./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product19.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_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/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_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/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_a6592c94-a419-4ef8-95d2-f053f8b8e775/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 195d502e207cba6e22b4d3a0f1eab4288ed491325552159482eaed582ac159e0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:26:39,273 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:26:39,372 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 01:26:39,379 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:26:39,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:26:39,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:26:39,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:26:39,431 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:26:39,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:26:39,433 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:26:39,435 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:26:39,436 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:26:39,436 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:26:39,436 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:26:39,437 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:26:39,437 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:26:39,437 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:26:39,438 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:26:39,438 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:26:39,438 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:26:39,439 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:26:39,443 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:26:39,444 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:26:39,445 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:26:39,446 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 01:26:39,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:26:39,447 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 01:26:39,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:26:39,447 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:26:39,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:26:39,448 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:26:39,448 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:26:39,448 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 01:26:39,449 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:26:39,449 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:26:39,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:26:39,449 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:26:39,450 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:26:39,450 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:26:39,450 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:26:39,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:26:39,452 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:26:39,453 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:26:39,453 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:26:39,453 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:26:39,454 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:26:39,454 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:26:39,455 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_a6592c94-a419-4ef8-95d2-f053f8b8e775/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 195d502e207cba6e22b4d3a0f1eab4288ed491325552159482eaed582ac159e0 [2024-11-09 01:26:39,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:26:39,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:26:39,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:26:39,790 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:26:39,791 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:26:39,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec27_product19.cil.c Unable to find full path for "g++" [2024-11-09 01:26:41,939 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:26:42,401 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:26:42,404 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/sv-benchmarks/c/product-lines/email_spec27_product19.cil.c [2024-11-09 01:26:42,435 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/data/fc8d10a62/6ba6e9b31f854a48afbd8005d53943e6/FLAG37a295ef7 [2024-11-09 01:26:42,457 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/data/fc8d10a62/6ba6e9b31f854a48afbd8005d53943e6 [2024-11-09 01:26:42,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:26:42,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:26:42,466 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:26:42,468 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:26:42,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:26:42,476 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:26:42" (1/1) ... [2024-11-09 01:26:42,478 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@221e57b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:42, skipping insertion in model container [2024-11-09 01:26:42,478 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:26:42" (1/1) ... [2024-11-09 01:26:42,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:26:43,154 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_a6592c94-a419-4ef8-95d2-f053f8b8e775/sv-benchmarks/c/product-lines/email_spec27_product19.cil.c[17762,17775] [2024-11-09 01:26:43,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:26:43,472 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:26:43,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-09 01:26:43,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [414] [2024-11-09 01:26:43,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [461] [2024-11-09 01:26:43,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [499] [2024-11-09 01:26:43,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [799] [2024-11-09 01:26:43,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [808] [2024-11-09 01:26:43,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1024] [2024-11-09 01:26:43,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1129] [2024-11-09 01:26:43,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1146] [2024-11-09 01:26:43,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2217] [2024-11-09 01:26:43,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2621] [2024-11-09 01:26:43,538 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_a6592c94-a419-4ef8-95d2-f053f8b8e775/sv-benchmarks/c/product-lines/email_spec27_product19.cil.c[17762,17775] [2024-11-09 01:26:43,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:26:43,682 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:26:43,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43 WrapperNode [2024-11-09 01:26:43,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:26:43,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:26:43,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:26:43,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:26:43,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43" (1/1) ... [2024-11-09 01:26:43,748 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43" (1/1) ... [2024-11-09 01:26:43,817 INFO L138 Inliner]: procedures = 127, calls = 186, calls flagged for inlining = 58, calls inlined = 53, statements flattened = 958 [2024-11-09 01:26:43,817 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:26:43,818 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:26:43,818 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:26:43,818 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:26:43,827 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43" (1/1) ... [2024-11-09 01:26:43,828 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43" (1/1) ... [2024-11-09 01:26:43,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43" (1/1) ... [2024-11-09 01:26:43,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43" (1/1) ... [2024-11-09 01:26:43,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43" (1/1) ... [2024-11-09 01:26:43,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43" (1/1) ... [2024-11-09 01:26:43,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43" (1/1) ... [2024-11-09 01:26:43,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43" (1/1) ... [2024-11-09 01:26:43,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:26:43,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:26:43,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:26:43,893 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:26:43,894 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43" (1/1) ... [2024-11-09 01:26:43,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:26:43,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:26:43,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:26:43,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:26:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 01:26:43,970 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 01:26:43,970 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 01:26:43,970 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 01:26:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 01:26:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 01:26:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 01:26:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 01:26:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-09 01:26:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-09 01:26:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 01:26:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 01:26:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 01:26:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 01:26:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 01:26:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 01:26:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:26:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-09 01:26:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-09 01:26:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 01:26:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 01:26:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 01:26:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 01:26:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 01:26:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 01:26:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-09 01:26:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-09 01:26:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-09 01:26:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-09 01:26:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 01:26:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 01:26:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 01:26:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 01:26:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 01:26:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 01:26:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:26:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 01:26:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 01:26:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:26:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:26:44,210 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:26:44,214 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:26:45,453 INFO L? ?]: Removed 430 outVars from TransFormulas that were not future-live. [2024-11-09 01:26:45,453 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:26:46,132 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:26:46,133 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 01:26:46,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:26:46 BoogieIcfgContainer [2024-11-09 01:26:46,134 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:26:46,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:26:46,137 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:26:46,140 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:26:46,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:26:42" (1/3) ... [2024-11-09 01:26:46,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a3f038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:26:46, skipping insertion in model container [2024-11-09 01:26:46,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:26:43" (2/3) ... [2024-11-09 01:26:46,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a3f038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:26:46, skipping insertion in model container [2024-11-09 01:26:46,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:26:46" (3/3) ... [2024-11-09 01:26:46,146 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product19.cil.c [2024-11-09 01:26:46,169 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:26:46,170 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 01:26:46,291 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:26:46,303 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;@6833156e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:26:46,303 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 01:26:46,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 97 states have (on average 1.3402061855670102) internal successors, (130), 99 states have internal predecessors, (130), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 01:26:46,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 01:26:46,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:46,331 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:26:46,333 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:26:46,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:46,340 INFO L85 PathProgramCache]: Analyzing trace with hash 278428987, now seen corresponding path program 1 times [2024-11-09 01:26:46,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:46,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736479460] [2024-11-09 01:26:46,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:46,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:46,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:46,817 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 01:26:46,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:46,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736479460] [2024-11-09 01:26:46,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736479460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:46,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:46,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 01:26:46,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067557216] [2024-11-09 01:26:46,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:46,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 01:26:46,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:46,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 01:26:46,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 01:26:46,868 INFO L87 Difference]: Start difference. First operand has 163 states, 97 states have (on average 1.3402061855670102) internal successors, (130), 99 states have internal predecessors, (130), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 01:26:47,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:47,024 INFO L93 Difference]: Finished difference Result 243 states and 322 transitions. [2024-11-09 01:26:47,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 01:26:47,027 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 68 [2024-11-09 01:26:47,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:47,039 INFO L225 Difference]: With dead ends: 243 [2024-11-09 01:26:47,039 INFO L226 Difference]: Without dead ends: 160 [2024-11-09 01:26:47,044 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 01:26:47,048 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:47,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 188 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:26:47,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-09 01:26:47,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-09 01:26:47,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 95 states have (on average 1.305263157894737) internal successors, (124), 96 states have internal predecessors, (124), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 01:26:47,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 215 transitions. [2024-11-09 01:26:47,140 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 215 transitions. Word has length 68 [2024-11-09 01:26:47,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:47,145 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 215 transitions. [2024-11-09 01:26:47,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 01:26:47,145 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 215 transitions. [2024-11-09 01:26:47,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 01:26:47,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:47,152 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:26:47,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:26:47,152 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:26:47,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:47,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1213126700, now seen corresponding path program 1 times [2024-11-09 01:26:47,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:47,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191147659] [2024-11-09 01:26:47,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:47,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:47,529 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 01:26:47,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:47,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191147659] [2024-11-09 01:26:47,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191147659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:47,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:47,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:26:47,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266473349] [2024-11-09 01:26:47,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:47,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:26:47,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:47,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:26:47,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:47,537 INFO L87 Difference]: Start difference. First operand 160 states and 215 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 01:26:47,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:47,719 INFO L93 Difference]: Finished difference Result 239 states and 310 transitions. [2024-11-09 01:26:47,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:26:47,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 69 [2024-11-09 01:26:47,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:47,725 INFO L225 Difference]: With dead ends: 239 [2024-11-09 01:26:47,725 INFO L226 Difference]: Without dead ends: 162 [2024-11-09 01:26:47,729 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 01:26:47,730 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 0 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:47,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 369 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:26:47,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-09 01:26:47,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-11-09 01:26:47,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 97 states have (on average 1.2989690721649485) internal successors, (126), 98 states have internal predecessors, (126), 46 states have call successors, (46), 18 states have call predecessors, (46), 18 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 01:26:47,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 217 transitions. [2024-11-09 01:26:47,757 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 217 transitions. Word has length 69 [2024-11-09 01:26:47,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:47,757 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 217 transitions. [2024-11-09 01:26:47,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 01:26:47,758 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 217 transitions. [2024-11-09 01:26:47,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 01:26:47,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:47,761 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, 1, 1] [2024-11-09 01:26:47,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 01:26:47,761 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:26:47,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:47,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1004214004, now seen corresponding path program 1 times [2024-11-09 01:26:47,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:47,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810899109] [2024-11-09 01:26:47,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:47,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:47,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:47,954 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 01:26:47,954 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:47,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810899109] [2024-11-09 01:26:47,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810899109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:26:47,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:26:47,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:26:47,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877358666] [2024-11-09 01:26:47,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:26:47,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:26:47,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:26:47,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:26:47,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:26:47,959 INFO L87 Difference]: Start difference. First operand 162 states and 217 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 01:26:48,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:26:48,166 INFO L93 Difference]: Finished difference Result 354 states and 493 transitions. [2024-11-09 01:26:48,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:26:48,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 74 [2024-11-09 01:26:48,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:26:48,170 INFO L225 Difference]: With dead ends: 354 [2024-11-09 01:26:48,174 INFO L226 Difference]: Without dead ends: 210 [2024-11-09 01:26:48,176 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 01:26:48,180 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 57 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:26:48,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 365 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 01:26:48,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-09 01:26:48,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 205. [2024-11-09 01:26:48,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 129 states have (on average 1.3875968992248062) internal successors, (179), 130 states have internal predecessors, (179), 57 states have call successors, (57), 18 states have call predecessors, (57), 18 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 01:26:48,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 292 transitions. [2024-11-09 01:26:48,221 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 292 transitions. Word has length 74 [2024-11-09 01:26:48,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:26:48,222 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 292 transitions. [2024-11-09 01:26:48,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-09 01:26:48,222 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 292 transitions. [2024-11-09 01:26:48,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-09 01:26:48,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:26:48,230 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, 1, 1, 1] [2024-11-09 01:26:48,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 01:26:48,234 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:26:48,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:26:48,235 INFO L85 PathProgramCache]: Analyzing trace with hash -1884175769, now seen corresponding path program 1 times [2024-11-09 01:26:48,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:26:48,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283024692] [2024-11-09 01:26:48,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:48,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:26:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:48,537 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 01:26:48,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:26:48,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283024692] [2024-11-09 01:26:48,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283024692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:26:48,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911023702] [2024-11-09 01:26:48,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:26:48,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:26:48,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:26:48,545 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:26:48,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 01:26:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:26:49,013 INFO L255 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:26:49,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:26:49,112 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 01:26:49,114 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:26:49,274 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 01:26:49,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911023702] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:26:49,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1103145486] [2024-11-09 01:26:49,308 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-09 01:26:49,308 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:26:49,313 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:26:49,321 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:26:49,324 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:27:20,435 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 01:27:20,665 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-09 01:27:20,902 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:28:18,130 WARN L286 SmtUtils]: Spent 10.03s on a formula simplification. DAG size of input: 446 DAG size of output: 446 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:28:29,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1103145486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:28:29,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:28:29,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 01:28:29,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529319747] [2024-11-09 01:28:29,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:28:29,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 01:28:29,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:28:29,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 01:28:29,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:28:29,819 INFO L87 Difference]: Start difference. First operand 205 states and 292 transitions. Second operand has 23 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-09 01:28:36,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:28:36,765 INFO L93 Difference]: Finished difference Result 424 states and 620 transitions. [2024-11-09 01:28:36,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 01:28:36,766 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 75 [2024-11-09 01:28:36,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:28:36,769 INFO L225 Difference]: With dead ends: 424 [2024-11-09 01:28:36,770 INFO L226 Difference]: Without dead ends: 237 [2024-11-09 01:28:36,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 68.9s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 01:28:36,772 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 25 mSDsluCounter, 2331 mSDsCounter, 0 mSdLazyCounter, 1646 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2497 SdHoareTripleChecker+Invalid, 1655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-09 01:28:36,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2497 Invalid, 1655 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1646 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-09 01:28:36,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-09 01:28:36,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 228. [2024-11-09 01:28:36,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 151 states have (on average 1.403973509933775) internal successors, (212), 152 states have internal predecessors, (212), 57 states have call successors, (57), 19 states have call predecessors, (57), 19 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-09 01:28:36,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 325 transitions. [2024-11-09 01:28:36,837 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 325 transitions. Word has length 75 [2024-11-09 01:28:36,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:28:36,838 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 325 transitions. [2024-11-09 01:28:36,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-09 01:28:36,838 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 325 transitions. [2024-11-09 01:28:36,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-09 01:28:36,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:28:36,842 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:28:36,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 01:28:37,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:28:37,047 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:28:37,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:28:37,047 INFO L85 PathProgramCache]: Analyzing trace with hash 356509475, now seen corresponding path program 1 times [2024-11-09 01:28:37,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:28:37,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324988786] [2024-11-09 01:28:37,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:37,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:28:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:37,197 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 01:28:37,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:28:37,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324988786] [2024-11-09 01:28:37,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324988786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:28:37,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 01:28:37,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 01:28:37,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051471947] [2024-11-09 01:28:37,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:28:37,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 01:28:37,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:28:37,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 01:28:37,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 01:28:37,202 INFO L87 Difference]: Start difference. First operand 228 states and 325 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 01:28:37,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:28:37,399 INFO L93 Difference]: Finished difference Result 549 states and 814 transitions. [2024-11-09 01:28:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 01:28:37,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 80 [2024-11-09 01:28:37,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:28:37,403 INFO L225 Difference]: With dead ends: 549 [2024-11-09 01:28:37,403 INFO L226 Difference]: Without dead ends: 345 [2024-11-09 01:28:37,404 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 01:28:37,405 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 55 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 01:28:37,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 377 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 01:28:37,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-09 01:28:37,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 340. [2024-11-09 01:28:37,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 238 states have (on average 1.4621848739495797) internal successors, (348), 239 states have internal predecessors, (348), 82 states have call successors, (82), 19 states have call predecessors, (82), 19 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-09 01:28:37,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 511 transitions. [2024-11-09 01:28:37,494 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 511 transitions. Word has length 80 [2024-11-09 01:28:37,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:28:37,494 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 511 transitions. [2024-11-09 01:28:37,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-09 01:28:37,495 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 511 transitions. [2024-11-09 01:28:37,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 01:28:37,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:28:37,498 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:28:37,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 01:28:37,499 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:28:37,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:28:37,499 INFO L85 PathProgramCache]: Analyzing trace with hash -962492237, now seen corresponding path program 1 times [2024-11-09 01:28:37,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:28:37,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346527268] [2024-11-09 01:28:37,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:37,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:28:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:37,659 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 01:28:37,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:28:37,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346527268] [2024-11-09 01:28:37,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346527268] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:28:37,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599490266] [2024-11-09 01:28:37,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:28:37,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:28:37,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:28:37,662 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:28:37,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 01:28:38,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:28:38,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:28:38,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:28:38,060 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 01:28:38,060 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:28:38,155 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 01:28:38,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599490266] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:28:38,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1217845701] [2024-11-09 01:28:38,159 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-09 01:28:38,159 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:28:38,160 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:28:38,160 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:28:38,160 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:29:22,063 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 01:29:22,179 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-09 01:29:24,059 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:29:48,868 WARN L286 SmtUtils]: Spent 7.79s on a formula simplification. DAG size of input: 431 DAG size of output: 432 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:30:00,848 WARN L286 SmtUtils]: Spent 11.54s on a formula simplification. DAG size of input: 455 DAG size of output: 451 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:30:45,487 WARN L286 SmtUtils]: Spent 11.58s on a formula simplification. DAG size of input: 448 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:31:15,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1217845701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:31:15,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:31:15,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-09 01:31:15,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133886265] [2024-11-09 01:31:15,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:31:15,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 01:31:15,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:31:15,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 01:31:15,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 01:31:15,244 INFO L87 Difference]: Start difference. First operand 340 states and 511 transitions. Second operand has 26 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-09 01:31:27,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:31:27,969 INFO L93 Difference]: Finished difference Result 688 states and 1061 transitions. [2024-11-09 01:31:27,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 01:31:27,970 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 81 [2024-11-09 01:31:27,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:31:27,973 INFO L225 Difference]: With dead ends: 688 [2024-11-09 01:31:27,973 INFO L226 Difference]: Without dead ends: 411 [2024-11-09 01:31:27,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 111.2s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 01:31:27,975 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 41 mSDsluCounter, 2519 mSDsCounter, 0 mSdLazyCounter, 2139 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 2680 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2024-11-09 01:31:27,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 2680 Invalid, 2147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2139 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2024-11-09 01:31:27,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-09 01:31:28,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 354. [2024-11-09 01:31:28,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 250 states have (on average 1.46) internal successors, (365), 251 states have internal predecessors, (365), 83 states have call successors, (83), 20 states have call predecessors, (83), 20 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-09 01:31:28,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 530 transitions. [2024-11-09 01:31:28,092 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 530 transitions. Word has length 81 [2024-11-09 01:31:28,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:31:28,093 INFO L471 AbstractCegarLoop]: Abstraction has 354 states and 530 transitions. [2024-11-09 01:31:28,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-09 01:31:28,093 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 530 transitions. [2024-11-09 01:31:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 01:31:28,096 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:31:28,096 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:31:28,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 01:31:28,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 01:31:28,297 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:31:28,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:31:28,298 INFO L85 PathProgramCache]: Analyzing trace with hash -414650803, now seen corresponding path program 1 times [2024-11-09 01:31:28,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:31:28,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385259790] [2024-11-09 01:31:28,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:28,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:31:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:28,568 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 01:31:28,568 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:31:28,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385259790] [2024-11-09 01:31:28,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385259790] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:31:28,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709513714] [2024-11-09 01:31:28,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:31:28,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:31:28,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:31:28,571 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:31:28,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 01:31:28,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:31:28,990 INFO L255 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:31:29,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:31:29,041 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 01:31:29,041 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:31:29,155 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 01:31:29,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709513714] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:31:29,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [102071435] [2024-11-09 01:31:29,163 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2024-11-09 01:31:29,163 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:31:29,163 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:31:29,164 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:31:29,164 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:32:48,980 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 01:32:49,124 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 477 for LOIs [2024-11-09 01:32:50,271 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 486 for LOIs [2024-11-09 01:32:51,559 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 422 for LOIs [2024-11-09 01:32:51,935 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-09 01:32:52,078 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:34:04,097 WARN L286 SmtUtils]: Spent 15.11s on a formula simplification. DAG size of input: 506 DAG size of output: 501 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:34:20,995 WARN L286 SmtUtils]: Spent 15.73s on a formula simplification. DAG size of input: 506 DAG size of output: 501 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:34:44,948 WARN L286 SmtUtils]: Spent 6.41s on a formula simplification. DAG size of input: 487 DAG size of output: 487 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:34:52,438 WARN L286 SmtUtils]: Spent 6.72s 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 01:34:59,893 WARN L286 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 486 DAG size of output: 482 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:35:06,825 WARN L286 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 486 DAG size of output: 482 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:35:14,220 WARN L286 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 482 DAG size of output: 478 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:35:20,772 WARN L286 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 477 DAG size of output: 473 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:35:27,658 WARN L286 SmtUtils]: Spent 6.15s on a formula simplification. DAG size of input: 477 DAG size of output: 473 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:35:34,842 WARN L286 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 473 DAG size of output: 469 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:35:34,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [102071435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:35:34,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:35:34,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-09 01:35:34,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852549947] [2024-11-09 01:35:34,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:35:34,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 01:35:34,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:35:34,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 01:35:34,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:35:34,851 INFO L87 Difference]: Start difference. First operand 354 states and 530 transitions. Second operand has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-09 01:35:56,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:35:56,449 INFO L93 Difference]: Finished difference Result 713 states and 1096 transitions. [2024-11-09 01:35:56,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 01:35:56,450 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 84 [2024-11-09 01:35:56,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:35:56,454 INFO L225 Difference]: With dead ends: 713 [2024-11-09 01:35:56,454 INFO L226 Difference]: Without dead ends: 436 [2024-11-09 01:35:56,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 162.7s TimeCoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 01:35:56,457 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 100 mSDsluCounter, 3029 mSDsCounter, 0 mSdLazyCounter, 2998 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 3007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:35:56,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 3194 Invalid, 3007 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2998 Invalid, 0 Unknown, 0 Unchecked, 21.2s Time] [2024-11-09 01:35:56,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-09 01:35:56,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 390. [2024-11-09 01:35:56,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 280 states have (on average 1.4535714285714285) internal successors, (407), 281 states have internal predecessors, (407), 86 states have call successors, (86), 23 states have call predecessors, (86), 23 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-09 01:35:56,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 578 transitions. [2024-11-09 01:35:56,631 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 578 transitions. Word has length 84 [2024-11-09 01:35:56,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:35:56,632 INFO L471 AbstractCegarLoop]: Abstraction has 390 states and 578 transitions. [2024-11-09 01:35:56,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-09 01:35:56,633 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 578 transitions. [2024-11-09 01:35:56,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 01:35:56,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:35:56,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:35:56,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 01:35:56,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:35:56,837 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:35:56,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:35:56,838 INFO L85 PathProgramCache]: Analyzing trace with hash -478774591, now seen corresponding path program 1 times [2024-11-09 01:35:56,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:35:56,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573632776] [2024-11-09 01:35:56,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:35:56,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:35:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:35:56,999 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 01:35:57,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:35:57,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573632776] [2024-11-09 01:35:57,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573632776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:35:57,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355189654] [2024-11-09 01:35:57,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:35:57,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:35:57,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:35:57,002 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:35:57,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 01:35:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:35:57,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 901 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 01:35:57,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:35:57,499 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 01:35:57,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:35:57,627 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 01:35:57,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355189654] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:35:57,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [723355860] [2024-11-09 01:35:57,632 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2024-11-09 01:35:57,633 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:35:57,633 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:35:57,633 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:35:57,634 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:36:41,413 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 01:36:41,560 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-09 01:36:41,716 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:37:50,342 WARN L286 SmtUtils]: Spent 11.64s on a formula simplification. DAG size of input: 447 DAG size of output: 447 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:38:24,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [723355860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 01:38:24,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 01:38:24,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-09 01:38:24,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047791849] [2024-11-09 01:38:24,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 01:38:24,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 01:38:24,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 01:38:24,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 01:38:24,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 01:38:24,543 INFO L87 Difference]: Start difference. First operand 390 states and 578 transitions. Second operand has 27 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-09 01:38:33,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 01:38:33,030 INFO L93 Difference]: Finished difference Result 715 states and 1087 transitions. [2024-11-09 01:38:33,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 01:38:33,031 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 83 [2024-11-09 01:38:33,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 01:38:33,035 INFO L225 Difference]: With dead ends: 715 [2024-11-09 01:38:33,036 INFO L226 Difference]: Without dead ends: 438 [2024-11-09 01:38:33,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 102.8s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 01:38:33,038 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 17 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 1680 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 1688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-09 01:38:33,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2143 Invalid, 1688 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1680 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-11-09 01:38:33,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2024-11-09 01:38:33,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 410. [2024-11-09 01:38:33,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 300 states have (on average 1.4566666666666668) internal successors, (437), 301 states have internal predecessors, (437), 86 states have call successors, (86), 23 states have call predecessors, (86), 23 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-09 01:38:33,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 608 transitions. [2024-11-09 01:38:33,214 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 608 transitions. Word has length 83 [2024-11-09 01:38:33,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 01:38:33,215 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 608 transitions. [2024-11-09 01:38:33,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-09 01:38:33,215 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 608 transitions. [2024-11-09 01:38:33,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 01:38:33,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:38:33,221 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:38:33,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 01:38:33,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:38:33,422 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 01:38:33,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:38:33,423 INFO L85 PathProgramCache]: Analyzing trace with hash -474490360, now seen corresponding path program 1 times [2024-11-09 01:38:33,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:38:33,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070724612] [2024-11-09 01:38:33,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:38:33,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:38:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:38:33,635 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 01:38:33,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 01:38:33,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070724612] [2024-11-09 01:38:33,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070724612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 01:38:33,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952350952] [2024-11-09 01:38:33,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:38:33,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 01:38:33,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:38:33,638 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 01:38:33,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6592c94-a419-4ef8-95d2-f053f8b8e775/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 01:38:34,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 01:38:34,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 01:38:34,101 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 01:38:34,170 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 01:38:34,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 01:38:34,315 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 01:38:34,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952350952] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 01:38:34,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1954843380] [2024-11-09 01:38:34,319 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-09 01:38:34,320 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 01:38:34,320 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 01:38:34,321 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 01:38:34,321 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 01:39:18,745 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 01:39:18,894 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-09 01:39:20,253 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 259 for LOIs [2024-11-09 01:39:23,801 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 235 for LOIs [2024-11-09 01:39:23,928 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 257 for LOIs [2024-11-09 01:39:31,396 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 262 for LOIs [2024-11-09 01:39:31,586 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 262 for LOIs [2024-11-09 01:39:31,861 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 240 for LOIs [2024-11-09 01:39:31,991 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 01:39:59,695 WARN L286 SmtUtils]: Spent 8.81s on a formula simplification. DAG size of input: 431 DAG size of output: 432 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 01:40:13,153 WARN L286 SmtUtils]: Spent 12.88s on a formula simplification. DAG size of input: 455 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)