./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E --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 be72096c105f582e8528565b95ebbdcff5f4be75e7838295d3ddf5b4552aba69 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:49:35,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:49:35,144 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:49:35,153 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:49:35,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:49:35,184 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:49:35,186 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:49:35,187 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:49:35,187 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:49:35,187 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:49:35,188 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:49:35,188 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:49:35,188 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:49:35,189 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:49:35,189 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:49:35,189 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:49:35,189 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:49:35,190 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:49:35,190 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:49:35,190 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:49:35,190 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:49:35,190 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:49:35,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:49:35,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:49:35,191 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:49:35,191 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:49:35,191 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:49:35,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:49:35,192 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:49:35,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:49:35,192 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:49:35,192 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:49:35,192 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:49:35,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:49:35,192 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:49:35,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:49:35,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:49:35,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:49:35,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:49:35,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:49:35,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:49:35,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:49:35,193 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:49:35,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:49:35,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:49:35,193 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:49:35,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:49:35,193 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E 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 -> be72096c105f582e8528565b95ebbdcff5f4be75e7838295d3ddf5b4552aba69 [2024-11-13 23:49:35,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:49:35,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:49:35,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:49:35,551 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:49:35,551 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:49:35,553 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec0_product25.cil.c Unable to find full path for "g++" [2024-11-13 23:49:37,494 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:49:37,861 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:49:37,865 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/sv-benchmarks/c/product-lines/email_spec0_product25.cil.c [2024-11-13 23:49:37,893 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/data/34098391c/9127b8e885fd48e49ccd987029a8a2ab/FLAG65e386fc4 [2024-11-13 23:49:37,915 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/data/34098391c/9127b8e885fd48e49ccd987029a8a2ab [2024-11-13 23:49:37,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:49:37,919 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:49:37,923 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:49:37,923 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:49:37,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:49:37,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:49:37" (1/1) ... [2024-11-13 23:49:37,932 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310877b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:37, skipping insertion in model container [2024-11-13 23:49:37,932 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:49:37" (1/1) ... [2024-11-13 23:49:38,002 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:49:38,496 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_b4cb4878-859a-4b44-ab98-69be475facc3/sv-benchmarks/c/product-lines/email_spec0_product25.cil.c[43418,43431] [2024-11-13 23:49:38,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:49:38,662 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:49:38,673 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [48] [2024-11-13 23:49:38,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [416] [2024-11-13 23:49:38,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1488] [2024-11-13 23:49:38,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1790] [2024-11-13 23:49:38,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1810] [2024-11-13 23:49:38,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2029] [2024-11-13 23:49:38,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2038] [2024-11-13 23:49:38,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2136] [2024-11-13 23:49:38,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2502] [2024-11-13 23:49:38,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2537] [2024-11-13 23:49:38,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2938] [2024-11-13 23:49:38,804 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_b4cb4878-859a-4b44-ab98-69be475facc3/sv-benchmarks/c/product-lines/email_spec0_product25.cil.c[43418,43431] [2024-11-13 23:49:38,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:49:38,903 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:49:38,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38 WrapperNode [2024-11-13 23:49:38,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:49:38,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:49:38,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:49:38,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:49:38,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38" (1/1) ... [2024-11-13 23:49:38,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38" (1/1) ... [2024-11-13 23:49:38,990 INFO L138 Inliner]: procedures = 130, calls = 199, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1078 [2024-11-13 23:49:38,990 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:49:38,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:49:38,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:49:38,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:49:39,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38" (1/1) ... [2024-11-13 23:49:39,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38" (1/1) ... [2024-11-13 23:49:39,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38" (1/1) ... [2024-11-13 23:49:39,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38" (1/1) ... [2024-11-13 23:49:39,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38" (1/1) ... [2024-11-13 23:49:39,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38" (1/1) ... [2024-11-13 23:49:39,074 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38" (1/1) ... [2024-11-13 23:49:39,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38" (1/1) ... [2024-11-13 23:49:39,096 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:49:39,097 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:49:39,097 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:49:39,097 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:49:39,098 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38" (1/1) ... [2024-11-13 23:49:39,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:49:39,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:49:39,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:49:39,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:49:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-13 23:49:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-13 23:49:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-13 23:49:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-13 23:49:39,208 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2024-11-13 23:49:39,208 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2024-11-13 23:49:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-13 23:49:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-13 23:49:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-13 23:49:39,209 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-13 23:49:39,209 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-13 23:49:39,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-13 23:49:39,210 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-13 23:49:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-13 23:49:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-13 23:49:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-13 23:49:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-13 23:49:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-13 23:49:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-13 23:49:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-13 23:49:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-13 23:49:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-13 23:49:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:49:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-13 23:49:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-13 23:49:39,211 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-13 23:49:39,211 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-13 23:49:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-13 23:49:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-13 23:49:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-13 23:49:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-13 23:49:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-13 23:49:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-13 23:49:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-13 23:49:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-13 23:49:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-13 23:49:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-13 23:49:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-13 23:49:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-13 23:49:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:49:39,212 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-13 23:49:39,212 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-13 23:49:39,213 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-13 23:49:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-13 23:49:39,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:49:39,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:49:39,445 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:49:39,447 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:49:40,651 INFO L? ?]: Removed 540 outVars from TransFormulas that were not future-live. [2024-11-13 23:49:40,651 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:49:41,560 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:49:41,560 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:49:41,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:49:41 BoogieIcfgContainer [2024-11-13 23:49:41,560 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:49:41,562 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:49:41,562 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:49:41,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:49:41,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:49:37" (1/3) ... [2024-11-13 23:49:41,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3eff10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:49:41, skipping insertion in model container [2024-11-13 23:49:41,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:49:38" (2/3) ... [2024-11-13 23:49:41,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a3eff10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:49:41, skipping insertion in model container [2024-11-13 23:49:41,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:49:41" (3/3) ... [2024-11-13 23:49:41,569 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product25.cil.c [2024-11-13 23:49:41,585 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:49:41,587 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec0_product25.cil.c that has 22 procedures, 180 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:49:41,662 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:49:41,680 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;@74bcf56f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:49:41,680 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:49:41,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 106 states have internal predecessors, (136), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-13 23:49:41,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 23:49:41,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:49:41,701 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:49:41,702 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:49:41,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:49:41,708 INFO L85 PathProgramCache]: Analyzing trace with hash 807478527, now seen corresponding path program 1 times [2024-11-13 23:49:41,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:49:41,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747762952] [2024-11-13 23:49:41,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:49:41,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:49:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:49:42,166 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:49:42,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:49:42,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747762952] [2024-11-13 23:49:42,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747762952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:49:42,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:49:42,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:49:42,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331153563] [2024-11-13 23:49:42,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:49:42,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:49:42,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:49:42,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:49:42,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:49:42,197 INFO L87 Difference]: Start difference. First operand has 180 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 106 states have internal predecessors, (136), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 23:49:42,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:49:42,355 INFO L93 Difference]: Finished difference Result 268 states and 359 transitions. [2024-11-13 23:49:42,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:49:42,360 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2024-11-13 23:49:42,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:49:42,373 INFO L225 Difference]: With dead ends: 268 [2024-11-13 23:49:42,373 INFO L226 Difference]: Without dead ends: 177 [2024-11-13 23:49:42,380 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 [2024-11-13 23:49:42,385 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:49:42,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 204 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:49:42,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-13 23:49:42,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-13 23:49:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 101 states have (on average 1.2871287128712872) internal successors, (130), 103 states have internal predecessors, (130), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-13 23:49:42,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 237 transitions. [2024-11-13 23:49:42,460 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 237 transitions. Word has length 71 [2024-11-13 23:49:42,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:49:42,462 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 237 transitions. [2024-11-13 23:49:42,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 23:49:42,462 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 237 transitions. [2024-11-13 23:49:42,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-13 23:49:42,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:49:42,469 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] [2024-11-13 23:49:42,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:49:42,469 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:49:42,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:49:42,470 INFO L85 PathProgramCache]: Analyzing trace with hash 445312269, now seen corresponding path program 1 times [2024-11-13 23:49:42,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:49:42,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098171828] [2024-11-13 23:49:42,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:49:42,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:49:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:49:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:49:42,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:49:42,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098171828] [2024-11-13 23:49:42,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098171828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:49:42,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:49:42,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:49:42,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919838464] [2024-11-13 23:49:42,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:49:42,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:49:42,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:49:42,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:49:42,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:49:42,850 INFO L87 Difference]: Start difference. First operand 177 states and 237 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 23:49:42,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:49:42,998 INFO L93 Difference]: Finished difference Result 264 states and 344 transitions. [2024-11-13 23:49:42,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:49:42,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2024-11-13 23:49:42,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:49:43,001 INFO L225 Difference]: With dead ends: 264 [2024-11-13 23:49:43,001 INFO L226 Difference]: Without dead ends: 179 [2024-11-13 23:49:43,002 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 [2024-11-13 23:49:43,003 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 0 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:49:43,003 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 401 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:49:43,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-13 23:49:43,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-13 23:49:43,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 103 states have (on average 1.2815533980582525) internal successors, (132), 105 states have internal predecessors, (132), 54 states have call successors, (54), 21 states have call predecessors, (54), 21 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-13 23:49:43,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 239 transitions. [2024-11-13 23:49:43,032 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 239 transitions. Word has length 72 [2024-11-13 23:49:43,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:49:43,033 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 239 transitions. [2024-11-13 23:49:43,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 23:49:43,033 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 239 transitions. [2024-11-13 23:49:43,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-13 23:49:43,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:49:43,036 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:49:43,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:49:43,036 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:49:43,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:49:43,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1960680369, now seen corresponding path program 1 times [2024-11-13 23:49:43,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:49:43,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683618299] [2024-11-13 23:49:43,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:49:43,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:49:43,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:49:43,254 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:49:43,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:49:43,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683618299] [2024-11-13 23:49:43,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683618299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:49:43,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:49:43,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:49:43,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934808838] [2024-11-13 23:49:43,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:49:43,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:49:43,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:49:43,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:49:43,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:49:43,258 INFO L87 Difference]: Start difference. First operand 179 states and 239 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 23:49:43,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:49:43,437 INFO L93 Difference]: Finished difference Result 393 states and 545 transitions. [2024-11-13 23:49:43,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:49:43,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2024-11-13 23:49:43,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:49:43,441 INFO L225 Difference]: With dead ends: 393 [2024-11-13 23:49:43,441 INFO L226 Difference]: Without dead ends: 232 [2024-11-13 23:49:43,445 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 [2024-11-13 23:49:43,446 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 59 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:49:43,446 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 413 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 23:49:43,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2024-11-13 23:49:43,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 227. [2024-11-13 23:49:43,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 137 states have (on average 1.364963503649635) internal successors, (187), 139 states have internal predecessors, (187), 68 states have call successors, (68), 21 states have call predecessors, (68), 21 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-13 23:49:43,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 322 transitions. [2024-11-13 23:49:43,480 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 322 transitions. Word has length 77 [2024-11-13 23:49:43,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:49:43,480 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 322 transitions. [2024-11-13 23:49:43,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-13 23:49:43,484 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 322 transitions. [2024-11-13 23:49:43,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-13 23:49:43,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:49:43,487 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:49:43,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 23:49:43,488 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:49:43,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:49:43,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1976360820, now seen corresponding path program 1 times [2024-11-13 23:49:43,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:49:43,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504782946] [2024-11-13 23:49:43,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:49:43,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:49:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:49:43,784 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:49:43,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:49:43,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504782946] [2024-11-13 23:49:43,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504782946] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:49:43,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946218439] [2024-11-13 23:49:43,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:49:43,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:49:43,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:49:43,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:49:43,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:49:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:49:44,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 911 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:49:44,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:49:44,386 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:49:44,386 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:49:44,533 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:49:44,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946218439] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:49:44,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [210557857] [2024-11-13 23:49:44,560 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-13 23:49:44,560 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:49:44,564 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:49:44,569 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:49:44,569 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:50:11,386 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-13 23:50:11,578 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-13 23:50:11,789 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:51:07,551 WARN L286 SmtUtils]: Spent 9.72s on a formula simplification. DAG size of input: 450 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:51:18,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [210557857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:51:18,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:51:18,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-13 23:51:18,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622897224] [2024-11-13 23:51:18,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:51:18,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 23:51:18,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:51:18,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 23:51:18,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-13 23:51:18,718 INFO L87 Difference]: Start difference. First operand 227 states and 322 transitions. Second operand has 23 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-13 23:51:29,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:51:29,180 INFO L93 Difference]: Finished difference Result 469 states and 682 transitions. [2024-11-13 23:51:29,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 23:51:29,180 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 78 [2024-11-13 23:51:29,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:51:29,183 INFO L225 Difference]: With dead ends: 469 [2024-11-13 23:51:29,183 INFO L226 Difference]: Without dead ends: 260 [2024-11-13 23:51:29,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 70.0s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-13 23:51:29,185 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 26 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2479 SdHoareTripleChecker+Invalid, 1826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:51:29,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2479 Invalid, 1826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2024-11-13 23:51:29,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-13 23:51:29,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 250. [2024-11-13 23:51:29,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 159 states have (on average 1.3836477987421383) internal successors, (220), 161 states have internal predecessors, (220), 68 states have call successors, (68), 22 states have call predecessors, (68), 22 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2024-11-13 23:51:29,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 355 transitions. [2024-11-13 23:51:29,252 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 355 transitions. Word has length 78 [2024-11-13 23:51:29,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:51:29,252 INFO L471 AbstractCegarLoop]: Abstraction has 250 states and 355 transitions. [2024-11-13 23:51:29,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-13 23:51:29,253 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 355 transitions. [2024-11-13 23:51:29,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-13 23:51:29,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:51:29,255 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:51:29,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 23:51:29,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:51:29,456 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:51:29,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:51:29,457 INFO L85 PathProgramCache]: Analyzing trace with hash -198454538, now seen corresponding path program 1 times [2024-11-13 23:51:29,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:51:29,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001814317] [2024-11-13 23:51:29,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:51:29,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:51:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:51:29,615 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:51:29,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:51:29,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001814317] [2024-11-13 23:51:29,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001814317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:51:29,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:51:29,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:51:29,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616558612] [2024-11-13 23:51:29,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:51:29,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:51:29,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:51:29,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:51:29,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:51:29,618 INFO L87 Difference]: Start difference. First operand 250 states and 355 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-13 23:51:29,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:51:29,826 INFO L93 Difference]: Finished difference Result 603 states and 890 transitions. [2024-11-13 23:51:29,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:51:29,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2024-11-13 23:51:29,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:51:29,829 INFO L225 Difference]: With dead ends: 603 [2024-11-13 23:51:29,833 INFO L226 Difference]: Without dead ends: 377 [2024-11-13 23:51:29,834 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 [2024-11-13 23:51:29,834 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 57 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:51:29,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 410 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:51:29,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-13 23:51:29,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 372. [2024-11-13 23:51:29,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 250 states have (on average 1.44) internal successors, (360), 252 states have internal predecessors, (360), 99 states have call successors, (99), 22 states have call predecessors, (99), 22 states have return successors, (98), 97 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-13 23:51:29,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 557 transitions. [2024-11-13 23:51:29,960 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 557 transitions. Word has length 83 [2024-11-13 23:51:29,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:51:29,960 INFO L471 AbstractCegarLoop]: Abstraction has 372 states and 557 transitions. [2024-11-13 23:51:29,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-13 23:51:29,960 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 557 transitions. [2024-11-13 23:51:29,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-13 23:51:29,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:51:29,963 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:51:29,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 23:51:29,963 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:51:29,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:51:29,969 INFO L85 PathProgramCache]: Analyzing trace with hash -1114350602, now seen corresponding path program 1 times [2024-11-13 23:51:29,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:51:29,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067361534] [2024-11-13 23:51:29,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:51:29,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:51:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:51:30,156 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:51:30,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:51:30,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067361534] [2024-11-13 23:51:30,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067361534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:51:30,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485075651] [2024-11-13 23:51:30,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:51:30,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:51:30,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:51:30,159 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:51:30,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 23:51:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:51:30,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 935 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:51:30,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:51:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:51:30,552 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:51:30,647 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-13 23:51:30,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485075651] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:51:30,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1041385139] [2024-11-13 23:51:30,650 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-13 23:51:30,651 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:51:30,651 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:51:30,651 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:51:30,651 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:52:04,055 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-13 23:52:04,218 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-13 23:52:05,226 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:52:26,973 WARN L286 SmtUtils]: Spent 6.71s on a formula simplification. DAG size of input: 431 DAG size of output: 432 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:52:36,954 WARN L286 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 455 DAG size of output: 451 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:53:17,399 WARN L286 SmtUtils]: Spent 10.49s on a formula simplification. DAG size of input: 452 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:53:41,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1041385139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:53:41,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:53:41,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-13 23:53:41,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804955515] [2024-11-13 23:53:41,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:53:41,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 23:53:41,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:53:41,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 23:53:41,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-13 23:53:41,311 INFO L87 Difference]: Start difference. First operand 372 states and 557 transitions. Second operand has 26 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-13 23:53:51,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:53:51,339 INFO L93 Difference]: Finished difference Result 754 states and 1157 transitions. [2024-11-13 23:53:51,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-13 23:53:51,340 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2024-11-13 23:53:51,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:53:51,344 INFO L225 Difference]: With dead ends: 754 [2024-11-13 23:53:51,345 INFO L226 Difference]: Without dead ends: 445 [2024-11-13 23:53:51,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 96.1s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-13 23:53:51,347 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 64 mSDsluCounter, 2367 mSDsCounter, 0 mSdLazyCounter, 2135 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 2548 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:53:51,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 2548 Invalid, 2143 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2135 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2024-11-13 23:53:51,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-13 23:53:51,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 386. [2024-11-13 23:53:51,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 262 states have (on average 1.4389312977099236) internal successors, (377), 264 states have internal predecessors, (377), 100 states have call successors, (100), 23 states have call predecessors, (100), 23 states have return successors, (99), 98 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-13 23:53:51,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 576 transitions. [2024-11-13 23:53:51,495 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 576 transitions. Word has length 84 [2024-11-13 23:53:51,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:53:51,495 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 576 transitions. [2024-11-13 23:53:51,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-13 23:53:51,496 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 576 transitions. [2024-11-13 23:53:51,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-13 23:53:51,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:53:51,498 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:53:51,520 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 23:53:51,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:53:51,699 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:53:51,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:53:51,701 INFO L85 PathProgramCache]: Analyzing trace with hash 107750746, now seen corresponding path program 1 times [2024-11-13 23:53:51,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:53:51,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066540346] [2024-11-13 23:53:51,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:53:51,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:53:51,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:53:51,921 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:53:51,921 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:53:51,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066540346] [2024-11-13 23:53:51,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066540346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:53:51,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917937259] [2024-11-13 23:53:51,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:53:51,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:53:51,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:53:51,929 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:53:51,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 23:53:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:53:52,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:53:52,348 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:53:52,378 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:53:52,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:53:52,482 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:53:52,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917937259] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:53:52,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2049277600] [2024-11-13 23:53:52,490 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2024-11-13 23:53:52,490 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:53:52,490 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:53:52,490 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:53:52,490 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:54:51,497 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-13 23:54:51,623 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 477 for LOIs [2024-11-13 23:54:52,547 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 486 for LOIs [2024-11-13 23:54:53,557 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 422 for LOIs [2024-11-13 23:54:53,973 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-13 23:54:54,117 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:56:03,110 WARN L286 SmtUtils]: Spent 13.53s on a formula simplification. DAG size of input: 510 DAG size of output: 505 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:56:24,438 WARN L286 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 491 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:56:30,186 WARN L286 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 496 DAG size of output: 492 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:56:35,797 WARN L286 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 486 DAG size of output: 482 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:56:41,440 WARN L286 SmtUtils]: Spent 5.09s on a formula simplification. DAG size of input: 486 DAG size of output: 482 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:57:03,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2049277600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:57:03,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:57:03,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-13 23:57:03,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304071889] [2024-11-13 23:57:03,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:57:03,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-13 23:57:03,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:57:03,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-13 23:57:03,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1291, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 23:57:03,008 INFO L87 Difference]: Start difference. First operand 386 states and 576 transitions. Second operand has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-13 23:57:33,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:57:33,377 INFO L93 Difference]: Finished difference Result 779 states and 1192 transitions. [2024-11-13 23:57:33,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-13 23:57:33,378 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 87 [2024-11-13 23:57:33,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:57:33,383 INFO L225 Difference]: With dead ends: 779 [2024-11-13 23:57:33,383 INFO L226 Difference]: Without dead ends: 470 [2024-11-13 23:57:33,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 137.9s TimeCoverageRelationStatistics Valid=126, Invalid=1434, Unknown=0, NotChecked=0, Total=1560 [2024-11-13 23:57:33,389 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 28 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 3464 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 3475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2024-11-13 23:57:33,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 3294 Invalid, 3475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 3464 Invalid, 0 Unknown, 0 Unchecked, 20.9s Time] [2024-11-13 23:57:33,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-13 23:57:33,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 422. [2024-11-13 23:57:33,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 292 states have (on average 1.4349315068493151) internal successors, (419), 294 states have internal predecessors, (419), 103 states have call successors, (103), 26 states have call predecessors, (103), 26 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-13 23:57:33,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 624 transitions. [2024-11-13 23:57:33,548 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 624 transitions. Word has length 87 [2024-11-13 23:57:33,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:57:33,549 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 624 transitions. [2024-11-13 23:57:33,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-13 23:57:33,549 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 624 transitions. [2024-11-13 23:57:33,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 23:57:33,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:57:33,553 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:57:33,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 23:57:33,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 23:57:33,757 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:57:33,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:57:33,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1639583690, now seen corresponding path program 1 times [2024-11-13 23:57:33,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:57:33,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284163738] [2024-11-13 23:57:33,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:57:33,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:57:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:57:33,936 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:57:33,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:57:33,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284163738] [2024-11-13 23:57:33,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284163738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:57:33,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249526861] [2024-11-13 23:57:33,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:57:33,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:57:33,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:57:33,940 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:57:33,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 23:57:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:57:34,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:57:34,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:57:34,461 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:57:34,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:57:34,576 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:57:34,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249526861] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:57:34,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [284907365] [2024-11-13 23:57:34,580 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2024-11-13 23:57:34,580 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:57:34,580 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:57:34,581 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:57:34,581 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:58:17,532 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-13 23:58:17,701 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-13 23:58:17,903 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:59:21,320 WARN L286 SmtUtils]: Spent 10.60s on a formula simplification. DAG size of input: 451 DAG size of output: 451 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:59:52,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [284907365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:59:52,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:59:52,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-13 23:59:52,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021705468] [2024-11-13 23:59:52,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:59:52,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 23:59:52,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:59:52,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 23:59:52,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-13 23:59:52,983 INFO L87 Difference]: Start difference. First operand 422 states and 624 transitions. Second operand has 27 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 00:00:09,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:00:09,229 INFO L93 Difference]: Finished difference Result 780 states and 1181 transitions. [2024-11-14 00:00:09,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 00:00:09,230 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 86 [2024-11-14 00:00:09,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:00:09,239 INFO L225 Difference]: With dead ends: 780 [2024-11-14 00:00:09,243 INFO L226 Difference]: Without dead ends: 471 [2024-11-14 00:00:09,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 98.6s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 00:00:09,248 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 18 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 2518 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2844 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-14 00:00:09,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2844 Invalid, 2527 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2518 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2024-11-14 00:00:09,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2024-11-14 00:00:09,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 442. [2024-11-14 00:00:09,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 312 states have (on average 1.439102564102564) internal successors, (449), 314 states have internal predecessors, (449), 103 states have call successors, (103), 26 states have call predecessors, (103), 26 states have return successors, (102), 101 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-14 00:00:09,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 654 transitions. [2024-11-14 00:00:09,429 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 654 transitions. Word has length 86 [2024-11-14 00:00:09,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:00:09,429 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 654 transitions. [2024-11-14 00:00:09,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 00:00:09,429 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 654 transitions. [2024-11-14 00:00:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-14 00:00:09,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:00:09,432 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2024-11-14 00:00:09,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 00:00:09,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 00:00:09,632 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:00:09,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:00:09,633 INFO L85 PathProgramCache]: Analyzing trace with hash -526988777, now seen corresponding path program 1 times [2024-11-14 00:00:09,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 00:00:09,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536982283] [2024-11-14 00:00:09,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:00:09,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 00:00:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:00:09,849 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-14 00:00:09,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 00:00:09,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536982283] [2024-11-14 00:00:09,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536982283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 00:00:09,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353776615] [2024-11-14 00:00:09,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:00:09,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 00:00:09,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 00:00:09,853 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 