./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_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_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/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_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/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_fb0c9e45-2d78-4015-90be-94d2ded2f260/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 1c7cb2243c6731bf722079adc6952447a998ab6b938202887231d0b533119871 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:42:03,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:42:03,902 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 02:42:03,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:42:03,911 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:42:03,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:42:03,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:42:03,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:42:03,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:42:03,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:42:03,942 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:42:03,942 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:42:03,942 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:42:03,942 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:42:03,942 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:42:03,943 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:42:03,943 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:42:03,943 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:42:03,943 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:42:03,944 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:42:03,944 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:42:03,944 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:42:03,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:42:03,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:42:03,945 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:42:03,945 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:42:03,945 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:42:03,945 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:42:03,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:42:03,946 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:42:03,946 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:42:03,946 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:42:03,946 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:42:03,946 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:42:03,946 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:42:03,946 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:42:03,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:42:03,948 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:42:03,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:42:03,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:42:03,948 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:42:03,948 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:42:03,948 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:42:03,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:42:03,948 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:42:03,949 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:42:03,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:42:03,949 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_fb0c9e45-2d78-4015-90be-94d2ded2f260/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 -> 1c7cb2243c6731bf722079adc6952447a998ab6b938202887231d0b533119871 [2024-11-14 02:42:04,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:42:04,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:42:04,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:42:04,307 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:42:04,308 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:42:04,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec1_product26.cil.c Unable to find full path for "g++" [2024-11-14 02:42:06,401 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:42:06,783 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:42:06,783 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c [2024-11-14 02:42:06,817 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/data/7e2331d25/9292c2f88fca45f4ab1d4fa4c7ead821/FLAG5752cd192 [2024-11-14 02:42:06,845 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/data/7e2331d25/9292c2f88fca45f4ab1d4fa4c7ead821 [2024-11-14 02:42:06,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:42:06,851 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:42:06,853 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:42:06,855 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:42:06,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:42:06,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:42:06" (1/1) ... [2024-11-14 02:42:06,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4198f131 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:06, skipping insertion in model container [2024-11-14 02:42:06,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:42:06" (1/1) ... [2024-11-14 02:42:06,946 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:42:07,484 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_fb0c9e45-2d78-4015-90be-94d2ded2f260/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c[21785,21798] [2024-11-14 02:42:07,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:42:07,710 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:42:07,721 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-14 02:42:07,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [392] [2024-11-14 02:42:07,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [504] [2024-11-14 02:42:07,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [855] [2024-11-14 02:42:07,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [890] [2024-11-14 02:42:07,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1112] [2024-11-14 02:42:07,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1121] [2024-11-14 02:42:07,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2181] [2024-11-14 02:42:07,725 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [2198] [2024-11-14 02:42:07,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2226] [2024-11-14 02:42:07,727 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2629] [2024-11-14 02:42:07,800 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_fb0c9e45-2d78-4015-90be-94d2ded2f260/sv-benchmarks/c/product-lines/email_spec1_product26.cil.c[21785,21798] [2024-11-14 02:42:07,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:42:07,949 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:42:07,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07 WrapperNode [2024-11-14 02:42:07,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:42:07,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:42:07,954 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:42:07,954 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:42:07,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07" (1/1) ... [2024-11-14 02:42:07,986 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07" (1/1) ... [2024-11-14 02:42:08,059 INFO L138 Inliner]: procedures = 131, calls = 205, calls flagged for inlining = 60, calls inlined = 57, statements flattened = 1097 [2024-11-14 02:42:08,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:42:08,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:42:08,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:42:08,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:42:08,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07" (1/1) ... [2024-11-14 02:42:08,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07" (1/1) ... [2024-11-14 02:42:08,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07" (1/1) ... [2024-11-14 02:42:08,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07" (1/1) ... [2024-11-14 02:42:08,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07" (1/1) ... [2024-11-14 02:42:08,132 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07" (1/1) ... [2024-11-14 02:42:08,136 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07" (1/1) ... [2024-11-14 02:42:08,140 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07" (1/1) ... [2024-11-14 02:42:08,147 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:42:08,148 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:42:08,148 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:42:08,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:42:08,149 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07" (1/1) ... [2024-11-14 02:42:08,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:42:08,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:42:08,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:42:08,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:42:08,259 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2024-11-14 02:42:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2024-11-14 02:42:08,260 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-14 02:42:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-14 02:42:08,260 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2024-11-14 02:42:08,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2024-11-14 02:42:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-14 02:42:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-14 02:42:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 02:42:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 02:42:08,261 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2024-11-14 02:42:08,261 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2024-11-14 02:42:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 02:42:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 02:42:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 02:42:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 02:42:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-14 02:42:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-14 02:42:08,263 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 02:42:08,263 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 02:42:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-14 02:42:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-14 02:42:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-14 02:42:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-14 02:42:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 02:42:08,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 02:42:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:42:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2024-11-14 02:42:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2024-11-14 02:42:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 02:42:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 02:42:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 02:42:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 02:42:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 02:42:08,267 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 02:42:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 02:42:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 02:42:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-14 02:42:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-14 02:42:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 02:42:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 02:42:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 02:42:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 02:42:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:42:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 02:42:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 02:42:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2024-11-14 02:42:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2024-11-14 02:42:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:42:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:42:08,544 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:42:08,549 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:42:10,022 INFO L? ?]: Removed 543 outVars from TransFormulas that were not future-live. [2024-11-14 02:42:10,023 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:42:10,877 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:42:10,877 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:42:10,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:42:10 BoogieIcfgContainer [2024-11-14 02:42:10,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:42:10,882 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:42:10,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:42:10,888 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:42:10,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:42:06" (1/3) ... [2024-11-14 02:42:10,889 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cb06d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:42:10, skipping insertion in model container [2024-11-14 02:42:10,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:42:07" (2/3) ... [2024-11-14 02:42:10,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cb06d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:42:10, skipping insertion in model container [2024-11-14 02:42:10,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:42:10" (3/3) ... [2024-11-14 02:42:10,891 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product26.cil.c [2024-11-14 02:42:10,911 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:42:10,914 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec1_product26.cil.c that has 24 procedures, 200 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:42:10,987 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:42:11,005 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;@4758ae46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:42:11,006 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:42:11,013 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 02:42:11,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 02:42:11,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:11,030 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 02:42:11,030 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:42:11,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:11,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1432671502, now seen corresponding path program 1 times [2024-11-14 02:42:11,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:11,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684153609] [2024-11-14 02:42:11,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:11,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:11,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:11,475 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:42:11,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:11,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684153609] [2024-11-14 02:42:11,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684153609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:11,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:11,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:42:11,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207173433] [2024-11-14 02:42:11,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:11,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 02:42:11,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:11,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 02:42:11,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 02:42:11,512 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 02:42:11,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:11,723 INFO L93 Difference]: Finished difference Result 308 states and 417 transitions. [2024-11-14 02:42:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 02:42:11,729 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 02:42:11,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:11,743 INFO L225 Difference]: With dead ends: 308 [2024-11-14 02:42:11,744 INFO L226 Difference]: Without dead ends: 197 [2024-11-14 02:42:11,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 02:42:11,755 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:11,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 230 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:42:11,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-14 02:42:11,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2024-11-14 02:42:11,822 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 02:42:11,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 266 transitions. [2024-11-14 02:42:11,836 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 266 transitions. Word has length 63 [2024-11-14 02:42:11,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:11,837 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 266 transitions. [2024-11-14 02:42:11,838 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 02:42:11,838 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 266 transitions. [2024-11-14 02:42:11,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 02:42:11,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:11,844 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 02:42:11,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:42:11,845 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:42:11,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:11,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1113714013, now seen corresponding path program 1 times [2024-11-14 02:42:11,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:11,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542762641] [2024-11-14 02:42:11,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:11,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:12,274 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:42:12,275 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:12,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542762641] [2024-11-14 02:42:12,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542762641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:12,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:12,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:12,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117226944] [2024-11-14 02:42:12,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:12,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:12,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:12,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:12,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:12,280 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 02:42:12,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:12,497 INFO L93 Difference]: Finished difference Result 304 states and 402 transitions. [2024-11-14 02:42:12,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:12,499 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 02:42:12,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:12,502 INFO L225 Difference]: With dead ends: 304 [2024-11-14 02:42:12,504 INFO L226 Difference]: Without dead ends: 199 [2024-11-14 02:42:12,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:12,510 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 02:42:12,510 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 02:42:12,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-14 02:42:12,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2024-11-14 02:42:12,533 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 02:42:12,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 268 transitions. [2024-11-14 02:42:12,540 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 268 transitions. Word has length 64 [2024-11-14 02:42:12,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:12,541 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 268 transitions. [2024-11-14 02:42:12,542 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 02:42:12,542 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 268 transitions. [2024-11-14 02:42:12,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 02:42:12,547 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:12,547 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 02:42:12,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 02:42:12,549 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:42:12,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:12,550 INFO L85 PathProgramCache]: Analyzing trace with hash 2135859069, now seen corresponding path program 1 times [2024-11-14 02:42:12,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:12,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439976781] [2024-11-14 02:42:12,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:12,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:12,751 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:42:12,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:12,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439976781] [2024-11-14 02:42:12,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439976781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:42:12,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:42:12,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:42:12,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970544755] [2024-11-14 02:42:12,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:42:12,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:42:12,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:42:12,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:42:12,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:12,758 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 02:42:12,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:42:12,967 INFO L93 Difference]: Finished difference Result 433 states and 603 transitions. [2024-11-14 02:42:12,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:42:12,969 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 02:42:12,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:42:12,971 INFO L225 Difference]: With dead ends: 433 [2024-11-14 02:42:12,971 INFO L226 Difference]: Without dead ends: 252 [2024-11-14 02:42:12,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:42:12,977 INFO L432 NwaCegarLoop]: 241 mSDtfsCounter, 59 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:42:12,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 463 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:42:12,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-14 02:42:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 247. [2024-11-14 02:42:12,996 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 02:42:12,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 351 transitions. [2024-11-14 02:42:12,999 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 351 transitions. Word has length 69 [2024-11-14 02:42:12,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:42:12,999 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 351 transitions. [2024-11-14 02:42:13,000 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 02:42:13,000 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 351 transitions. [2024-11-14 02:42:13,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 02:42:13,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:42:13,002 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 02:42:13,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 02:42:13,002 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:42:13,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:42:13,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1385850800, now seen corresponding path program 1 times [2024-11-14 02:42:13,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:42:13,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842211893] [2024-11-14 02:42:13,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:13,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:42:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:13,303 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:42:13,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:42:13,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842211893] [2024-11-14 02:42:13,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842211893] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:42:13,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887225612] [2024-11-14 02:42:13,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:42:13,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:42:13,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:42:13,308 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:42:13,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 02:42:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:42:13,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:42:13,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:42:13,856 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:42:13,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:42:13,984 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:42:13,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887225612] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:42:13,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [51618989] [2024-11-14 02:42:14,015 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2024-11-14 02:42:14,015 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:42:14,019 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:42:14,024 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:42:14,025 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:42:41,772 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 02:42:41,914 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-14 02:42:42,102 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:43:37,931 WARN L286 SmtUtils]: Spent 9.62s on a formula simplification. DAG size of input: 445 DAG size of output: 445 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:43:48,560 WARN L286 SmtUtils]: Spent 9.67s on a formula simplification. DAG size of input: 446 DAG size of output: 445 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:43:59,346 WARN L286 SmtUtils]: Spent 9.47s on a formula simplification. DAG size of input: 450 DAG size of output: 449 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:44:04,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [51618989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:04,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:44:04,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 02:44:04,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237999755] [2024-11-14 02:44:04,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:04,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 02:44:04,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:04,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 02:44:04,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 02:44:04,160 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 02:44:12,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:12,393 INFO L93 Difference]: Finished difference Result 509 states and 740 transitions. [2024-11-14 02:44:12,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 02:44:12,394 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 02:44:12,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:12,398 INFO L225 Difference]: With dead ends: 509 [2024-11-14 02:44:12,399 INFO L226 Difference]: Without dead ends: 280 [2024-11-14 02:44:12,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 185 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 82.1s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 02:44:12,401 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 26 mSDsluCounter, 2792 mSDsCounter, 0 mSdLazyCounter, 1852 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 3000 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1852 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:44:12,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 3000 Invalid, 1861 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1852 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2024-11-14 02:44:12,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-11-14 02:44:12,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 270. [2024-11-14 02:44:12,475 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 02:44:12,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 384 transitions. [2024-11-14 02:44:12,478 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 384 transitions. Word has length 70 [2024-11-14 02:44:12,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:12,479 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 384 transitions. [2024-11-14 02:44:12,479 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 02:44:12,479 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 384 transitions. [2024-11-14 02:44:12,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 02:44:12,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:12,481 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 02:44:12,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 02:44:12,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:12,682 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:44:12,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:12,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1732889282, now seen corresponding path program 1 times [2024-11-14 02:44:12,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:12,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370041195] [2024-11-14 02:44:12,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:12,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:12,819 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 02:44:12,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:12,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370041195] [2024-11-14 02:44:12,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370041195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:44:12,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:44:12,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:44:12,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965184941] [2024-11-14 02:44:12,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:44:12,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:44:12,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:44:12,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:44:12,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:44:12,822 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 02:44:13,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:44:13,036 INFO L93 Difference]: Finished difference Result 643 states and 948 transitions. [2024-11-14 02:44:13,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:44:13,037 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 02:44:13,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:44:13,040 INFO L225 Difference]: With dead ends: 643 [2024-11-14 02:44:13,040 INFO L226 Difference]: Without dead ends: 397 [2024-11-14 02:44:13,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:44:13,042 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 57 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 463 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 02:44:13,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 463 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:44:13,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2024-11-14 02:44:13,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 392. [2024-11-14 02:44:13,149 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 02:44:13,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 586 transitions. [2024-11-14 02:44:13,154 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 586 transitions. Word has length 75 [2024-11-14 02:44:13,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:44:13,155 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 586 transitions. [2024-11-14 02:44:13,155 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 02:44:13,155 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 586 transitions. [2024-11-14 02:44:13,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 02:44:13,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:44:13,159 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 02:44:13,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 02:44:13,159 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:44:13,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:44:13,160 INFO L85 PathProgramCache]: Analyzing trace with hash 927902900, now seen corresponding path program 1 times [2024-11-14 02:44:13,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:44:13,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733714187] [2024-11-14 02:44:13,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:13,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:44:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 02:44:13,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:44:13,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733714187] [2024-11-14 02:44:13,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733714187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:44:13,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217531293] [2024-11-14 02:44:13,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:44:13,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:44:13,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:44:13,360 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:44:13,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 02:44:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:44:13,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:44:13,720 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:44:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 02:44:13,746 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:44:13,828 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 02:44:13,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [217531293] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:44:13,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [108364891] [2024-11-14 02:44:13,833 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-14 02:44:13,833 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:44:13,833 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:44:13,833 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:44:13,833 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:44:48,146 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 02:44:48,271 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 429 for LOIs [2024-11-14 02:44:49,629 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:45:11,462 WARN L286 SmtUtils]: Spent 7.04s on a formula simplification. DAG size of input: 429 DAG size of output: 429 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:45:21,617 WARN L286 SmtUtils]: Spent 9.80s on a formula simplification. DAG size of input: 453 DAG size of output: 449 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:45:59,537 WARN L286 SmtUtils]: Spent 9.43s on a formula simplification. DAG size of input: 446 DAG size of output: 446 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:46:10,844 WARN L286 SmtUtils]: Spent 10.04s on a formula simplification. DAG size of input: 447 DAG size of output: 446 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:46:22,538 WARN L286 SmtUtils]: Spent 10.25s on a formula simplification. DAG size of input: 451 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:46:36,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [108364891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:46:36,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:46:36,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 02:46:36,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946720029] [2024-11-14 02:46:36,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:46:36,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 02:46:36,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:46:36,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 02:46:36,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=890, Unknown=0, NotChecked=0, Total=992 [2024-11-14 02:46:36,413 INFO L87 Difference]: Start difference. First operand 392 states and 586 transitions. Second operand has 27 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 17 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 02:47:03,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:47:03,194 INFO L93 Difference]: Finished difference Result 796 states and 1217 transitions. [2024-11-14 02:47:03,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 02:47:03,195 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 17 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 02:47:03,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:47:03,199 INFO L225 Difference]: With dead ends: 796 [2024-11-14 02:47:03,199 INFO L226 Difference]: Without dead ends: 467 [2024-11-14 02:47:03,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 118.8s TimeCoverageRelationStatistics Valid=125, Invalid=1065, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 02:47:03,201 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 68 mSDsluCounter, 3258 mSDsCounter, 0 mSdLazyCounter, 2717 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 3471 SdHoareTripleChecker+Invalid, 2729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2024-11-14 02:47:03,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 3471 Invalid, 2729 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 2717 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2024-11-14 02:47:03,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-14 02:47:03,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 406. [2024-11-14 02:47:03,326 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 02:47:03,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 605 transitions. [2024-11-14 02:47:03,334 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 605 transitions. Word has length 76 [2024-11-14 02:47:03,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:47:03,335 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 605 transitions. [2024-11-14 02:47:03,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 17 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 02:47:03,335 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 605 transitions. [2024-11-14 02:47:03,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 02:47:03,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:47:03,340 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 02:47:03,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 02:47:03,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 02:47:03,541 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:47:03,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:47:03,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1336420363, now seen corresponding path program 1 times [2024-11-14 02:47:03,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:47:03,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142924742] [2024-11-14 02:47:03,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:47:03,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:47:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:47:03,750 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:47:03,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:47:03,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142924742] [2024-11-14 02:47:03,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142924742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:47:03,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1703094361] [2024-11-14 02:47:03,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:47:03,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:47:03,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:47:03,754 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:47:03,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 02:47:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:47:04,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:47:04,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:47:04,234 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:47:04,234 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:47:04,319 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:47:04,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1703094361] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:47:04,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1028444538] [2024-11-14 02:47:04,323 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 02:47:04,323 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:47:04,323 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:47:04,323 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:47:04,323 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:47:52,468 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 02:47:52,588 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 475 for LOIs [2024-11-14 02:47:53,393 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 484 for LOIs [2024-11-14 02:47:54,308 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 420 for LOIs [2024-11-14 02:47:54,555 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-14 02:47:54,664 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:48:56,384 WARN L286 SmtUtils]: Spent 12.55s on a formula simplification. DAG size of input: 504 DAG size of output: 499 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:49:08,908 WARN L286 SmtUtils]: Spent 11.65s on a formula simplification. DAG size of input: 505 DAG size of output: 499 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:50:04,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1028444538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:50:04,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:50:04,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-14 02:50:04,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569153720] [2024-11-14 02:50:04,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:50:04,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 02:50:04,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:50:04,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 02:50:04,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 02:50:04,636 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 02:50:26,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:50:26,214 INFO L93 Difference]: Finished difference Result 819 states and 1250 transitions. [2024-11-14 02:50:26,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 02:50:26,215 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 