:58:58,180 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 600 transitions. [2024-11-14 03:58:58,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-14 03:58:58,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:58,182 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:58,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:58:58,183 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:58:58,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:58,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1851447786, now seen corresponding path program 1 times [2024-11-14 03:58:58,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:58,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318346388] [2024-11-14 03:58:58,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:58,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:58,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:58,441 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 03:58:58,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:58,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318346388] [2024-11-14 03:58:58,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318346388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:58:58,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729346094] [2024-11-14 03:58:58,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:58,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:58,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:58,445 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:58,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:58:58,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:58,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:58:58,878 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:58,945 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-14 03:58:58,945 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:59,128 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 03:58:59,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729346094] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:59,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1741040921] [2024-11-14 03:58:59,131 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 03:58:59,131 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:58:59,132 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:58:59,132 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:58:59,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:59:37,208 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-14 03:59:37,325 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 437 for LOIs [2024-11-14 03:59:38,354 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:00:01,978 WARN L286 SmtUtils]: Spent 7.35s on a formula simplification. DAG size of input: 437 DAG size of output: 437 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:00:13,290 WARN L286 SmtUtils]: Spent 10.69s on a formula simplification. DAG size of input: 461 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:01:07,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1741040921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:01:07,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:01:07,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [6, 5, 5] total 34 [2024-11-14 04:01:07,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974690396] [2024-11-14 04:01:07,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:01:07,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 04:01:07,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:01:07,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 04:01:07,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2024-11-14 04:01:07,029 INFO L87 Difference]: Start difference. First operand 407 states and 600 transitions. Second operand has 26 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 16 states have internal predecessors, (45), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-14 04:01:19,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:01:19,796 INFO L93 Difference]: Finished difference Result 767 states and 1165 transitions. [2024-11-14 04:01:19,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 04:01:19,796 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 16 states have internal predecessors, (45), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 100 [2024-11-14 04:01:19,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:01:19,799 INFO L225 Difference]: With dead ends: 767 [2024-11-14 04:01:19,800 INFO L226 Difference]: Without dead ends: 493 [2024-11-14 04:01:19,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 270 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 92.4s TimeCoverageRelationStatistics Valid=169, Invalid=1091, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 04:01:19,802 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 68 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-14 04:01:19,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2096 Invalid, 1981 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-14 04:01:19,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2024-11-14 04:01:20,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 428. [2024-11-14 04:01:20,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 316 states have (on average 1.4556962025316456) internal successors, (460), 319 states have internal predecessors, (460), 85 states have call successors, (85), 27 states have call predecessors, (85), 26 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-14 04:01:20,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 629 transitions. [2024-11-14 04:01:20,013 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 629 transitions. Word has length 100 [2024-11-14 04:01:20,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:01:20,013 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 629 transitions. [2024-11-14 04:01:20,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.6470588235294117) internal successors, (45), 16 states have internal predecessors, (45), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-14 04:01:20,013 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 629 transitions. [2024-11-14 04:01:20,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-14 04:01:20,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:01:20,016 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:01:20,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 04:01:20,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 04:01:20,217 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:01:20,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:01:20,218 INFO L85 PathProgramCache]: Analyzing trace with hash 2068607796, now seen corresponding path program 1 times [2024-11-14 04:01:20,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:01:20,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056738632] [2024-11-14 04:01:20,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:20,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:01:20,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-14 04:01:20,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:01:20,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056738632] [2024-11-14 04:01:20,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056738632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:01:20,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252174922] [2024-11-14 04:01:20,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:01:20,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:01:20,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:01:20,460 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:01:20,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28cb1ef6-c97f-4e5d-bbc1-fa30066c98de/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:01:20,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:01:20,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 1001 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:01:20,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:01:21,012 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-14 04:01:21,012 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:01:21,194 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-14 04:01:21,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252174922] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:01:21,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [9731317] [2024-11-14 04:01:21,197 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2024-11-14 04:01:21,202 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:01:21,202 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:01:21,202 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:01:21,203 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs