./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/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_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/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_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/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 cc83a32f8f5c6143265231752530a7f576faa355052cdad9509cfbce0d0adeb3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:24:56,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:24:57,001 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:24:57,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:24:57,007 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:24:57,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:24:57,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:24:57,034 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:24:57,035 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:24:57,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:24:57,036 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:24:57,037 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:24:57,037 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:24:57,037 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:24:57,038 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:24:57,038 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:24:57,039 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:24:57,039 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:24:57,040 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:24:57,040 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:24:57,041 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:24:57,048 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:24:57,049 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:24:57,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:24:57,049 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:24:57,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:24:57,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:24:57,050 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:24:57,051 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:24:57,051 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:24:57,051 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:24:57,051 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:24:57,052 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:24:57,052 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:24:57,052 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:24:57,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:24:57,053 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:24:57,053 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:24:57,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:24:57,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:24:57,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:24:57,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:24:57,055 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:24:57,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:24:57,055 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:24:57,056 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:24:57,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:24:57,056 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_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc83a32f8f5c6143265231752530a7f576faa355052cdad9509cfbce0d0adeb3 [2024-11-09 07:24:57,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:24:57,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:24:57,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:24:57,405 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:24:57,405 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:24:57,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec4_product24.cil.c Unable to find full path for "g++" [2024-11-09 07:24:59,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:25:00,230 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:25:00,233 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c [2024-11-09 07:25:00,263 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/data/a41a2a36d/6fc405267fc34ca5940ec3df28dd2bcd/FLAGa559dc94a [2024-11-09 07:25:00,759 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/data/a41a2a36d/6fc405267fc34ca5940ec3df28dd2bcd [2024-11-09 07:25:00,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:25:00,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:25:00,765 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:25:00,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:25:00,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:25:00,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:25:00" (1/1) ... [2024-11-09 07:25:00,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5961abb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:00, skipping insertion in model container [2024-11-09 07:25:00,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:25:00" (1/1) ... [2024-11-09 07:25:00,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:25:01,411 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_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c[33676,33689] [2024-11-09 07:25:01,687 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:25:01,703 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:25:01,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2024-11-09 07:25:01,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [277] [2024-11-09 07:25:01,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1357] [2024-11-09 07:25:01,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1375] [2024-11-09 07:25:01,719 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1424] [2024-11-09 07:25:01,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1433] [2024-11-09 07:25:01,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1799] [2024-11-09 07:25:01,720 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2211] [2024-11-09 07:25:01,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2503] [2024-11-09 07:25:01,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2530] [2024-11-09 07:25:01,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2629] [2024-11-09 07:25:01,772 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_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/sv-benchmarks/c/product-lines/email_spec4_product24.cil.c[33676,33689] [2024-11-09 07:25:01,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:25:01,871 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:25:01,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01 WrapperNode [2024-11-09 07:25:01,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:25:01,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:25:01,872 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:25:01,872 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:25:01,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,925 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:01,998 INFO L138 Inliner]: procedures = 130, calls = 193, calls flagged for inlining = 63, calls inlined = 58, statements flattened = 1041 [2024-11-09 07:25:01,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:25:01,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:25:02,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:25:02,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:25:02,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:02,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:02,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:02,029 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:02,070 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:02,082 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:02,090 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:02,099 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:02,107 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:25:02,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:25:02,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:25:02,110 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:25:02,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (1/1) ... [2024-11-09 07:25:02,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:25:02,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:02,193 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:25:02,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:25:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-09 07:25:02,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-09 07:25:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 07:25:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 07:25:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 07:25:02,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 07:25:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 07:25:02,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 07:25:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 07:25:02,286 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 07:25:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-09 07:25:02,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-09 07:25:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 07:25:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 07:25:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 07:25:02,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 07:25:02,289 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-09 07:25:02,291 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-09 07:25:02,291 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 07:25:02,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 07:25:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:25:02,292 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-09 07:25:02,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-09 07:25:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 07:25:02,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 07:25:02,293 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 07:25:02,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 07:25:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 07:25:02,294 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 07:25:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 07:25:02,294 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 07:25:02,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 07:25:02,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 07:25:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-09 07:25:02,295 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-09 07:25:02,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:25:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 07:25:02,296 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 07:25:02,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:25:02,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:25:02,545 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:25:02,547 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:25:03,788 INFO L? ?]: Removed 458 outVars from TransFormulas that were not future-live. [2024-11-09 07:25:03,788 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:25:04,514 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:25:04,515 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 07:25:04,515 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:25:04 BoogieIcfgContainer [2024-11-09 07:25:04,515 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:25:04,518 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:25:04,518 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:25:04,521 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:25:04,522 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:25:00" (1/3) ... [2024-11-09 07:25:04,522 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786f2469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:25:04, skipping insertion in model container [2024-11-09 07:25:04,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:25:01" (2/3) ... [2024-11-09 07:25:04,523 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@786f2469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:25:04, skipping insertion in model container [2024-11-09 07:25:04,523 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:25:04" (3/3) ... [2024-11-09 07:25:04,524 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product24.cil.c [2024-11-09 07:25:04,546 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:25:04,547 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:25:04,649 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:25:04,660 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;@6e98182e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:25:04,660 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:25:04,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 168 states, 100 states have (on average 1.34) internal successors, (134), 102 states have internal predecessors, (134), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-09 07:25:04,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 07:25:04,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:04,683 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 07:25:04,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:25:04,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:04,690 INFO L85 PathProgramCache]: Analyzing trace with hash 812692679, now seen corresponding path program 1 times [2024-11-09 07:25:04,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:04,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526053564] [2024-11-09 07:25:04,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:04,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:04,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:05,167 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:25:05,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:05,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526053564] [2024-11-09 07:25:05,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526053564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:05,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:05,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 07:25:05,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218943489] [2024-11-09 07:25:05,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:05,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 07:25:05,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:05,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 07:25:05,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:25:05,202 INFO L87 Difference]: Start difference. First operand has 168 states, 100 states have (on average 1.34) internal successors, (134), 102 states have internal predecessors, (134), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) 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 07:25:05,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:05,348 INFO L93 Difference]: Finished difference Result 253 states and 338 transitions. [2024-11-09 07:25:05,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 07:25:05,355 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 07:25:05,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:05,371 INFO L225 Difference]: With dead ends: 253 [2024-11-09 07:25:05,371 INFO L226 Difference]: Without dead ends: 165 [2024-11-09 07:25:05,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 07:25:05,384 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:05,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 194 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:25:05,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-09 07:25:05,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-11-09 07:25:05,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 99 states have internal predecessors, (128), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 07:25:05,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 223 transitions. [2024-11-09 07:25:05,473 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 223 transitions. Word has length 58 [2024-11-09 07:25:05,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:05,474 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 223 transitions. [2024-11-09 07:25:05,475 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 07:25:05,475 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 223 transitions. [2024-11-09 07:25:05,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 07:25:05,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:05,485 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 07:25:05,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:25:05,486 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:25:05,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:05,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1297810532, now seen corresponding path program 1 times [2024-11-09 07:25:05,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:05,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725574098] [2024-11-09 07:25:05,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:05,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:05,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:05,861 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:25:05,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:05,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725574098] [2024-11-09 07:25:05,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725574098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:05,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:05,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:25:05,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808929116] [2024-11-09 07:25:05,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:05,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:25:05,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:05,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:25:05,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:25:05,866 INFO L87 Difference]: Start difference. First operand 165 states and 223 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 07:25:06,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:06,058 INFO L93 Difference]: Finished difference Result 249 states and 326 transitions. [2024-11-09 07:25:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:25:06,059 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 07:25:06,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:06,062 INFO L225 Difference]: With dead ends: 249 [2024-11-09 07:25:06,063 INFO L226 Difference]: Without dead ends: 167 [2024-11-09 07:25:06,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:25:06,065 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 0 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:06,066 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 381 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:25:06,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-09 07:25:06,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-09 07:25:06,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 100 states have (on average 1.3) internal successors, (130), 101 states have internal predecessors, (130), 48 states have call successors, (48), 18 states have call predecessors, (48), 18 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 07:25:06,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 225 transitions. [2024-11-09 07:25:06,087 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 225 transitions. Word has length 59 [2024-11-09 07:25:06,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:06,088 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 225 transitions. [2024-11-09 07:25:06,088 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 07:25:06,088 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 225 transitions. [2024-11-09 07:25:06,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-09 07:25:06,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:06,091 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 07:25:06,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:25:06,092 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:25:06,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:06,092 INFO L85 PathProgramCache]: Analyzing trace with hash -321040886, now seen corresponding path program 1 times [2024-11-09 07:25:06,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:06,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778552205] [2024-11-09 07:25:06,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:06,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:06,228 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:25:06,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:06,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778552205] [2024-11-09 07:25:06,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778552205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:25:06,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:25:06,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:25:06,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035948794] [2024-11-09 07:25:06,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:25:06,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:25:06,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:25:06,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:25:06,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:25:06,231 INFO L87 Difference]: Start difference. First operand 167 states and 225 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 07:25:06,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:25:06,407 INFO L93 Difference]: Finished difference Result 364 states and 509 transitions. [2024-11-09 07:25:06,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:25:06,409 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 07:25:06,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:25:06,413 INFO L225 Difference]: With dead ends: 364 [2024-11-09 07:25:06,416 INFO L226 Difference]: Without dead ends: 215 [2024-11-09 07:25:06,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:25:06,424 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 57 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:25:06,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 379 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:25:06,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-09 07:25:06,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 210. [2024-11-09 07:25:06,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 132 states have (on average 1.3863636363636365) internal successors, (183), 133 states have internal predecessors, (183), 59 states have call successors, (59), 18 states have call predecessors, (59), 18 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-09 07:25:06,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 300 transitions. [2024-11-09 07:25:06,475 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 300 transitions. Word has length 64 [2024-11-09 07:25:06,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:25:06,476 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 300 transitions. [2024-11-09 07:25:06,476 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 07:25:06,477 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 300 transitions. [2024-11-09 07:25:06,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 07:25:06,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:25:06,484 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 07:25:06,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:25:06,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:25:06,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:25:06,486 INFO L85 PathProgramCache]: Analyzing trace with hash -65885997, now seen corresponding path program 1 times [2024-11-09 07:25:06,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:25:06,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415417757] [2024-11-09 07:25:06,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:06,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:25:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:06,767 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:25:06,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:06,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415417757] [2024-11-09 07:25:06,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415417757] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:25:06,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769645668] [2024-11-09 07:25:06,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:25:06,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:06,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:06,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:06,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:25:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:07,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:25:07,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:07,459 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:25:07,459 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:25:07,597 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:25:07,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769645668] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:25:07,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [783162831] [2024-11-09 07:25:07,633 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2024-11-09 07:25:07,633 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:25:07,638 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:25:07,647 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:25:07,650 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:25:43,015 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 07:25:43,159 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-09 07:25:43,344 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:26:45,800 WARN L286 SmtUtils]: Spent 11.04s 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 07:26:58,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [783162831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:26:58,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:26:58,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 07:26:58,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126157976] [2024-11-09 07:26:58,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:26:58,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 07:26:58,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:26:58,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 07:26:58,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-09 07:26:58,429 INFO L87 Difference]: Start difference. First operand 210 states and 300 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 07:27:10,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:10,258 INFO L93 Difference]: Finished difference Result 434 states and 636 transitions. [2024-11-09 07:27:10,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 07:27:10,259 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 07:27:10,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:10,263 INFO L225 Difference]: With dead ends: 434 [2024-11-09 07:27:10,263 INFO L226 Difference]: Without dead ends: 242 [2024-11-09 07:27:10,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 78.4s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-09 07:27:10,266 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 25 mSDsluCounter, 2293 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2466 SdHoareTripleChecker+Invalid, 1838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:10,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2466 Invalid, 1838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-09 07:27:10,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-09 07:27:10,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 233. [2024-11-09 07:27:10,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 154 states have (on average 1.4025974025974026) internal successors, (216), 155 states have internal predecessors, (216), 59 states have call successors, (59), 19 states have call predecessors, (59), 19 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-09 07:27:10,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 333 transitions. [2024-11-09 07:27:10,341 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 333 transitions. Word has length 65 [2024-11-09 07:27:10,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:10,341 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 333 transitions. [2024-11-09 07:27:10,342 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 07:27:10,342 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 333 transitions. [2024-11-09 07:27:10,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 07:27:10,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:10,345 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 07:27:10,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:27:10,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:10,546 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:27:10,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:10,547 INFO L85 PathProgramCache]: Analyzing trace with hash 372471688, now seen corresponding path program 1 times [2024-11-09 07:27:10,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:10,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262212571] [2024-11-09 07:27:10,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:10,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:10,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:27:10,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:10,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262212571] [2024-11-09 07:27:10,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262212571] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:10,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:27:10,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:27:10,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182840707] [2024-11-09 07:27:10,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:10,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:27:10,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:10,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:27:10,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:27:10,725 INFO L87 Difference]: Start difference. First operand 233 states and 333 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 07:27:10,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:10,931 INFO L93 Difference]: Finished difference Result 559 states and 830 transitions. [2024-11-09 07:27:10,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:27:10,932 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 07:27:10,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:10,935 INFO L225 Difference]: With dead ends: 559 [2024-11-09 07:27:10,935 INFO L226 Difference]: Without dead ends: 350 [2024-11-09 07:27:10,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:27:10,938 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 55 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:10,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 380 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:27:10,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2024-11-09 07:27:11,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 345. [2024-11-09 07:27:11,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 241 states have (on average 1.4605809128630705) internal successors, (352), 242 states have internal predecessors, (352), 84 states have call successors, (84), 19 states have call predecessors, (84), 19 states have return successors, (83), 83 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-09 07:27:11,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 519 transitions. [2024-11-09 07:27:11,067 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 519 transitions. Word has length 70 [2024-11-09 07:27:11,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:11,067 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 519 transitions. [2024-11-09 07:27:11,068 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 07:27:11,068 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 519 transitions. [2024-11-09 07:27:11,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-09 07:27:11,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:11,070 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 07:27:11,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:27:11,071 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:27:11,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:11,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1671376850, now seen corresponding path program 1 times [2024-11-09 07:27:11,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:11,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541038185] [2024-11-09 07:27:11,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:11,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:11,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:11,238 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:27:11,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:11,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541038185] [2024-11-09 07:27:11,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541038185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:27:11,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1557539835] [2024-11-09 07:27:11,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:11,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:11,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:27:11,242 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:27:11,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:27:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:11,612 INFO L255 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:27:11,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:27:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:27:11,649 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:27:11,741 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 07:27:11,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1557539835] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:27:11,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [306357455] [2024-11-09 07:27:11,745 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-09 07:27:11,745 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:27:11,746 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:27:11,746 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:27:11,747 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:27:47,158 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 07:27:47,300 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-09 07:27:48,508 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:28:10,476 WARN L286 SmtUtils]: Spent 6.94s on a formula simplification. DAG size of input: 431 DAG size of output: 431 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:28:20,906 WARN L286 SmtUtils]: Spent 10.11s on a formula simplification. DAG size of input: 455 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:28:59,489 WARN L286 SmtUtils]: Spent 9.70s 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 07:29:16,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [306357455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:29:16,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:29:16,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-09 07:29:16,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412483153] [2024-11-09 07:29:16,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:29:16,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 07:29:16,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:29:16,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 07:29:16,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=886, Unknown=0, NotChecked=0, Total=992 [2024-11-09 07:29:16,718 INFO L87 Difference]: Start difference. First operand 345 states and 519 transitions. Second operand has 27 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 8 states have call successors, (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 07:29:31,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:31,223 INFO L93 Difference]: Finished difference Result 700 states and 1079 transitions. [2024-11-09 07:29:31,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 07:29:31,224 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 8 states have call successors, (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 07:29:31,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:31,227 INFO L225 Difference]: With dead ends: 700 [2024-11-09 07:29:31,227 INFO L226 Difference]: Without dead ends: 418 [2024-11-09 07:29:31,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 92.7s TimeCoverageRelationStatistics Valid=114, Invalid=942, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 07:29:31,230 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 63 mSDsluCounter, 2379 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 1996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:29:31,230 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 2553 Invalid, 1996 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2024-11-09 07:29:31,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-09 07:29:31,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 359. [2024-11-09 07:29:31,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 253 states have (on average 1.458498023715415) internal successors, (369), 254 states have internal predecessors, (369), 85 states have call successors, (85), 20 states have call predecessors, (85), 20 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-09 07:29:31,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 538 transitions. [2024-11-09 07:29:31,357 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 538 transitions. Word has length 71 [2024-11-09 07:29:31,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:29:31,358 INFO L471 AbstractCegarLoop]: Abstraction has 359 states and 538 transitions. [2024-11-09 07:29:31,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 1.9444444444444444) internal successors, (35), 17 states have internal predecessors, (35), 8 states have call successors, (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 07:29:31,358 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 538 transitions. [2024-11-09 07:29:31,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-09 07:29:31,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:31,361 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 07:29:31,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 07:29:31,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 07:29:31,562 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:29:31,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:31,562 INFO L85 PathProgramCache]: Analyzing trace with hash 976958163, now seen corresponding path program 1 times [2024-11-09 07:29:31,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:29:31,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797000029] [2024-11-09 07:29:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:31,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:29:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:31,751 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:29:31,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:29:31,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797000029] [2024-11-09 07:29:31,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797000029] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:29:31,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1485418161] [2024-11-09 07:29:31,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:31,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:29:31,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:29:31,754 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:29:31,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:29:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:32,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:29:32,206 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:29:32,240 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:29:32,240 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:29:32,344 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:29:32,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1485418161] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:29:32,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [42428588] [2024-11-09 07:29:32,348 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2024-11-09 07:29:32,349 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:29:32,349 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:29:32,349 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:29:32,350 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:31:05,482 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 07:31:05,604 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 28 for LOIs [2024-11-09 07:31:05,619 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 469 for LOIs [2024-11-09 07:31:07,403 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-09 07:31:07,568 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 629 for LOIs [2024-11-09 07:31:15,449 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:32:15,838 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 07:32:26,916 WARN L286 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 459 DAG size of output: 455 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:32:35,720 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification. DAG size of input: 469 DAG size of output: 465 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:32:47,482 WARN L286 SmtUtils]: Spent 10.91s on a formula simplification. DAG size of input: 539 DAG size of output: 500 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:33:15,283 WARN L286 SmtUtils]: Spent 27.12s on a formula simplification. DAG size of input: 565 DAG size of output: 525 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:33:44,309 WARN L286 SmtUtils]: Spent 28.01s on a formula simplification. DAG size of input: 570 DAG size of output: 526 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:34:27,443 WARN L286 SmtUtils]: Spent 42.04s on a formula simplification. DAG size of input: 629 DAG size of output: 581 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:35:17,102 WARN L286 SmtUtils]: Spent 48.64s on a formula simplification. DAG size of input: 647 DAG size of output: 581 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:35:24,492 WARN L286 SmtUtils]: Spent 5.71s 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 07:35:24,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [42428588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:35:24,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:35:24,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 37 [2024-11-09 07:35:24,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492069866] [2024-11-09 07:35:24,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:35:24,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-09 07:35:24,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:35:24,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-09 07:35:24,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1219, Unknown=0, NotChecked=0, Total=1332 [2024-11-09 07:35:24,502 INFO L87 Difference]: Start difference. First operand 359 states and 538 transitions. Second operand has 32 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (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 07:35:32,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:35:34,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:35:36,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:35:38,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:35:44,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:35:50,601 WARN L286 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 509 DAG size of output: 469 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:35:52,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:35:55,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:35:58,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:36:02,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:36:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:36:12,261 INFO L93 Difference]: Finished difference Result 740 states and 1141 transitions. [2024-11-09 07:36:12,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 07:36:12,262 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (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 07:36:12,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:36:12,265 INFO L225 Difference]: With dead ends: 740 [2024-11-09 07:36:12,265 INFO L226 Difference]: Without dead ends: 458 [2024-11-09 07:36:12,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 258.1s TimeCoverageRelationStatistics Valid=124, Invalid=1358, Unknown=0, NotChecked=0, Total=1482 [2024-11-09 07:36:12,268 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 81 mSDsluCounter, 2504 mSDsCounter, 0 mSdLazyCounter, 2818 mSolverCounterSat, 17 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 2681 SdHoareTripleChecker+Invalid, 2844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2818 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:36:12,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 2681 Invalid, 2844 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 2818 Invalid, 9 Unknown, 0 Unchecked, 38.3s Time] [2024-11-09 07:36:12,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2024-11-09 07:36:12,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 388. [2024-11-09 07:36:12,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 280 states have (on average 1.457142857142857) internal successors, (408), 282 states have internal predecessors, (408), 84 states have call successors, (84), 23 states have call predecessors, (84), 23 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-09 07:36:12,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 575 transitions. [2024-11-09 07:36:12,402 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 575 transitions. Word has length 74 [2024-11-09 07:36:12,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:36:12,403 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 575 transitions. [2024-11-09 07:36:12,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 18 states have internal predecessors, (35), 10 states have call successors, (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 07:36:12,403 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 575 transitions. [2024-11-09 07:36:12,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 07:36:12,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:36:12,405 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 07:36:12,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 07:36:12,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:36:12,607 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:36:12,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:36:12,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1071656461, now seen corresponding path program 1 times [2024-11-09 07:36:12,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:36:12,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309682589] [2024-11-09 07:36:12,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:36:12,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:36:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:36:12,806 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:36:12,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:36:12,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309682589] [2024-11-09 07:36:12,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309682589] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:36:12,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254983831] [2024-11-09 07:36:12,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:36:12,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:36:12,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:36:12,809 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:36:12,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:36:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:36:13,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:36:13,143 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:36:13,180 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:36:13,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:36:13,274 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-09 07:36:13,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254983831] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:36:13,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1753855809] [2024-11-09 07:36:13,281 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-09 07:36:13,281 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:36:13,281 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:36:13,281 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:36:13,282 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:36:58,458 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-09 07:36:58,590 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-09 07:36:58,770 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:38:02,245 WARN L286 SmtUtils]: Spent 11.17s 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 07:38:32,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1753855809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:38:32,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:38:32,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2024-11-09 07:38:32,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99232258] [2024-11-09 07:38:32,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:38:32,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 07:38:32,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:38:32,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 07:38:32,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=948, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 07:38:32,496 INFO L87 Difference]: Start difference. First operand 388 states and 575 transitions. Second operand has 28 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 7 states have call successors, (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 07:39:04,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:39:04,701 INFO L93 Difference]: Finished difference Result 764 states and 1154 transitions. [2024-11-09 07:39:04,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 07:39:04,702 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 7 states have call successors, (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 07:39:04,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:39:04,706 INFO L225 Difference]: With dead ends: 764 [2024-11-09 07:39:04,706 INFO L226 Difference]: Without dead ends: 436 [2024-11-09 07:39:04,708 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 116.3s TimeCoverageRelationStatistics Valid=140, Invalid=1266, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 07:39:04,709 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 24 mSDsluCounter, 2332 mSDsCounter, 0 mSdLazyCounter, 1997 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:39:04,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2500 Invalid, 2008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 1997 Invalid, 0 Unknown, 0 Unchecked, 9.3s Time] [2024-11-09 07:39:04,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-09 07:39:04,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 408. [2024-11-09 07:39:04,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 300 states have (on average 1.46) internal successors, (438), 302 states have internal predecessors, (438), 84 states have call successors, (84), 23 states have call predecessors, (84), 23 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-09 07:39:04,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 605 transitions. [2024-11-09 07:39:04,904 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 605 transitions. Word has length 73 [2024-11-09 07:39:04,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:39:04,904 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 605 transitions. [2024-11-09 07:39:04,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 20 states have (on average 2.0) internal successors, (40), 19 states have internal predecessors, (40), 7 states have call successors, (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 07:39:04,905 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 605 transitions. [2024-11-09 07:39:04,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-09 07:39:04,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:39:04,907 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 07:39:04,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 07:39:05,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 07:39:05,107 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:39:05,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:39:05,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1251095025, now seen corresponding path program 1 times [2024-11-09 07:39:05,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:39:05,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992602102] [2024-11-09 07:39:05,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:39:05,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:39:05,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:39:06,584 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-09 07:39:06,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:39:06,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992602102] [2024-11-09 07:39:06,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992602102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:39:06,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:39:06,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-09 07:39:06,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179986251] [2024-11-09 07:39:06,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:39:06,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 07:39:06,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:39:06,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 07:39:06,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2024-11-09 07:39:06,587 INFO L87 Difference]: Start difference. First operand 408 states and 605 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 07:39:08,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:39:08,042 INFO L93 Difference]: Finished difference Result 429 states and 628 transitions. [2024-11-09 07:39:08,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 07:39:08,043 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 07:39:08,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:39:08,046 INFO L225 Difference]: With dead ends: 429 [2024-11-09 07:39:08,047 INFO L226 Difference]: Without dead ends: 426 [2024-11-09 07:39:08,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2024-11-09 07:39:08,048 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 179 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 1807 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:39:08,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 1807 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1113 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-09 07:39:08,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-09 07:39:08,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 425. [2024-11-09 07:39:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 310 states have (on average 1.4419354838709677) internal successors, (447), 311 states have internal predecessors, (447), 88 states have call successors, (88), 27 states have call predecessors, (88), 26 states have return successors, (87), 86 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-09 07:39:08,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 622 transitions. [2024-11-09 07:39:08,281 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 622 transitions. Word has length 76 [2024-11-09 07:39:08,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:39:08,284 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 622 transitions. [2024-11-09 07:39:08,285 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 07:39:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 622 transitions. [2024-11-09 07:39:08,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-09 07:39:08,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:39:08,288 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:39:08,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 07:39:08,288 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:39:08,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:39:08,288 INFO L85 PathProgramCache]: Analyzing trace with hash 650232135, now seen corresponding path program 1 times [2024-11-09 07:39:08,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:39:08,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880372712] [2024-11-09 07:39:08,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:39:08,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:39:08,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:39:08,588 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 13 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-09 07:39:08,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:39:08,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880372712] [2024-11-09 07:39:08,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880372712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:39:08,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847439840] [2024-11-09 07:39:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:39:08,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:39:08,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:39:08,592 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:39:08,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69dcf86c-ecf8-4e8d-9871-3b40c043aa2c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:39:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:39:09,071 INFO L255 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:39:09,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:39:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-09 07:39:09,130 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:39:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-09 07:39:09,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847439840] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:39:09,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [662931272] [2024-11-09 07:39:09,316 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2024-11-09 07:39:09,316 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:39:09,317 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:39:09,317 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:39:09,317 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs