./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product33.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_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/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_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/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_51a69e88-c9dc-47a2-95cd-97b57b7d6643/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 110ae467dd0e6a723852f1756a5d5c5e6a5ea34b8ae8b082c6ae77d9e8e89434 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:33:18,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:33:18,755 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:33:18,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:33:18,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:33:18,794 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:33:18,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:33:18,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:33:18,795 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:33:18,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:33:18,796 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:33:18,796 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:33:18,796 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:33:18,796 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:33:18,797 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:33:18,797 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:33:18,797 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:33:18,797 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:33:18,797 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:33:18,798 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:33:18,798 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:33:18,798 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:33:18,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:33:18,799 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:33:18,799 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:33:18,799 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:33:18,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:33:18,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:33:18,800 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:33:18,800 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:33:18,800 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:33:18,800 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:33:18,801 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:33:18,801 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:33:18,801 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:33:18,801 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:33:18,801 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:33:18,802 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:33:18,802 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:33:18,802 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:33:18,802 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:33:18,802 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:33:18,803 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:33:18,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:33:18,803 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:33:18,803 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:33:18,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:33:18,804 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_51a69e88-c9dc-47a2-95cd-97b57b7d6643/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 -> 110ae467dd0e6a723852f1756a5d5c5e6a5ea34b8ae8b082c6ae77d9e8e89434 [2024-11-14 03:33:19,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:33:19,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:33:19,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:33:19,202 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:33:19,203 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:33:19,204 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec8_product33.cil.c Unable to find full path for "g++" [2024-11-14 03:33:21,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:33:22,012 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:33:22,013 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/sv-benchmarks/c/product-lines/email_spec8_product33.cil.c [2024-11-14 03:33:22,044 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/data/d0c66fb5e/0b9d600555544e689589c431148668f1/FLAG78c162a48 [2024-11-14 03:33:22,074 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/data/d0c66fb5e/0b9d600555544e689589c431148668f1 [2024-11-14 03:33:22,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:33:22,081 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:33:22,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:33:22,085 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:33:22,091 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:33:22,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:33:22" (1/1) ... [2024-11-14 03:33:22,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104ecdd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:22, skipping insertion in model container [2024-11-14 03:33:22,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:33:22" (1/1) ... [2024-11-14 03:33:22,207 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:33:22,575 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_51a69e88-c9dc-47a2-95cd-97b57b7d6643/sv-benchmarks/c/product-lines/email_spec8_product33.cil.c[11621,11634] [2024-11-14 03:33:23,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:33:23,187 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:33:23,202 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2024-11-14 03:33:23,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [414] [2024-11-14 03:33:23,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [432] [2024-11-14 03:33:23,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [441] [2024-11-14 03:33:23,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1521] [2024-11-14 03:33:23,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [1680] [2024-11-14 03:33:23,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1723] [2024-11-14 03:33:23,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1952] [2024-11-14 03:33:23,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2246] [2024-11-14 03:33:23,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2281] [2024-11-14 03:33:23,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2675] [2024-11-14 03:33:23,270 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_51a69e88-c9dc-47a2-95cd-97b57b7d6643/sv-benchmarks/c/product-lines/email_spec8_product33.cil.c[11621,11634] [2024-11-14 03:33:23,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:33:23,451 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:33:23,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23 WrapperNode [2024-11-14 03:33:23,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:33:23,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:33:23,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:33:23,454 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:33:23,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23" (1/1) ... [2024-11-14 03:33:23,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23" (1/1) ... [2024-11-14 03:33:23,597 INFO L138 Inliner]: procedures = 135, calls = 215, calls flagged for inlining = 66, calls inlined = 61, statements flattened = 1092 [2024-11-14 03:33:23,599 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:33:23,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:33:23,600 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:33:23,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:33:23,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23" (1/1) ... [2024-11-14 03:33:23,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23" (1/1) ... [2024-11-14 03:33:23,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23" (1/1) ... [2024-11-14 03:33:23,630 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23" (1/1) ... [2024-11-14 03:33:23,680 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23" (1/1) ... [2024-11-14 03:33:23,704 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23" (1/1) ... [2024-11-14 03:33:23,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23" (1/1) ... [2024-11-14 03:33:23,726 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23" (1/1) ... [2024-11-14 03:33:23,739 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:33:23,740 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:33:23,741 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:33:23,741 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:33:23,742 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23" (1/1) ... [2024-11-14 03:33:23,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:33:23,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:33:23,796 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:33:23,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:33:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2024-11-14 03:33:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2024-11-14 03:33:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-14 03:33:23,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-14 03:33:23,860 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-14 03:33:23,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-14 03:33:23,861 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 03:33:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 03:33:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 03:33:23,862 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 03:33:23,862 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-14 03:33:23,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-14 03:33:23,863 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 03:33:23,864 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 03:33:23,864 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-14 03:33:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-14 03:33:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-14 03:33:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-14 03:33:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 03:33:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 03:33:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-14 03:33:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-14 03:33:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-14 03:33:23,865 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-14 03:33:23,865 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 03:33:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 03:33:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:33:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-14 03:33:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-14 03:33:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2024-11-14 03:33:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2024-11-14 03:33:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 03:33:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 03:33:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 03:33:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 03:33:23,866 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 03:33:23,866 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 03:33:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-14 03:33:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-14 03:33:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 03:33:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 03:33:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-14 03:33:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-14 03:33:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 03:33:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 03:33:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 03:33:23,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 03:33:23,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:33:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 03:33:23,872 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 03:33:23,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:33:23,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:33:24,231 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:33:24,233 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:33:25,894 INFO L? ?]: Removed 503 outVars from TransFormulas that were not future-live. [2024-11-14 03:33:25,898 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:33:26,947 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:33:26,951 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:33:26,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:33:26 BoogieIcfgContainer [2024-11-14 03:33:26,951 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:33:26,955 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:33:26,955 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:33:26,964 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:33:26,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:33:22" (1/3) ... [2024-11-14 03:33:26,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de3aab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:33:26, skipping insertion in model container [2024-11-14 03:33:26,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:33:23" (2/3) ... [2024-11-14 03:33:26,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de3aab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:33:26, skipping insertion in model container [2024-11-14 03:33:26,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:33:26" (3/3) ... [2024-11-14 03:33:26,968 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product33.cil.c [2024-11-14 03:33:26,990 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:33:26,994 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec8_product33.cil.c that has 25 procedures, 212 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:33:27,095 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:33:27,119 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;@5ce9ddd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:33:27,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:33:27,128 INFO L276 IsEmpty]: Start isEmpty. Operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-14 03:33:27,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 03:33:27,145 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:27,147 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 03:33:27,148 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:33:27,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:27,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1258076389, now seen corresponding path program 1 times [2024-11-14 03:33:27,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:27,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163898370] [2024-11-14 03:33:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:27,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:27,702 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 03:33:27,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:27,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163898370] [2024-11-14 03:33:27,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163898370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:33:27,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:33:27,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:33:27,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297559230] [2024-11-14 03:33:27,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:33:27,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:33:27,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:33:27,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:33:27,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:33:27,740 INFO L87 Difference]: Start