./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product13.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_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/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_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/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_86498642-b763-416b-9517-daa4c3f79dde/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 a4d75af8ac92d9f5b92cf5fbd6315f6202b8108aa1e42fc32d65f286c89fdf2f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:09:47,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:09:47,852 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:09:47,859 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:09:47,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:09:47,891 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:09:47,892 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:09:47,893 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:09:47,894 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:09:47,894 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:09:47,895 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:09:47,896 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:09:47,896 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:09:47,897 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:09:47,897 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:09:47,898 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:09:47,898 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:09:47,899 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:09:47,899 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:09:47,900 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:09:47,900 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:09:47,901 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:09:47,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:09:47,902 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:09:47,903 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:09:47,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:09:47,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:09:47,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:09:47,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:09:47,906 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:09:47,906 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:09:47,907 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:09:47,907 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:09:47,908 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:09:47,908 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:09:47,909 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:09:47,909 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:09:47,909 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:09:47,910 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:09:47,910 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:09:47,911 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:09:47,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:09:47,912 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:09:47,912 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:09:47,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:09:47,913 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:09:47,913 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:09:47,914 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_86498642-b763-416b-9517-daa4c3f79dde/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4d75af8ac92d9f5b92cf5fbd6315f6202b8108aa1e42fc32d65f286c89fdf2f [2024-11-09 07:09:48,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:09:48,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:09:48,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:09:48,315 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:09:48,316 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:09:48,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec4_product13.cil.c Unable to find full path for "g++" [2024-11-09 07:09:50,917 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:09:51,285 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:09:51,286 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/sv-benchmarks/c/product-lines/email_spec4_product13.cil.c [2024-11-09 07:09:51,314 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/data/787660559/3208d8d0009045c591a098c130ffa966/FLAGfca748503 [2024-11-09 07:09:51,337 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/data/787660559/3208d8d0009045c591a098c130ffa966 [2024-11-09 07:09:51,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:09:51,345 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:09:51,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:09:51,349 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:09:51,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:09:51,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:09:51" (1/1) ... [2024-11-09 07:09:51,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@511879d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:51, skipping insertion in model container [2024-11-09 07:09:51,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:09:51" (1/1) ... [2024-11-09 07:09:51,454 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:09:52,182 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_86498642-b763-416b-9517-daa4c3f79dde/sv-benchmarks/c/product-lines/email_spec4_product13.cil.c[42804,42817] [2024-11-09 07:09:52,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:09:52,344 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:09:52,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [48] [2024-11-09 07:09:52,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [90] [2024-11-09 07:09:52,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [456] [2024-11-09 07:09:52,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [474] [2024-11-09 07:09:52,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [512] [2024-11-09 07:09:52,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1591] [2024-11-09 07:09:52,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1871] [2024-11-09 07:09:52,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1880] [2024-11-09 07:09:52,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2093] [2024-11-09 07:09:52,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2504] [2024-11-09 07:09:52,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2758] [2024-11-09 07:09:52,478 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_86498642-b763-416b-9517-daa4c3f79dde/sv-benchmarks/c/product-lines/email_spec4_product13.cil.c[42804,42817] [2024-11-09 07:09:52,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:09:52,598 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:09:52,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52 WrapperNode [2024-11-09 07:09:52,599 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:09:52,601 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:09:52,601 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:09:52,601 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:09:52,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52" (1/1) ... [2024-11-09 07:09:52,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52" (1/1) ... [2024-11-09 07:09:52,811 INFO L138 Inliner]: procedures = 124, calls = 177, calls flagged for inlining = 53, calls inlined = 44, statements flattened = 842 [2024-11-09 07:09:52,812 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:09:52,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:09:52,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:09:52,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:09:52,835 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52" (1/1) ... [2024-11-09 07:09:52,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52" (1/1) ... [2024-11-09 07:09:52,843 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52" (1/1) ... [2024-11-09 07:09:52,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52" (1/1) ... [2024-11-09 07:09:52,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52" (1/1) ... [2024-11-09 07:09:52,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52" (1/1) ... [2024-11-09 07:09:52,879 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52" (1/1) ... [2024-11-09 07:09:52,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52" (1/1) ... [2024-11-09 07:09:52,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:09:52,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:09:52,903 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:09:52,903 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:09:52,905 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52" (1/1) ... [2024-11-09 07:09:52,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:09:52,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:09:52,962 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:09:52,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:09:53,005 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-09 07:09:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-09 07:09:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 07:09:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 07:09:53,006 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 07:09:53,006 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 07:09:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 07:09:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 07:09:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 07:09:53,007 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 07:09:53,007 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-09 07:09:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-09 07:09:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 07:09:53,008 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 07:09:53,008 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 07:09:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 07:09:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 07:09:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 07:09:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:09:53,009 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-09 07:09:53,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-09 07:09:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 07:09:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 07:09:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 07:09:53,010 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 07:09:53,010 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 07:09:53,011 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 07:09:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 07:09:53,011 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 07:09:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 07:09:53,011 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 07:09:53,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:09:53,012 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 07:09:53,012 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 07:09:53,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:09:53,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:09:53,285 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:09:53,288 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:09:54,672 INFO L? ?]: Removed 363 outVars from TransFormulas that were not future-live. [2024-11-09 07:09:54,672 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:09:55,460 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:09:55,461 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:09:55,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:09:55 BoogieIcfgContainer [2024-11-09 07:09:55,461 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:09:55,471 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:09:55,471 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:09:55,476 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:09:55,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:09:51" (1/3) ... [2024-11-09 07:09:55,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e51480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:09:55, skipping insertion in model container [2024-11-09 07:09:55,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:09:52" (2/3) ... [2024-11-09 07:09:55,478 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78e51480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:09:55, skipping insertion in model container [2024-11-09 07:09:55,478 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:09:55" (3/3) ... [2024-11-09 07:09:55,484 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product13.cil.c [2024-11-09 07:09:55,512 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:09:55,512 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:09:55,617 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:09:55,627 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;@3f71c02a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:09:55,628 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:09:55,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 140 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 87 states have internal predecessors, (117), 37 states have call successors, (37), 16 states have call predecessors, (37), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-09 07:09:55,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 07:09:55,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:09:55,654 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] [2024-11-09 07:09:55,655 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:09:55,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:55,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1984123321, now seen corresponding path program 1 times [2024-11-09 07:09:55,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:09:55,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837942483] [2024-11-09 07:09:55,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:55,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:56,325 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:09:56,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:09:56,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837942483] [2024-11-09 07:09:56,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837942483] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:56,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:56,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:09:56,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735700841] [2024-11-09 07:09:56,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:56,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:09:56,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:09:56,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:09:56,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:09:56,383 INFO L87 Difference]: Start difference. First operand has 140 states, 85 states have (on average 1.3764705882352941) internal successors, (117), 87 states have internal predecessors, (117), 37 states have call successors, (37), 16 states have call predecessors, (37), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:09:56,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:09:56,526 INFO L93 Difference]: Finished difference Result 197 states and 260 transitions. [2024-11-09 07:09:56,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:09:56,529 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 55 [2024-11-09 07:09:56,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:09:56,542 INFO L225 Difference]: With dead ends: 197 [2024-11-09 07:09:56,543 INFO L226 Difference]: Without dead ends: 137 [2024-11-09 07:09:56,547 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 07:09:56,553 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:09:56,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:09:56,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-09 07:09:56,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-09 07:09:56,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 83 states have (on average 1.3373493975903614) internal successors, (111), 84 states have internal predecessors, (111), 37 states have call successors, (37), 16 states have call predecessors, (37), 16 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 07:09:56,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 184 transitions. [2024-11-09 07:09:56,635 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 184 transitions. Word has length 55 [2024-11-09 07:09:56,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:09:56,638 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 184 transitions. [2024-11-09 07:09:56,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:09:56,639 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 184 transitions. [2024-11-09 07:09:56,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 07:09:56,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:09:56,646 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] [2024-11-09 07:09:56,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:09:56,649 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:09:56,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:56,650 INFO L85 PathProgramCache]: Analyzing trace with hash -837430023, now seen corresponding path program 1 times [2024-11-09 07:09:56,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:09:56,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030739608] [2024-11-09 07:09:56,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:56,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:57,010 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:09:57,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:09:57,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030739608] [2024-11-09 07:09:57,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030739608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:57,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:57,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:09:57,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162631472] [2024-11-09 07:09:57,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:57,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:57,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:09:57,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:57,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:57,021 INFO L87 Difference]: Start difference. First operand 137 states and 184 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:09:57,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:09:57,201 INFO L93 Difference]: Finished difference Result 193 states and 248 transitions. [2024-11-09 07:09:57,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:57,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2024-11-09 07:09:57,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:09:57,213 INFO L225 Difference]: With dead ends: 193 [2024-11-09 07:09:57,213 INFO L226 Difference]: Without dead ends: 139 [2024-11-09 07:09:57,214 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 07:09:57,216 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:09:57,219 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:09:57,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-09 07:09:57,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-09 07:09:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 85 states have (on average 1.3294117647058823) internal successors, (113), 86 states have internal predecessors, (113), 37 states have call successors, (37), 16 states have call predecessors, (37), 16 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-09 07:09:57,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 186 transitions. [2024-11-09 07:09:57,260 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 186 transitions. Word has length 56 [2024-11-09 07:09:57,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:09:57,261 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 186 transitions. [2024-11-09 07:09:57,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:09:57,262 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 186 transitions. [2024-11-09 07:09:57,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-09 07:09:57,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:09:57,265 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:57,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:09:57,266 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:09:57,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:57,267 INFO L85 PathProgramCache]: Analyzing trace with hash 139588040, now seen corresponding path program 1 times [2024-11-09 07:09:57,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:09:57,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069749172] [2024-11-09 07:09:57,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:57,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:57,517 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:09:57,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:09:57,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069749172] [2024-11-09 07:09:57,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069749172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:09:57,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:09:57,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:09:57,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364575933] [2024-11-09 07:09:57,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:09:57,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:09:57,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:09:57,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:09:57,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:09:57,525 INFO L87 Difference]: Start difference. First operand 139 states and 186 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:09:57,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:09:57,736 INFO L93 Difference]: Finished difference Result 308 states and 431 transitions. [2024-11-09 07:09:57,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:09:57,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 61 [2024-11-09 07:09:57,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:09:57,740 INFO L225 Difference]: With dead ends: 308 [2024-11-09 07:09:57,745 INFO L226 Difference]: Without dead ends: 187 [2024-11-09 07:09:57,746 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 07:09:57,748 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 57 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:09:57,753 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 333 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:09:57,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-11-09 07:09:57,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 182. [2024-11-09 07:09:57,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 117 states have (on average 1.4188034188034189) internal successors, (166), 118 states have internal predecessors, (166), 48 states have call successors, (48), 16 states have call predecessors, (48), 16 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 07:09:57,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 261 transitions. [2024-11-09 07:09:57,803 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 261 transitions. Word has length 61 [2024-11-09 07:09:57,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:09:57,804 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 261 transitions. [2024-11-09 07:09:57,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:09:57,805 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 261 transitions. [2024-11-09 07:09:57,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 07:09:57,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:09:57,812 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:09:57,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:09:57,813 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:09:57,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:09:57,813 INFO L85 PathProgramCache]: Analyzing trace with hash -380084749, now seen corresponding path program 1 times [2024-11-09 07:09:57,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:09:57,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530204466] [2024-11-09 07:09:57,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:57,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:09:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:09:58,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:09:58,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530204466] [2024-11-09 07:09:58,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530204466] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:09:58,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489423520] [2024-11-09 07:09:58,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:09:58,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:09:58,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:09:58,186 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:09:58,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:09:58,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:09:58,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:09:58,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:09:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:09:59,001 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:09:59,162 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:09:59,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489423520] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:09:59,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [159666296] [2024-11-09 07:09:59,201 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2024-11-09 07:09:59,201 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:09:59,207 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:09:59,216 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:09:59,217 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:10:39,930 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 07:10:40,219 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-09 07:10:40,476 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:10:50,407 WARN L286 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 421 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:11:56,650 WARN L286 SmtUtils]: Spent 12.79s on a formula simplification. DAG size of input: 450 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:12:07,766 WARN L286 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 454 DAG size of output: 451 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:12:13,118 WARN L286 SmtUtils]: Spent 5.05s on a formula simplification that was a NOOP. DAG size: 438 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:12:13,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [159666296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:12:13,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:12:13,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 07:12:13,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898878149] [2024-11-09 07:12:13,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:12:13,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 07:12:13,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:12:13,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 07:12:13,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 07:12:13,545 INFO L87 Difference]: Start difference. First operand 182 states and 261 transitions. Second operand has 23 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 07:12:21,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:21,469 INFO L93 Difference]: Finished difference Result 378 states and 558 transitions. [2024-11-09 07:12:21,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 07:12:21,470 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 62 [2024-11-09 07:12:21,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:21,474 INFO L225 Difference]: With dead ends: 378 [2024-11-09 07:12:21,474 INFO L226 Difference]: Without dead ends: 214 [2024-11-09 07:12:21,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 160 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 93.1s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 07:12:21,477 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 25 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 1605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:12:21,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2145 Invalid, 1605 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1596 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-09 07:12:21,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-09 07:12:21,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 205. [2024-11-09 07:12:21,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 139 states have (on average 1.4316546762589928) internal successors, (199), 140 states have internal predecessors, (199), 48 states have call successors, (48), 17 states have call predecessors, (48), 17 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 07:12:21,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 294 transitions. [2024-11-09 07:12:21,590 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 294 transitions. Word has length 62 [2024-11-09 07:12:21,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:21,593 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 294 transitions. [2024-11-09 07:12:21,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.066666666666667) internal successors, (31), 14 states have internal predecessors, (31), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 07:12:21,593 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 294 transitions. [2024-11-09 07:12:21,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 07:12:21,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:21,600 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:12:21,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:12:21,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:12:21,801 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:12:21,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:21,802 INFO L85 PathProgramCache]: Analyzing trace with hash -132608812, now seen corresponding path program 1 times [2024-11-09 07:12:21,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:12:21,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151196369] [2024-11-09 07:12:21,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:21,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:12:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:21,965 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:12:21,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:12:21,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151196369] [2024-11-09 07:12:21,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151196369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:12:21,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:12:21,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:12:21,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088779008] [2024-11-09 07:12:21,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:12:21,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:12:21,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:12:21,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:12:21,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:12:21,971 INFO L87 Difference]: Start difference. First operand 205 states and 294 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 07:12:22,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:12:22,185 INFO L93 Difference]: Finished difference Result 503 states and 752 transitions. [2024-11-09 07:12:22,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:12:22,185 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2024-11-09 07:12:22,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:12:22,189 INFO L225 Difference]: With dead ends: 503 [2024-11-09 07:12:22,189 INFO L226 Difference]: Without dead ends: 322 [2024-11-09 07:12:22,190 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 07:12:22,191 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 55 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:12:22,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 335 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:12:22,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-09 07:12:22,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 317. [2024-11-09 07:12:22,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 226 states have (on average 1.4823008849557522) internal successors, (335), 227 states have internal predecessors, (335), 73 states have call successors, (73), 17 states have call predecessors, (73), 17 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-09 07:12:22,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 480 transitions. [2024-11-09 07:12:22,296 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 480 transitions. Word has length 67 [2024-11-09 07:12:22,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:12:22,297 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 480 transitions. [2024-11-09 07:12:22,297 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, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-09 07:12:22,297 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 480 transitions. [2024-11-09 07:12:22,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 07:12:22,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:12:22,300 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:12:22,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:12:22,301 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:12:22,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:12:22,302 INFO L85 PathProgramCache]: Analyzing trace with hash -2080505534, now seen corresponding path program 1 times [2024-11-09 07:12:22,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:12:22,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064835635] [2024-11-09 07:12:22,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:22,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:12:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:22,461 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:12:22,462 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:12:22,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064835635] [2024-11-09 07:12:22,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064835635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:12:22,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29881552] [2024-11-09 07:12:22,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:12:22,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:12:22,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:12:22,465 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:12:22,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:12:22,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:12:22,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:12:22,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:12:22,912 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:12:22,912 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:12:23,018 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:12:23,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29881552] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:12:23,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [310013043] [2024-11-09 07:12:23,023 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-09 07:12:23,023 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:12:23,024 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:12:23,024 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:12:23,024 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:13:08,930 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 07:13:09,092 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-09 07:13:10,603 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:13:38,227 WARN L286 SmtUtils]: Spent 8.73s on a formula simplification. DAG size of input: 431 DAG size of output: 431 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:13:51,822 WARN L286 SmtUtils]: Spent 13.10s 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 07:14:39,062 WARN L286 SmtUtils]: Spent 12.34s on a formula simplification. DAG size of input: 452 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:15:09,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [310013043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:15:09,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:15:09,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-09 07:15:09,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599909653] [2024-11-09 07:15:09,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:15:09,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 07:15:09,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:15:09,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 07:15:09,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:15:09,011 INFO L87 Difference]: Start difference. First operand 317 states and 480 transitions. Second operand has 26 states, 17 states have (on average 2.0) internal successors, (34), 16 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-09 07:15:18,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:15:18,869 INFO L93 Difference]: Finished difference Result 642 states and 999 transitions. [2024-11-09 07:15:18,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 07:15:18,871 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.0) internal successors, (34), 16 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 68 [2024-11-09 07:15:18,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:15:18,874 INFO L225 Difference]: With dead ends: 642 [2024-11-09 07:15:18,876 INFO L226 Difference]: Without dead ends: 388 [2024-11-09 07:15:18,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 175 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 118.4s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:15:18,879 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 41 mSDsluCounter, 1938 mSDsCounter, 0 mSdLazyCounter, 1796 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 2079 SdHoareTripleChecker+Invalid, 1804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:15:18,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 2079 Invalid, 1804 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1796 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-11-09 07:15:18,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2024-11-09 07:15:18,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 331. [2024-11-09 07:15:18,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 238 states have (on average 1.4789915966386555) internal successors, (352), 239 states have internal predecessors, (352), 74 states have call successors, (74), 18 states have call predecessors, (74), 18 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-09 07:15:18,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 499 transitions. [2024-11-09 07:15:18,986 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 499 transitions. Word has length 68 [2024-11-09 07:15:18,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:15:18,987 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 499 transitions. [2024-11-09 07:15:18,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.0) internal successors, (34), 16 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-09 07:15:18,987 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 499 transitions. [2024-11-09 07:15:18,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 07:15:18,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:15:18,990 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:15:19,014 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:15:19,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:15:19,191 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:15:19,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:15:19,191 INFO L85 PathProgramCache]: Analyzing trace with hash -581599617, now seen corresponding path program 1 times [2024-11-09 07:15:19,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:15:19,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562742393] [2024-11-09 07:15:19,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:19,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:15:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:19,348 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:15:19,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:15:19,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562742393] [2024-11-09 07:15:19,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562742393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:15:19,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954960427] [2024-11-09 07:15:19,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:15:19,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:15:19,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:15:19,356 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:15:19,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:15:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:15:19,695 INFO L255 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:15:19,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:15:19,731 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:15:19,731 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:15:19,810 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:15:19,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954960427] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:15:19,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1126511262] [2024-11-09 07:15:19,813 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2024-11-09 07:15:19,814 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:15:19,814 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:15:19,815 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:15:19,815 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:16:47,969 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 07:16:48,125 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 477 for LOIs [2024-11-09 07:16:49,415 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 422 for LOIs [2024-11-09 07:16:49,876 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-09 07:16:50,027 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 486 for LOIs [2024-11-09 07:16:51,266 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:17:57,638 WARN L286 SmtUtils]: Spent 14.65s on a formula simplification. DAG size of input: 510 DAG size of output: 505 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:18:04,785 WARN L286 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 512 DAG size of output: 503 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:18:27,656 WARN L286 SmtUtils]: Spent 5.84s on a formula simplification. DAG size of input: 491 DAG size of output: 491 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:18:34,699 WARN L286 SmtUtils]: Spent 6.45s on a formula simplification. DAG size of input: 496 DAG size of output: 492 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:18:40,949 WARN L286 SmtUtils]: Spent 5.69s 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 07:18:47,126 WARN L286 SmtUtils]: Spent 5.63s 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 07:18:58,347 WARN L286 SmtUtils]: Spent 5.34s 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 07:19:04,880 WARN L286 SmtUtils]: Spent 5.93s 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 07:19:11,263 WARN L286 SmtUtils]: Spent 5.65s 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 07:19:11,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1126511262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:19:11,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:19:11,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-09 07:19:11,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791149194] [2024-11-09 07:19:11,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:19:11,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 07:19:11,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:19:11,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 07:19:11,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 07:19:11,710 INFO L87 Difference]: Start difference. First operand 331 states and 499 transitions. Second operand has 33 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-09 07:19:26,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:19:26,007 INFO L93 Difference]: Finished difference Result 667 states and 1034 transitions. [2024-11-09 07:19:26,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 07:19:26,008 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 71 [2024-11-09 07:19:26,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:19:26,012 INFO L225 Difference]: With dead ends: 667 [2024-11-09 07:19:26,012 INFO L226 Difference]: Without dead ends: 413 [2024-11-09 07:19:26,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 140.4s TimeCoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 07:19:26,016 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 50 mSDsluCounter, 2602 mSDsCounter, 0 mSdLazyCounter, 2763 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 2772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:19:26,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 2742 Invalid, 2772 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2763 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2024-11-09 07:19:26,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-09 07:19:26,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 367. [2024-11-09 07:19:26,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 268 states have (on average 1.4701492537313432) internal successors, (394), 269 states have internal predecessors, (394), 77 states have call successors, (77), 21 states have call predecessors, (77), 21 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-09 07:19:26,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 547 transitions. [2024-11-09 07:19:26,180 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 547 transitions. Word has length 71 [2024-11-09 07:19:26,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:19:26,181 INFO L471 AbstractCegarLoop]: Abstraction has 367 states and 547 transitions. [2024-11-09 07:19:26,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-09 07:19:26,181 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 547 transitions. [2024-11-09 07:19:26,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 07:19:26,183 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:19:26,183 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:19:26,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 07:19:26,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 07:19:26,385 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:19:26,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:19:26,385 INFO L85 PathProgramCache]: Analyzing trace with hash 865040758, now seen corresponding path program 1 times [2024-11-09 07:19:26,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:19:26,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430004457] [2024-11-09 07:19:26,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:19:26,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:19:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:19:26,536 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:19:26,536 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:19:26,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430004457] [2024-11-09 07:19:26,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430004457] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:19:26,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [857236793] [2024-11-09 07:19:26,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:19:26,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:19:26,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:19:26,542 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:19:26,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:19:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:19:26,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:19:26,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:19:26,928 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:19:26,929 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:19:27,028 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:19:27,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [857236793] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:19:27,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [334893319] [2024-11-09 07:19:27,032 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2024-11-09 07:19:27,032 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:19:27,033 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:19:27,033 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:19:27,033 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:20:09,127 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 07:20:09,384 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-09 07:20:09,540 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:21:18,205 WARN L286 SmtUtils]: Spent 12.07s on a formula simplification. DAG size of input: 450 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:21:52,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [334893319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:21:52,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:21:52,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-09 07:21:52,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446406215] [2024-11-09 07:21:52,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:21:52,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 07:21:52,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:21:52,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 07:21:52,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 07:21:52,103 INFO L87 Difference]: Start difference. First operand 367 states and 547 transitions. Second operand has 27 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 07:22:02,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:02,072 INFO L93 Difference]: Finished difference Result 669 states and 1025 transitions. [2024-11-09 07:22:02,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 07:22:02,073 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 70 [2024-11-09 07:22:02,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:02,076 INFO L225 Difference]: With dead ends: 669 [2024-11-09 07:22:02,077 INFO L226 Difference]: Without dead ends: 415 [2024-11-09 07:22:02,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 180 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 102.6s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 07:22:02,079 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 17 mSDsluCounter, 2112 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 2092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:02,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2246 Invalid, 2092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-09 07:22:02,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-09 07:22:02,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 387. [2024-11-09 07:22:02,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 288 states have (on average 1.4722222222222223) internal successors, (424), 289 states have internal predecessors, (424), 77 states have call successors, (77), 21 states have call predecessors, (77), 21 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-09 07:22:02,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 577 transitions. [2024-11-09 07:22:02,263 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 577 transitions. Word has length 70 [2024-11-09 07:22:02,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:02,263 INFO L471 AbstractCegarLoop]: Abstraction has 387 states and 577 transitions. [2024-11-09 07:22:02,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-09 07:22:02,263 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 577 transitions. [2024-11-09 07:22:02,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 07:22:02,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:02,266 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:02,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 07:22:02,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:02,471 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:22:02,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:02,472 INFO L85 PathProgramCache]: Analyzing trace with hash -2098429030, now seen corresponding path program 1 times [2024-11-09 07:22:02,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:22:02,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678732709] [2024-11-09 07:22:02,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:02,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:22:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:03,873 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-09 07:22:03,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:22:03,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678732709] [2024-11-09 07:22:03,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678732709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:22:03,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:22:03,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-09 07:22:03,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033698821] [2024-11-09 07:22:03,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:22:03,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 07:22:03,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:22:03,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 07:22:03,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-09 07:22:03,876 INFO L87 Difference]: Start difference. First operand 387 states and 577 transitions. Second operand has 19 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 states have internal predecessors, (35), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-09 07:22:05,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:22:05,191 INFO L93 Difference]: Finished difference Result 406 states and 599 transitions. [2024-11-09 07:22:05,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 07:22:05,192 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 states have internal predecessors, (35), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 73 [2024-11-09 07:22:05,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:22:05,195 INFO L225 Difference]: With dead ends: 406 [2024-11-09 07:22:05,195 INFO L226 Difference]: Without dead ends: 403 [2024-11-09 07:22:05,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:22:05,197 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 116 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:22:05,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 1726 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 07:22:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-09 07:22:05,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 402. [2024-11-09 07:22:05,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 297 states have (on average 1.4545454545454546) internal successors, (432), 297 states have internal predecessors, (432), 81 states have call successors, (81), 24 states have call predecessors, (81), 23 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-09 07:22:05,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 593 transitions. [2024-11-09 07:22:05,446 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 593 transitions. Word has length 73 [2024-11-09 07:22:05,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:22:05,447 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 593 transitions. [2024-11-09 07:22:05,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 14 states have internal predecessors, (35), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-09 07:22:05,448 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 593 transitions. [2024-11-09 07:22:05,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-09 07:22:05,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:22:05,451 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:22:05,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:22:05,452 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:22:05,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:22:05,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1656461645, now seen corresponding path program 1 times [2024-11-09 07:22:05,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:22:05,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949699814] [2024-11-09 07:22:05,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:05,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:22:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:05,689 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 07:22:05,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:22:05,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949699814] [2024-11-09 07:22:05,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949699814] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:22:05,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802626617] [2024-11-09 07:22:05,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:22:05,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:05,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:22:05,693 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:22:05,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86498642-b763-416b-9517-daa4c3f79dde/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:22:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:06,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:22:06,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 07:22:06,160 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 07:22:06,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802626617] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:06,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [715851580] [2024-11-09 07:22:06,333 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-09 07:22:06,334 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:22:06,334 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:22:06,334 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:22:06,334 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:22:44,873 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 07:22:45,010 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-09 07:22:46,444 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 251 for LOIs [2024-11-09 07:22:48,724 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 246 for LOIs [2024-11-09 07:22:59,206 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 238 for LOIs [2024-11-09 07:22:59,312 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 254 for LOIs [2024-11-09 07:23:00,152 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 238 for LOIs [2024-11-09 07:23:00,271 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 236 for LOIs [2024-11-09 07:23:00,367 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 259 for LOIs [2024-11-09 07:23:00,547 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:23:26,859 WARN L286 SmtUtils]: Spent 8.47s on a formula simplification. DAG size of input: 431 DAG size of output: 431 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:23:40,795 WARN L286 SmtUtils]: Spent 13.35s 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)