./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product31.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_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/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_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/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_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/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 28cb2c1915c61c386f3394fd53d16960f7cb856128220666f501d4f4a00b7894 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:53:24,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:53:24,181 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:53:24,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:53:24,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:53:24,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:53:24,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:53:24,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:53:24,218 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:53:24,218 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:53:24,218 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:53:24,219 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:53:24,219 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:53:24,219 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:53:24,219 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:53:24,219 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:53:24,219 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:53:24,220 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:53:24,220 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:53:24,220 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:53:24,220 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:53:24,221 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:53:24,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:53:24,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:53:24,221 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:53:24,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:53:24,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:53:24,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:53:24,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:53:24,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:53:24,223 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:53:24,223 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:53:24,223 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:53:24,223 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:53:24,223 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:53:24,224 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:53:24,224 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:53:24,224 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:53:24,224 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:53:24,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:53:24,225 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:53:24,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:53:24,225 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:53:24,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:53:24,225 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:53:24,225 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:53:24,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:53:24,226 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_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/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 -> 28cb2c1915c61c386f3394fd53d16960f7cb856128220666f501d4f4a00b7894 [2024-11-14 03:53:24,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:53:24,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:53:24,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:53:24,579 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:53:24,579 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:53:24,583 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec9_product31.cil.c Unable to find full path for "g++" [2024-11-14 03:53:27,024 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:53:27,608 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:53:27,609 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/sv-benchmarks/c/product-lines/email_spec9_product31.cil.c [2024-11-14 03:53:27,647 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/data/1cc8e0791/2ae7af67fc7b4dbdad29d16f05838910/FLAG6f47570c8 [2024-11-14 03:53:27,672 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/data/1cc8e0791/2ae7af67fc7b4dbdad29d16f05838910 [2024-11-14 03:53:27,675 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:53:27,678 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:53:27,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:53:27,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:53:27,693 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:53:27,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:53:27" (1/1) ... [2024-11-14 03:53:27,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@755252e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:27, skipping insertion in model container [2024-11-14 03:53:27,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:53:27" (1/1) ... [2024-11-14 03:53:27,793 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:53:28,490 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_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/sv-benchmarks/c/product-lines/email_spec9_product31.cil.c[56976,56989] [2024-11-14 03:53:28,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:53:28,556 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:53:28,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-14 03:53:28,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [66] [2024-11-14 03:53:28,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [115] [2024-11-14 03:53:28,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [527] [2024-11-14 03:53:28,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [752] [2024-11-14 03:53:28,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1118] [2024-11-14 03:53:28,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2198] [2024-11-14 03:53:28,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2565] [2024-11-14 03:53:28,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2574] [2024-11-14 03:53:28,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [2849] [2024-11-14 03:53:28,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2891] [2024-11-14 03:53:28,751 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_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/sv-benchmarks/c/product-lines/email_spec9_product31.cil.c[56976,56989] [2024-11-14 03:53:28,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:53:28,818 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:53:28,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28 WrapperNode [2024-11-14 03:53:28,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:53:28,820 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:53:28,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:53:28,821 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:53:28,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28" (1/1) ... [2024-11-14 03:53:28,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28" (1/1) ... [2024-11-14 03:53:28,946 INFO L138 Inliner]: procedures = 132, calls = 207, calls flagged for inlining = 62, calls inlined = 57, statements flattened = 1042 [2024-11-14 03:53:28,946 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:53:28,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:53:28,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:53:28,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:53:28,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28" (1/1) ... [2024-11-14 03:53:28,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28" (1/1) ... [2024-11-14 03:53:28,973 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28" (1/1) ... [2024-11-14 03:53:28,973 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28" (1/1) ... [2024-11-14 03:53:29,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28" (1/1) ... [2024-11-14 03:53:29,038 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28" (1/1) ... [2024-11-14 03:53:29,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28" (1/1) ... [2024-11-14 03:53:29,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28" (1/1) ... [2024-11-14 03:53:29,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:53:29,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:53:29,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:53:29,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:53:29,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28" (1/1) ... [2024-11-14 03:53:29,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:53:29,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:29,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:53:29,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:53:29,210 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-14 03:53:29,212 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-14 03:53:29,212 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-14 03:53:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-14 03:53:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-14 03:53:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-14 03:53:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 03:53:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 03:53:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 03:53:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 03:53:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-14 03:53:29,213 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-14 03:53:29,213 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 03:53:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 03:53:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-14 03:53:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-14 03:53:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-14 03:53:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-14 03:53:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 03:53:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 03:53:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-14 03:53:29,214 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-14 03:53:29,214 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 03:53:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 03:53:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:53:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-14 03:53:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-14 03:53:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-14 03:53:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-14 03:53:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 03:53:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 03:53:29,215 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 03:53:29,215 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 03:53:29,219 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 03:53:29,219 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 03:53:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-14 03:53:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-14 03:53:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 03:53:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 03:53:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-14 03:53:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-14 03:53:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 03:53:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 03:53:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 03:53:29,220 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 03:53:29,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:53:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 03:53:29,221 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 03:53:29,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:53:29,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:53:29,591 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:53:29,594 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:53:31,302 INFO L? ?]: Removed 479 outVars from TransFormulas that were not future-live. [2024-11-14 03:53:31,303 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:53:32,220 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:53:32,221 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:53:32,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:32 BoogieIcfgContainer [2024-11-14 03:53:32,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:53:32,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:53:32,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:53:32,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:53:32,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:53:27" (1/3) ... [2024-11-14 03:53:32,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66132ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:53:32, skipping insertion in model container [2024-11-14 03:53:32,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:53:28" (2/3) ... [2024-11-14 03:53:32,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66132ecf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:53:32, skipping insertion in model container [2024-11-14 03:53:32,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:53:32" (3/3) ... [2024-11-14 03:53:32,233 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product31.cil.c [2024-11-14 03:53:32,256 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:53:32,259 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec9_product31.cil.c that has 24 procedures, 201 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:53:32,336 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:53:32,352 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;@68801d38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:53:32,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:53:32,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-14 03:53:32,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 03:53:32,371 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:32,372 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 03:53:32,372 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:53:32,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:32,379 INFO L85 PathProgramCache]: Analyzing trace with hash 148971189, now seen corresponding path program 1 times [2024-11-14 03:53:32,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:32,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797576510] [2024-11-14 03:53:32,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:32,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:32,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:32,906 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 03:53:32,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:32,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797576510] [2024-11-14 03:53:32,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797576510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:32,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:32,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:53:32,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654562857] [2024-11-14 03:53:32,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:32,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:53:32,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:32,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:53:32,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:53:32,975 INFO L87 Difference]: Start difference. First operand has 201 states, 117 states have (on average 1.3162393162393162) internal successors, (154), 121 states have internal predecessors, (154), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-14 03:53:33,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:33,210 INFO L93 Difference]: Finished difference Result 319 states and 422 transitions. [2024-11-14 03:53:33,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:53:33,213 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 64 [2024-11-14 03:53:33,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:33,233 INFO L225 Difference]: With dead ends: 319 [2024-11-14 03:53:33,233 INFO L226 Difference]: Without dead ends: 198 [2024-11-14 03:53:33,243 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 03:53:33,248 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:33,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:53:33,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-14 03:53:33,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2024-11-14 03:53:33,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 115 states have (on average 1.2869565217391303) internal successors, (148), 118 states have internal predecessors, (148), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-14 03:53:33,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2024-11-14 03:53:33,331 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 64 [2024-11-14 03:53:33,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:33,336 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2024-11-14 03:53:33,337 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-14 03:53:33,337 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2024-11-14 03:53:33,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 03:53:33,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:33,342 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:53:33,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:53:33,342 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:53:33,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:33,345 INFO L85 PathProgramCache]: Analyzing trace with hash 2127708470, now seen corresponding path program 1 times [2024-11-14 03:53:33,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:33,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956585145] [2024-11-14 03:53:33,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:33,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:33,766 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 03:53:33,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:33,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956585145] [2024-11-14 03:53:33,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956585145] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:33,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:33,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:53:33,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938844019] [2024-11-14 03:53:33,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:33,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:53:33,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:33,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:53:33,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:33,771 INFO L87 Difference]: Start difference. First operand 198 states and 265 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-14 03:53:33,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:33,954 INFO L93 Difference]: Finished difference Result 315 states and 410 transitions. [2024-11-14 03:53:33,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:53:33,956 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2024-11-14 03:53:33,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:33,959 INFO L225 Difference]: With dead ends: 315 [2024-11-14 03:53:33,959 INFO L226 Difference]: Without dead ends: 200 [2024-11-14 03:53:33,962 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 03:53:33,963 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 0 mSDsluCounter, 227 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:33,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 455 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:53:33,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-14 03:53:34,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2024-11-14 03:53:34,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 117 states have (on average 1.2820512820512822) internal successors, (150), 120 states have internal predecessors, (150), 59 states have call successors, (59), 23 states have call predecessors, (59), 23 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2024-11-14 03:53:34,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2024-11-14 03:53:34,008 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 65 [2024-11-14 03:53:34,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:34,009 INFO L471 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2024-11-14 03:53:34,009 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-14 03:53:34,009 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2024-11-14 03:53:34,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 03:53:34,014 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:34,014 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 03:53:34,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:53:34,015 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:53:34,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:34,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1308006889, now seen corresponding path program 1 times [2024-11-14 03:53:34,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:34,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702600262] [2024-11-14 03:53:34,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:34,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:34,332 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 03:53:34,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:34,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702600262] [2024-11-14 03:53:34,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702600262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:53:34,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:53:34,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:53:34,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816159526] [2024-11-14 03:53:34,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:53:34,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:53:34,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:53:34,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:53:34,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:53:34,336 INFO L87 Difference]: Start difference. First operand 200 states and 267 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-14 03:53:34,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:53:34,542 INFO L93 Difference]: Finished difference Result 430 states and 593 transitions. [2024-11-14 03:53:34,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:53:34,543 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 70 [2024-11-14 03:53:34,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:53:34,547 INFO L225 Difference]: With dead ends: 430 [2024-11-14 03:53:34,547 INFO L226 Difference]: Without dead ends: 248 [2024-11-14 03:53:34,548 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 03:53:34,550 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 57 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:53:34,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 458 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:53:34,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-14 03:53:34,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 243. [2024-11-14 03:53:34,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 149 states have (on average 1.3624161073825503) internal successors, (203), 152 states have internal predecessors, (203), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-14 03:53:34,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 342 transitions. [2024-11-14 03:53:34,607 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 342 transitions. Word has length 70 [2024-11-14 03:53:34,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:53:34,608 INFO L471 AbstractCegarLoop]: Abstraction has 243 states and 342 transitions. [2024-11-14 03:53:34,608 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, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-14 03:53:34,608 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 342 transitions. [2024-11-14 03:53:34,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 03:53:34,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:53:34,614 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] [2024-11-14 03:53:34,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:53:34,614 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:53:34,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:53:34,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1529739809, now seen corresponding path program 1 times [2024-11-14 03:53:34,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:53:34,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794339929] [2024-11-14 03:53:34,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:34,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:53:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:35,015 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:53:35,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:53:35,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794339929] [2024-11-14 03:53:35,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794339929] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:53:35,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976580441] [2024-11-14 03:53:35,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:53:35,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:53:35,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:53:35,020 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:53:35,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:53:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:53:35,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:53:35,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:53:35,681 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 03:53:35,681 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:53:35,867 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 03:53:35,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976580441] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:53:35,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1084837490] [2024-11-14 03:53:35,898 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-14 03:53:35,899 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:53:35,902 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:53:35,908 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:53:35,909 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:54:07,150 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 03:54:07,309 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2024-11-14 03:54:07,445 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:55:18,815 WARN L286 SmtUtils]: Spent 11.10s on a formula simplification. DAG size of input: 467 DAG size of output: 467 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:55:33,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1084837490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:55:33,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:55:33,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 03:55:33,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915375724] [2024-11-14 03:55:33,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:55:33,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:55:33,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:55:33,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:55:33,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:55:33,094 INFO L87 Difference]: Start difference. First operand 243 states and 342 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, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-14 03:55:40,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:55:40,278 INFO L93 Difference]: Finished difference Result 500 states and 720 transitions. [2024-11-14 03:55:40,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 03:55:40,279 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, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 71 [2024-11-14 03:55:40,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:55:40,282 INFO L225 Difference]: With dead ends: 500 [2024-11-14 03:55:40,282 INFO L226 Difference]: Without dead ends: 275 [2024-11-14 03:55:40,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 187 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 85.7s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:55:40,285 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 25 mSDsluCounter, 2753 mSDsCounter, 0 mSdLazyCounter, 1617 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2960 SdHoareTripleChecker+Invalid, 1626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:55:40,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2960 Invalid, 1626 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1617 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-14 03:55:40,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2024-11-14 03:55:40,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 266. [2024-11-14 03:55:40,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 171 states have (on average 1.3801169590643274) internal successors, (236), 174 states have internal predecessors, (236), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-11-14 03:55:40,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 375 transitions. [2024-11-14 03:55:40,365 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 375 transitions. Word has length 71 [2024-11-14 03:55:40,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:55:40,367 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 375 transitions. [2024-11-14 03:55:40,367 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, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-14 03:55:40,367 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 375 transitions. [2024-11-14 03:55:40,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 03:55:40,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:55:40,369 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 03:55:40,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 03:55:40,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:55:40,574 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:55:40,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:55:40,575 INFO L85 PathProgramCache]: Analyzing trace with hash 776177268, now seen corresponding path program 1 times [2024-11-14 03:55:40,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:55:40,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400209653] [2024-11-14 03:55:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:40,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:55:40,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:55:40,730 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 03:55:40,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:55:40,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400209653] [2024-11-14 03:55:40,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400209653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:55:40,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:55:40,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:55:40,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126375574] [2024-11-14 03:55:40,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:55:40,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:55:40,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:55:40,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:55:40,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:55:40,733 INFO L87 Difference]: Start difference. First operand 266 states and 375 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, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:55:40,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:55:40,966 INFO L93 Difference]: Finished difference Result 625 states and 914 transitions. [2024-11-14 03:55:40,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:55:40,966 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, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 76 [2024-11-14 03:55:40,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:55:40,972 INFO L225 Difference]: With dead ends: 625 [2024-11-14 03:55:40,973 INFO L226 Difference]: Without dead ends: 383 [2024-11-14 03:55:40,974 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 03:55:40,979 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 55 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:55:40,979 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 457 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:55:40,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-14 03:55:41,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 378. [2024-11-14 03:55:41,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 258 states have (on average 1.441860465116279) internal successors, (372), 261 states have internal predecessors, (372), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-14 03:55:41,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 561 transitions. [2024-11-14 03:55:41,077 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 561 transitions. Word has length 76 [2024-11-14 03:55:41,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:55:41,077 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 561 transitions. [2024-11-14 03:55:41,078 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, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:55:41,078 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 561 transitions. [2024-11-14 03:55:41,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:55:41,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:55:41,080 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:55:41,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:55:41,080 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:55:41,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:55:41,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1021229531, now seen corresponding path program 1 times [2024-11-14 03:55:41,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:55:41,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39303426] [2024-11-14 03:55:41,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:41,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:55:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:55:41,248 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 03:55:41,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:55:41,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39303426] [2024-11-14 03:55:41,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39303426] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:55:41,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173221675] [2024-11-14 03:55:41,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:55:41,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:55:41,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:55:41,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:55:41,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:55:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:55:41,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:55:41,657 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:55:41,690 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 03:55:41,690 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:55:41,781 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 03:55:41,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173221675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:55:41,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [951613267] [2024-11-14 03:55:41,788 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-14 03:55:41,788 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:55:41,789 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:55:41,789 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:55:41,789 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:56:20,988 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 03:56:21,126 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 226 for LOIs [2024-11-14 03:56:21,226 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:57:27,320 WARN L286 SmtUtils]: Spent 11.66s on a formula simplification. DAG size of input: 469 DAG size of output: 469 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:57:42,871 WARN L286 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 473 DAG size of output: 470 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:57:57,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [951613267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:57:57,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:57:57,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-14 