difference. First operand has 212 states, 123 states have (on average 1.3089430894308942) internal successors, (161), 127 states have internal predecessors, (161), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) 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 03:33:28,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:28,007 INFO L93 Difference]: Finished difference Result 341 states and 452 transitions. [2024-11-14 03:33:28,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:33:28,010 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 03:33:28,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:28,032 INFO L225 Difference]: With dead ends: 341 [2024-11-14 03:33:28,032 INFO L226 Difference]: Without dead ends: 209 [2024-11-14 03:33:28,041 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 03:33:28,048 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:28,049 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 243 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:33:28,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-14 03:33:28,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2024-11-14 03:33:28,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 121 states have (on average 1.28099173553719) internal successors, (155), 124 states have internal predecessors, (155), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-14 03:33:28,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 280 transitions. [2024-11-14 03:33:28,158 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 280 transitions. Word has length 64 [2024-11-14 03:33:28,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:28,163 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 280 transitions. [2024-11-14 03:33:28,164 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 03:33:28,165 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 280 transitions. [2024-11-14 03:33:28,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 03:33:28,169 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:28,169 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 03:33:28,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:33:28,171 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:33:28,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:28,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1361298564, now seen corresponding path program 1 times [2024-11-14 03:33:28,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:28,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653204399] [2024-11-14 03:33:28,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:28,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:28,650 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 03:33:28,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:28,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653204399] [2024-11-14 03:33:28,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653204399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:33:28,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:33:28,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:33:28,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765371198] [2024-11-14 03:33:28,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:33:28,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:33:28,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:33:28,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:33:28,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:33:28,658 INFO L87 Difference]: Start difference. First operand 209 states and 280 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 03:33:28,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:28,925 INFO L93 Difference]: Finished difference Result 337 states and 440 transitions. [2024-11-14 03:33:28,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:33:28,926 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 03:33:28,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:28,930 INFO L225 Difference]: With dead ends: 337 [2024-11-14 03:33:28,930 INFO L226 Difference]: Without dead ends: 211 [2024-11-14 03:33:28,932 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 03:33:28,934 INFO L432 NwaCegarLoop]: 240 mSDtfsCounter, 0 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:28,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 479 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:33:28,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-14 03:33:28,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2024-11-14 03:33:28,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 126 states have internal predecessors, (157), 63 states have call successors, (63), 24 states have call predecessors, (63), 24 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-14 03:33:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 282 transitions. [2024-11-14 03:33:28,965 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 282 transitions. Word has length 65 [2024-11-14 03:33:28,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:28,966 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 282 transitions. [2024-11-14 03:33:28,966 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 03:33:28,967 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 282 transitions. [2024-11-14 03:33:28,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 03:33:28,970 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:28,970 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 03:33:28,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:33:28,971 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:33:28,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:28,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1195649344, now seen corresponding path program 1 times [2024-11-14 03:33:28,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:28,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804335214] [2024-11-14 03:33:28,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:28,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:29,237 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 03:33:29,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:29,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804335214] [2024-11-14 03:33:29,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804335214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:33:29,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:33:29,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:33:29,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290230353] [2024-11-14 03:33:29,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:33:29,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:33:29,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:33:29,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:33:29,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:33:29,240 INFO L87 Difference]: Start difference. First operand 211 states and 282 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 03:33:29,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:33:29,480 INFO L93 Difference]: Finished difference Result 452 states and 623 transitions. [2024-11-14 03:33:29,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:33:29,481 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 03:33:29,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:33:29,488 INFO L225 Difference]: With dead ends: 452 [2024-11-14 03:33:29,488 INFO L226 Difference]: Without dead ends: 259 [2024-11-14 03:33:29,489 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 03:33:29,490 INFO L432 NwaCegarLoop]: 255 mSDtfsCounter, 57 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:33:29,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 489 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:33:29,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-14 03:33:29,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 254. [2024-11-14 03:33:29,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 158 states have internal predecessors, (210), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-14 03:33:29,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 357 transitions. [2024-11-14 03:33:29,522 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 357 transitions. Word has length 70 [2024-11-14 03:33:29,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:33:29,522 INFO L471 AbstractCegarLoop]: Abstraction has 254 states and 357 transitions. [2024-11-14 03:33:29,522 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 03:33:29,522 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 357 transitions. [2024-11-14 03:33:29,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 03:33:29,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:33:29,526 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 03:33:29,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:33:29,527 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:33:29,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:33:29,527 INFO L85 PathProgramCache]: Analyzing trace with hash 513391140, now seen corresponding path program 1 times [2024-11-14 03:33:29,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:33:29,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645949836] [2024-11-14 03:33:29,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:29,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:33:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:29,969 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 03:33:29,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:33:29,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645949836] [2024-11-14 03:33:29,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645949836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:33:29,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358796288] [2024-11-14 03:33:29,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:33:29,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:33:29,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:33:29,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:33:29,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:33:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:33:30,605 INFO L255 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:33:30,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:33:30,709 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 03:33:30,711 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:33:30,885 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 03:33:30,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358796288] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:33:30,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2017538518] [2024-11-14 03:33:30,918 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-14 03:33:30,919 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:33:30,923 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:33:30,929 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:33:30,929 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:34:09,095 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-14 03:34:09,342 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 03:34:09,653 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:35:26,165 WARN L286 SmtUtils]: Spent 13.04s 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 03:35:40,566 WARN L286 SmtUtils]: Spent 13.15s on a formula simplification. DAG size of input: 469 DAG size of output: 468 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:35:51,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2017538518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:35:51,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:35:51,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 03:35:51,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370259008] [2024-11-14 03:35:51,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:35:51,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:35:51,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:35:51,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:35:51,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:35:51,283 INFO L87 Difference]: Start difference. First operand 254 states and 357 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 03:36:07,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:07,553 INFO L93 Difference]: Finished difference Result 522 states and 750 transitions. [2024-11-14 03:36:07,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 03:36:07,554 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 03:36:07,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:07,557 INFO L225 Difference]: With dead ends: 522 [2024-11-14 03:36:07,558 INFO L226 Difference]: Without dead ends: 286 [2024-11-14 03:36:07,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 105.8s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-14 03:36:07,560 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 25 mSDsluCounter, 3138 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 3358 SdHoareTripleChecker+Invalid, 1992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:07,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 3358 Invalid, 1992 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2024-11-14 03:36:07,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-14 03:36:07,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 277. [2024-11-14 03:36:07,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 177 states have (on average 1.3728813559322033) internal successors, (243), 180 states have internal predecessors, (243), 74 states have call successors, (74), 25 states have call predecessors, (74), 25 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-14 03:36:07,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 390 transitions. [2024-11-14 03:36:07,653 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 390 transitions. Word has length 71 [2024-11-14 03:36:07,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:07,654 INFO L471 AbstractCegarLoop]: Abstraction has 277 states and 390 transitions. [2024-11-14 03:36:07,654 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 03:36:07,654 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 390 transitions. [2024-11-14 03:36:07,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 03:36:07,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:07,658 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 03:36:07,687 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:36:07,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:36:07,863 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:36:07,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:07,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1169957834, now seen corresponding path program 1 times [2024-11-14 03:36:07,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:36:07,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816967942] [2024-11-14 03:36:07,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:07,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:36:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:08,038 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 03:36:08,039 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:36:08,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816967942] [2024-11-14 03:36:08,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816967942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:36:08,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:36:08,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:36:08,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894177789] [2024-11-14 03:36:08,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:36:08,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:36:08,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:36:08,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:36:08,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:36:08,041 INFO L87 Difference]: Start difference. First operand 277 states and 390 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 03:36:08,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:36:08,320 INFO L93 Difference]: Finished difference Result 647 states and 944 transitions. [2024-11-14 03:36:08,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:36:08,320 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 03:36:08,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:36:08,327 INFO L225 Difference]: With dead ends: 647 [2024-11-14 03:36:08,328 INFO L226 Difference]: Without dead ends: 394 [2024-11-14 03:36:08,329 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 03:36:08,330 INFO L432 NwaCegarLoop]: 251 mSDtfsCounter, 55 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 491 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:36:08,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 491 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:36:08,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2024-11-14 03:36:08,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 389. [2024-11-14 03:36:08,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 264 states have (on average 1.4356060606060606) internal successors, (379), 267 states have internal predecessors, (379), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-14 03:36:08,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 576 transitions. [2024-11-14 03:36:08,487 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 576 transitions. Word has length 76 [2024-11-14 03:36:08,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:36:08,487 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 576 transitions. [2024-11-14 03:36:08,487 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 03:36:08,488 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 576 transitions. [2024-11-14 03:36:08,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:36:08,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:36:08,491 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 03:36:08,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:36:08,491 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:36:08,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:36:08,492 INFO L85 PathProgramCache]: Analyzing trace with hash -2020984053, now seen corresponding path program 1 times [2024-11-14 03:36:08,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:36:08,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965828359] [2024-11-14 03:36:08,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:08,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:36:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:08,715 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 03:36:08,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:36:08,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965828359] [2024-11-14 03:36:08,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965828359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:36:08,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692988715] [2024-11-14 03:36:08,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:36:08,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:36:08,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:36:08,718 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:36:08,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:36:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:36:09,207 INFO L255 TraceCheckSpWp]: Trace formula consists of 917 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:36:09,214 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:36:09,258 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 03:36:09,258 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:36:09,388 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 03:36:09,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692988715] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:36:09,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [252759048] [2024-11-14 03:36:09,393 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-14 03:36:09,394 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:36:09,395 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:36:09,395 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:36:09,395 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:36:57,821 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-14 03:36:57,992 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 452 for LOIs [2024-11-14 03:36:59,542 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:37:29,266 WARN L286 SmtUtils]: Spent 9.16s on a formula simplification. DAG size of input: 452 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:37:43,127 WARN L286 SmtUtils]: Spent 13.24s on a formula simplification. DAG size of input: 476 DAG size of output: 471 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:38:35,430 WARN L286 SmtUtils]: Spent 12.81s 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 03:38:50,114 WARN L286 SmtUtils]: Spent 13.32s on a formula simplification. DAG size of input: 470 DAG size of output: 469 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:38:55,781 WARN L286 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 472 DAG size of output: 470 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:39:02,153 WARN L286 SmtUtils]: Spent 5.33s on a formula simplification. DAG size of input: 472 DAG size of output: 470 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:39:17,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [252759048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:39:17,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:39:17,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-14 03:39:17,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674226446] [2024-11-14 03:39:17,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:39:17,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 03:39:17,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:39:17,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 03:39:17,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:39:17,535 INFO L87 Difference]: Start difference. First operand 389 states and 576 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 03:39:32,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:39:32,599 INFO L93 Difference]: Finished difference Result 786 states and 1191 transitions. [2024-11-14 03:39:32,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 03:39:32,601 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 03:39:32,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:39:32,605 INFO L225 Difference]: With dead ends: 786 [2024-11-14 03:39:32,605 INFO L226 Difference]: Without dead ends: 460 [2024-11-14 03:39:32,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 138.0s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:39:32,608 INFO L432 NwaCegarLoop]: 218 mSDtfsCounter, 61 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 2409 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:39:32,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 3595 Invalid, 2417 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2409 Invalid, 0 Unknown, 0 Unchecked, 14.7s Time] [2024-11-14 03:39:32,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2024-11-14 03:39:32,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 403. [2024-11-14 03:39:32,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 276 states have (on average 1.434782608695652) internal successors, (396), 279 states have internal predecessors, (396), 100 states have call successors, (100), 26 states have call predecessors, (100), 26 states have return successors, (99), 99 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-14 03:39:32,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 595 transitions. [2024-11-14 03:39:32,722 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 595 transitions. Word has length 77 [2024-11-14 03:39:32,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:39:32,722 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 595 transitions. [2024-11-14 03:39:32,723 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 03:39:32,723 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 595 transitions. [2024-11-14 03:39:32,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:39:32,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:39:32,726 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 03:39:32,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 03:39:32,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 03:39:32,930 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:39:32,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:39:32,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1531651055, now seen corresponding path program 1 times [2024-11-14 03:39:32,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:39:32,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655333992] [2024-11-14 03:39:32,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:39:32,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:39:32,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:39:33,154 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 03:39:33,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:39:33,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655333992] [2024-11-14 03:39:33,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655333992] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:39:33,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177096350] [2024-11-14 03:39:33,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:39:33,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:39:33,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:39:33,158 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:39:33,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:39:33,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:39:33,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 979 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:39:33,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:39:33,703 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 03:39:33,704 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:39:33,807 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 03:39:33,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177096350] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:39:33,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [318877163] [2024-11-14 03:39:33,811 INFO L159 IcfgInterpreter]: Started Sifa with 69 locations of interest [2024-11-14 03:39:33,811 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:39:33,812 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:39:33,812 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:39:33,812 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:40:40,700 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-14 03:40:40,837 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 498 for LOIs [2024-11-14 03:40:41,947 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 507 for LOIs [2024-11-14 03:40:43,191 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 443 for LOIs [2024-11-14 03:40:43,629 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 03:40:43,804 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:42:01,351 WARN L286 SmtUtils]: Spent 14.98s 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 03:42:17,057 WARN L286 SmtUtils]: Spent 14.63s on a formula simplification. DAG size of input: 528 DAG size of output: 522 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:42:40,608 WARN L286 SmtUtils]: Spent 5.21s 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 03:42:46,744 WARN L286 SmtUtils]: Spent 5.44s 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 03:42:52,527 WARN L286 SmtUtils]: Spent 5.22s 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 03:42:58,264 WARN L286 SmtUtils]: Spent 5.17s 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 03:43:04,071 WARN L286 SmtUtils]: Spent 5.14s 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 03:43:09,726 WARN L286 SmtUtils]: Spent 5.04s 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 03:43:15,394 WARN L286 SmtUtils]: Spent 5.00s 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 03:43:21,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [318877163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:43:21,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:43:21,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-14 03:43:21,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825443942] [2024-11-14 03:43:21,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:43:21,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 03:43:21,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:43:21,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 03:43:21,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 03:43:21,051 INFO L87 Difference]: Start difference. First operand 403 states and 595 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 03:43:49,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:43:49,765 INFO L93 Difference]: Finished difference Result 811 states and 1226 transitions. [2024-11-14 03:43:49,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 03:43:49,766 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 03:43:49,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:43:49,770 INFO L225 Difference]: With dead ends: 811 [2024-11-14 03:43:49,770 INFO L226 Difference]: Without dead ends: 485 [2024-11-14 03:43:49,772 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 161.0s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 03:43:49,773 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 100 mSDsluCounter, 3732 mSDsCounter, 0 mSdLazyCounter, 3801 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 3811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:43:49,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 3952 Invalid, 3811 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3801 Invalid, 0 Unknown, 0 Unchecked, 24.5s Time] [2024-11-14 03:43:49,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2024-11-14 03:43:49,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 439. [2024-11-14 03:43:49,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 306 states have (on average 1.4313725490196079) internal successors, (438), 309 states have internal predecessors, (438), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-14 03:43:49,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 643 transitions. [2024-11-14 03:43:49,948 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 643 transitions. Word has length 80 [2024-11-14 03:43:49,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:43:49,949 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 643 transitions. [2024-11-14 03:43:49,949 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 03:43:49,949 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 643 transitions. [2024-11-14 03:43:49,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 03:43:49,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:43:49,952 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 03:43:49,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:43:50,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:43:50,156 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:43:50,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:43:50,156 INFO L85 PathProgramCache]: Analyzing trace with hash 153622007, now seen corresponding path program 1 times [2024-11-14 03:43:50,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:43:50,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715070105] [2024-11-14 03:43:50,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:43:50,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:43:50,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:43:50,327 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 03:43:50,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:43:50,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715070105] [2024-11-14 03:43:50,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715070105] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:43:50,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253975341] [2024-11-14 03:43:50,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:43:50,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:43:50,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:43:50,331 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:43:50,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:43:50,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:43:50,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:43:50,791 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:43:50,833 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 03:43:50,833 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:43:50,934 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 03:43:50,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253975341] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:43:50,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1191108787] [2024-11-14 03:43:50,938 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 03:43:50,938 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:43:50,938 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:43:50,939 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:43:50,939 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:44:34,416 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-14 03:44:34,541 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2024-11-14 03:44:34,702 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:45:42,478 WARN L286 SmtUtils]: Spent 11.86s 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 03:45:55,283 WARN L286 SmtUtils]: Spent 11.57s on a formula simplification. DAG size of input: 469 DAG size of output: 468 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:46:00,759 WARN L286 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 472 DAG size of output: 469 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:46:06,744 WARN L286 SmtUtils]: Spent 5.07s on a formula simplification. DAG size of input: 472 DAG size of output: 469 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:46:12,728 WARN L286 SmtUtils]: Spent 5.05s on a formula simplification. DAG size of input: 472 DAG size of output: 469 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:46:24,830 WARN L286 SmtUtils]: Spent 5.02s on a formula simplification. DAG size of input: 472 DAG size of output: 469 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:46:29,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1191108787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:29,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:46:29,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 03:46:29,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143352524] [2024-11-14 03:46:29,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:29,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 03:46:29,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:46:29,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 03:46:29,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:46:29,959 INFO L87 Difference]: Start difference. First operand 439 states and 643 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 03:46:45,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:45,735 INFO L93 Difference]: Finished difference Result 813 states and 1217 transitions. [2024-11-14 03:46:45,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 03:46:45,736 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 03:46:45,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:45,740 INFO L225 Difference]: With dead ends: 813 [2024-11-14 03:46:45,741 INFO L226 Difference]: Without dead ends: 487 [2024-11-14 03:46:45,742 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 204 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 119.1s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 03:46:45,743 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 17 mSDsluCounter, 2805 mSDsCounter, 0 mSdLazyCounter, 2220 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 3019 SdHoareTripleChecker+Invalid, 2229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:46:45,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 3019 Invalid, 2229 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2220 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2024-11-14 03:46:45,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-14 03:46:45,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 459. [2024-11-14 03:46:45,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 326 states have (on average 1.4355828220858895) internal successors, (468), 329 states have internal predecessors, (468), 103 states have call successors, (103), 29 states have call predecessors, (103), 29 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-11-14 03:46:45,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 673 transitions. [2024-11-14 03:46:45,911 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 673 transitions. Word has length 79 [2024-11-14 03:46:45,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:45,912 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 673 transitions. [2024-11-14 03:46:45,912 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 03:46:45,912 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 673 transitions. [2024-11-14 03:46:45,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 03:46:45,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:45,915 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 03:46:45,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 03:46:46,115 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:46:46,116 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:46:46,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:46,116 INFO L85 PathProgramCache]: Analyzing trace with hash 165178402, now seen corresponding path program 1 times [2024-11-14 03:46:46,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:46:46,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681009389] [2024-11-14 03:46:46,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:46,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:46:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:46,313 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 03:46:46,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:46:46,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681009389] [2024-11-14 03:46:46,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681009389] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:46,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:46:46,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:46:46,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712330566] [2024-11-14 03:46:46,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:46,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:46:46,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:46:46,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:46:46,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:46:46,315 INFO L87 Difference]: Start difference. First operand 459 states and 673 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 03:46:46,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:46,677 INFO L93 Difference]: Finished difference Result 613 states and 858 transitions. [2024-11-14 03:46:46,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:46:46,678 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 03:46:46,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:46,682 INFO L225 Difference]: With dead ends: 613 [2024-11-14 03:46:46,682 INFO L226 Difference]: Without dead ends: 489 [2024-11-14 03:46:46,683 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 03:46:46,684 INFO L432 NwaCegarLoop]: 239 mSDtfsCounter, 123 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:46:46,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 357 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:46:46,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2024-11-14 03:46:46,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2024-11-14 03:46:46,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 342 states have (on average 1.4152046783625731) internal successors, (484), 345 states have internal predecessors, (484), 109 states have call successors, (109), 38 states have call predecessors, (109), 37 states have return successors, (108), 108 states have call predecessors, (108), 108 states have call successors, (108) [2024-11-14 03:46:46,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 701 transitions. [2024-11-14 03:46:46,852 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 701 transitions. Word has length 82 [2024-11-14 03:46:46,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:46,852 INFO L471 AbstractCegarLoop]: Abstraction has 489 states and 701 transitions. [2024-11-14 03:46:46,852 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 03:46:46,853 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 701 transitions. [2024-11-14 03:46:46,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-14 03:46:46,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:46,856 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, 1, 1] [2024-11-14 03:46:46,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:46:46,856 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:46:46,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:46,857 INFO L85 PathProgramCache]: Analyzing trace with hash -512462490, now seen corresponding path program 1 times [2024-11-14 03:46:46,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:46:46,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302381628] [2024-11-14 03:46:46,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:46,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:46:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:47,250 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 03:46:47,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:46:47,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302381628] [2024-11-14 03:46:47,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302381628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:46:47,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:46:47,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 03:46:47,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394383663] [2024-11-14 03:46:47,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:46:47,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 03:46:47,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:46:47,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 03:46:47,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 03:46:47,252 INFO L87 Difference]: Start difference. First operand 489 states and 701 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 03:46:48,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:46:48,282 INFO L93 Difference]: Finished difference Result 727 states and 993 transitions. [2024-11-14 03:46:48,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:46:48,282 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 137 [2024-11-14 03:46:48,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:46:48,287 INFO L225 Difference]: With dead ends: 727 [2024-11-14 03:46:48,287 INFO L226 Difference]: Without dead ends: 535 [2024-11-14 03:46:48,288 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 03:46:48,289 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 251 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 497 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:46:48,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 497 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:46:48,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2024-11-14 03:46:48,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 532. [2024-11-14 03:46:48,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 364 states have (on average 1.3873626373626373) internal successors, (505), 368 states have internal predecessors, (505), 118 states have call successors, (118), 50 states have call predecessors, (118), 49 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2024-11-14 03:46:48,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 740 transitions. [2024-11-14 03:46:48,534 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 740 transitions. Word has length 137 [2024-11-14 03:46:48,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:46:48,535 INFO L471 AbstractCegarLoop]: Abstraction has 532 states and 740 transitions. [2024-11-14 03:46:48,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 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 03:46:48,536 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 740 transitions. [2024-11-14 03:46:48,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-14 03:46:48,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:46:48,539 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, 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] [2024-11-14 03:46:48,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:46:48,540 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:46:48,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:46:48,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1408997252, now seen corresponding path program 1 times [2024-11-14 03:46:48,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:46:48,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370567845] [2024-11-14 03:46:48,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:48,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:46:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:49,669 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-14 03:46:49,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:46:49,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370567845] [2024-11-14 03:46:49,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370567845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:46:49,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962990202] [2024-11-14 03:46:49,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:46:49,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:46:49,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:46:49,673 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:46:49,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a69e88-c9dc-47a2-95cd-97b57b7d6643/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:46:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:46:50,204 INFO L255 TraceCheckSpWp]: Trace formula consists of 1289 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:46:50,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:46:50,298 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-14 03:46:50,298 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:46:50,601 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-14 03:46:50,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962990202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:46:50,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [720870569] [2024-11-14 03:46:50,606 INFO L159 IcfgInterpreter]: Started Sifa with 100 locations of interest [2024-11-14 03:46:50,606 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:46:50,607 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:46:50,607 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:46:50,607 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:47:33,568 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 228 for LOIs [2024-11-14 03:47:33,676 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 260 for LOIs