02:50:26,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:50:26,219 INFO L225 Difference]: With dead ends: 819 [2024-11-14 02:50:26,219 INFO L226 Difference]: Without dead ends: 490 [2024-11-14 02:50:26,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 130.0s TimeCoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 02:50:26,221 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 78 mSDsluCounter, 3776 mSDsCounter, 0 mSdLazyCounter, 3667 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 3676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:50:26,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 3983 Invalid, 3676 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3667 Invalid, 0 Unknown, 0 Unchecked, 21.2s Time] [2024-11-14 02:50:26,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-14 02:50:26,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 442. [2024-11-14 02:50:26,367 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 02:50:26,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 653 transitions. [2024-11-14 02:50:26,371 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 653 transitions. Word has length 79 [2024-11-14 02:50:26,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:50:26,372 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 653 transitions. [2024-11-14 02:50:26,372 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 02:50:26,372 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 653 transitions. [2024-11-14 02:50:26,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-14 02:50:26,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:50:26,375 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 02:50:26,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 02:50:26,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 02:50:26,575 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:50:26,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:50:26,576 INFO L85 PathProgramCache]: Analyzing trace with hash 313515756, now seen corresponding path program 1 times [2024-11-14 02:50:26,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:50:26,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788505283] [2024-11-14 02:50:26,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:26,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:50:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:26,718 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:50:26,718 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:50:26,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788505283] [2024-11-14 02:50:26,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788505283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:50:26,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790655733] [2024-11-14 02:50:26,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:50:26,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:50:26,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:50:26,721 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:50:26,725 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 02:50:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:50:27,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:50:27,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:50:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:50:27,163 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:50:27,257 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:50:27,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790655733] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:50:27,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [790756980] [2024-11-14 02:50:27,260 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2024-11-14 02:50:27,261 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:50:27,262 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:50:27,262 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:50:27,262 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:50:58,731 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 02:50:58,848 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-14 02:50:58,957 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:51:58,848 WARN L286 SmtUtils]: Spent 10.60s on a formula simplification. DAG size of input: 445 DAG size of output: 445 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:52:10,624 WARN L286 SmtUtils]: Spent 10.57s on a formula simplification. DAG size of input: 446 DAG size of output: 445 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:52:22,282 WARN L286 SmtUtils]: Spent 10.44s on a formula simplification. DAG size of input: 450 DAG size of output: 449 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:52:36,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [790756980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:52:36,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:52:36,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2024-11-14 02:52:36,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698766531] [2024-11-14 02:52:36,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:52:36,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-14 02:52:36,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:52:36,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-14 02:52:36,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=949, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 02:52:36,359 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 02:52:44,750 WARN L286 SmtUtils]: Spent 5.63s on a formula simplification. DAG size of input: 457 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:52:51,299 WARN L286 SmtUtils]: Spent 5.61s on a formula simplification. DAG size of input: 457 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:52:58,080 WARN L286 SmtUtils]: Spent 5.81s on a formula simplification. DAG size of input: 457 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:53:04,935 WARN L286 SmtUtils]: Spent 5.76s on a formula simplification. DAG size of input: 457 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:53:16,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:53:16,819 INFO L93 Difference]: Finished difference Result 820 states and 1239 transitions. [2024-11-14 02:53:16,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 02:53:16,820 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 02:53:16,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:53:16,824 INFO L225 Difference]: With dead ends: 820 [2024-11-14 02:53:16,824 INFO L226 Difference]: Without dead ends: 491 [2024-11-14 02:53:16,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 125.8s TimeCoverageRelationStatistics Valid=142, Invalid=1264, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 02:53:16,826 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 27 mSDsluCounter, 3532 mSDsCounter, 0 mSdLazyCounter, 2747 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 3734 SdHoareTripleChecker+Invalid, 2756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-11-14 02:53:16,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 3734 Invalid, 2756 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2747 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2024-11-14 02:53:16,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2024-11-14 02:53:16,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 462. [2024-11-14 02:53:16,995 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 02:53:16,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 683 transitions. [2024-11-14 02:53:16,999 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 683 transitions. Word has length 78 [2024-11-14 02:53:17,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:53:17,000 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 683 transitions. [2024-11-14 02:53:17,000 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 02:53:17,000 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 683 transitions. [2024-11-14 02:53:17,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 02:53:17,003 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:53:17,003 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 02:53:17,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 02:53:17,203 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 02:53:17,204 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:53:17,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:53:17,205 INFO L85 PathProgramCache]: Analyzing trace with hash -588900085, now seen corresponding path program 1 times [2024-11-14 02:53:17,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:53:17,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62949208] [2024-11-14 02:53:17,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:53:17,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:53:17,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:53:17,372 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 02:53:17,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:53:17,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62949208] [2024-11-14 02:53:17,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62949208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:53:17,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886937012] [2024-11-14 02:53:17,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:53:17,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:53:17,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:53:17,375 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:53:17,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 02:53:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:53:17,809 INFO L255 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 02:53:17,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:53:17,851 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 02:53:17,851 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:53:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 02:53:17,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886937012] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:53:17,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [133873118] [2024-11-14 02:53:17,953 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-14 02:53:17,954 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:53:17,954 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:53:17,954 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:53:17,954 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:53:48,960 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 02:53:49,081 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-14 02:53:50,368 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:54:13,086 WARN L286 SmtUtils]: Spent 7.06s on a formula simplification. DAG size of input: 431 DAG size of output: 432 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:54:23,656 WARN L286 SmtUtils]: Spent 10.12s on a formula simplification. DAG size of input: 455 DAG size of output: 451 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 02:55:13,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [133873118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:55:13,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:55:13,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [5, 5, 5] total 32 [2024-11-14 02:55:13,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968191281] [2024-11-14 02:55:13,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:55:13,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 02:55:13,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:55:13,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 02:55:13,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=895, Unknown=0, NotChecked=0, Total=992 [2024-11-14 02:55:13,793 INFO L87 Difference]: Start difference. First operand 462 states and 683 transitions. Second operand has 27 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 17 states have internal predecessors, (41), 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 02:55:33,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:55:33,329 INFO L93 Difference]: Finished difference Result 908 states and 1379 transitions. [2024-11-14 02:55:33,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-14 02:55:33,330 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 17 states have internal predecessors, (41), 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 81 [2024-11-14 02:55:33,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:55:33,334 INFO L225 Difference]: With dead ends: 908 [2024-11-14 02:55:33,334 INFO L226 Difference]: Without dead ends: 539 [2024-11-14 02:55:33,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 214 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 88.7s TimeCoverageRelationStatistics Valid=120, Invalid=1070, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 02:55:33,337 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 77 mSDsluCounter, 3156 mSDsCounter, 0 mSdLazyCounter, 2974 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 3391 SdHoareTripleChecker+Invalid, 2994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-14 02:55:33,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 3391 Invalid, 2994 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 2974 Invalid, 0 Unknown, 0 Unchecked, 13.9s Time] [2024-11-14 02:55:33,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-11-14 02:55:33,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 480. [2024-11-14 02:55:33,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 337 states have (on average 1.4302670623145401) internal successors, (482), 342 states have internal predecessors, (482), 113 states have call successors, (113), 29 states have call predecessors, (113), 29 states have return successors, (112), 110 states have call predecessors, (112), 112 states have call successors, (112) [2024-11-14 02:55:33,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 707 transitions. [2024-11-14 02:55:33,546 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 707 transitions. Word has length 81 [2024-11-14 02:55:33,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:55:33,547 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 707 transitions. [2024-11-14 02:55:33,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 2.2777777777777777) internal successors, (41), 17 states have internal predecessors, (41), 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 02:55:33,547 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 707 transitions. [2024-11-14 02:55:33,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 02:55:33,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:55:33,551 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:55:33,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 02:55:33,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:55:33,752 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:55:33,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:55:33,752 INFO L85 PathProgramCache]: Analyzing trace with hash -740584475, now seen corresponding path program 1 times [2024-11-14 02:55:33,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:55:33,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14242300] [2024-11-14 02:55:33,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:55:33,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:55:33,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:55:33,976 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:55:33,976 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:55:33,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14242300] [2024-11-14 02:55:33,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14242300] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:55:33,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602748169] [2024-11-14 02:55:33,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:55:33,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:55:33,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:55:33,979 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:55:33,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb0c9e45-2d78-4015-90be-94d2ded2f260/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 02:55:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:55:34,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 956 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 02:55:34,476 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:55:34,516 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:55:34,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:55:34,627 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 02:55:34,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602748169] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:55:34,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1728421261] [2024-11-14 02:55:34,630 INFO L159 IcfgInterpreter]: Started Sifa with 70 locations of interest [2024-11-14 02:55:34,634 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:55:34,635 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:55:34,635 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:55:34,635 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs