./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product26.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_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/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_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/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_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/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 5be9e48e11f5f92f9ccb04262780ea6fa0bae40b757b81b8e52fca7547f54831 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:30:39,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:30:39,964 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 05:30:39,972 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:30:39,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:30:40,002 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:30:40,003 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:30:40,003 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:30:40,003 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:30:40,003 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:30:40,003 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:30:40,003 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:30:40,004 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:30:40,004 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:30:40,004 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:30:40,004 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:30:40,004 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:30:40,004 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:30:40,004 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:30:40,004 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:30:40,006 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:30:40,006 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:30:40,007 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:30:40,007 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:30:40,007 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 05:30:40,007 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:30:40,007 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 05:30:40,008 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:30:40,008 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:30:40,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:30:40,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:30:40,008 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:30:40,008 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 05:30:40,008 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:30:40,008 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:30:40,009 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:30:40,009 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:30:40,009 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:30:40,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:30:40,009 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:30:40,009 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:30:40,009 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:30:40,009 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:30:40,009 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:30:40,009 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:30:40,010 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:30:40,010 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:30:40,010 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_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/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 -> 5be9e48e11f5f92f9ccb04262780ea6fa0bae40b757b81b8e52fca7547f54831 [2024-11-14 05:30:40,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:30:40,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:30:40,337 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:30:40,338 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:30:40,338 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:30:40,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec8_product26.cil.c Unable to find full path for "g++" [2024-11-14 05:30:42,300 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:30:42,654 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:30:42,659 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/sv-benchmarks/c/product-lines/email_spec8_product26.cil.c [2024-11-14 05:30:42,693 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/data/f8ae807b4/c7d0141ce9f94b258c0ada9ca9696eb7/FLAG67d640c74 [2024-11-14 05:30:42,865 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/data/f8ae807b4/c7d0141ce9f94b258c0ada9ca9696eb7 [2024-11-14 05:30:42,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:30:42,869 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:30:42,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:30:42,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:30:42,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:30:42,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:30:42" (1/1) ... [2024-11-14 05:30:42,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@767fa863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:42, skipping insertion in model container [2024-11-14 05:30:42,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:30:42" (1/1) ... [2024-11-14 05:30:42,933 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:30:43,387 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_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/sv-benchmarks/c/product-lines/email_spec8_product26.cil.c[14808,14821] [2024-11-14 05:30:43,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:30:43,703 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:30:43,714 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-14 05:30:43,715 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [392] [2024-11-14 05:30:43,716 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [436] [2024-11-14 05:30:43,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [794] [2024-11-14 05:30:43,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [803] [2024-11-14 05:30:43,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1169] [2024-11-14 05:30:43,717 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1391] [2024-11-14 05:30:43,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1426] [2024-11-14 05:30:43,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1443] [2024-11-14 05:30:43,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1847] [2024-11-14 05:30:43,718 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1950] [2024-11-14 05:30:43,752 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_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/sv-benchmarks/c/product-lines/email_spec8_product26.cil.c[14808,14821] [2024-11-14 05:30:43,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:30:43,906 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:30:43,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43 WrapperNode [2024-11-14 05:30:43,907 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:30:43,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:30:43,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:30:43,909 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:30:43,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:43,942 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:43,996 INFO L138 Inliner]: procedures = 132, calls = 208, calls flagged for inlining = 61, calls inlined = 58, statements flattened = 1111 [2024-11-14 05:30:43,996 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:30:43,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:30:43,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:30:43,997 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:30:44,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:44,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:44,010 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:44,010 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:44,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:44,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:44,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:44,048 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:44,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:30:44,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:30:44,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:30:44,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:30:44,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43" (1/1) ... [2024-11-14 05:30:44,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:30:44,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:44,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:30:44,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:30:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-14 05:30:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-14 05:30:44,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-14 05:30:44,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-14 05:30:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-14 05:30:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-14 05:30:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-14 05:30:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-14 05:30:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 05:30:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 05:30:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-14 05:30:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-14 05:30:44,174 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 05:30:44,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 05:30:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 05:30:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 05:30:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-14 05:30:44,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-14 05:30:44,175 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 05:30:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 05:30:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-14 05:30:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-14 05:30:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-14 05:30:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-14 05:30:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 05:30:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 05:30:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:30:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-14 05:30:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-14 05:30:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 05:30:44,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 05:30:44,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 05:30:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 05:30:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 05:30:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 05:30:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 05:30:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 05:30:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-14 05:30:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-14 05:30:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 05:30:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 05:30:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 05:30:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 05:30:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:30:44,177 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 05:30:44,177 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 05:30:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-14 05:30:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-14 05:30:44,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:30:44,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:30:44,442 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:30:44,444 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:30:45,804 INFO L? ?]: Removed 546 outVars from TransFormulas that were not future-live. [2024-11-14 05:30:45,805 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:30:46,648 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:30:46,649 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 05:30:46,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:30:46 BoogieIcfgContainer [2024-11-14 05:30:46,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:30:46,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:30:46,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:30:46,656 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:30:46,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:30:42" (1/3) ... [2024-11-14 05:30:46,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705c679b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:30:46, skipping insertion in model container [2024-11-14 05:30:46,657 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:43" (2/3) ... [2024-11-14 05:30:46,658 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705c679b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:30:46, skipping insertion in model container [2024-11-14 05:30:46,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:30:46" (3/3) ... [2024-11-14 05:30:46,659 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product26.cil.c [2024-11-14 05:30:46,675 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:30:46,677 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec8_product26.cil.c that has 24 procedures, 200 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 05:30:46,749 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:30:46,766 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;@2063a58f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:30:46,767 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:30:46,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 200 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 118 states have internal predecessors, (149), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-14 05:30:46,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 05:30:46,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:46,788 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] [2024-11-14 05:30:46,790 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:30:46,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:46,795 INFO L85 PathProgramCache]: Analyzing trace with hash 1173236628, now seen corresponding path program 1 times [2024-11-14 05:30:46,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:46,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415305499] [2024-11-14 05:30:46,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:46,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:47,201 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 05:30:47,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:47,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415305499] [2024-11-14 05:30:47,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415305499] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:47,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:47,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 05:30:47,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56270710] [2024-11-14 05:30:47,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:47,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 05:30:47,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:47,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 05:30:47,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 05:30:47,231 INFO L87 Difference]: Start difference. First operand has 200 states, 113 states have (on average 1.3185840707964602) internal successors, (149), 118 states have internal predecessors, (149), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:30:47,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:47,410 INFO L93 Difference]: Finished difference Result 308 states and 417 transitions. [2024-11-14 05:30:47,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 05:30:47,412 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 63 [2024-11-14 05:30:47,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:47,426 INFO L225 Difference]: With dead ends: 308 [2024-11-14 05:30:47,426 INFO L226 Difference]: Without dead ends: 197 [2024-11-14 05:30:47,432 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 05:30:47,437 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:47,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:30:47,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-14 05:30:47,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-14 05:30:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 111 states have (on average 1.2882882882882882) internal successors, (143), 115 states have internal predecessors, (143), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-14 05:30:47,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 266 transitions. [2024-11-14 05:30:47,511 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 266 transitions. Word has length 63 [2024-11-14 05:30:47,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:47,512 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 266 transitions. [2024-11-14 05:30:47,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:30:47,512 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 266 transitions. [2024-11-14 05:30:47,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 05:30:47,515 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:47,516 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] [2024-11-14 05:30:47,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:30:47,516 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:30:47,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:47,517 INFO L85 PathProgramCache]: Analyzing trace with hash -824140545, now seen corresponding path program 1 times [2024-11-14 05:30:47,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:47,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107102810] [2024-11-14 05:30:47,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:47,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:47,848 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 05:30:47,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:47,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107102810] [2024-11-14 05:30:47,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107102810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:47,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:47,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:30:47,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568066193] [2024-11-14 05:30:47,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:47,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:30:47,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:47,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:30:47,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:30:47,851 INFO L87 Difference]: Start difference. First operand 197 states and 266 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:30:48,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:48,043 INFO L93 Difference]: Finished difference Result 304 states and 402 transitions. [2024-11-14 05:30:48,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:30:48,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 64 [2024-11-14 05:30:48,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:48,048 INFO L225 Difference]: With dead ends: 304 [2024-11-14 05:30:48,048 INFO L226 Difference]: Without dead ends: 199 [2024-11-14 05:30:48,051 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 05:30:48,052 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 0 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:48,052 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 453 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 05:30:48,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-14 05:30:48,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2024-11-14 05:30:48,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 113 states have (on average 1.2831858407079646) internal successors, (145), 117 states have internal predecessors, (145), 62 states have call successors, (62), 23 states have call predecessors, (62), 23 states have return successors, (61), 60 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-14 05:30:48,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 268 transitions. [2024-11-14 05:30:48,085 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 268 transitions. Word has length 64 [2024-11-14 05:30:48,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:48,085 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 268 transitions. [2024-11-14 05:30:48,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:30:48,088 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 268 transitions. [2024-11-14 05:30:48,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 05:30:48,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:48,091 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] [2024-11-14 05:30:48,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:30:48,092 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:30:48,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:48,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2043141815, now seen corresponding path program 1 times [2024-11-14 05:30:48,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:48,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510319300] [2024-11-14 05:30:48,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:48,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:48,316 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 05:30:48,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:48,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510319300] [2024-11-14 05:30:48,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510319300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:30:48,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:30:48,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:30:48,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951736118] [2024-11-14 05:30:48,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:30:48,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:30:48,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:30:48,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:30:48,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:30:48,318 INFO L87 Difference]: Start difference. First operand 199 states and 268 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:30:48,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:30:48,493 INFO L93 Difference]: Finished difference Result 433 states and 603 transitions. [2024-11-14 05:30:48,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:30:48,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 69 [2024-11-14 05:30:48,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:30:48,496 INFO L225 Difference]: With dead ends: 433 [2024-11-14 05:30:48,497 INFO L226 Difference]: Without dead ends: 252 [2024-11-14 05:30:48,498 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 05:30:48,498 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 59 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:30:48,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 469 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:30:48,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-14 05:30:48,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 247. [2024-11-14 05:30:48,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 147 states have (on average 1.3605442176870748) internal successors, (200), 151 states have internal predecessors, (200), 76 states have call successors, (76), 23 states have call predecessors, (76), 23 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-14 05:30:48,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 351 transitions. [2024-11-14 05:30:48,524 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 351 transitions. Word has length 69 [2024-11-14 05:30:48,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:30:48,524 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 351 transitions. [2024-11-14 05:30:48,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 05:30:48,525 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 351 transitions. [2024-11-14 05:30:48,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 05:30:48,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:30:48,528 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] [2024-11-14 05:30:48,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:30:48,528 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:30:48,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:30:48,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1403089525, now seen corresponding path program 1 times [2024-11-14 05:30:48,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:30:48,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209309631] [2024-11-14 05:30:48,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:48,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:30:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:48,878 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 05:30:48,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:30:48,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209309631] [2024-11-14 05:30:48,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209309631] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:30:48,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104313876] [2024-11-14 05:30:48,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:30:48,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:30:48,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:30:48,886 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:30:48,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:30:49,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:30:49,348 INFO L255 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:30:49,357 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:30:49,429 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 05:30:49,429 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:30:49,551 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 05:30:49,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104313876] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:30:49,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1542006360] [2024-11-14 05:30:49,591 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2024-11-14 05:30:49,592 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:30:49,595 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:30:49,600 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:30:49,601 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:31:17,289 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 05:31:17,430 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 05:31:17,577 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:32:13,964 WARN L286 SmtUtils]: Spent 9.74s on a formula simplification. DAG size of input: 453 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:32:25,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1542006360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:25,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:32:25,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 05:32:25,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568742502] [2024-11-14 05:32:25,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:25,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 05:32:25,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:25,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 05:32:25,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 05:32:25,667 INFO L87 Difference]: Start difference. First operand 247 states and 351 transitions. Second operand has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-14 05:32:37,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:37,455 INFO L93 Difference]: Finished difference Result 509 states and 740 transitions. [2024-11-14 05:32:37,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 05:32:37,456 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 70 [2024-11-14 05:32:37,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:37,459 INFO L225 Difference]: With dead ends: 509 [2024-11-14 05:32:37,459 INFO L226 Difference]: Without dead ends: 280 [2024-11-14 05:32:37,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 71.2s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-14 05:32:37,461 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 26 mSDsluCounter, 2625 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2833 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:37,461 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2833 Invalid, 2029 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2024-11-14 05:32:37,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-14 05:32:37,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 270. [2024-11-14 05:32:37,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 169 states have (on average 1.378698224852071) internal successors, (233), 173 states have internal predecessors, (233), 76 states have call successors, (76), 24 states have call predecessors, (76), 24 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2024-11-14 05:32:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 384 transitions. [2024-11-14 05:32:37,554 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 384 transitions. Word has length 70 [2024-11-14 05:32:37,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:37,556 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 384 transitions. [2024-11-14 05:32:37,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.466666666666667) internal successors, (37), 14 states have internal predecessors, (37), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-14 05:32:37,557 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 384 transitions. [2024-11-14 05:32:37,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 05:32:37,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:37,558 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] [2024-11-14 05:32:37,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:32:37,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:37,759 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:32:37,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:37,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1486297854, now seen corresponding path program 1 times [2024-11-14 05:32:37,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:37,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131555467] [2024-11-14 05:32:37,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:37,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:37,899 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 05:32:37,899 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:37,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131555467] [2024-11-14 05:32:37,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131555467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:32:37,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:32:37,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:32:37,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558682850] [2024-11-14 05:32:37,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:32:37,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:32:37,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:32:37,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:32:37,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:32:37,903 INFO L87 Difference]: Start difference. First operand 270 states and 384 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-14 05:32:38,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:32:38,125 INFO L93 Difference]: Finished difference Result 643 states and 948 transitions. [2024-11-14 05:32:38,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:32:38,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 75 [2024-11-14 05:32:38,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:32:38,129 INFO L225 Difference]: With dead ends: 643 [2024-11-14 05:32:38,129 INFO L226 Difference]: Without dead ends: 397 [2024-11-14 05:32:38,130 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 05:32:38,132 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 57 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:32:38,132 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 470 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:32:38,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-14 05:32:38,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 392. [2024-11-14 05:32:38,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 260 states have (on average 1.4346153846153846) internal successors, (373), 264 states have internal predecessors, (373), 107 states have call successors, (107), 24 states have call predecessors, (107), 24 states have return successors, (106), 105 states have call predecessors, (106), 106 states have call successors, (106) [2024-11-14 05:32:38,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 586 transitions. [2024-11-14 05:32:38,229 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 586 transitions. Word has length 75 [2024-11-14 05:32:38,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:32:38,230 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 586 transitions. [2024-11-14 05:32:38,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-14 05:32:38,230 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 586 transitions. [2024-11-14 05:32:38,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 05:32:38,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:32:38,232 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] [2024-11-14 05:32:38,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:32:38,233 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:32:38,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:32:38,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1426144341, now seen corresponding path program 1 times [2024-11-14 05:32:38,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:32:38,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215727003] [2024-11-14 05:32:38,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:38,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:32:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:38,415 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 05:32:38,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:32:38,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215727003] [2024-11-14 05:32:38,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215727003] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:32:38,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974280039] [2024-11-14 05:32:38,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:32:38,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:32:38,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:32:38,419 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:32:38,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 05:32:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:32:38,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:32:38,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:32:38,815 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 05:32:38,816 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:32:38,897 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 05:32:38,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974280039] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:32:38,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1174996883] [2024-11-14 05:32:38,900 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-14 05:32:38,900 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:32:38,900 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:32:38,901 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:32:38,901 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:33:11,133 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 05:33:11,256 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 437 for LOIs [2024-11-14 05:33:12,260 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:33:34,307 WARN L286 SmtUtils]: Spent 6.98s on a formula simplification. DAG size of input: 437 DAG size of output: 437 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:33:44,760 WARN L286 SmtUtils]: Spent 10.13s on a formula simplification. DAG size of input: 461 DAG size of output: 457 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:34:24,120 WARN L286 SmtUtils]: Spent 9.80s on a formula simplification. DAG size of input: 454 DAG size of output: 454 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:34:47,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1174996883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:34:47,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:34:47,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-14 05:34:47,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227319275] [2024-11-14 05:34:47,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:34:47,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 05:34:47,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:34:47,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 05:34:47,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 05:34:47,665 INFO L87 Difference]: Start difference. First operand 392 states and 586 transitions. Second operand has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-14 05:35:00,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:35:00,583 INFO L93 Difference]: Finished difference Result 794 states and 1215 transitions. [2024-11-14 05:35:00,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 05:35:00,585 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 76 [2024-11-14 05:35:00,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:35:00,592 INFO L225 Difference]: With dead ends: 794 [2024-11-14 05:35:00,592 INFO L226 Difference]: Without dead ends: 465 [2024-11-14 05:35:00,593 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 95.4s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 05:35:00,594 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 43 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 2649 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 2657 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:35:00,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 3562 Invalid, 2657 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2649 Invalid, 0 Unknown, 0 Unchecked, 12.6s Time] [2024-11-14 05:35:00,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2024-11-14 05:35:00,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 406. [2024-11-14 05:35:00,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 272 states have (on average 1.4338235294117647) internal successors, (390), 276 states have internal predecessors, (390), 108 states have call successors, (108), 25 states have call predecessors, (108), 25 states have return successors, (107), 106 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-14 05:35:00,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 605 transitions. [2024-11-14 05:35:00,721 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 605 transitions. Word has length 76 [2024-11-14 05:35:00,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:35:00,721 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 605 transitions. [2024-11-14 05:35:00,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2024-11-14 05:35:00,722 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 605 transitions. [2024-11-14 05:35:00,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 05:35:00,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:35:00,724 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] [2024-11-14 05:35:00,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 05:35:00,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:35:00,925 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:35:00,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:35:00,925 INFO L85 PathProgramCache]: Analyzing trace with hash 2143722004, now seen corresponding path program 1 times [2024-11-14 05:35:00,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:35:00,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194430904] [2024-11-14 05:35:00,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:00,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:35:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:35:01,139 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 05:35:01,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:35:01,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194430904] [2024-11-14 05:35:01,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194430904] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:35:01,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380158351] [2024-11-14 05:35:01,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:35:01,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:35:01,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:35:01,142 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:35:01,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 05:35:01,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:35:01,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:35:01,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:35:01,566 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 05:35:01,568 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:35:01,652 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 05:35:01,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380158351] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:35:01,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [659263887] [2024-11-14 05:35:01,655 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 05:35:01,656 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:35:01,656 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:35:01,656 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:35:01,656 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:36:03,989 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 05:36:04,093 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 483 for LOIs [2024-11-14 05:36:04,895 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 492 for LOIs [2024-11-14 05:36:05,785 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 428 for LOIs [2024-11-14 05:36:06,034 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 05:36:06,177 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:37:06,065 WARN L286 SmtUtils]: Spent 11.74s on a formula simplification. DAG size of input: 512 DAG size of output: 507 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:38:05,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [659263887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:38:05,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:38:05,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-14 05:38:05,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810600750] [2024-11-14 05:38:05,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:38:05,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 05:38:05,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:38:05,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 05:38:05,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 05:38:05,713 INFO L87 Difference]: Start difference. First operand 406 states and 605 transitions. Second operand has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-14 05:38:31,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:38:31,868 INFO L93 Difference]: Finished difference Result 819 states and 1250 transitions. [2024-11-14 05:38:31,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 05:38:31,869 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 79 [2024-11-14 05:38:31,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:38:31,874 INFO L225 Difference]: With dead ends: 819 [2024-11-14 05:38:31,874 INFO L226 Difference]: Without dead ends: 490 [2024-11-14 05:38:31,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 122.7s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 05:38:31,877 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 78 mSDsluCounter, 3781 mSDsCounter, 0 mSdLazyCounter, 3961 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 3990 SdHoareTripleChecker+Invalid, 3971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:38:31,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 3990 Invalid, 3971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3961 Invalid, 0 Unknown, 0 Unchecked, 22.6s Time] [2024-11-14 05:38:31,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-14 05:38:32,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 442. [2024-11-14 05:38:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 302 states have (on average 1.4304635761589404) internal successors, (432), 306 states have internal predecessors, (432), 111 states have call successors, (111), 28 states have call predecessors, (111), 28 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-14 05:38:32,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 653 transitions. [2024-11-14 05:38:32,062 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 653 transitions. Word has length 79 [2024-11-14 05:38:32,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:38:32,063 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 653 transitions. [2024-11-14 05:38:32,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.1052631578947367) internal successors, (40), 18 states have internal predecessors, (40), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2024-11-14 05:38:32,063 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 653 transitions. [2024-11-14 05:38:32,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 05:38:32,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:38:32,066 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] [2024-11-14 05:38:32,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 05:38:32,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 05:38:32,267 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:38:32,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:38:32,268 INFO L85 PathProgramCache]: Analyzing trace with hash 348934020, now seen corresponding path program 1 times [2024-11-14 05:38:32,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:38:32,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811628949] [2024-11-14 05:38:32,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:38:32,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:38:32,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:38:32,393 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 05:38:32,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:38:32,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811628949] [2024-11-14 05:38:32,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811628949] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:38:32,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788137141] [2024-11-14 05:38:32,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:38:32,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:38:32,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:38:32,396 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:38:32,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 05:38:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:38:32,763 INFO L255 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 05:38:32,765 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:38:32,798 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 05:38:32,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:38:32,883 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 05:38:32,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788137141] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:38:32,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [733334460] [2024-11-14 05:38:32,886 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-14 05:38:32,886 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:38:32,887 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:38:32,887 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:38:32,887 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:39:07,668 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 05:39:07,774 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 05:39:07,917 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:40:07,879 WARN L286 SmtUtils]: Spent 10.38s on a formula simplification. DAG size of input: 453 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:40:34,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [733334460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:34,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 05:40:34,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2024-11-14 05:40:34,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433108641] [2024-11-14 05:40:34,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:34,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-14 05:40:34,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:40:34,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-14 05:40:34,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=948, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 05:40:34,883 INFO L87 Difference]: Start difference. First operand 442 states and 653 transitions. Second operand has 28 states, 20 states have (on average 2.25) internal successors, (45), 19 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-14 05:40:55,950 WARN L286 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 460 DAG size of output: 454 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:41:09,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:41:09,868 INFO L93 Difference]: Finished difference Result 820 states and 1239 transitions. [2024-11-14 05:41:09,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 05:41:09,869 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 20 states have (on average 2.25) internal successors, (45), 19 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 78 [2024-11-14 05:41:09,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:41:09,873 INFO L225 Difference]: With dead ends: 820 [2024-11-14 05:41:09,873 INFO L226 Difference]: Without dead ends: 491 [2024-11-14 05:41:09,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 109.9s TimeCoverageRelationStatistics Valid=140, Invalid=1266, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 05:41:09,876 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 25 mSDsluCounter, 3356 mSDsCounter, 0 mSdLazyCounter, 2683 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3558 SdHoareTripleChecker+Invalid, 2694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:41:09,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3558 Invalid, 2694 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2683 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2024-11-14 05:41:09,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-14 05:41:10,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 462. [2024-11-14 05:41:10,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 322 states have (on average 1.434782608695652) internal successors, (462), 326 states have internal predecessors, (462), 111 states have call successors, (111), 28 states have call predecessors, (111), 28 states have return successors, (110), 109 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-14 05:41:10,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 683 transitions. [2024-11-14 05:41:10,094 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 683 transitions. Word has length 78 [2024-11-14 05:41:10,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:41:10,095 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 683 transitions. [2024-11-14 05:41:10,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 20 states have (on average 2.25) internal successors, (45), 19 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2024-11-14 05:41:10,096 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 683 transitions. [2024-11-14 05:41:10,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 05:41:10,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:41:10,098 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] [2024-11-14 05:41:10,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 05:41:10,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:41:10,299 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:41:10,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:41:10,299 INFO L85 PathProgramCache]: Analyzing trace with hash -618030350, now seen corresponding path program 1 times [2024-11-14 05:41:10,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:41:10,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388581675] [2024-11-14 05:41:10,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:10,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:41:10,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:41:10,564 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-14 05:41:10,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:41:10,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388581675] [2024-11-14 05:41:10,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388581675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:41:10,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:41:10,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:41:10,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781749544] [2024-11-14 05:41:10,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:41:10,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:41:10,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:41:10,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:41:10,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:41:10,567 INFO L87 Difference]: Start difference. First operand 462 states and 683 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-14 05:41:10,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:41:10,965 INFO L93 Difference]: Finished difference Result 602 states and 858 transitions. [2024-11-14 05:41:10,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:41:10,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 81 [2024-11-14 05:41:10,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:41:10,972 INFO L225 Difference]: With dead ends: 602 [2024-11-14 05:41:10,973 INFO L226 Difference]: Without dead ends: 504 [2024-11-14 05:41:10,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 05:41:10,975 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 142 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:41:10,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 324 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 05:41:10,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2024-11-14 05:41:11,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 503. [2024-11-14 05:41:11,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 503 states, 343 states have (on average 1.41399416909621) internal successors, (485), 349 states have internal predecessors, (485), 123 states have call successors, (123), 38 states have call predecessors, (123), 36 states have return successors, (121), 118 states have call predecessors, (121), 121 states have call successors, (121) [2024-11-14 05:41:11,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 503 states to 503 states and 729 transitions. [2024-11-14 05:41:11,240 INFO L78 Accepts]: Start accepts. Automaton has 503 states and 729 transitions. Word has length 81 [2024-11-14 05:41:11,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:41:11,241 INFO L471 AbstractCegarLoop]: Abstraction has 503 states and 729 transitions. [2024-11-14 05:41:11,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-14 05:41:11,241 INFO L276 IsEmpty]: Start isEmpty. Operand 503 states and 729 transitions. [2024-11-14 05:41:11,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-14 05:41:11,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:41:11,246 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:41:11,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 05:41:11,247 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:41:11,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:41:11,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1797976455, now seen corresponding path program 1 times [2024-11-14 05:41:11,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:41:11,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846641920] [2024-11-14 05:41:11,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:11,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:41:11,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:41:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-14 05:41:11,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:41:11,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846641920] [2024-11-14 05:41:11,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846641920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:41:11,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:41:11,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:41:11,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455556165] [2024-11-14 05:41:11,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:41:11,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:41:11,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:41:11,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:41:11,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:41:11,688 INFO L87 Difference]: Start difference. First operand 503 states and 729 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-14 05:41:12,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:41:12,736 INFO L93 Difference]: Finished difference Result 717 states and 1003 transitions. [2024-11-14 05:41:12,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 05:41:12,736 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 123 [2024-11-14 05:41:12,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:41:12,742 INFO L225 Difference]: With dead ends: 717 [2024-11-14 05:41:12,742 INFO L226 Difference]: Without dead ends: 607 [2024-11-14 05:41:12,744 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 05:41:12,745 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 221 mSDsluCounter, 310 mSDsCounter, 0 mSdLazyCounter, 373 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:41:12,745 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 490 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 373 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 05:41:12,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-14 05:41:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 588. [2024-11-14 05:41:12,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 388 states have (on average 1.3891752577319587) internal successors, (539), 400 states have internal predecessors, (539), 150 states have call successors, (150), 50 states have call predecessors, (150), 49 states have return successors, (150), 142 states have call predecessors, (150), 147 states have call successors, (150) [2024-11-14 05:41:13,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 839 transitions. [2024-11-14 05:41:13,002 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 839 transitions. Word has length 123 [2024-11-14 05:41:13,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:41:13,003 INFO L471 AbstractCegarLoop]: Abstraction has 588 states and 839 transitions. [2024-11-14 05:41:13,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (23), 3 states have call predecessors, (23), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2024-11-14 05:41:13,003 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 839 transitions. [2024-11-14 05:41:13,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-14 05:41:13,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:41:13,007 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:41:13,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 05:41:13,007 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:41:13,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:41:13,008 INFO L85 PathProgramCache]: Analyzing trace with hash 741892976, now seen corresponding path program 1 times [2024-11-14 05:41:13,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:41:13,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31006811] [2024-11-14 05:41:13,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:13,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:41:13,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:41:13,715 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-11-14 05:41:13,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:41:13,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31006811] [2024-11-14 05:41:13,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31006811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:41:13,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:41:13,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-14 05:41:13,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093233125] [2024-11-14 05:41:13,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:41:13,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-14 05:41:13,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:41:13,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-14 05:41:13,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-14 05:41:13,718 INFO L87 Difference]: Start difference. First operand 588 states and 839 transitions. Second operand has 11 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-14 05:41:15,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:41:15,400 INFO L93 Difference]: Finished difference Result 1210 states and 1693 transitions. [2024-11-14 05:41:15,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-14 05:41:15,402 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) Word has length 128 [2024-11-14 05:41:15,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:41:15,411 INFO L225 Difference]: With dead ends: 1210 [2024-11-14 05:41:15,411 INFO L226 Difference]: Without dead ends: 989 [2024-11-14 05:41:15,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-14 05:41:15,415 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 355 mSDsluCounter, 1257 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 1487 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:41:15,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 1487 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-14 05:41:15,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states. [2024-11-14 05:41:15,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 978. [2024-11-14 05:41:15,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 630 states have (on average 1.3968253968253967) internal successors, (880), 651 states have internal predecessors, (880), 261 states have call successors, (261), 88 states have call predecessors, (261), 86 states have return successors, (259), 247 states have call predecessors, (259), 255 states have call successors, (259) [2024-11-14 05:41:15,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1400 transitions. [2024-11-14 05:41:15,861 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1400 transitions. Word has length 128 [2024-11-14 05:41:15,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:41:15,862 INFO L471 AbstractCegarLoop]: Abstraction has 978 states and 1400 transitions. [2024-11-14 05:41:15,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.666666666666667) internal successors, (60), 8 states have internal predecessors, (60), 5 states have call successors, (26), 4 states have call predecessors, (26), 2 states have return successors, (23), 5 states have call predecessors, (23), 5 states have call successors, (23) [2024-11-14 05:41:15,863 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1400 transitions. [2024-11-14 05:41:15,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-14 05:41:15,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:41:15,870 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:41:15,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 05:41:15,871 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:41:15,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:41:15,871 INFO L85 PathProgramCache]: Analyzing trace with hash 475464290, now seen corresponding path program 1 times [2024-11-14 05:41:15,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:41:15,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640667143] [2024-11-14 05:41:15,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:15,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:41:15,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:41:17,292 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-14 05:41:17,292 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:41:17,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640667143] [2024-11-14 05:41:17,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640667143] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:41:17,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546742342] [2024-11-14 05:41:17,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:17,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:41:17,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:41:17,309 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:41:17,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b5a0413-0b4b-469a-9f65-de8e380dcdc7/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 05:41:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:41:17,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 05:41:17,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:41:18,078 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-14 05:41:18,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 05:41:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-14 05:41:18,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546742342] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 05:41:18,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [224360926] [2024-11-14 05:41:18,376 INFO L159 IcfgInterpreter]: Started Sifa with 91 locations of interest [2024-11-14 05:41:18,376 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 05:41:18,376 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 05:41:18,376 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 05:41:18,376 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 05:42:05,867 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 05:42:06,001 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2024-11-14 05:42:10,052 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 439 for LOIs [2024-11-14 05:42:11,428 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 291 for LOIs [2024-11-14 05:42:19,274 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 253 for LOIs [2024-11-14 05:42:32,455 INFO L197 IcfgInterpreter]: Interpreting procedure queue with input of size 227 for LOIs [2024-11-14 05:42:32,534 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 249 for LOIs [2024-11-14 05:42:32,703 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 220 for LOIs [2024-11-14 05:42:33,062 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 252 for LOIs [2024-11-14 05:42:33,861 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 318 for LOIs [2024-11-14 05:42:34,960 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 224 for LOIs [2024-11-14 05:42:35,613 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 292 for LOIs [2024-11-14 05:42:36,829 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 05:43:07,160 WARN L286 SmtUtils]: Spent 8.67s on a formula simplification. DAG size of input: 439 DAG size of output: 439 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:43:20,226 WARN L286 SmtUtils]: Spent 12.11s on a formula simplification. DAG size of input: 463 DAG size of output: 459 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:44:38,003 WARN L286 SmtUtils]: Spent 5.98s on a formula simplification. DAG size of input: 291 DAG size of output: 276 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:44:45,245 WARN L286 SmtUtils]: Spent 6.34s on a formula simplification. DAG size of input: 295 DAG size of output: 280 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 05:44:52,494 WARN L286 SmtUtils]: Spent 6.40s on a formula simplification. DAG size of input: 292 DAG size of output: 277 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)