./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje --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 3a5e24a2ecd4f1b82ac6c9f3672db1eec2c6845bb52ab38fa9dd83ecce424f6f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:20:05,523 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:20:05,655 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:20:05,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:20:05,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:20:05,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:20:05,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:20:05,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:20:05,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:20:05,706 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:20:05,707 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:20:05,708 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:20:05,708 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:20:05,709 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:20:05,712 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:20:05,712 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:20:05,713 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:20:05,713 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:20:05,714 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:20:05,714 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:20:05,715 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:20:05,719 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:20:05,720 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:20:05,721 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:20:05,721 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:20:05,722 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:20:05,722 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:20:05,722 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:20:05,723 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:20:05,725 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:20:05,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:20:05,726 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:20:05,726 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:20:05,727 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:20:05,728 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:20:05,729 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:20:05,729 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:20:05,730 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:20:05,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:20:05,731 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:20:05,731 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:20:05,732 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:20:05,733 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:20:05,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:20:05,734 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:20:05,734 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:20:05,735 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:20:05,735 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a5e24a2ecd4f1b82ac6c9f3672db1eec2c6845bb52ab38fa9dd83ecce424f6f [2024-11-09 01:20:06,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:20:06,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:20:06,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:20:06,154 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:20:06,156 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:20:06,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec9_product15.cil.c Unable to find full path for "g++" [2024-11-09 01:20:08,517 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:20:08,946 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:20:08,947 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/sv-benchmarks/c/product-lines/email_spec9_product15.cil.c [2024-11-09 01:20:08,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/data/b50600635/ff0ed40475fe483c9f3a8e9a397ebf09/FLAG981486ea9 [2024-11-09 01:20:09,118 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/data/b50600635/ff0ed40475fe483c9f3a8e9a397ebf09 [2024-11-09 01:20:09,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:20:09,123 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:20:09,125 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:20:09,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:20:09,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:20:09,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:20:09" (1/1) ... [2024-11-09 01:20:09,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd36230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:09, skipping insertion in model container [2024-11-09 01:20:09,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:20:09" (1/1) ... [2024-11-09 01:20:09,225 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:20:09,939 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_e3f1328e-da1a-473b-b858-0feb99737088/sv-benchmarks/c/product-lines/email_spec9_product15.cil.c[51080,51093] [2024-11-09 01:20:10,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:20:10,049 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:20:10,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2024-11-09 01:20:10,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [97] [2024-11-09 01:20:10,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [509] [2024-11-09 01:20:10,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [734] [2024-11-09 01:20:10,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [752] [2024-11-09 01:20:10,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1118] [2024-11-09 01:20:10,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2198] [2024-11-09 01:20:10,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2207] [2024-11-09 01:20:10,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [2479] [2024-11-09 01:20:10,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2521] [2024-11-09 01:20:10,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2796] [2024-11-09 01:20:10,200 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_e3f1328e-da1a-473b-b858-0feb99737088/sv-benchmarks/c/product-lines/email_spec9_product15.cil.c[51080,51093] [2024-11-09 01:20:10,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:20:10,275 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:20:10,276 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10 WrapperNode [2024-11-09 01:20:10,276 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:20:10,278 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:20:10,278 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:20:10,278 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:20:10,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10" (1/1) ... [2024-11-09 01:20:10,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10" (1/1) ... [2024-11-09 01:20:10,423 INFO L138 Inliner]: procedures = 126, calls = 185, calls flagged for inlining = 55, calls inlined = 46, statements flattened = 891 [2024-11-09 01:20:10,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:20:10,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:20:10,425 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:20:10,425 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:20:10,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10" (1/1) ... [2024-11-09 01:20:10,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10" (1/1) ... [2024-11-09 01:20:10,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10" (1/1) ... [2024-11-09 01:20:10,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10" (1/1) ... [2024-11-09 01:20:10,467 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10" (1/1) ... [2024-11-09 01:20:10,476 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10" (1/1) ... [2024-11-09 01:20:10,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10" (1/1) ... [2024-11-09 01:20:10,485 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10" (1/1) ... [2024-11-09 01:20:10,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:20:10,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:20:10,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:20:10,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:20:10,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10" (1/1) ... [2024-11-09 01:20:10,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:20:10,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:10,543 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:20:10,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:20:10,665 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-09 01:20:10,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-09 01:20:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-09 01:20:10,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-09 01:20:10,670 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 01:20:10,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 01:20:10,675 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 01:20:10,675 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 01:20:10,675 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 01:20:10,676 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 01:20:10,676 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-09 01:20:10,679 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-09 01:20:10,682 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 01:20:10,683 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 01:20:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 01:20:10,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 01:20:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 01:20:10,683 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 01:20:10,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:20:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 01:20:10,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 01:20:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 01:20:10,684 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 01:20:10,684 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 01:20:10,684 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 01:20:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 01:20:10,685 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 01:20:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-09 01:20:10,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-09 01:20:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 01:20:10,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 01:20:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 01:20:10,685 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 01:20:10,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:20:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 01:20:10,686 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 01:20:10,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:20:10,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:20:10,945 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:20:10,948 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:20:12,057 INFO L? ?]: Removed 376 outVars from TransFormulas that were not future-live. [2024-11-09 01:20:12,057 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:20:12,799 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:20:12,799 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:20:12,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:20:12 BoogieIcfgContainer [2024-11-09 01:20:12,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:20:12,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:20:12,806 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:20:12,811 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:20:12,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:20:09" (1/3) ... [2024-11-09 01:20:12,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4dd878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:20:12, skipping insertion in model container [2024-11-09 01:20:12,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:20:10" (2/3) ... [2024-11-09 01:20:12,815 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4dd878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:20:12, skipping insertion in model container [2024-11-09 01:20:12,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:20:12" (3/3) ... [2024-11-09 01:20:12,818 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product15.cil.c [2024-11-09 01:20:12,847 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:20:12,848 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:20:12,956 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:20:12,969 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;@4d5cef91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:20:12,970 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:20:12,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 94 states have internal predecessors, (124), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 01:20:12,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 01:20:12,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:12,993 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, 1, 1] [2024-11-09 01:20:12,994 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:20:13,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:13,002 INFO L85 PathProgramCache]: Analyzing trace with hash -639922520, now seen corresponding path program 1 times [2024-11-09 01:20:13,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:13,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568018502] [2024-11-09 01:20:13,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:13,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:13,522 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:20:13,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:13,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568018502] [2024-11-09 01:20:13,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568018502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:20:13,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:20:13,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:20:13,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56907491] [2024-11-09 01:20:13,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:20:13,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:20:13,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:13,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:20:13,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:20:13,570 INFO L87 Difference]: Start difference. First operand has 151 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 94 states have internal predecessors, (124), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2024-11-09 01:20:13,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:13,767 INFO L93 Difference]: Finished difference Result 219 states and 294 transitions. [2024-11-09 01:20:13,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:20:13,775 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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 56 [2024-11-09 01:20:13,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:13,793 INFO L225 Difference]: With dead ends: 219 [2024-11-09 01:20:13,794 INFO L226 Difference]: Without dead ends: 148 [2024-11-09 01:20:13,801 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 [2024-11-09 01:20:13,809 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:13,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:20:13,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-09 01:20:13,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-09 01:20:13,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 91 states have internal predecessors, (118), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-09 01:20:13,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 201 transitions. [2024-11-09 01:20:13,900 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 201 transitions. Word has length 56 [2024-11-09 01:20:13,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:13,904 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 201 transitions. [2024-11-09 01:20:13,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 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) [2024-11-09 01:20:13,905 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 201 transitions. [2024-11-09 01:20:13,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 01:20:13,912 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:13,912 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, 1, 1, 1] [2024-11-09 01:20:13,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:20:13,913 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:20:13,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:13,914 INFO L85 PathProgramCache]: Analyzing trace with hash -109641972, now seen corresponding path program 1 times [2024-11-09 01:20:13,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:13,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296135995] [2024-11-09 01:20:13,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:13,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:20:14,339 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:14,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296135995] [2024-11-09 01:20:14,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296135995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:20:14,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:20:14,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:20:14,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299899100] [2024-11-09 01:20:14,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:20:14,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:20:14,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:14,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:20:14,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:20:14,347 INFO L87 Difference]: Start difference. First operand 148 states and 201 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-09 01:20:14,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:14,522 INFO L93 Difference]: Finished difference Result 215 states and 282 transitions. [2024-11-09 01:20:14,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:20:14,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 57 [2024-11-09 01:20:14,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:14,526 INFO L225 Difference]: With dead ends: 215 [2024-11-09 01:20:14,527 INFO L226 Difference]: Without dead ends: 150 [2024-11-09 01:20:14,528 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 [2024-11-09 01:20:14,529 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:14,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:20:14,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-09 01:20:14,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-09 01:20:14,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 93 states have internal predecessors, (120), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-09 01:20:14,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 203 transitions. [2024-11-09 01:20:14,563 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 203 transitions. Word has length 57 [2024-11-09 01:20:14,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:14,564 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 203 transitions. [2024-11-09 01:20:14,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-09 01:20:14,567 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 203 transitions. [2024-11-09 01:20:14,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 01:20:14,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:14,573 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] [2024-11-09 01:20:14,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:20:14,573 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:20:14,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:14,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1625848020, now seen corresponding path program 1 times [2024-11-09 01:20:14,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:14,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809348270] [2024-11-09 01:20:14,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:14,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:14,781 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:20:14,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:14,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809348270] [2024-11-09 01:20:14,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809348270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:20:14,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:20:14,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:20:14,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843153087] [2024-11-09 01:20:14,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:20:14,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:20:14,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:20:14,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:20:14,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:20:14,790 INFO L87 Difference]: Start difference. First operand 150 states and 203 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-09 01:20:14,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:20:14,951 INFO L93 Difference]: Finished difference Result 330 states and 465 transitions. [2024-11-09 01:20:14,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:20:14,952 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 62 [2024-11-09 01:20:14,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:20:14,955 INFO L225 Difference]: With dead ends: 330 [2024-11-09 01:20:14,956 INFO L226 Difference]: Without dead ends: 198 [2024-11-09 01:20:14,957 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 [2024-11-09 01:20:14,959 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 57 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:20:14,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 353 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:20:14,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-09 01:20:14,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 193. [2024-11-09 01:20:14,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 122 states have (on average 1.4180327868852458) internal successors, (173), 125 states have internal predecessors, (173), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 01:20:14,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 278 transitions. [2024-11-09 01:20:14,986 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 278 transitions. Word has length 62 [2024-11-09 01:20:14,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:20:14,987 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 278 transitions. [2024-11-09 01:20:14,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-09 01:20:14,988 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 278 transitions. [2024-11-09 01:20:14,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 01:20:14,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:20:14,991 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] [2024-11-09 01:20:14,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:20:14,992 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:20:14,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:20:14,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1017461719, now seen corresponding path program 1 times [2024-11-09 01:20:14,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:20:14,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418044282] [2024-11-09 01:20:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:14,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:20:15,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:15,303 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:20:15,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:20:15,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418044282] [2024-11-09 01:20:15,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418044282] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:20:15,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714082486] [2024-11-09 01:20:15,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:20:15,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:20:15,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:20:15,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:20:15,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:20:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:20:15,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:20:15,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:20:15,936 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:20:15,939 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:20:16,075 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:20:16,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714082486] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:20:16,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [604986416] [2024-11-09 01:20:16,112 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2024-11-09 01:20:16,112 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:20:16,118 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:20:16,126 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:20:16,129 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:20:59,177 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-09 01:20:59,456 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2024-11-09 01:20:59,659 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:22:11,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [604986416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:11,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:22:11,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 01:22:11,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108771138] [2024-11-09 01:22:11,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:11,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 01:22:11,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:22:11,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 01:22:11,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:22:11,345 INFO L87 Difference]: Start difference. First operand 193 states and 278 transitions. Second operand has 23 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 01:22:22,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:22,776 INFO L93 Difference]: Finished difference Result 400 states and 592 transitions. [2024-11-09 01:22:22,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 01:22:22,777 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 63 [2024-11-09 01:22:22,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:22,781 INFO L225 Difference]: With dead ends: 400 [2024-11-09 01:22:22,781 INFO L226 Difference]: Without dead ends: 225 [2024-11-09 01:22:22,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 75.3s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-09 01:22:22,783 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 25 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2064 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:22,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2064 Invalid, 1672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-09 01:22:22,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-09 01:22:22,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 216. [2024-11-09 01:22:22,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 144 states have (on average 1.4305555555555556) internal successors, (206), 147 states have internal predecessors, (206), 53 states have call successors, (53), 18 states have call predecessors, (53), 18 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-09 01:22:22,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 311 transitions. [2024-11-09 01:22:22,863 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 311 transitions. Word has length 63 [2024-11-09 01:22:22,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:22,863 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 311 transitions. [2024-11-09 01:22:22,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 01:22:22,864 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 311 transitions. [2024-11-09 01:22:22,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 01:22:22,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:22,867 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, 1, 1] [2024-11-09 01:22:22,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 01:22:23,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:22:23,068 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:23,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:23,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1348873729, now seen corresponding path program 1 times [2024-11-09 01:22:23,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:22:23,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640491503] [2024-11-09 01:22:23,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:23,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:22:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 01:22:23,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:22:23,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640491503] [2024-11-09 01:22:23,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640491503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:22:23,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:22:23,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:22:23,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827538143] [2024-11-09 01:22:23,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:22:23,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:22:23,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:22:23,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:22:23,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:22:23,183 INFO L87 Difference]: Start difference. First operand 216 states and 311 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:22:23,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:22:23,416 INFO L93 Difference]: Finished difference Result 525 states and 786 transitions. [2024-11-09 01:22:23,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:22:23,417 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 68 [2024-11-09 01:22:23,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:22:23,420 INFO L225 Difference]: With dead ends: 525 [2024-11-09 01:22:23,420 INFO L226 Difference]: Without dead ends: 333 [2024-11-09 01:22:23,421 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 [2024-11-09 01:22:23,422 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 55 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:22:23,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 358 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:22:23,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-09 01:22:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 328. [2024-11-09 01:22:23,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 231 states have (on average 1.4805194805194806) internal successors, (342), 234 states have internal predecessors, (342), 78 states have call successors, (78), 18 states have call predecessors, (78), 18 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-09 01:22:23,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 497 transitions. [2024-11-09 01:22:23,535 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 497 transitions. Word has length 68 [2024-11-09 01:22:23,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:22:23,536 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 497 transitions. [2024-11-09 01:22:23,536 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:22:23,537 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 497 transitions. [2024-11-09 01:22:23,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 01:22:23,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:22:23,539 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, 1, 1, 1] [2024-11-09 01:22:23,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 01:22:23,540 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:22:23,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:22:23,540 INFO L85 PathProgramCache]: Analyzing trace with hash -643262905, now seen corresponding path program 1 times [2024-11-09 01:22:23,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:22:23,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103620565] [2024-11-09 01:22:23,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:23,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:22:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:23,719 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 01:22:23,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:22:23,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103620565] [2024-11-09 01:22:23,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103620565] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:22:23,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753788332] [2024-11-09 01:22:23,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:22:23,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:22:23,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:22:23,722 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:22:23,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:22:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:22:24,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:22:24,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:22:24,120 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 01:22:24,120 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:22:24,214 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 01:22:24,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753788332] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:22:24,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1484224659] [2024-11-09 01:22:24,218 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 01:22:24,218 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:22:24,219 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:22:24,219 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:22:24,219 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:23:19,729 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-09 01:23:20,118 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 437 for LOIs [2024-11-09 01:23:22,152 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:23:49,083 WARN L286 SmtUtils]: Spent 8.38s on a formula simplification. DAG size of input: 437 DAG size of output: 438 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:24:01,655 WARN L286 SmtUtils]: Spent 12.10s on a formula simplification. DAG size of input: 461 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:25:08,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1484224659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:25:08,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:25:08,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-09 01:25:08,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979032720] [2024-11-09 01:25:08,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:25:08,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 01:25:08,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:25:08,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 01:25:08,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2024-11-09 01:25:08,752 INFO L87 Difference]: Start difference. First operand 328 states and 497 transitions. Second operand has 26 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-09 01:25:23,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:25:23,184 INFO L93 Difference]: Finished difference Result 664 states and 1033 transitions. [2024-11-09 01:25:23,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 01:25:23,185 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 69 [2024-11-09 01:25:23,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:25:23,189 INFO L225 Difference]: With dead ends: 664 [2024-11-09 01:25:23,189 INFO L226 Difference]: Without dead ends: 399 [2024-11-09 01:25:23,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 110.3s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 01:25:23,194 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 61 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 1968 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:25:23,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2047 Invalid, 1977 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-11-09 01:25:23,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-09 01:25:23,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 342. [2024-11-09 01:25:23,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 243 states have (on average 1.477366255144033) internal successors, (359), 246 states have internal predecessors, (359), 79 states have call successors, (79), 19 states have call predecessors, (79), 19 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-09 01:25:23,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 516 transitions. [2024-11-09 01:25:23,301 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 516 transitions. Word has length 69 [2024-11-09 01:25:23,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:25:23,303 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 516 transitions. [2024-11-09 01:25:23,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-09 01:25:23,303 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 516 transitions. [2024-11-09 01:25:23,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-09 01:25:23,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:25:23,309 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, 1, 1, 1] [2024-11-09 01:25:23,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 01:25:23,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 01:25:23,510 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:25:23,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:25:23,510 INFO L85 PathProgramCache]: Analyzing trace with hash -155416270, now seen corresponding path program 1 times [2024-11-09 01:25:23,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:25:23,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180022439] [2024-11-09 01:25:23,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:23,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:25:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:23,685 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:25:23,685 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:25:23,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180022439] [2024-11-09 01:25:23,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180022439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:25:23,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554963567] [2024-11-09 01:25:23,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:25:23,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:25:23,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:25:23,689 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:25:23,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 01:25:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:25:24,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:25:24,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:25:24,128 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:25:24,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:25:24,226 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:25:24,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554963567] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:25:24,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [103379752] [2024-11-09 01:25:24,231 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2024-11-09 01:25:24,231 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:25:24,232 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:25:24,232 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:25:24,232 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:26:52,559 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-09 01:26:52,923 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 483 for LOIs [2024-11-09 01:26:54,158 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 428 for LOIs [2024-11-09 01:26:54,624 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2024-11-09 01:26:54,770 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 492 for LOIs [2024-11-09 01:26:56,000 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:28:00,117 WARN L286 SmtUtils]: Spent 6.76s on a formula simplification. DAG size of input: 513 DAG size of output: 505 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:28:07,552 WARN L286 SmtUtils]: Spent 7.08s on a formula simplification. DAG size of input: 514 DAG size of output: 505 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:28:33,949 WARN L286 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 493 DAG size of output: 493 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:28:40,969 WARN L286 SmtUtils]: Spent 6.36s on a formula simplification. DAG size of input: 498 DAG size of output: 494 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:28:47,383 WARN L286 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 492 DAG size of output: 488 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:28:54,335 WARN L286 SmtUtils]: Spent 6.43s on a formula simplification. DAG size of input: 492 DAG size of output: 488 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:29:01,246 WARN L286 SmtUtils]: Spent 6.24s on a formula simplification. DAG size of input: 488 DAG size of output: 484 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:29:08,146 WARN L286 SmtUtils]: Spent 6.30s on a formula simplification. DAG size of input: 483 DAG size of output: 479 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:29:14,994 WARN L286 SmtUtils]: Spent 6.23s on a formula simplification. DAG size of input: 483 DAG size of output: 479 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:29:21,873 WARN L286 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 479 DAG size of output: 475 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:29:21,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [103379752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:29:21,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:29:21,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-09 01:29:21,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339748458] [2024-11-09 01:29:21,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:29:21,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 01:29:21,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:29:21,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 01:29:21,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:29:21,882 INFO L87 Difference]: Start difference. First operand 342 states and 516 transitions. Second operand has 33 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-09 01:29:45,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:29:45,778 INFO L93 Difference]: Finished difference Result 689 states and 1068 transitions. [2024-11-09 01:29:45,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 01:29:45,779 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 72 [2024-11-09 01:29:45,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:29:45,782 INFO L225 Difference]: With dead ends: 689 [2024-11-09 01:29:45,783 INFO L226 Difference]: Without dead ends: 424 [2024-11-09 01:29:45,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 150.1s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 01:29:45,785 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 100 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 3096 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 3106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2024-11-09 01:29:45,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 2788 Invalid, 3106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3096 Invalid, 0 Unknown, 0 Unchecked, 19.3s Time] [2024-11-09 01:29:45,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-09 01:29:46,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 378. [2024-11-09 01:29:46,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 273 states have (on average 1.468864468864469) internal successors, (401), 276 states have internal predecessors, (401), 82 states have call successors, (82), 22 states have call predecessors, (82), 22 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-09 01:29:46,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 564 transitions. [2024-11-09 01:29:46,008 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 564 transitions. Word has length 72 [2024-11-09 01:29:46,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:29:46,009 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 564 transitions. [2024-11-09 01:29:46,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-09 01:29:46,009 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 564 transitions. [2024-11-09 01:29:46,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 01:29:46,012 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:29:46,012 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, 1, 1] [2024-11-09 01:29:46,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 01:29:46,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:46,213 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:29:46,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:29:46,214 INFO L85 PathProgramCache]: Analyzing trace with hash -230055203, now seen corresponding path program 1 times [2024-11-09 01:29:46,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:29:46,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405609012] [2024-11-09 01:29:46,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:46,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:29:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:46,424 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:29:46,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:29:46,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405609012] [2024-11-09 01:29:46,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405609012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:29:46,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277304926] [2024-11-09 01:29:46,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:29:46,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:29:46,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:29:46,428 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:29:46,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 01:29:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:29:46,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:29:46,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:29:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:29:46,861 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:29:46,971 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 01:29:46,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277304926] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:29:46,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [594662725] [2024-11-09 01:29:46,978 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-09 01:29:46,979 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:29:46,981 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:29:46,981 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:29:46,982 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:30:38,205 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-09 01:30:38,411 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2024-11-09 01:30:38,563 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:31:55,498 WARN L286 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 456 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:32:01,302 WARN L286 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 456 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:32:07,158 WARN L286 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 456 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:32:13,139 WARN L286 SmtUtils]: Spent 5.35s on a formula simplification. DAG size of input: 456 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:32:19,174 WARN L286 SmtUtils]: Spent 5.37s on a formula simplification. DAG size of input: 456 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:32:24,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [594662725] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:32:24,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:32:24,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-09 01:32:24,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567378813] [2024-11-09 01:32:24,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:24,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 01:32:24,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:32:24,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 01:32:24,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2024-11-09 01:32:24,415 INFO L87 Difference]: Start difference. First operand 378 states and 564 transitions. Second operand has 27 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 01:32:40,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:40,696 INFO L93 Difference]: Finished difference Result 691 states and 1059 transitions. [2024-11-09 01:32:40,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 01:32:40,698 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 71 [2024-11-09 01:32:40,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:40,702 INFO L225 Difference]: With dead ends: 691 [2024-11-09 01:32:40,702 INFO L226 Difference]: Without dead ends: 426 [2024-11-09 01:32:40,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 110.2s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 01:32:40,705 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 17 mSDsluCounter, 1872 mSDsCounter, 0 mSdLazyCounter, 1987 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 1996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:40,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2020 Invalid, 1996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1987 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2024-11-09 01:32:40,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-09 01:32:40,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 398. [2024-11-09 01:32:40,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 293 states have (on average 1.47098976109215) internal successors, (431), 296 states have internal predecessors, (431), 82 states have call successors, (82), 22 states have call predecessors, (82), 22 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-09 01:32:40,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 594 transitions. [2024-11-09 01:32:40,997 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 594 transitions. Word has length 71 [2024-11-09 01:32:40,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:40,998 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 594 transitions. [2024-11-09 01:32:40,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 01:32:40,998 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 594 transitions. [2024-11-09 01:32:41,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 01:32:41,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:41,002 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, 1, 1, 1] [2024-11-09 01:32:41,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 01:32:41,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:32:41,204 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:41,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:41,204 INFO L85 PathProgramCache]: Analyzing trace with hash 4995156, now seen corresponding path program 1 times [2024-11-09 01:32:41,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:32:41,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756700997] [2024-11-09 01:32:41,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:41,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:41,554 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 01:32:41,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:32:41,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756700997] [2024-11-09 01:32:41,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756700997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:32:41,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:32:41,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:32:41,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333915833] [2024-11-09 01:32:41,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:41,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:32:41,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:32:41,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:32:41,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:32:41,558 INFO L87 Difference]: Start difference. First operand 398 states and 594 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:32:41,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:41,908 INFO L93 Difference]: Finished difference Result 483 states and 692 transitions. [2024-11-09 01:32:41,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:32:41,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2024-11-09 01:32:41,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:41,913 INFO L225 Difference]: With dead ends: 483 [2024-11-09 01:32:41,913 INFO L226 Difference]: Without dead ends: 420 [2024-11-09 01:32:41,914 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 [2024-11-09 01:32:41,919 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 119 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:41,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 222 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:32:41,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-09 01:32:42,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2024-11-09 01:32:42,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 305 states have (on average 1.4524590163934425) internal successors, (443), 308 states have internal predecessors, (443), 86 states have call successors, (86), 29 states have call predecessors, (86), 28 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-09 01:32:42,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 614 transitions. [2024-11-09 01:32:42,175 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 614 transitions. Word has length 74 [2024-11-09 01:32:42,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:42,176 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 614 transitions. [2024-11-09 01:32:42,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 01:32:42,176 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 614 transitions. [2024-11-09 01:32:42,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-09 01:32:42,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:42,181 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, 1, 1, 1, 1, 1] [2024-11-09 01:32:42,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 01:32:42,181 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:42,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:42,182 INFO L85 PathProgramCache]: Analyzing trace with hash 1528284778, now seen corresponding path program 1 times [2024-11-09 01:32:42,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:32:42,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899575994] [2024-11-09 01:32:42,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:42,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-09 01:32:42,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:32:42,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899575994] [2024-11-09 01:32:42,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899575994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:32:42,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:32:42,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 01:32:42,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184262838] [2024-11-09 01:32:42,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:32:42,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 01:32:42,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:32:42,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 01:32:42,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 01:32:42,591 INFO L87 Difference]: Start difference. First operand 420 states and 614 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-09 01:32:43,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:32:43,288 INFO L93 Difference]: Finished difference Result 522 states and 726 transitions. [2024-11-09 01:32:43,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 01:32:43,289 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 105 [2024-11-09 01:32:43,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:32:43,293 INFO L225 Difference]: With dead ends: 522 [2024-11-09 01:32:43,293 INFO L226 Difference]: Without dead ends: 426 [2024-11-09 01:32:43,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 01:32:43,295 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 161 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:32:43,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 333 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 01:32:43,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-09 01:32:43,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2024-11-09 01:32:43,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 308 states have (on average 1.4415584415584415) internal successors, (444), 311 states have internal predecessors, (444), 86 states have call successors, (86), 32 states have call predecessors, (86), 31 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-09 01:32:43,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 615 transitions. [2024-11-09 01:32:43,568 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 615 transitions. Word has length 105 [2024-11-09 01:32:43,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:32:43,570 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 615 transitions. [2024-11-09 01:32:43,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-09 01:32:43,571 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 615 transitions. [2024-11-09 01:32:43,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-09 01:32:43,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:32:43,574 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:32:43,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 01:32:43,575 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:32:43,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:32:43,575 INFO L85 PathProgramCache]: Analyzing trace with hash 248170081, now seen corresponding path program 1 times [2024-11-09 01:32:43,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:32:43,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296891712] [2024-11-09 01:32:43,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:43,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:32:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:44,560 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 01:32:44,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:32:44,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296891712] [2024-11-09 01:32:44,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296891712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:32:44,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976050813] [2024-11-09 01:32:44,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:32:44,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:32:44,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:32:44,563 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:32:44,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f1328e-da1a-473b-b858-0feb99737088/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 01:32:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:32:45,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 1052 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:32:45,037 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:32:45,127 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-09 01:32:45,127 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:32:45,384 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 01:32:45,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976050813] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:32:45,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1518813308] [2024-11-09 01:32:45,388 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2024-11-09 01:32:45,388 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:32:45,389 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:32:45,389 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:32:45,390 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:33:31,592 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 237 for LOIs [2024-11-09 01:33:31,804 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 235 for LOIs [2024-11-09 01:33:31,988 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2024-11-09 01:33:37,453 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 291 for LOIs [2024-11-09 01:34:01,383 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 249 for LOIs [2024-11-09 01:34:01,581 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 296 for LOIs [2024-11-09 01:34:03,896 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 252 for LOIs [2024-11-09 01:34:05,072 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 318 for LOIs [2024-11-09 01:34:06,739 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 224 for LOIs [2024-11-09 01:34:07,570 INFO L180 IcfgInterpreter]: Interpretation finished