03:57:57,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285846889] [2024-11-14 03:57:57,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:57:57,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 03:57:57,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:57:57,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 03:57:57,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=833, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:57:57,698 INFO L87 Difference]: Start difference. First operand 378 states and 561 transitions. Second operand has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-14 03:58:08,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:58:08,383 INFO L93 Difference]: Finished difference Result 764 states and 1161 transitions. [2024-11-14 03:58:08,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 03:58:08,384 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 77 [2024-11-14 03:58:08,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:58:08,390 INFO L225 Difference]: With dead ends: 764 [2024-11-14 03:58:08,391 INFO L226 Difference]: Without dead ends: 449 [2024-11-14 03:58:08,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 96.5s TimeCoverageRelationStatistics Valid=97, Invalid=833, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:58:08,396 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 61 mSDsluCounter, 3588 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 2210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:58:08,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3795 Invalid, 2210 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2202 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2024-11-14 03:58:08,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-14 03:58:08,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 392. [2024-11-14 03:58:08,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 270 states have (on average 1.4407407407407407) internal successors, (389), 273 states have internal predecessors, (389), 96 states have call successors, (96), 25 states have call predecessors, (96), 25 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-14 03:58:08,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 580 transitions. [2024-11-14 03:58:08,558 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 580 transitions. Word has length 77 [2024-11-14 03:58:08,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:58:08,559 INFO L471 AbstractCegarLoop]: Abstraction has 392 states and 580 transitions. [2024-11-14 03:58:08,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 16 states have internal predecessors, (40), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2024-11-14 03:58:08,559 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 580 transitions. [2024-11-14 03:58:08,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:58:08,565 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:58:08,566 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:58:08,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 03:58:08,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 03:58:08,770 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:58:08,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:58:08,771 INFO L85 PathProgramCache]: Analyzing trace with hash -375006220, now seen corresponding path program 1 times [2024-11-14 03:58:08,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:58:08,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682459711] [2024-11-14 03:58:08,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:08,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:58:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:09,052 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 03:58:09,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:58:09,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682459711] [2024-11-14 03:58:09,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682459711] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:58:09,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907924213] [2024-11-14 03:58:09,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:58:09,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:58:09,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:58:09,057 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:58:09,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:58:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:58:09,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:58:09,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:58:09,592 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 03:58:09,592 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:58:09,709 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 03:58:09,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907924213] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:58:09,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1412132130] [2024-11-14 03:58:09,712 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2024-11-14 03:58:09,713 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:58:09,713 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:58:09,713 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:58:09,713 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:59:36,915 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 03:59:37,065 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 498 for LOIs [2024-11-14 03:59:38,146 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 507 for LOIs [2024-11-14 03:59:39,412 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 443 for LOIs [2024-11-14 03:59:39,858 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2024-11-14 03:59:39,996 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:00:56,040 WARN L286 SmtUtils]: Spent 15.86s on a formula simplification. DAG size of input: 527 DAG size of output: 522 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:01:03,355 WARN L286 SmtUtils]: Spent 6.46s on a formula simplification. DAG size of input: 529 DAG size of output: 520 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:01:29,518 WARN L286 SmtUtils]: Spent 5.84s on a formula simplification that was a NOOP. DAG size: 508 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:01:36,393 WARN L286 SmtUtils]: Spent 6.03s on a formula simplification. DAG size of input: 513 DAG size of output: 509 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:01:42,719 WARN L286 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 507 DAG size of output: 503 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:01:49,067 WARN L286 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 507 DAG size of output: 503 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:01:55,020 WARN L286 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 503 DAG size of output: 499 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:02:06,337 WARN L286 SmtUtils]: Spent 5.14s on a formula simplification. DAG size of input: 498 DAG size of output: 494 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:02:12,160 WARN L286 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 494 DAG size of output: 490 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:02:12,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1412132130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:02:12,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:02:12,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-14 04:02:12,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62658268] [2024-11-14 04:02:12,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:02:12,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 04:02:12,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:02:12,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 04:02:12,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:02:12,551 INFO L87 Difference]: Start difference. First operand 392 states and 580 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, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-14 04:02:33,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:02:33,336 INFO L93 Difference]: Finished difference Result 789 states and 1196 transitions. [2024-11-14 04:02:33,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 04:02:33,337 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, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 80 [2024-11-14 04:02:33,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:02:33,342 INFO L225 Difference]: With dead ends: 789 [2024-11-14 04:02:33,342 INFO L226 Difference]: Without dead ends: 474 [2024-11-14 04:02:33,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 204 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 152.5s TimeCoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:02:33,345 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 75 mSDsluCounter, 3708 mSDsCounter, 0 mSdLazyCounter, 3380 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 3914 SdHoareTripleChecker+Invalid, 3389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:02:33,345 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 3914 Invalid, 3389 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3380 Invalid, 0 Unknown, 0 Unchecked, 20.4s Time] [2024-11-14 04:02:33,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2024-11-14 04:02:33,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 428. [2024-11-14 04:02:33,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 300 states have (on average 1.4366666666666668) internal successors, (431), 303 states have internal predecessors, (431), 99 states have call successors, (99), 28 states have call predecessors, (99), 28 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-14 04:02:33,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 628 transitions. [2024-11-14 04:02:33,503 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 628 transitions. Word has length 80 [2024-11-14 04:02:33,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:02:33,504 INFO L471 AbstractCegarLoop]: Abstraction has 428 states and 628 transitions. [2024-11-14 04:02:33,504 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, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-14 04:02:33,504 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 628 transitions. [2024-11-14 04:02:33,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 04:02:33,506 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:02:33,506 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 04:02:33,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 04:02:33,711 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 04:02:33,711 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:02:33,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:02:33,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1214231611, now seen corresponding path program 1 times [2024-11-14 04:02:33,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:02:33,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543958233] [2024-11-14 04:02:33,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:02:33,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:02:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:02:33,874 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 04:02:33,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:02:33,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543958233] [2024-11-14 04:02:33,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543958233] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:02:33,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125618408] [2024-11-14 04:02:33,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:02:33,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:02:33,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:02:33,877 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:02:33,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:02:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:02:34,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:02:34,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:02:34,365 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 04:02:34,366 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:02:34,476 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 04:02:34,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125618408] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:02:34,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1505182331] [2024-11-14 04:02:34,479 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 04:02:34,482 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:02:34,483 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:02:34,487 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:02:34,487 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:03:08,973 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 04:03:09,089 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2024-11-14 04:03:09,193 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:04:14,962 WARN L286 SmtUtils]: Spent 10.76s on a formula simplification. DAG size of input: 468 DAG size of output: 468 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:04:51,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1505182331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:04:51,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:04:51,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 04:04:51,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64408525] [2024-11-14 04:04:51,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:04:51,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 04:04:51,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:04:51,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 04:04:51,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 04:04:51,835 INFO L87 Difference]: Start difference. First operand 428 states and 628 transitions. Second operand has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-14 04:05:02,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:05:02,605 INFO L93 Difference]: Finished difference Result 791 states and 1187 transitions. [2024-11-14 04:05:02,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 04:05:02,607 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 79 [2024-11-14 04:05:02,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:05:02,617 INFO L225 Difference]: With dead ends: 791 [2024-11-14 04:05:02,622 INFO L226 Difference]: Without dead ends: 476 [2024-11-14 04:05:02,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 207 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 102.6s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 04:05:02,624 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 17 mSDsluCounter, 3376 mSDsCounter, 0 mSdLazyCounter, 2328 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3577 SdHoareTripleChecker+Invalid, 2336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:05:02,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3577 Invalid, 2336 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2328 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-11-14 04:05:02,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-14 04:05:02,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 448. [2024-11-14 04:05:02,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 320 states have (on average 1.440625) internal successors, (461), 323 states have internal predecessors, (461), 99 states have call successors, (99), 28 states have call predecessors, (99), 28 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-14 04:05:02,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 658 transitions. [2024-11-14 04:05:02,799 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 658 transitions. Word has length 79 [2024-11-14 04:05:02,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:05:02,799 INFO L471 AbstractCegarLoop]: Abstraction has 448 states and 658 transitions. [2024-11-14 04:05:02,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.3684210526315788) internal successors, (45), 18 states have internal predecessors, (45), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-14 04:05:02,799 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 658 transitions. [2024-11-14 04:05:02,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 04:05:02,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:05:02,802 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:05:02,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 04:05:03,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 04:05:03,003 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:05:03,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:05:03,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1509399721, now seen corresponding path program 1 times [2024-11-14 04:05:03,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:05:03,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238066336] [2024-11-14 04:05:03,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:05:03,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:05:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:05:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-14 04:05:03,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:05:03,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238066336] [2024-11-14 04:05:03,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238066336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:05:03,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:05:03,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:05:03,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549010212] [2024-11-14 04:05:03,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:05:03,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:05:03,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:05:03,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:05:03,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:05:03,187 INFO L87 Difference]: Start difference. First operand 448 states and 658 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 04:05:03,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:05:03,494 INFO L93 Difference]: Finished difference Result 591 states and 828 transitions. [2024-11-14 04:05:03,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:05:03,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 82 [2024-11-14 04:05:03,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:05:03,498 INFO L225 Difference]: With dead ends: 591 [2024-11-14 04:05:03,498 INFO L226 Difference]: Without dead ends: 478 [2024-11-14 04:05:03,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 04:05:03,500 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 123 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:05:03,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 332 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:05:03,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-14 04:05:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 478. [2024-11-14 04:05:03,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 336 states have (on average 1.4196428571428572) internal successors, (477), 339 states have internal predecessors, (477), 105 states have call successors, (105), 37 states have call predecessors, (105), 36 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-14 04:05:03,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 686 transitions. [2024-11-14 04:05:03,710 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 686 transitions. Word has length 82 [2024-11-14 04:05:03,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:05:03,710 INFO L471 AbstractCegarLoop]: Abstraction has 478 states and 686 transitions. [2024-11-14 04:05:03,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 04:05:03,710 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 686 transitions. [2024-11-14 04:05:03,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-14 04:05:03,713 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:05:03,713 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:05:03,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 04:05:03,713 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:05:03,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:05:03,714 INFO L85 PathProgramCache]: Analyzing trace with hash -597019439, now seen corresponding path program 1 times [2024-11-14 04:05:03,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:05:03,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190310388] [2024-11-14 04:05:03,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:05:03,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:05:03,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:05:04,074 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-14 04:05:04,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:05:04,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190310388] [2024-11-14 04:05:04,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190310388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:05:04,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:05:04,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 04:05:04,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464659162] [2024-11-14 04:05:04,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:05:04,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 04:05:04,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:05:04,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 04:05:04,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 04:05:04,076 INFO L87 Difference]: Start difference. First operand 478 states and 686 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 4 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-14 04:05:04,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:05:04,930 INFO L93 Difference]: Finished difference Result 678 states and 921 transitions. [2024-11-14 04:05:04,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 04:05:04,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 4 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 135 [2024-11-14 04:05:04,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:05:04,934 INFO L225 Difference]: With dead ends: 678 [2024-11-14 04:05:04,935 INFO L226 Difference]: Without dead ends: 490 [2024-11-14 04:05:04,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-14 04:05:04,936 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 240 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:05:04,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 425 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 04:05:04,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-14 04:05:05,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2024-11-14 04:05:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 342 states have (on average 1.4064327485380117) internal successors, (481), 345 states have internal predecessors, (481), 105 states have call successors, (105), 43 states have call predecessors, (105), 42 states have return successors, (104), 104 states have call predecessors, (104), 104 states have call successors, (104) [2024-11-14 04:05:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 690 transitions. [2024-11-14 04:05:05,153 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 690 transitions. Word has length 135 [2024-11-14 04:05:05,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:05:05,154 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 690 transitions. [2024-11-14 04:05:05,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 4 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2024-11-14 04:05:05,154 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 690 transitions. [2024-11-14 04:05:05,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-14 04:05:05,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:05:05,158 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:05:05,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 04:05:05,158 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:05:05,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:05:05,158 INFO L85 PathProgramCache]: Analyzing trace with hash -144532116, now seen corresponding path program 1 times [2024-11-14 04:05:05,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:05:05,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247136729] [2024-11-14 04:05:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:05:05,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:05:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:05:06,335 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-14 04:05:06,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:05:06,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247136729] [2024-11-14 04:05:06,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247136729] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:05:06,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532033099] [2024-11-14 04:05:06,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:05:06,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:05:06,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:05:06,339 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:05:06,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b6b24ce0-9040-4ed6-a207-5f5ab44f186c/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:05:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:05:06,854 INFO L255 TraceCheckSpWp]: Trace formula consists of 1356 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:05:06,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:05:06,968 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-14 04:05:06,968 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:05:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-14 04:05:07,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532033099] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:05:07,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [299945022] [2024-11-14 04:05:07,368 INFO L159 IcfgInterpreter]: Started Sifa with 113 locations of interest [2024-11-14 04:05:07,368 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:05:07,369 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:05:07,369 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:05:07,369 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:05:44,176 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-14 04:05:44,278 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 269 for LOIs [2024-11-14 04:05:49,620 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 226 for LOIs [2024-11-14 04:05:49,814 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 350 for LOIs [2024-11-14 04:06:07,079 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 203 for LOIs [2024-11-14 04:06:08,001 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 359 for LOIs [2024-11-14 04:06:09,771 INFO L197 IcfgInterpreter]: Interpreting procedure findPublicKey with input of size 206 for LOIs [2024-11-14 04:06:09,951 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 280 for LOIs [2024-11-14 04:06:10,528 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 288 for LOIs [2024-11-14 04:06:11,204 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 235 for LOIs [2024-11-14 04:06:11,294 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 203 for LOIs [2024-11-14 04:06:11,370 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:07:45,444 WARN L286 SmtUtils]: Spent 7.00s on a formula simplification. DAG size of input: 350 DAG size of output: 337 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)