00:00:09,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 00:00:10,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:00:10,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 00:00:10,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:00:10,331 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 00:00:10,331 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 00:00:10,451 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 00:00:10,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353776615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 00:00:10,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1478952206] [2024-11-14 00:00:10,454 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-14 00:00:10,454 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 00:00:10,455 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 00:00:10,455 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 00:00:10,455 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 00:00:50,674 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 00:00:50,783 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-14 00:00:51,955 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 247 for LOIs [2024-11-14 00:00:54,571 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 245 for LOIs [2024-11-14 00:00:56,438 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 228 for LOIs [2024-11-14 00:00:56,545 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Keys with input of size 255 for LOIs [2024-11-14 00:01:01,382 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 250 for LOIs [2024-11-14 00:01:01,501 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 250 for LOIs [2024-11-14 00:01:01,638 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 240 for LOIs [2024-11-14 00:01:01,744 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 223 for LOIs [2024-11-14 00:01:01,848 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 00:01:27,073 WARN L286 SmtUtils]: Spent 7.67s on a formula simplification. DAG size of input: 431 DAG size of output: 432 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 00:01:39,114 WARN L286 SmtUtils]: Spent 11.47s 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) [2024-11-14 00:03:15,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1478952206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 00:03:15,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 00:03:15,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [6, 5, 5] total 63 [2024-11-14 00:03:15,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304992873] [2024-11-14 00:03:15,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 00:03:15,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-11-14 00:03:15,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 00:03:15,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-11-14 00:03:15,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=3729, Unknown=0, NotChecked=0, Total=3906 [2024-11-14 00:03:15,298 INFO L87 Difference]: Start difference. First operand 442 states and 654 transitions. Second operand has 55 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 31 states have internal predecessors, (43), 16 states have call successors, (18), 10 states have call predecessors, (18), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-14 00:03:44,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 00:03:44,864 INFO L93 Difference]: Finished difference Result 912 states and 1378 transitions. [2024-11-14 00:03:44,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-14 00:03:44,865 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 31 states have internal predecessors, (43), 16 states have call successors, (18), 10 states have call predecessors, (18), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) Word has length 89 [2024-11-14 00:03:44,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 00:03:44,869 INFO L225 Difference]: With dead ends: 912 [2024-11-14 00:03:44,870 INFO L226 Difference]: Without dead ends: 563 [2024-11-14 00:03:44,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 208 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 754 ImplicationChecksByTransitivity, 136.5s TimeCoverageRelationStatistics Valid=189, Invalid=3971, Unknown=0, NotChecked=0, Total=4160 [2024-11-14 00:03:44,873 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 77 mSDsluCounter, 4329 mSDsCounter, 0 mSdLazyCounter, 7303 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 4524 SdHoareTripleChecker+Invalid, 7322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 7303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.9s IncrementalHoareTripleChecker+Time [2024-11-14 00:03:44,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 4524 Invalid, 7322 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [19 Valid, 7303 Invalid, 0 Unknown, 0 Unchecked, 25.9s Time] [2024-11-14 00:03:44,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2024-11-14 00:03:45,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 483. [2024-11-14 00:03:45,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 336 states have (on average 1.4107142857142858) internal successors, (474), 338 states have internal predecessors, (474), 113 states have call successors, (113), 36 states have call predecessors, (113), 33 states have return successors, (112), 108 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 00:03:45,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 699 transitions. [2024-11-14 00:03:45,083 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 699 transitions. Word has length 89 [2024-11-14 00:03:45,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 00:03:45,083 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 699 transitions. [2024-11-14 00:03:45,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 34 states have (on average 1.2647058823529411) internal successors, (43), 31 states have internal predecessors, (43), 16 states have call successors, (18), 10 states have call predecessors, (18), 7 states have return successors, (15), 14 states have call predecessors, (15), 14 states have call successors, (15) [2024-11-14 00:03:45,084 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 699 transitions. [2024-11-14 00:03:45,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-14 00:03:45,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 00:03:45,086 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 00:03:45,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 00:03:45,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 00:03:45,292 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 00:03:45,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 00:03:45,293 INFO L85 PathProgramCache]: Analyzing trace with hash -156675038, now seen corresponding path program 1 times [2024-11-14 00:03:45,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 00:03:45,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876822200] [2024-11-14 00:03:45,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:03:45,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 00:03:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:03:45,519 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-14 00:03:45,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 00:03:45,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876822200] [2024-11-14 00:03:45,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876822200] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 00:03:45,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214817018] [2024-11-14 00:03:45,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 00:03:45,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 00:03:45,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 00:03:45,523 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 00:03:45,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4cb4878-859a-4b44-ab98-69be475facc3/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 00:03:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 00:03:46,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 1009 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 00:03:46,032 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 00:03:46,093 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 00:03:46,094 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 00:03:46,228 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 00:03:46,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214817018] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 00:03:46,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1744227592] [2024-11-14 00:03:46,233 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2024-11-14 00:03:46,235 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 00:03:46,236 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 00:03:46,236 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 00:03:46,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs