./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product27.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_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/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_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/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_d638c62c-a853-4536-8675-720b70b1557c/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 1c4d0e54eab5e94cf1a4af64165a2546f1c45e063bd8600195a743522777000c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:49:20,498 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:49:20,574 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 02:49:20,583 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:49:20,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:49:20,626 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:49:20,627 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:49:20,628 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:49:20,628 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:49:20,628 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:49:20,630 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:49:20,630 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:49:20,630 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:49:20,630 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:49:20,630 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:49:20,631 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:49:20,631 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:49:20,631 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:49:20,631 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:49:20,632 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:49:20,632 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:49:20,632 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:49:20,633 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:49:20,633 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:49:20,633 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:49:20,633 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:49:20,633 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:49:20,633 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:49:20,633 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:49:20,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:49:20,634 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:49:20,634 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:49:20,634 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:49:20,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:49:20,635 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:49:20,635 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:49:20,635 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:49:20,636 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:49:20,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:49:20,636 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:49:20,636 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:49:20,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:49:20,636 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:49:20,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:49:20,637 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:49:20,637 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:49:20,637 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:49:20,637 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_d638c62c-a853-4536-8675-720b70b1557c/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 -> 1c4d0e54eab5e94cf1a4af64165a2546f1c45e063bd8600195a743522777000c [2024-11-14 02:49:20,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:49:21,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:49:21,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:49:21,015 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:49:21,016 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:49:21,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec3_product27.cil.c Unable to find full path for "g++" [2024-11-14 02:49:22,922 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:49:23,297 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:49:23,298 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/sv-benchmarks/c/product-lines/email_spec3_product27.cil.c [2024-11-14 02:49:23,331 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/data/b429cc6fd/bc83badbb5ec4d79ba0e7e42194c65e5/FLAG2cf58b48f [2024-11-14 02:49:23,349 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/data/b429cc6fd/bc83badbb5ec4d79ba0e7e42194c65e5 [2024-11-14 02:49:23,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:49:23,353 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:49:23,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:49:23,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:49:23,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:49:23,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:49:23" (1/1) ... [2024-11-14 02:49:23,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7586f074 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:23, skipping insertion in model container [2024-11-14 02:49:23,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:49:23" (1/1) ... [2024-11-14 02:49:23,422 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:49:24,078 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_d638c62c-a853-4536-8675-720b70b1557c/sv-benchmarks/c/product-lines/email_spec3_product27.cil.c[40661,40674] [2024-11-14 02:49:24,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:49:24,206 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:49:24,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-14 02:49:24,217 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [167] [2024-11-14 02:49:24,217 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [184] [2024-11-14 02:49:24,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [550] [2024-11-14 02:49:24,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [612] [2024-11-14 02:49:24,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [650] [2024-11-14 02:49:24,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1054] [2024-11-14 02:49:24,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1435] [2024-11-14 02:49:24,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1756] [2024-11-14 02:49:24,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1978] [2024-11-14 02:49:24,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1987] [2024-11-14 02:49:24,326 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_d638c62c-a853-4536-8675-720b70b1557c/sv-benchmarks/c/product-lines/email_spec3_product27.cil.c[40661,40674] [2024-11-14 02:49:24,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:49:24,401 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:49:24,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24 WrapperNode [2024-11-14 02:49:24,402 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:49:24,404 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:49:24,404 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:49:24,404 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:49:24,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24" (1/1) ... [2024-11-14 02:49:24,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24" (1/1) ... [2024-11-14 02:49:24,549 INFO L138 Inliner]: procedures = 134, calls = 215, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1102 [2024-11-14 02:49:24,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:49:24,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:49:24,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:49:24,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:49:24,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24" (1/1) ... [2024-11-14 02:49:24,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24" (1/1) ... [2024-11-14 02:49:24,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24" (1/1) ... [2024-11-14 02:49:24,582 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24" (1/1) ... [2024-11-14 02:49:24,621 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24" (1/1) ... [2024-11-14 02:49:24,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24" (1/1) ... [2024-11-14 02:49:24,650 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24" (1/1) ... [2024-11-14 02:49:24,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24" (1/1) ... [2024-11-14 02:49:24,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:49:24,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:49:24,669 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:49:24,669 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:49:24,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24" (1/1) ... [2024-11-14 02:49:24,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:49:24,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:49:24,717 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:49:24,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:49:24,770 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-14 02:49:24,770 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-14 02:49:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-14 02:49:24,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-14 02:49:24,771 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 02:49:24,771 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 02:49:24,772 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-14 02:49:24,772 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-14 02:49:24,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 02:49:24,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 02:49:24,772 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-14 02:49:24,773 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-14 02:49:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 02:49:24,774 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 02:49:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-14 02:49:24,774 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-14 02:49:24,775 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 02:49:24,775 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 02:49:24,775 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-14 02:49:24,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-14 02:49:24,775 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-14 02:49:24,778 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-14 02:49:24,778 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 02:49:24,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 02:49:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:49:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-14 02:49:24,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-14 02:49:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-14 02:49:24,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-14 02:49:24,779 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-14 02:49:24,779 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-14 02:49:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 02:49:24,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 02:49:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-14 02:49:24,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-14 02:49:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 02:49:24,780 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 02:49:24,780 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 02:49:24,782 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 02:49:24,782 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-14 02:49:24,782 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-14 02:49:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 02:49:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 02:49:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 02:49:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 02:49:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 02:49:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 02:49:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:49:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 02:49:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 02:49:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-14 02:49:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-14 02:49:24,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:49:24,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:49:25,080 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:49:25,083 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:49:26,626 INFO L? ?]: Removed 564 outVars from TransFormulas that were not future-live. [2024-11-14 02:49:26,626 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:49:27,632 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:49:27,632 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:49:27,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:49:27 BoogieIcfgContainer [2024-11-14 02:49:27,632 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:49:27,635 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:49:27,635 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:49:27,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:49:27,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:49:23" (1/3) ... [2024-11-14 02:49:27,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2383dbc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:49:27, skipping insertion in model container [2024-11-14 02:49:27,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:49:24" (2/3) ... [2024-11-14 02:49:27,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2383dbc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:49:27, skipping insertion in model container [2024-11-14 02:49:27,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:49:27" (3/3) ... [2024-11-14 02:49:27,643 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product27.cil.c [2024-11-14 02:49:27,662 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:49:27,666 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec3_product27.cil.c that has 26 procedures, 212 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:49:27,760 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:49:27,783 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;@71241da4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:49:27,783 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:49:27,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 212 states, 119 states have (on average 1.3025210084033614) internal successors, (155), 124 states have internal predecessors, (155), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-14 02:49:27,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 02:49:27,805 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:49:27,807 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:49:27,807 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:49:27,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:49:27,815 INFO L85 PathProgramCache]: Analyzing trace with hash -620881834, now seen corresponding path program 1 times [2024-11-14 02:49:27,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:49:27,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366488046] [2024-11-14 02:49:27,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:49:27,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:49:28,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:49:28,404 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:49:28,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:49:28,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366488046] [2024-11-14 02:49:28,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366488046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:49:28,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:49:28,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:49:28,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360886938] [2024-11-14 02:49:28,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:49:28,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 02:49:28,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:49:28,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 02:49:28,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 02:49:28,436 INFO L87 Difference]: Start difference. First operand has 212 states, 119 states have (on average 1.3025210084033614) internal successors, (155), 124 states have internal predecessors, (155), 66 states have call successors, (66), 25 states have call predecessors, (66), 25 states have return successors, (66), 64 states have call predecessors, (66), 66 states have call successors, (66) 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 02:49:28,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:49:28,626 INFO L93 Difference]: Finished difference Result 331 states and 445 transitions. [2024-11-14 02:49:28,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 02:49:28,629 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 70 [2024-11-14 02:49:28,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:49:28,640 INFO L225 Difference]: With dead ends: 331 [2024-11-14 02:49:28,641 INFO L226 Difference]: Without dead ends: 208 [2024-11-14 02:49:28,647 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 [2024-11-14 02:49:28,653 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:49:28,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 240 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:49:28,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-14 02:49:28,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-11-14 02:49:28,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 117 states have (on average 1.2735042735042734) internal successors, (149), 120 states have internal predecessors, (149), 66 states have call successors, (66), 25 states have call predecessors, (66), 24 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 02:49:28,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 278 transitions. [2024-11-14 02:49:28,722 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 278 transitions. Word has length 70 [2024-11-14 02:49:28,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:49:28,723 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 278 transitions. [2024-11-14 02:49:28,724 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 02:49:28,724 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 278 transitions. [2024-11-14 02:49:28,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 02:49:28,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:49:28,728 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:49:28,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:49:28,728 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:49:28,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:49:28,729 INFO L85 PathProgramCache]: Analyzing trace with hash -267457987, now seen corresponding path program 1 times [2024-11-14 02:49:28,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:49:28,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842244654] [2024-11-14 02:49:28,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:49:28,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:49:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:49:29,202 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:49:29,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:49:29,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842244654] [2024-11-14 02:49:29,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842244654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:49:29,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:49:29,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:49:29,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486043093] [2024-11-14 02:49:29,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:49:29,204 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:49:29,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:49:29,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:49:29,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:49:29,211 INFO L87 Difference]: Start difference. First operand 208 states and 278 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 02:49:29,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:49:29,423 INFO L93 Difference]: Finished difference Result 326 states and 426 transitions. [2024-11-14 02:49:29,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:49:29,424 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2024-11-14 02:49:29,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:49:29,427 INFO L225 Difference]: With dead ends: 326 [2024-11-14 02:49:29,430 INFO L226 Difference]: Without dead ends: 210 [2024-11-14 02:49:29,431 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 [2024-11-14 02:49:29,432 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:49:29,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 473 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:49:29,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-14 02:49:29,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-11-14 02:49:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 119 states have (on average 1.26890756302521) internal successors, (151), 122 states have internal predecessors, (151), 66 states have call successors, (66), 25 states have call predecessors, (66), 24 states have return successors, (63), 62 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 02:49:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 280 transitions. [2024-11-14 02:49:29,473 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 280 transitions. Word has length 71 [2024-11-14 02:49:29,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:49:29,475 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 280 transitions. [2024-11-14 02:49:29,475 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 02:49:29,475 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 280 transitions. [2024-11-14 02:49:29,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 02:49:29,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:49:29,480 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:49:29,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 02:49:29,481 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:49:29,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:49:29,482 INFO L85 PathProgramCache]: Analyzing trace with hash 703752785, now seen corresponding path program 1 times [2024-11-14 02:49:29,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:49:29,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503398365] [2024-11-14 02:49:29,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:49:29,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:49:29,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:49:29,768 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:49:29,769 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:49:29,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503398365] [2024-11-14 02:49:29,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503398365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:49:29,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:49:29,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:49:29,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690471253] [2024-11-14 02:49:29,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:49:29,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:49:29,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:49:29,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:49:29,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:49:29,771 INFO L87 Difference]: Start difference. First operand 210 states and 280 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 02:49:29,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:49:29,974 INFO L93 Difference]: Finished difference Result 455 states and 627 transitions. [2024-11-14 02:49:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:49:29,975 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2024-11-14 02:49:29,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:49:29,978 INFO L225 Difference]: With dead ends: 455 [2024-11-14 02:49:29,979 INFO L226 Difference]: Without dead ends: 263 [2024-11-14 02:49:29,980 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 [2024-11-14 02:49:29,981 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 59 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:49:29,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 475 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:49:29,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2024-11-14 02:49:30,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 258. [2024-11-14 02:49:30,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 153 states have (on average 1.34640522875817) internal successors, (206), 156 states have internal predecessors, (206), 80 states have call successors, (80), 25 states have call predecessors, (80), 24 