./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/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_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/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_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/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 bf462270e0c7c70d13b1dd17e19a66c26542ea365ec57459489c94e9a63941a0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:13:15,800 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:13:15,902 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 06:13:15,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:13:15,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:13:15,973 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:13:15,973 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:13:15,974 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:13:15,975 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:13:15,976 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:13:15,976 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:13:15,977 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:13:15,977 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:13:15,978 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:13:15,982 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:13:15,982 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:13:15,983 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:13:15,984 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:13:15,984 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:13:15,985 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:13:15,985 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:13:15,986 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:13:15,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:13:15,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:13:15,989 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 06:13:15,990 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:13:15,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 06:13:15,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:13:15,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:13:15,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:13:15,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:13:15,993 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:13:15,993 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 06:13:15,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:13:15,994 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:13:15,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:13:15,995 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:13:15,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:13:15,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:13:16,011 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:13:16,011 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:13:16,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:13:16,012 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:13:16,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:13:16,012 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:13:16,013 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:13:16,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:13:16,013 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_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf462270e0c7c70d13b1dd17e19a66c26542ea365ec57459489c94e9a63941a0 [2024-11-09 06:13:16,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:13:16,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:13:16,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:13:16,423 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:13:16,424 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:13:16,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec4_product18.cil.c Unable to find full path for "g++" [2024-11-09 06:13:18,504 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:13:18,953 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:13:18,954 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/sv-benchmarks/c/product-lines/email_spec4_product18.cil.c [2024-11-09 06:13:18,979 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/data/a16e4a7d1/e02f242d615c45e397f38020183aa14c/FLAG1ffe881eb [2024-11-09 06:13:18,998 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/data/a16e4a7d1/e02f242d615c45e397f38020183aa14c [2024-11-09 06:13:19,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:13:19,003 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:13:19,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:13:19,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:13:19,012 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:13:19,013 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:13:18" (1/1) ... [2024-11-09 06:13:19,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47dbf5ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:19, skipping insertion in model container [2024-11-09 06:13:19,016 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:13:18" (1/1) ... [2024-11-09 06:13:19,111 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:13:19,915 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_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/sv-benchmarks/c/product-lines/email_spec4_product18.cil.c[61907,61920] [2024-11-09 06:13:19,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:13:19,955 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:13:19,970 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-11-09 06:13:19,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1128] [2024-11-09 06:13:19,973 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1540] [2024-11-09 06:13:19,973 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1847] [2024-11-09 06:13:19,973 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1946] [2024-11-09 06:13:19,974 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2162] [2024-11-09 06:13:19,974 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2528] [2024-11-09 06:13:19,974 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2563] [2024-11-09 06:13:19,975 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2591] [2024-11-09 06:13:19,975 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2877] [2024-11-09 06:13:19,975 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2886] [2024-11-09 06:13:20,138 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_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/sv-benchmarks/c/product-lines/email_spec4_product18.cil.c[61907,61920] [2024-11-09 06:13:20,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:13:20,188 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:13:20,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20 WrapperNode [2024-11-09 06:13:20,190 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:13:20,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:13:20,191 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:13:20,192 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:13:20,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20" (1/1) ... [2024-11-09 06:13:20,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20" (1/1) ... [2024-11-09 06:13:20,311 INFO L138 Inliner]: procedures = 127, calls = 185, calls flagged for inlining = 58, calls inlined = 49, statements flattened = 894 [2024-11-09 06:13:20,312 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:13:20,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:13:20,313 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:13:20,313 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:13:20,326 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20" (1/1) ... [2024-11-09 06:13:20,327 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20" (1/1) ... [2024-11-09 06:13:20,336 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20" (1/1) ... [2024-11-09 06:13:20,340 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20" (1/1) ... [2024-11-09 06:13:20,369 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20" (1/1) ... [2024-11-09 06:13:20,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20" (1/1) ... [2024-11-09 06:13:20,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20" (1/1) ... [2024-11-09 06:13:20,407 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20" (1/1) ... [2024-11-09 06:13:20,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:13:20,422 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:13:20,422 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:13:20,422 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:13:20,423 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20" (1/1) ... [2024-11-09 06:13:20,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:13:20,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:13:20,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:13:20,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:13:20,521 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-09 06:13:20,522 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-09 06:13:20,523 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 06:13:20,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 06:13:20,523 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 06:13:20,524 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 06:13:20,525 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 06:13:20,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 06:13:20,525 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 06:13:20,526 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 06:13:20,526 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-09 06:13:20,527 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-09 06:13:20,527 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 06:13:20,528 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 06:13:20,528 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 06:13:20,528 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 06:13:20,528 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 06:13:20,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 06:13:20,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:13:20,532 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-09 06:13:20,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-09 06:13:20,532 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 06:13:20,532 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 06:13:20,533 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 06:13:20,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 06:13:20,533 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 06:13:20,533 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 06:13:20,533 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 06:13:20,534 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 06:13:20,534 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 06:13:20,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 06:13:20,534 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 06:13:20,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 06:13:20,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:13:20,535 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 06:13:20,535 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 06:13:20,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:13:20,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:13:20,874 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:13:20,879 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:13:21,960 INFO L? ?]: Removed 394 outVars from TransFormulas that were not future-live. [2024-11-09 06:13:21,961 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:13:22,716 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:13:22,717 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:13:22,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:13:22 BoogieIcfgContainer [2024-11-09 06:13:22,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:13:22,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:13:22,724 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:13:22,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:13:22,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:13:18" (1/3) ... [2024-11-09 06:13:22,730 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1068f37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:13:22, skipping insertion in model container [2024-11-09 06:13:22,730 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:13:20" (2/3) ... [2024-11-09 06:13:22,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1068f37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:13:22, skipping insertion in model container [2024-11-09 06:13:22,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:13:22" (3/3) ... [2024-11-09 06:13:22,735 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product18.cil.c [2024-11-09 06:13:22,762 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:13:22,763 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:13:22,861 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:13:22,869 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;@7458a3ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:13:22,873 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:13:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 92 states have internal predecessors, (123), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-09 06:13:22,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 06:13:22,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:22,895 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:13:22,895 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:13:22,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:22,901 INFO L85 PathProgramCache]: Analyzing trace with hash 172652263, now seen corresponding path program 1 times [2024-11-09 06:13:22,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:13:22,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009369637] [2024-11-09 06:13:22,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:22,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:13:23,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:23,352 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 06:13:23,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:13:23,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009369637] [2024-11-09 06:13:23,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009369637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:23,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:23,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:13:23,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277100005] [2024-11-09 06:13:23,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:23,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:13:23,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:13:23,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:13:23,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:13:23,400 INFO L87 Difference]: Start difference. First operand has 149 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 92 states have internal predecessors, (123), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (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 06:13:23,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:23,525 INFO L93 Difference]: Finished difference Result 215 states and 284 transitions. [2024-11-09 06:13:23,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:13:23,530 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (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 58 [2024-11-09 06:13:23,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:23,544 INFO L225 Difference]: With dead ends: 215 [2024-11-09 06:13:23,544 INFO L226 Difference]: Without dead ends: 146 [2024-11-09 06:13:23,550 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 06:13:23,556 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:23,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:13:23,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-09 06:13:23,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2024-11-09 06:13:23,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 88 states have (on average 1.3295454545454546) internal successors, (117), 89 states have internal predecessors, (117), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-09 06:13:23,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 196 transitions. [2024-11-09 06:13:23,633 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 196 transitions. Word has length 58 [2024-11-09 06:13:23,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:23,635 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 196 transitions. [2024-11-09 06:13:23,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (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 06:13:23,636 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 196 transitions. [2024-11-09 06:13:23,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 06:13:23,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:23,640 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:13:23,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:13:23,641 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:13:23,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:23,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1197978334, now seen corresponding path program 1 times [2024-11-09 06:13:23,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:13:23,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170891223] [2024-11-09 06:13:23,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:23,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:13:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:23,968 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 06:13:23,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:13:23,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170891223] [2024-11-09 06:13:23,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170891223] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:23,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:23,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:13:23,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902640346] [2024-11-09 06:13:23,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:23,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:13:23,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:13:23,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:13:23,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:13:23,973 INFO L87 Difference]: Start difference. First operand 146 states and 196 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (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 06:13:24,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:24,144 INFO L93 Difference]: Finished difference Result 211 states and 272 transitions. [2024-11-09 06:13:24,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:13:24,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (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 59 [2024-11-09 06:13:24,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:24,149 INFO L225 Difference]: With dead ends: 211 [2024-11-09 06:13:24,149 INFO L226 Difference]: Without dead ends: 148 [2024-11-09 06:13:24,153 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 06:13:24,155 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 0 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:24,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 337 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:13:24,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-09 06:13:24,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-09 06:13:24,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 90 states have (on average 1.3222222222222222) internal successors, (119), 91 states have internal predecessors, (119), 40 states have call successors, (40), 17 states have call predecessors, (40), 17 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-09 06:13:24,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 198 transitions. [2024-11-09 06:13:24,189 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 198 transitions. Word has length 59 [2024-11-09 06:13:24,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:24,190 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 198 transitions. [2024-11-09 06:13:24,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (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 06:13:24,190 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 198 transitions. [2024-11-09 06:13:24,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 06:13:24,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:24,197 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] [2024-11-09 06:13:24,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:13:24,197 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:13:24,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:24,198 INFO L85 PathProgramCache]: Analyzing trace with hash -918881628, now seen corresponding path program 1 times [2024-11-09 06:13:24,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:13:24,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521996861] [2024-11-09 06:13:24,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:24,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:13:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:24,435 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 06:13:24,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:13:24,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521996861] [2024-11-09 06:13:24,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521996861] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:24,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:24,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:13:24,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982697884] [2024-11-09 06:13:24,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:24,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:13:24,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:13:24,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:13:24,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:13:24,441 INFO L87 Difference]: Start difference. First operand 148 states and 198 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (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 06:13:24,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:24,592 INFO L93 Difference]: Finished difference Result 326 states and 455 transitions. [2024-11-09 06:13:24,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:13:24,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (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 64 [2024-11-09 06:13:24,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:24,597 INFO L225 Difference]: With dead ends: 326 [2024-11-09 06:13:24,597 INFO L226 Difference]: Without dead ends: 196 [2024-11-09 06:13:24,602 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 06:13:24,603 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 57 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:24,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 338 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:13:24,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-09 06:13:24,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 191. [2024-11-09 06:13:24,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 122 states have (on average 1.4098360655737705) internal successors, (172), 123 states have internal predecessors, (172), 51 states have call successors, (51), 17 states have call predecessors, (51), 17 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 06:13:24,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 273 transitions. [2024-11-09 06:13:24,646 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 273 transitions. Word has length 64 [2024-11-09 06:13:24,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:24,647 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 273 transitions. [2024-11-09 06:13:24,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (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 06:13:24,650 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 273 transitions. [2024-11-09 06:13:24,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 06:13:24,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:24,657 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] [2024-11-09 06:13:24,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:13:24,657 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:13:24,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:24,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1074941509, now seen corresponding path program 1 times [2024-11-09 06:13:24,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:13:24,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534436236] [2024-11-09 06:13:24,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:24,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:13:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:24,926 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 06:13:24,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:13:24,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534436236] [2024-11-09 06:13:24,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534436236] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:13:24,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088012059] [2024-11-09 06:13:24,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:24,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:13:24,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:13:24,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:13:24,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:13:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:25,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:13:25,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:13:25,457 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 06:13:25,457 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:13:25,586 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 06:13:25,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088012059] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:13:25,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [116779322] [2024-11-09 06:13:25,616 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2024-11-09 06:13:25,616 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:13:25,622 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:13:25,628 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:13:25,629 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:13:57,113 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 06:13:57,341 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2024-11-09 06:13:57,475 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:14:56,943 WARN L286 SmtUtils]: Spent 10.03s on a formula simplification. DAG size of input: 447 DAG size of output: 447 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:15:10,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [116779322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:10,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:15:10,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 06:15:10,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979810723] [2024-11-09 06:15:10,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:10,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 06:15:10,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:15:10,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 06:15:10,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 06:15:10,286 INFO L87 Difference]: Start difference. First operand 191 states and 273 transitions. Second operand has 23 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-09 06:15:17,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:17,228 INFO L93 Difference]: Finished difference Result 396 states and 582 transitions. [2024-11-09 06:15:17,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 06:15:17,230 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 65 [2024-11-09 06:15:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:17,234 INFO L225 Difference]: With dead ends: 396 [2024-11-09 06:15:17,235 INFO L226 Difference]: Without dead ends: 223 [2024-11-09 06:15:17,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 169 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 72.8s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 06:15:17,237 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 25 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 1489 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 1498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1489 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:17,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2122 Invalid, 1498 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1489 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-09 06:15:17,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-09 06:15:17,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 214. [2024-11-09 06:15:17,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 144 states have (on average 1.4236111111111112) internal successors, (205), 145 states have internal predecessors, (205), 51 states have call successors, (51), 18 states have call predecessors, (51), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 06:15:17,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 306 transitions. [2024-11-09 06:15:17,320 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 306 transitions. Word has length 65 [2024-11-09 06:15:17,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:17,321 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 306 transitions. [2024-11-09 06:15:17,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 14 states have internal predecessors, (32), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-09 06:15:17,321 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 306 transitions. [2024-11-09 06:15:17,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 06:15:17,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:17,325 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, 1, 1] [2024-11-09 06:15:17,348 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:15:17,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:15:17,526 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:17,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:17,526 INFO L85 PathProgramCache]: Analyzing trace with hash 806469153, now seen corresponding path program 1 times [2024-11-09 06:15:17,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:15:17,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76785086] [2024-11-09 06:15:17,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:17,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:17,642 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 06:15:17,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:15:17,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76785086] [2024-11-09 06:15:17,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76785086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:17,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:15:17,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:15:17,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589218503] [2024-11-09 06:15:17,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:17,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:15:17,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:15:17,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:15:17,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:15:17,646 INFO L87 Difference]: Start difference. First operand 214 states and 306 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 06:15:17,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:17,839 INFO L93 Difference]: Finished difference Result 521 states and 776 transitions. [2024-11-09 06:15:17,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:15:17,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2024-11-09 06:15:17,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:17,843 INFO L225 Difference]: With dead ends: 521 [2024-11-09 06:15:17,843 INFO L226 Difference]: Without dead ends: 331 [2024-11-09 06:15:17,844 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 06:15:17,845 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 55 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:17,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 353 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:15:17,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2024-11-09 06:15:17,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 326. [2024-11-09 06:15:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 231 states have (on average 1.4761904761904763) internal successors, (341), 232 states have internal predecessors, (341), 76 states have call successors, (76), 18 states have call predecessors, (76), 18 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-09 06:15:17,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 492 transitions. [2024-11-09 06:15:17,962 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 492 transitions. Word has length 70 [2024-11-09 06:15:17,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:17,963 INFO L471 AbstractCegarLoop]: Abstraction has 326 states and 492 transitions. [2024-11-09 06:15:17,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-09 06:15:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 492 transitions. [2024-11-09 06:15:17,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 06:15:17,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:17,966 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, 1, 1, 1] [2024-11-09 06:15:17,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:15:17,967 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:17,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:17,968 INFO L85 PathProgramCache]: Analyzing trace with hash 661487765, now seen corresponding path program 1 times [2024-11-09 06:15:17,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:15:17,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096828287] [2024-11-09 06:15:17,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:17,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:18,127 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 06:15:18,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:15:18,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096828287] [2024-11-09 06:15:18,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096828287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:15:18,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499390689] [2024-11-09 06:15:18,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:18,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:15:18,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:15:18,131 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:15:18,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 06:15:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:18,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:15:18,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:15:18,527 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 06:15:18,527 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:15:18,625 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 06:15:18,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499390689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:15:18,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [277917160] [2024-11-09 06:15:18,629 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 06:15:18,629 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:15:18,630 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:15:18,631 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:15:18,631 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:15:54,756 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 06:15:54,870 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-09 06:15:56,031 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:16:19,959 WARN L286 SmtUtils]: Spent 7.26s on a formula simplification. DAG size of input: 431 DAG size of output: 432 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:16:30,795 WARN L286 SmtUtils]: Spent 10.42s 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 06:17:10,408 WARN L286 SmtUtils]: Spent 9.84s on a formula simplification. DAG size of input: 448 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:17:35,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [277917160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:17:35,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:17:35,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-09 06:17:35,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281469744] [2024-11-09 06:17:35,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:17:35,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 06:17:35,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:17:35,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 06:17:35,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 06:17:35,117 INFO L87 Difference]: Start difference. First operand 326 states and 492 transitions. Second operand has 26 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-09 06:17:45,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:17:45,162 INFO L93 Difference]: Finished difference Result 660 states and 1023 transitions. [2024-11-09 06:17:45,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 06:17:45,163 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 71 [2024-11-09 06:17:45,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:17:45,166 INFO L225 Difference]: With dead ends: 660 [2024-11-09 06:17:45,167 INFO L226 Difference]: Without dead ends: 397 [2024-11-09 06:17:45,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 184 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 99.1s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-09 06:17:45,169 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 61 mSDsluCounter, 2259 mSDsCounter, 0 mSdLazyCounter, 2087 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 2095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2087 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:17:45,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2410 Invalid, 2095 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2087 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2024-11-09 06:17:45,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-09 06:17:45,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 340. [2024-11-09 06:17:45,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 243 states have (on average 1.4732510288065843) internal successors, (358), 244 states have internal predecessors, (358), 77 states have call successors, (77), 19 states have call predecessors, (77), 19 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-09 06:17:45,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 511 transitions. [2024-11-09 06:17:45,292 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 511 transitions. Word has length 71 [2024-11-09 06:17:45,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:17:45,292 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 511 transitions. [2024-11-09 06:17:45,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 16 states have internal predecessors, (35), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-09 06:17:45,293 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 511 transitions. [2024-11-09 06:17:45,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 06:17:45,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:17:45,296 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, 1, 1, 1] [2024-11-09 06:17:45,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 06:17:45,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:17:45,496 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:17:45,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:17:45,497 INFO L85 PathProgramCache]: Analyzing trace with hash 2054948056, now seen corresponding path program 1 times [2024-11-09 06:17:45,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:17:45,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957386847] [2024-11-09 06:17:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:45,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:17:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:45,775 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 06:17:45,776 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:17:45,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957386847] [2024-11-09 06:17:45,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957386847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:17:45,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547716763] [2024-11-09 06:17:45,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:17:45,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:17:45,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:17:45,784 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:17:45,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 06:17:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:17:46,149 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:17:46,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:17:46,177 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 06:17:46,177 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:17:46,267 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 06:17:46,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547716763] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:17:46,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [150303464] [2024-11-09 06:17:46,270 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2024-11-09 06:17:46,271 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:17:46,271 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:17:46,272 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:17:46,272 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:18:59,409 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 06:18:59,536 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 477 for LOIs [2024-11-09 06:19:00,545 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 422 for LOIs [2024-11-09 06:19:00,919 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2024-11-09 06:19:01,039 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 486 for LOIs [2024-11-09 06:19:01,962 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:20:02,471 WARN L286 SmtUtils]: Spent 12.74s on a formula simplification. DAG size of input: 506 DAG size of output: 501 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:20:08,800 WARN L286 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 508 DAG size of output: 499 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:20:29,712 WARN L286 SmtUtils]: Spent 5.19s on a formula simplification. DAG size of input: 487 DAG size of output: 487 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:20:35,578 WARN L286 SmtUtils]: Spent 5.29s on a formula simplification. DAG size of input: 492 DAG size of output: 488 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:20:41,350 WARN L286 SmtUtils]: Spent 5.26s 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 06:20:47,099 WARN L286 SmtUtils]: Spent 5.27s 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 06:20:52,847 WARN L286 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 482 DAG size of output: 478 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:20:58,853 WARN L286 SmtUtils]: Spent 5.48s 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 06:21:04,852 WARN L286 SmtUtils]: Spent 5.39s 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 06:21:10,702 WARN L286 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 473 DAG size of output: 469 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:21:11,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [150303464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:21:11,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:21:11,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-09 06:21:11,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300010947] [2024-11-09 06:21:11,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:21:11,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 06:21:11,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:21:11,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 06:21:11,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 06:21:11,102 INFO L87 Difference]: Start difference. First operand 340 states and 511 transitions. Second operand has 33 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-09 06:21:25,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:21:25,878 INFO L93 Difference]: Finished difference Result 685 states and 1058 transitions. [2024-11-09 06:21:25,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 06:21:25,879 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 74 [2024-11-09 06:21:25,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:21:25,883 INFO L225 Difference]: With dead ends: 685 [2024-11-09 06:21:25,883 INFO L226 Difference]: Without dead ends: 422 [2024-11-09 06:21:25,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 186 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 129.1s TimeCoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 06:21:25,890 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 100 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 2793 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 2802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-09 06:21:25,891 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 2784 Invalid, 2802 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2793 Invalid, 0 Unknown, 0 Unchecked, 14.5s Time] [2024-11-09 06:21:25,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2024-11-09 06:21:26,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 376. [2024-11-09 06:21:26,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 273 states have (on average 1.465201465201465) internal successors, (400), 274 states have internal predecessors, (400), 80 states have call successors, (80), 22 states have call predecessors, (80), 22 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-09 06:21:26,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 559 transitions. [2024-11-09 06:21:26,065 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 559 transitions. Word has length 74 [2024-11-09 06:21:26,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:21:26,066 INFO L471 AbstractCegarLoop]: Abstraction has 376 states and 559 transitions. [2024-11-09 06:21:26,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-09 06:21:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 559 transitions. [2024-11-09 06:21:26,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 06:21:26,068 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:21:26,069 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, 1, 1] [2024-11-09 06:21:26,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 06:21:26,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:21:26,270 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:21:26,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:21:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash 715689621, now seen corresponding path program 1 times [2024-11-09 06:21:26,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:21:26,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101025599] [2024-11-09 06:21:26,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:21:26,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:21:26,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:21:26,435 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 06:21:26,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:21:26,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101025599] [2024-11-09 06:21:26,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101025599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:21:26,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879427028] [2024-11-09 06:21:26,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:21:26,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:21:26,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:21:26,438 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:21:26,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:21:26,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:21:26,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 06:21:26,799 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:21:26,833 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 06:21:26,833 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:21:26,933 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 06:21:26,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879427028] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:21:26,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [685731143] [2024-11-09 06:21:26,938 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-09 06:21:26,938 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:21:26,939 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:21:26,939 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:21:26,939 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:22:08,952 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 06:22:09,064 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2024-11-09 06:22:09,176 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:23:07,148 WARN L286 SmtUtils]: Spent 10.34s on a formula simplification. DAG size of input: 446 DAG size of output: 446 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:23:18,786 WARN L286 SmtUtils]: Spent 10.52s on a formula simplification. DAG size of input: 447 DAG size of output: 446 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:23:30,493 WARN L286 SmtUtils]: Spent 10.47s on a formula simplification. DAG size of input: 451 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:23:43,709 WARN L286 SmtUtils]: Spent 10.45s on a formula simplification. DAG size of input: 451 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:23:56,724 WARN L286 SmtUtils]: Spent 10.40s on a formula simplification. DAG size of input: 451 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:24:12,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [685731143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:12,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 06:24:12,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-09 06:24:12,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731334563] [2024-11-09 06:24:12,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:12,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 06:24:12,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:12,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 06:24:12,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 06:24:12,741 INFO L87 Difference]: Start difference. First operand 376 states and 559 transitions. Second operand has 27 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-09 06:24:22,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:22,571 INFO L93 Difference]: Finished difference Result 687 states and 1049 transitions. [2024-11-09 06:24:22,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 06:24:22,572 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 73 [2024-11-09 06:24:22,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:22,575 INFO L225 Difference]: With dead ends: 687 [2024-11-09 06:24:22,575 INFO L226 Difference]: Without dead ends: 424 [2024-11-09 06:24:22,577 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 186 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 123.5s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 06:24:22,578 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 17 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 1897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:22,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2155 Invalid, 1897 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2024-11-09 06:24:22,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2024-11-09 06:24:22,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 396. [2024-11-09 06:24:22,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 293 states have (on average 1.4675767918088738) internal successors, (430), 294 states have internal predecessors, (430), 80 states have call successors, (80), 22 states have call predecessors, (80), 22 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-09 06:24:22,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 589 transitions. [2024-11-09 06:24:22,755 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 589 transitions. Word has length 73 [2024-11-09 06:24:22,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:22,756 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 589 transitions. [2024-11-09 06:24:22,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 7 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-09 06:24:22,757 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 589 transitions. [2024-11-09 06:24:22,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 06:24:22,760 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:22,760 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, 1, 1, 1] [2024-11-09 06:24:22,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:24:22,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:24:22,965 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:24:22,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:22,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1352552472, now seen corresponding path program 1 times [2024-11-09 06:24:22,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:22,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258524367] [2024-11-09 06:24:22,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:22,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:23,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:24,226 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 06:24:24,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:24,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258524367] [2024-11-09 06:24:24,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258524367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:24,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:24,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-09 06:24:24,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32620491] [2024-11-09 06:24:24,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:24,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 06:24:24,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:24,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 06:24:24,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-09 06:24:24,229 INFO L87 Difference]: Start difference. First operand 396 states and 589 transitions. Second operand has 19 states, 13 states have (on average 2.769230769230769) internal successors, (36), 14 states have internal predecessors, (36), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 06:24:25,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:25,434 INFO L93 Difference]: Finished difference Result 417 states and 612 transitions. [2024-11-09 06:24:25,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 06:24:25,435 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 13 states have (on average 2.769230769230769) internal successors, (36), 14 states have internal predecessors, (36), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) Word has length 76 [2024-11-09 06:24:25,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:25,438 INFO L225 Difference]: With dead ends: 417 [2024-11-09 06:24:25,439 INFO L226 Difference]: Without dead ends: 414 [2024-11-09 06:24:25,440 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 06:24:25,440 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 179 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:25,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1736 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 06:24:25,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-09 06:24:25,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 413. [2024-11-09 06:24:25,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 303 states have (on average 1.448844884488449) internal successors, (439), 303 states have internal predecessors, (439), 84 states have call successors, (84), 26 states have call predecessors, (84), 25 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-09 06:24:25,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 606 transitions. [2024-11-09 06:24:25,663 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 606 transitions. Word has length 76 [2024-11-09 06:24:25,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:25,664 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 606 transitions. [2024-11-09 06:24:25,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 13 states have (on average 2.769230769230769) internal successors, (36), 14 states have internal predecessors, (36), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 6 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-09 06:24:25,664 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 606 transitions. [2024-11-09 06:24:25,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 06:24:25,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:25,670 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:24:25,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 06:24:25,671 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:24:25,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:25,671 INFO L85 PathProgramCache]: Analyzing trace with hash -499261764, now seen corresponding path program 1 times [2024-11-09 06:24:25,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:25,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461904523] [2024-11-09 06:24:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:25,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:25,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:25,944 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-09 06:24:25,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:25,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461904523] [2024-11-09 06:24:25,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461904523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:25,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:25,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:24:25,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580920257] [2024-11-09 06:24:25,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:25,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:24:25,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:25,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:24:25,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:24:25,946 INFO L87 Difference]: Start difference. First operand 413 states and 606 transitions. Second operand has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 06:24:26,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:26,311 INFO L93 Difference]: Finished difference Result 449 states and 643 transitions. [2024-11-09 06:24:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:24:26,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 109 [2024-11-09 06:24:26,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:26,315 INFO L225 Difference]: With dead ends: 449 [2024-11-09 06:24:26,315 INFO L226 Difference]: Without dead ends: 413 [2024-11-09 06:24:26,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:24:26,320 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 657 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:26,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 822 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:24:26,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-09 06:24:26,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2024-11-09 06:24:26,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 303 states have (on average 1.4455445544554455) internal successors, (438), 303 states have internal predecessors, (438), 84 states have call successors, (84), 26 states have call predecessors, (84), 25 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-09 06:24:26,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 605 transitions. [2024-11-09 06:24:26,463 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 605 transitions. Word has length 109 [2024-11-09 06:24:26,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:26,464 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 605 transitions. [2024-11-09 06:24:26,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 06:24:26,464 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 605 transitions. [2024-11-09 06:24:26,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-09 06:24:26,467 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:26,467 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:24:26,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 06:24:26,467 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:24:26,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:26,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1315598794, now seen corresponding path program 1 times [2024-11-09 06:24:26,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:26,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801625596] [2024-11-09 06:24:26,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:26,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:26,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:26,738 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-09 06:24:26,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:26,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801625596] [2024-11-09 06:24:26,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801625596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:24:26,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:24:26,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:24:26,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823697391] [2024-11-09 06:24:26,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:24:26,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:24:26,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:24:26,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:24:26,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:24:26,741 INFO L87 Difference]: Start difference. First operand 413 states and 605 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-09 06:24:27,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:24:27,310 INFO L93 Difference]: Finished difference Result 445 states and 634 transitions. [2024-11-09 06:24:27,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:24:27,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 114 [2024-11-09 06:24:27,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:24:27,315 INFO L225 Difference]: With dead ends: 445 [2024-11-09 06:24:27,315 INFO L226 Difference]: Without dead ends: 419 [2024-11-09 06:24:27,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-09 06:24:27,316 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 147 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:24:27,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 315 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 06:24:27,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-09 06:24:27,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2024-11-09 06:24:27,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 306 states have (on average 1.4379084967320261) internal successors, (440), 306 states have internal predecessors, (440), 84 states have call successors, (84), 29 states have call predecessors, (84), 28 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-09 06:24:27,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 607 transitions. [2024-11-09 06:24:27,542 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 607 transitions. Word has length 114 [2024-11-09 06:24:27,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:24:27,543 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 607 transitions. [2024-11-09 06:24:27,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-09 06:24:27,543 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 607 transitions. [2024-11-09 06:24:27,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-09 06:24:27,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:24:27,546 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:24:27,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 06:24:27,547 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:24:27,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:24:27,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1760707737, now seen corresponding path program 1 times [2024-11-09 06:24:27,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:24:27,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358097362] [2024-11-09 06:24:27,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:27,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:24:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:27,769 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 06:24:27,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:24:27,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358097362] [2024-11-09 06:24:27,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358097362] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:24:27,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54824168] [2024-11-09 06:24:27,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:24:27,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:24:27,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:24:27,773 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:24:27,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8501d9c-ba9f-477e-bd5b-d3484c37a8c9/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 06:24:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:24:28,198 INFO L255 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 06:24:28,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:24:28,242 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-09 06:24:28,244 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:24:28,443 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-09 06:24:28,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54824168] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:24:28,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1792435510] [2024-11-09 06:24:28,448 INFO L159 IcfgInterpreter]: Started Sifa with 84 locations of interest [2024-11-09 06:24:28,449 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 06:24:28,449 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 06:24:28,450 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 06:24:28,450 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 06:25:05,570 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 06:25:05,691 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 433 for LOIs [2024-11-09 06:25:06,856 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2024-11-09 06:25:10,543 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 286 for LOIs [2024-11-09 06:25:26,897 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 209 for LOIs [2024-11-09 06:25:26,956 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 299 for LOIs [2024-11-09 06:25:28,372 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 233 for LOIs [2024-11-09 06:25:28,590 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 209 for LOIs [2024-11-09 06:25:28,676 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 247 for LOIs [2024-11-09 06:25:29,386 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 342 for LOIs [2024-11-09 06:25:30,366 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 209 for LOIs [2024-11-09 06:25:30,457 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 06:25:55,574 WARN L286 SmtUtils]: Spent 7.57s on a formula simplification. DAG size of input: 433 DAG size of output: 433 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:26:07,119 WARN L286 SmtUtils]: Spent 10.99s on a formula simplification. DAG size of input: 457 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:27:26,459 WARN L286 SmtUtils]: Spent 6.82s on a formula simplification. DAG size of input: 286 DAG size of output: 274 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:27:34,032 WARN L286 SmtUtils]: Spent 6.56s on a formula simplification. DAG size of input: 294 DAG size of output: 282 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)