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-14 02:49:30,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 363 transitions. [2024-11-14 02:49:30,039 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 363 transitions. Word has length 76 [2024-11-14 02:49:30,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:49:30,039 INFO L471 AbstractCegarLoop]: Abstraction has 258 states and 363 transitions. [2024-11-14 02:49:30,039 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, (18), 2 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 02:49:30,039 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 363 transitions. [2024-11-14 02:49:30,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 02:49:30,043 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:49:30,043 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:49:30,043 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 02:49:30,043 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:49:30,044 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:49:30,044 INFO L85 PathProgramCache]: Analyzing trace with hash 886356571, now seen corresponding path program 1 times [2024-11-14 02:49:30,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:49:30,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409105981] [2024-11-14 02:49:30,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:49:30,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:49:30,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:49:30,387 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:49:30,387 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:49:30,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409105981] [2024-11-14 02:49:30,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409105981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:49:30,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616894892] [2024-11-14 02:49:30,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:49:30,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:49:30,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:49:30,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:49:30,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 02:49:30,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:49:30,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:49:30,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:49:31,015 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:49:31,015 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:49:31,160 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:49:31,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616894892] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:49:31,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [78348940] [2024-11-14 02:49:31,190 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2024-11-14 02:49:31,190 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:49:31,194 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:49:31,199 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:49:31,200 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:49:58,697 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-14 02:49:58,889 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-14 02:49:59,000 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:51:01,885 WARN L286 SmtUtils]: Spent 10.60s on a formula simplification. DAG size of input: 459 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:51:15,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [78348940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:51:15,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:51:15,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 02:51:15,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611705714] [2024-11-14 02:51:15,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:51:15,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 02:51:15,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:15,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 02:51:15,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2024-11-14 02:51:15,680 INFO L87 Difference]: Start difference. First operand 258 states and 363 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 02:51:30,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:51:30,153 INFO L93 Difference]: Finished difference Result 531 states and 764 transitions. [2024-11-14 02:51:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 02:51:30,154 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 77 [2024-11-14 02:51:30,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:51:30,158 INFO L225 Difference]: With dead ends: 531 [2024-11-14 02:51:30,158 INFO L226 Difference]: Without dead ends: 291 [2024-11-14 02:51:30,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 205 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 80.2s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-14 02:51:30,163 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 26 mSDsluCounter, 2913 mSDsCounter, 0 mSdLazyCounter, 2190 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3131 SdHoareTripleChecker+Invalid, 2200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-14 02:51:30,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3131 Invalid, 2200 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2190 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2024-11-14 02:51:30,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-14 02:51:30,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 281. [2024-11-14 02:51:30,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 175 states have (on average 1.3657142857142857) internal successors, (239), 178 states have internal predecessors, (239), 80 states have call successors, (80), 26 states have call predecessors, (80), 25 states have return successors, (77), 76 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-14 02:51:30,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 396 transitions. [2024-11-14 02:51:30,270 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 396 transitions. Word has length 77 [2024-11-14 02:51:30,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:51:30,270 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 396 transitions. [2024-11-14 02:51:30,270 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 02:51:30,271 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 396 transitions. [2024-11-14 02:51:30,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 02:51:30,273 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:51:30,274 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:51:30,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 02:51:30,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:51:30,478 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:51:30,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:51:30,478 INFO L85 PathProgramCache]: Analyzing trace with hash -365426583, now seen corresponding path program 1 times [2024-11-14 02:51:30,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:51:30,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880061440] [2024-11-14 02:51:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:30,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:51:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:30,609 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 02:51:30,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:51:30,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880061440] [2024-11-14 02:51:30,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880061440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:51:30,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:51:30,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:51:30,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191654211] [2024-11-14 02:51:30,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:51:30,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:51:30,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:51:30,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:51:30,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:51:30,611 INFO L87 Difference]: Start difference. First operand 281 states and 396 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-14 02:51:30,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:51:30,859 INFO L93 Difference]: Finished difference Result 665 states and 972 transitions. [2024-11-14 02:51:30,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:51:30,860 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 82 [2024-11-14 02:51:30,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:51:30,863 INFO L225 Difference]: With dead ends: 665 [2024-11-14 02:51:30,863 INFO L226 Difference]: Without dead ends: 408 [2024-11-14 02:51:30,865 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 [2024-11-14 02:51:30,865 INFO L432 NwaCegarLoop]: 245 mSDtfsCounter, 57 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:51:30,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 482 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:51:30,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-14 02:51:30,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 403. [2024-11-14 02:51:30,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 266 states have (on average 1.4248120300751879) internal successors, (379), 269 states have internal predecessors, (379), 111 states have call successors, (111), 26 states have call predecessors, (111), 25 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-14 02:51:30,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 598 transitions. [2024-11-14 02:51:30,992 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 598 transitions. Word has length 82 [2024-11-14 02:51:30,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:51:30,992 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 598 transitions. [2024-11-14 02:51:30,992 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-14 02:51:30,992 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 598 transitions. [2024-11-14 02:51:30,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 02:51:30,995 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:51:30,995 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:51:30,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 02:51:30,995 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:51:30,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:51:30,996 INFO L85 PathProgramCache]: Analyzing trace with hash 937598480, now seen corresponding path program 1 times [2024-11-14 02:51:30,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:51:30,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547357844] [2024-11-14 02:51:30,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:30,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:51:31,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:31,187 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 02:51:31,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:51:31,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547357844] [2024-11-14 02:51:31,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547357844] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:51:31,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032648377] [2024-11-14 02:51:31,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:51:31,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:51:31,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:51:31,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:51:31,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 02:51:31,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:51:31,637 INFO L255 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:51:31,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:51:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 02:51:31,681 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:51:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 02:51:31,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032648377] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:51:31,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1356880394] [2024-11-14 02:51:31,790 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-14 02:51:31,790 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:51:31,791 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:51:31,791 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:51:31,791 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:52:11,621 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-14 02:52:11,814 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 443 for LOIs [2024-11-14 02:52:13,161 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:52:38,841 WARN L286 SmtUtils]: Spent 7.71s on a formula simplification. DAG size of input: 443 DAG size of output: 443 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:52:50,931 WARN L286 SmtUtils]: Spent 11.65s on a formula simplification. DAG size of input: 467 DAG size of output: 462 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:53:38,223 WARN L286 SmtUtils]: Spent 11.69s on a formula simplification. DAG size of input: 460 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:53:51,279 WARN L286 SmtUtils]: Spent 11.67s on a formula simplification. DAG size of input: 461 DAG size of output: 460 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:54:04,593 WARN L286 SmtUtils]: Spent 11.71s on a formula simplification. DAG size of input: 465 DAG size of output: 464 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:54:19,016 WARN L286 SmtUtils]: Spent 11.40s on a formula simplification. DAG size of input: 465 DAG size of output: 464 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:54:33,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1356880394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:54:33,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:54:33,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-14 02:54:33,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148851511] [2024-11-14 02:54:33,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:54:33,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 02:54:33,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:54:33,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 02:54:33,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2024-11-14 02:54:33,443 INFO L87 Difference]: Start difference. First operand 403 states and 598 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, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-14 02:54:53,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:54:53,595 INFO L93 Difference]: Finished difference Result 816 states and 1239 transitions. [2024-11-14 02:54:53,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 02:54:53,597 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, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 83 [2024-11-14 02:54:53,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:54:53,601 INFO L225 Difference]: With dead ends: 816 [2024-11-14 02:54:53,601 INFO L226 Difference]: Without dead ends: 476 [2024-11-14 02:54:53,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 220 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 143.5s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 02:54:53,604 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 43 mSDsluCounter, 3165 mSDsCounter, 0 mSdLazyCounter, 2865 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3382 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2024-11-14 02:54:53,604 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3382 Invalid, 2874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2865 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2024-11-14 02:54:53,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-14 02:54:53,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 417. [2024-11-14 02:54:53,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 278 states have (on average 1.4244604316546763) internal successors, (396), 281 states have internal predecessors, (396), 112 states have call successors, (112), 27 states have call predecessors, (112), 26 states have return successors, (109), 108 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-14 02:54:53,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 617 transitions. [2024-11-14 02:54:53,731 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 617 transitions. Word has length 83 [2024-11-14 02:54:53,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:54:53,731 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 617 transitions. [2024-11-14 02:54:53,732 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, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-14 02:54:53,732 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 617 transitions. [2024-11-14 02:54:53,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 02:54:53,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:54:53,735 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:54:53,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 02:54:53,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:54:53,936 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:54:53,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:54:53,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1756309470, now seen corresponding path program 1 times [2024-11-14 02:54:53,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:54:53,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089884070] [2024-11-14 02:54:53,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:54:53,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:54:53,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:54:54,201 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:54:54,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:54:54,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089884070] [2024-11-14 02:54:54,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089884070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:54:54,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774713375] [2024-11-14 02:54:54,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:54:54,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:54:54,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:54:54,204 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:54:54,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 02:54:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:54:54,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:54:54,727 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:54:54,754 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:54:54,754 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:54:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:54:54,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774713375] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:54:54,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1949218702] [2024-11-14 02:54:54,869 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2024-11-14 02:54:54,869 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:54:54,869 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:54:54,870 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:54:54,870 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:55:57,822 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-14 02:55:57,997 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 489 for LOIs [2024-11-14 02:55:59,060 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 498 for LOIs [2024-11-14 02:56:00,173 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 434 for LOIs [2024-11-14 02:56:00,478 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-14 02:56:00,601 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:57:07,473 WARN L286 SmtUtils]: Spent 12.19s on a formula simplification. DAG size of input: 518 DAG size of output: 513 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:57:21,312 WARN L286 SmtUtils]: Spent 12.86s on a formula simplification. DAG size of input: 519 DAG size of output: 513 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:58:13,887 WARN L286 SmtUtils]: Spent 5.00s on a formula simplification. DAG size of input: 489 DAG size of output: 485 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:58:19,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1949218702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:58:19,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:58:19,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-14 02:58:19,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311755263] [2024-11-14 02:58:19,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:58:19,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 02:58:19,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:58:19,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 02:58:19,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 02:58:19,606 INFO L87 Difference]: Start difference. First operand 417 states and 617 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, (21), 6 states have call predecessors, (21), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-14 02:58:48,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:58:48,721 INFO L93 Difference]: Finished difference Result 841 states and 1274 transitions. [2024-11-14 02:58:48,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 02:58:48,722 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, (21), 6 states have call predecessors, (21), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 86 [2024-11-14 02:58:48,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:58:48,727 INFO L225 Difference]: With dead ends: 841 [2024-11-14 02:58:48,727 INFO L226 Difference]: Without dead ends: 501 [2024-11-14 02:58:48,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 143.0s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 02:58:48,730 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 52 mSDsluCounter, 4124 mSDsCounter, 0 mSdLazyCounter, 4174 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 4340 SdHoareTripleChecker+Invalid, 4184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2024-11-14 02:58:48,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 4340 Invalid, 4184 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 4174 Invalid, 0 Unknown, 0 Unchecked, 24.7s Time] [2024-11-14 02:58:48,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2024-11-14 02:58:48,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 453. [2024-11-14 02:58:48,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 308 states have (on average 1.422077922077922) internal successors, (438), 311 states have internal predecessors, (438), 115 states have call successors, (115), 30 states have call predecessors, (115), 29 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 02:58:48,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 665 transitions. [2024-11-14 02:58:48,937 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 665 transitions. Word has length 86 [2024-11-14 02:58:48,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:58:48,937 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 665 transitions. [2024-11-14 02:58:48,937 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, (21), 6 states have call predecessors, (21), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-14 02:58:48,937 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 665 transitions. [2024-11-14 02:58:48,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-14 02:58:48,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:58:48,941 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:58:48,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 02:58:49,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:58:49,142 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:58:49,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:58:49,143 INFO L85 PathProgramCache]: Analyzing trace with hash -30197542, now seen corresponding path program 1 times [2024-11-14 02:58:49,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:58:49,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741882608] [2024-11-14 02:58:49,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:58:49,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:58:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:58:49,315 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:58:49,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:58:49,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741882608] [2024-11-14 02:58:49,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741882608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:58:49,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99569868] [2024-11-14 02:58:49,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:58:49,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:58:49,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:58:49,319 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:58:49,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 02:58:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:58:49,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:58:49,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:58:49,863 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:58:49,863 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:58:49,977 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:58:49,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99569868] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:58:49,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1675291518] [2024-11-14 02:58:49,982 INFO L159 IcfgInterpreter]: Started Sifa with 74 locations of interest [2024-11-14 02:58:49,982 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:58:49,982 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:58:49,983 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:58:49,983 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:59:25,867 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-14 02:59:26,009 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-14 02:59:26,113 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:00:30,352 WARN L286 SmtUtils]: Spent 10.90s on a formula simplification. DAG size of input: 459 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:01:06,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1675291518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:06,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:01:06,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 03:01:06,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59757547] [2024-11-14 03:01:06,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:06,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 03:01:06,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:06,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 03:01:06,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:01:06,543 INFO L87 Difference]: Start difference. First operand 453 states and 665 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 03:01:22,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:22,527 INFO L93 Difference]: Finished difference Result 842 states and 1263 transitions. [2024-11-14 03:01:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 03:01:22,528 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 85 [2024-11-14 03:01:22,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:22,533 INFO L225 Difference]: With dead ends: 842 [2024-11-14 03:01:22,533 INFO L226 Difference]: Without dead ends: 502 [2024-11-14 03:01:22,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 225 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 104.3s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 03:01:22,537 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 18 mSDsluCounter, 3086 mSDsCounter, 0 mSdLazyCounter, 2509 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3299 SdHoareTripleChecker+Invalid, 2518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:22,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3299 Invalid, 2518 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2509 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2024-11-14 03:01:22,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-14 03:01:22,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 473. [2024-11-14 03:01:22,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 328 states have (on average 1.4268292682926829) internal successors, (468), 331 states have internal predecessors, (468), 115 states have call successors, (115), 30 states have call predecessors, (115), 29 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 03:01:22,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 695 transitions. [2024-11-14 03:01:22,733 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 695 transitions. Word has length 85 [2024-11-14 03:01:22,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:22,734 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 695 transitions. [2024-11-14 03:01:22,734 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, (18), 3 states have call predecessors, (18), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 03:01:22,734 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 695 transitions. [2024-11-14 03:01:22,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-14 03:01:22,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:22,737 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:22,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 03:01:22,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:01:22,942 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:22,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:22,942 INFO L85 PathProgramCache]: Analyzing trace with hash -1518233205, now seen corresponding path program 1 times [2024-11-14 03:01:22,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:22,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118614945] [2024-11-14 03:01:22,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:22,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:23,174 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:01:23,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:23,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118614945] [2024-11-14 03:01:23,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118614945] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:01:23,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341600754] [2024-11-14 03:01:23,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:23,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:01:23,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:01:23,178 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:01:23,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d638c62c-a853-4536-8675-720b70b1557c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:01:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:23,692 INFO L255 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:01:23,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:23,738 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:01:23,742 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:01:23,863 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:01:23,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341600754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:01:23,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1835794264] [2024-11-14 03:01:23,868 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-14 03:01:23,868 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:01:23,869 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:01:23,869 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:01:23,869 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:02:03,059 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2024-11-14 03:02:03,256 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 445 for LOIs [2024-11-14 03:02:04,610 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:02:30,102 WARN L286 SmtUtils]: Spent 8.43s on a formula simplification. DAG size of input: 445 DAG size of output: 446 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:02:41,848 WARN L286 SmtUtils]: Spent 11.25s on a formula simplification. DAG size of input: 469 DAG size of output: 464 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:03:30,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1835794264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:03:30,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:03:30,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [5, 5, 5] total 33 [2024-11-14 03:03:30,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447748296] [2024-11-14 03:03:30,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:03:30,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-14 03:03:30,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:03:30,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-14 03:03:30,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=949, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 03:03:30,185 INFO L87 Difference]: Start difference. First operand 473 states and 695 transitions. Second operand has 28 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 8 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15)