./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product19.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_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/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_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/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_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/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 9deea958caebdff7c89a17deb67516eff149386872824a7682accca78686b765 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:38:43,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:38:43,308 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:38:43,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:38:43,315 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:38:43,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:38:43,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:38:43,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:38:43,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:38:43,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:38:43,350 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:38:43,351 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:38:43,351 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:38:43,351 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:38:43,351 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:38:43,351 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:38:43,352 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:38:43,352 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:38:43,352 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:38:43,352 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:38:43,352 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:38:43,353 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:38:43,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:38:43,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:38:43,354 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:38:43,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:38:43,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:38:43,354 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:38:43,354 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:38:43,354 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:38:43,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:38:43,355 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:38:43,355 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:38:43,355 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:38:43,355 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:38:43,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:38:43,356 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:38:43,356 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:38:43,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:38:43,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:38:43,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:38:43,356 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:38:43,356 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:38:43,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:38:43,357 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:38:43,357 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:38:43,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:38:43,357 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_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/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 -> 9deea958caebdff7c89a17deb67516eff149386872824a7682accca78686b765 [2024-11-14 04:38:43,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:38:43,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:38:43,781 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:38:43,783 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:38:43,783 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:38:43,785 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec0_product19.cil.c Unable to find full path for "g++" [2024-11-14 04:38:45,861 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:38:46,441 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:38:46,442 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c [2024-11-14 04:38:46,481 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/data/af5e3c85d/b9833ec7fcec4e78ad6f1fdc8e8a530d/FLAG74b6d4285 [2024-11-14 04:38:46,514 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/data/af5e3c85d/b9833ec7fcec4e78ad6f1fdc8e8a530d [2024-11-14 04:38:46,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:38:46,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:38:46,527 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:38:46,528 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:38:46,534 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:38:46,535 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:38:46" (1/1) ... [2024-11-14 04:38:46,539 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304f2658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:46, skipping insertion in model container [2024-11-14 04:38:46,539 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:38:46" (1/1) ... [2024-11-14 04:38:46,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:38:47,384 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_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c[39319,39332] [2024-11-14 04:38:47,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:38:47,576 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:38:47,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-14 04:38:47,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [167] [2024-11-14 04:38:47,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [467] [2024-11-14 04:38:47,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [505] [2024-11-14 04:38:47,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [797] [2024-11-14 04:38:47,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1864] [2024-11-14 04:38:47,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1873] [2024-11-14 04:38:47,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1890] [2024-11-14 04:38:47,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [2106] [2024-11-14 04:38:47,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2125] [2024-11-14 04:38:47,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2491] [2024-11-14 04:38:47,748 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_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/sv-benchmarks/c/product-lines/email_spec0_product19.cil.c[39319,39332] [2024-11-14 04:38:47,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:38:47,873 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:38:47,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47 WrapperNode [2024-11-14 04:38:47,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:38:47,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:38:47,875 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:38:47,875 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:38:47,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47" (1/1) ... [2024-11-14 04:38:47,920 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47" (1/1) ... [2024-11-14 04:38:47,987 INFO L138 Inliner]: procedures = 127, calls = 184, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1001 [2024-11-14 04:38:47,988 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:38:47,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:38:47,989 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:38:47,989 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:38:47,997 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47" (1/1) ... [2024-11-14 04:38:47,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47" (1/1) ... [2024-11-14 04:38:48,003 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47" (1/1) ... [2024-11-14 04:38:48,003 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47" (1/1) ... [2024-11-14 04:38:48,041 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47" (1/1) ... [2024-11-14 04:38:48,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47" (1/1) ... [2024-11-14 04:38:48,065 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47" (1/1) ... [2024-11-14 04:38:48,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47" (1/1) ... [2024-11-14 04:38:48,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:38:48,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:38:48,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:38:48,076 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:38:48,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47" (1/1) ... [2024-11-14 04:38:48,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:38:48,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:38:48,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:38:48,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:38:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 04:38:48,178 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 04:38:48,178 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 04:38:48,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 04:38:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-14 04:38:48,179 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-14 04:38:48,179 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 04:38:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 04:38:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-14 04:38:48,180 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-14 04:38:48,180 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 04:38:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 04:38:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-14 04:38:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-14 04:38:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 04:38:48,181 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 04:38:48,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:38:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-14 04:38:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-14 04:38:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 04:38:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 04:38:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 04:38:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 04:38:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 04:38:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 04:38:48,182 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 04:38:48,182 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 04:38:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 04:38:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 04:38:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 04:38:48,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 04:38:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:38:48,183 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 04:38:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 04:38:48,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:38:48,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:38:48,490 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:38:48,493 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:38:49,843 INFO L? ?]: Removed 433 outVars from TransFormulas that were not future-live. [2024-11-14 04:38:49,843 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:38:50,663 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:38:50,663 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:38:50,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:38:50 BoogieIcfgContainer [2024-11-14 04:38:50,664 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:38:50,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:38:50,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:38:50,672 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:38:50,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:38:46" (1/3) ... [2024-11-14 04:38:50,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2938c7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:38:50, skipping insertion in model container [2024-11-14 04:38:50,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:38:47" (2/3) ... [2024-11-14 04:38:50,674 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2938c7dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:38:50, skipping insertion in model container [2024-11-14 04:38:50,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:38:50" (3/3) ... [2024-11-14 04:38:50,675 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product19.cil.c [2024-11-14 04:38:50,695 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:38:50,699 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec0_product19.cil.c that has 17 procedures, 150 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:38:50,774 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:38:50,793 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;@4cf572ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:38:50,793 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:38:50,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 92 states have internal predecessors, (122), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-14 04:38:50,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-14 04:38:50,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:38:50,817 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 04:38:50,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:38:50,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:38:50,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1475356144, now seen corresponding path program 1 times [2024-11-14 04:38:50,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:38:50,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754365898] [2024-11-14 04:38:50,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:50,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:38:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:51,442 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:38:51,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:38:51,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754365898] [2024-11-14 04:38:51,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754365898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:38:51,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:38:51,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:38:51,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271539117] [2024-11-14 04:38:51,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:38:51,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:38:51,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:38:51,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:38:51,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:38:51,491 INFO L87 Difference]: Start difference. First operand has 150 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 92 states have internal predecessors, (122), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 04:38:51,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:38:51,654 INFO L93 Difference]: Finished difference Result 217 states and 290 transitions. [2024-11-14 04:38:51,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:38:51,661 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 04:38:51,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:38:51,674 INFO L225 Difference]: With dead ends: 217 [2024-11-14 04:38:51,675 INFO L226 Difference]: Without dead ends: 147 [2024-11-14 04:38:51,681 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 04:38:51,689 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:38:51,690 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:38:51,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-14 04:38:51,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-14 04:38:51,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 89 states have internal predecessors, (116), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 04:38:51,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 199 transitions. [2024-11-14 04:38:51,761 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 199 transitions. Word has length 64 [2024-11-14 04:38:51,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:38:51,763 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 199 transitions. [2024-11-14 04:38:51,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 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 04:38:51,763 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 199 transitions. [2024-11-14 04:38:51,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 04:38:51,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:38:51,768 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-14 04:38:51,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:38:51,768 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:38:51,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:38:51,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1825316052, now seen corresponding path program 1 times [2024-11-14 04:38:51,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:38:51,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601225057] [2024-11-14 04:38:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:51,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:38:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:52,152 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:38:52,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:38:52,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601225057] [2024-11-14 04:38:52,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601225057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:38:52,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:38:52,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:38:52,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297824951] [2024-11-14 04:38:52,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:38:52,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:38:52,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:38:52,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:38:52,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:38:52,156 INFO L87 Difference]: Start difference. First operand 147 states and 199 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 04:38:52,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:38:52,372 INFO L93 Difference]: Finished difference Result 213 states and 278 transitions. [2024-11-14 04:38:52,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:38:52,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 04:38:52,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:38:52,378 INFO L225 Difference]: With dead ends: 213 [2024-11-14 04:38:52,378 INFO L226 Difference]: Without dead ends: 149 [2024-11-14 04:38:52,379 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 04:38:52,381 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:38:52,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:38:52,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-14 04:38:52,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2024-11-14 04:38:52,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 90 states have (on average 1.3111111111111111) internal successors, (118), 91 states have internal predecessors, (118), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 04:38:52,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 201 transitions. [2024-11-14 04:38:52,418 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 201 transitions. Word has length 65 [2024-11-14 04:38:52,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:38:52,419 INFO L471 AbstractCegarLoop]: Abstraction has 149 states and 201 transitions. [2024-11-14 04:38:52,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 04:38:52,419 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 201 transitions. [2024-11-14 04:38:52,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-14 04:38:52,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:38:52,426 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 04:38:52,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:38:52,426 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:38:52,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:38:52,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1122342459, now seen corresponding path program 1 times [2024-11-14 04:38:52,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:38:52,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379787279] [2024-11-14 04:38:52,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:52,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:38:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:52,677 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:38:52,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:38:52,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379787279] [2024-11-14 04:38:52,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379787279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:38:52,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:38:52,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:38:52,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501861487] [2024-11-14 04:38:52,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:38:52,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:38:52,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:38:52,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:38:52,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:38:52,681 INFO L87 Difference]: Start difference. First operand 149 states and 201 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 04:38:52,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:38:52,889 INFO L93 Difference]: Finished difference Result 328 states and 461 transitions. [2024-11-14 04:38:52,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:38:52,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 04:38:52,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:38:52,894 INFO L225 Difference]: With dead ends: 328 [2024-11-14 04:38:52,897 INFO L226 Difference]: Without dead ends: 197 [2024-11-14 04:38:52,898 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 04:38:52,899 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 57 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:38:52,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 346 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 04:38:52,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-14 04:38:52,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 192. [2024-11-14 04:38:52,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 122 states have (on average 1.401639344262295) internal successors, (171), 123 states have internal predecessors, (171), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-14 04:38:52,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 276 transitions. [2024-11-14 04:38:52,937 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 276 transitions. Word has length 70 [2024-11-14 04:38:52,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:38:52,938 INFO L471 AbstractCegarLoop]: Abstraction has 192 states and 276 transitions. [2024-11-14 04:38:52,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 04:38:52,939 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 276 transitions. [2024-11-14 04:38:52,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 04:38:52,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:38:52,942 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-14 04:38:52,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:38:52,945 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:38:52,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:38:52,946 INFO L85 PathProgramCache]: Analyzing trace with hash -690323579, now seen corresponding path program 1 times [2024-11-14 04:38:52,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:38:52,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616354528] [2024-11-14 04:38:52,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:52,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:38:53,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:53,328 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:38:53,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:38:53,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616354528] [2024-11-14 04:38:53,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616354528] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:38:53,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338921160] [2024-11-14 04:38:53,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:38:53,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:38:53,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:38:53,333 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:38:53,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:38:53,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:38:53,924 INFO L255 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:38:53,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:38:54,029 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:38:54,030 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:38:54,192 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:38:54,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338921160] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:38:54,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2034378818] [2024-11-14 04:38:54,225 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-14 04:38:54,225 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:38:54,229 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:38:54,235 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:38:54,236 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:39:22,556 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 04:39:22,672 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-14 04:39:22,877 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:40:28,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2034378818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:40:28,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:40:28,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 04:40:28,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330033138] [2024-11-14 04:40:28,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:40:28,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 04:40:28,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:40:28,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 04:40:28,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 04:40:28,078 INFO L87 Difference]: Start difference. First operand 192 states and 276 transitions. Second operand has 23 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 14 states have internal predecessors, (35), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-14 04:40:38,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:40:38,960 INFO L93 Difference]: Finished difference Result 398 states and 588 transitions. [2024-11-14 04:40:38,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 04:40:38,961 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 14 states have internal predecessors, (35), 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 04:40:38,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:40:38,964 INFO L225 Difference]: With dead ends: 398 [2024-11-14 04:40:38,964 INFO L226 Difference]: Without dead ends: 224 [2024-11-14 04:40:38,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 68.3s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-14 04:40:38,966 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 25 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 1672 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2169 SdHoareTripleChecker+Invalid, 1682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1672 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-14 04:40:38,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2169 Invalid, 1682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1672 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-14 04:40:38,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-14 04:40:39,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 215. [2024-11-14 04:40:39,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 144 states have (on average 1.4166666666666667) internal successors, (204), 145 states have internal predecessors, (204), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-14 04:40:39,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 309 transitions. [2024-11-14 04:40:39,037 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 309 transitions. Word has length 71 [2024-11-14 04:40:39,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:40:39,038 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 309 transitions. [2024-11-14 04:40:39,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 14 states have internal predecessors, (35), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-14 04:40:39,038 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 309 transitions. [2024-11-14 04:40:39,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-14 04:40:39,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:40:39,045 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 04:40:39,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 04:40:39,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-14 04:40:39,246 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:40:39,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:40:39,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1275686769, now seen corresponding path program 1 times [2024-11-14 04:40:39,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:40:39,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051039895] [2024-11-14 04:40:39,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:39,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:40:39,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 04:40:39,381 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:40:39,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051039895] [2024-11-14 04:40:39,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051039895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:40:39,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:40:39,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:40:39,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005279979] [2024-11-14 04:40:39,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:40:39,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:40:39,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:40:39,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:40:39,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:40:39,383 INFO L87 Difference]: Start difference. First operand 215 states and 309 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 04:40:39,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:40:39,595 INFO L93 Difference]: Finished difference Result 523 states and 782 transitions. [2024-11-14 04:40:39,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:40:39,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 04:40:39,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:40:39,599 INFO L225 Difference]: With dead ends: 523 [2024-11-14 04:40:39,599 INFO L226 Difference]: Without dead ends: 332 [2024-11-14 04:40:39,600 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 04:40:39,601 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 55 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:40:39,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 355 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:40:39,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-14 04:40:39,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 327. [2024-11-14 04:40:39,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 231 states have (on average 1.4718614718614718) internal successors, (340), 232 states have internal predecessors, (340), 78 states have call successors, (78), 17 states have call predecessors, (78), 17 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-14 04:40:39,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 495 transitions. [2024-11-14 04:40:39,740 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 495 transitions. Word has length 76 [2024-11-14 04:40:39,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:40:39,742 INFO L471 AbstractCegarLoop]: Abstraction has 327 states and 495 transitions. [2024-11-14 04:40:39,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 04:40:39,742 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 495 transitions. [2024-11-14 04:40:39,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 04:40:39,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:40:39,748 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-11-14 04:40:39,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:40:39,748 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:40:39,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:40:39,749 INFO L85 PathProgramCache]: Analyzing trace with hash -56809162, now seen corresponding path program 1 times [2024-11-14 04:40:39,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:40:39,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036136917] [2024-11-14 04:40:39,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:39,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:40:39,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:40,012 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 04:40:40,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:40:40,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036136917] [2024-11-14 04:40:40,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036136917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:40:40,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235384401] [2024-11-14 04:40:40,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:40:40,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:40:40,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:40:40,016 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:40:40,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:40:40,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:40:40,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:40:40,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:40:40,492 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 04:40:40,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:40:40,606 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 04:40:40,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235384401] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:40:40,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [133402591] [2024-11-14 04:40:40,609 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-14 04:40:40,610 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:40:40,611 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:40:40,611 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:40:40,612 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:41:12,311 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 04:41:12,435 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-14 04:41:13,421 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:41:35,480 WARN L286 SmtUtils]: Spent 6.96s on a formula simplification. DAG size of input: 431 DAG size of output: 432 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:41:45,752 WARN L286 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 455 DAG size of output: 451 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:42:25,283 WARN L286 SmtUtils]: Spent 10.14s on a formula simplification. DAG size of input: 448 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:42:36,290 WARN L286 SmtUtils]: Spent 9.84s on a formula simplification. DAG size of input: 449 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:42:47,343 WARN L286 SmtUtils]: Spent 9.98s on a formula simplification. DAG size of input: 453 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:42:59,607 WARN L286 SmtUtils]: Spent 9.85s on a formula simplification. DAG size of input: 453 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:43:12,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [133402591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:43:12,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:43:12,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-14 04:43:12,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834609777] [2024-11-14 04:43:12,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:43:12,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 04:43:12,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:43:12,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 04:43:12,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 04:43:12,172 INFO L87 Difference]: Start difference. First operand 327 states and 495 transitions. Second operand has 26 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 states have internal predecessors, (38), 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 04:43:23,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:43:23,078 INFO L93 Difference]: Finished difference Result 662 states and 1029 transitions. [2024-11-14 04:43:23,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 04:43:23,079 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 states have internal predecessors, (38), 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 04:43:23,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:43:23,082 INFO L225 Difference]: With dead ends: 662 [2024-11-14 04:43:23,082 INFO L226 Difference]: Without dead ends: 398 [2024-11-14 04:43:23,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 202 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 118.7s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 04:43:23,084 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 41 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 2137 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 2145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-14 04:43:23,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 2416 Invalid, 2145 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2137 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2024-11-14 04:43:23,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2024-11-14 04:43:23,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 341. [2024-11-14 04:43:23,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 243 states have (on average 1.4691358024691359) internal successors, (357), 244 states have internal predecessors, (357), 79 states have call successors, (79), 18 states have call predecessors, (79), 18 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-14 04:43:23,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 514 transitions. [2024-11-14 04:43:23,170 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 514 transitions. Word has length 77 [2024-11-14 04:43:23,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:43:23,170 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 514 transitions. [2024-11-14 04:43:23,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.235294117647059) internal successors, (38), 16 states have internal predecessors, (38), 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 04:43:23,171 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 514 transitions. [2024-11-14 04:43:23,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 04:43:23,173 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:43:23,173 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:43:23,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 04:43:23,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 04:43:23,381 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:43:23,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:43:23,382 INFO L85 PathProgramCache]: Analyzing trace with hash 75241787, now seen corresponding path program 1 times [2024-11-14 04:43:23,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:43:23,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980571979] [2024-11-14 04:43:23,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:23,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:43:23,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:23,587 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:43:23,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:43:23,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980571979] [2024-11-14 04:43:23,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980571979] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:43:23,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1263430662] [2024-11-14 04:43:23,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:43:23,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:43:23,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:43:23,596 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:43:23,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 04:43:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:43:23,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:43:23,996 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:43:24,022 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:43:24,023 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:43:24,120 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:43:24,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1263430662] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:43:24,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1545722449] [2024-11-14 04:43:24,123 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2024-11-14 04:43:24,124 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:43:24,124 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:43:24,124 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:43:24,124 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:44:13,244 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 04:44:13,350 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 477 for LOIs [2024-11-14 04:44:14,394 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 422 for LOIs [2024-11-14 04:44:14,658 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-14 04:44:14,796 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 486 for LOIs [2024-11-14 04:44:15,671 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:45:15,426 WARN L286 SmtUtils]: Spent 11.12s on a formula simplification. DAG size of input: 506 DAG size of output: 501 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:45:27,735 WARN L286 SmtUtils]: Spent 11.47s on a formula simplification. DAG size of input: 507 DAG size of output: 501 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:46:21,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1545722449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:46:21,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:46:21,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-14 04:46:21,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398297592] [2024-11-14 04:46:21,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:46:21,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 04:46:21,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:46:21,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 04:46:21,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:46:21,599 INFO L87 Difference]: Start difference. First operand 341 states and 514 transitions. Second operand has 33 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-14 04:46:41,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:46:41,656 INFO L93 Difference]: Finished difference Result 687 states and 1064 transitions. [2024-11-14 04:46:41,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 04:46:41,657 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 80 [2024-11-14 04:46:41,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:46:41,661 INFO L225 Difference]: With dead ends: 687 [2024-11-14 04:46:41,662 INFO L226 Difference]: Without dead ends: 423 [2024-11-14 04:46:41,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 129.6s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 04:46:41,664 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 100 mSDsluCounter, 2356 mSDsCounter, 0 mSdLazyCounter, 2659 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 2507 SdHoareTripleChecker+Invalid, 2669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:46:41,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 2507 Invalid, 2669 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2659 Invalid, 0 Unknown, 0 Unchecked, 16.1s Time] [2024-11-14 04:46:41,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-14 04:46:41,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 377. [2024-11-14 04:46:41,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 273 states have (on average 1.4615384615384615) internal successors, (399), 274 states have internal predecessors, (399), 82 states have call successors, (82), 21 states have call predecessors, (82), 21 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-14 04:46:41,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 562 transitions. [2024-11-14 04:46:41,831 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 562 transitions. Word has length 80 [2024-11-14 04:46:41,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:46:41,831 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 562 transitions. [2024-11-14 04:46:41,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2024-11-14 04:46:41,832 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 562 transitions. [2024-11-14 04:46:41,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-14 04:46:41,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:46:41,835 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:46:41,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 04:46:42,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 04:46:42,036 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:46:42,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:46:42,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1055834343, now seen corresponding path program 1 times [2024-11-14 04:46:42,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:46:42,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719007187] [2024-11-14 04:46:42,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:42,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:46:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:42,200 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:46:42,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:46:42,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719007187] [2024-11-14 04:46:42,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719007187] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:46:42,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582742249] [2024-11-14 04:46:42,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:46:42,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:46:42,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:46:42,204 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:46:42,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:46:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:46:42,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:46:42,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:46:42,709 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:46:42,710 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:46:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 04:46:42,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582742249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:46:42,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [650212688] [2024-11-14 04:46:42,831 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-14 04:46:42,831 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:46:42,832 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:46:42,832 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:46:42,833 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:47:19,886 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 04:47:19,990 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-14 04:47:20,132 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:48:52,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [650212688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:48:52,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:48:52,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 04:48:52,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203396435] [2024-11-14 04:48:52,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:48:52,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 04:48:52,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:48:52,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 04:48:52,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 04:48:52,443 INFO L87 Difference]: Start difference. First operand 377 states and 562 transitions. Second operand has 27 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-14 04:49:04,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:49:04,089 INFO L93 Difference]: Finished difference Result 689 states and 1055 transitions. [2024-11-14 04:49:04,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 04:49:04,090 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 79 [2024-11-14 04:49:04,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:49:04,093 INFO L225 Difference]: With dead ends: 689 [2024-11-14 04:49:04,094 INFO L226 Difference]: Without dead ends: 425 [2024-11-14 04:49:04,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 95.6s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 04:49:04,096 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 17 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 1853 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 1862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:49:04,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1947 Invalid, 1862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1853 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-14 04:49:04,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-11-14 04:49:04,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 397. [2024-11-14 04:49:04,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 293 states have (on average 1.4641638225255973) internal successors, (429), 294 states have internal predecessors, (429), 82 states have call successors, (82), 21 states have call predecessors, (82), 21 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-14 04:49:04,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 592 transitions. [2024-11-14 04:49:04,265 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 592 transitions. Word has length 79 [2024-11-14 04:49:04,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:49:04,266 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 592 transitions. [2024-11-14 04:49:04,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.263157894736842) internal successors, (43), 18 states have internal predecessors, (43), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2024-11-14 04:49:04,266 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 592 transitions. [2024-11-14 04:49:04,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-14 04:49:04,269 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:49:04,269 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2024-11-14 04:49:04,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 04:49:04,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 04:49:04,473 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:49:04,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:49:04,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1172770154, now seen corresponding path program 1 times [2024-11-14 04:49:04,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:49:04,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713100608] [2024-11-14 04:49:04,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:49:04,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:49:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:49:04,684 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-14 04:49:04,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:49:04,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713100608] [2024-11-14 04:49:04,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713100608] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:49:04,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738922536] [2024-11-14 04:49:04,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:49:04,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:49:04,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:49:04,689 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:49:04,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:49:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:49:05,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:49:05,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:49:05,115 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 04:49:05,115 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:49:05,225 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 04:49:05,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738922536] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:49:05,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [140297688] [2024-11-14 04:49:05,228 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-14 04:49:05,228 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:49:05,228 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:49:05,228 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:49:05,229 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:49:34,683 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 04:49:34,790 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-14 04:49:35,854 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:49:59,157 WARN L286 SmtUtils]: Spent 6.99s on a formula simplification. DAG size of input: 431 DAG size of output: 432 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:50:09,578 WARN L286 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 455 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:50:52,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [140297688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:50:52,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:50:52,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [6, 5, 5] total 35 [2024-11-14 04:50:52,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696124060] [2024-11-14 04:50:52,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:50:52,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 04:50:52,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:50:52,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 04:50:52,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1094, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 04:50:52,457 INFO L87 Difference]: Start difference. First operand 397 states and 592 transitions. Second operand has 27 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 17 states have internal predecessors, (39), 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 04:51:05,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:51:05,151 INFO L93 Difference]: Finished difference Result 817 states and 1275 transitions. [2024-11-14 04:51:05,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-14 04:51:05,151 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 17 states have internal predecessors, (39), 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 82 [2024-11-14 04:51:05,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:51:05,155 INFO L225 Difference]: With dead ends: 817 [2024-11-14 04:51:05,155 INFO L226 Difference]: Without dead ends: 513 [2024-11-14 04:51:05,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 216 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 79.6s TimeCoverageRelationStatistics Valid=111, Invalid=1221, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 04:51:05,157 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 72 mSDsluCounter, 2325 mSDsCounter, 0 mSdLazyCounter, 2441 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 2505 SdHoareTripleChecker+Invalid, 2464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-11-14 04:51:05,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 2505 Invalid, 2464 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 2441 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2024-11-14 04:51:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2024-11-14 04:51:05,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 410. [2024-11-14 04:51:05,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 303 states have (on average 1.462046204620462) internal successors, (443), 305 states have internal predecessors, (443), 84 states have call successors, (84), 22 states have call predecessors, (84), 22 states have return successors, (83), 82 states have call predecessors, (83), 83 states have call successors, (83) [2024-11-14 04:51:05,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 610 transitions. [2024-11-14 04:51:05,301 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 610 transitions. Word has length 82 [2024-11-14 04:51:05,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:51:05,301 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 610 transitions. [2024-11-14 04:51:05,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 17 states have internal predecessors, (39), 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 04:51:05,301 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 610 transitions. [2024-11-14 04:51:05,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 04:51:05,303 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:51:05,304 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 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] [2024-11-14 04:51:05,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-14 04:51:05,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-14 04:51:05,504 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:51:05,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:51:05,504 INFO L85 PathProgramCache]: Analyzing trace with hash -759851505, now seen corresponding path program 1 times [2024-11-14 04:51:05,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:51:05,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035637283] [2024-11-14 04:51:05,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:51:05,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:51:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:51:05,676 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-14 04:51:05,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:51:05,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035637283] [2024-11-14 04:51:05,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035637283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:51:05,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800205202] [2024-11-14 04:51:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:51:05,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:51:05,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:51:05,682 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:51:05,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd8f2e2e-4087-4fa9-89a0-8c78cb02bb19/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:51:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:51:06,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:51:06,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:51:06,082 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 04:51:06,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:51:06,182 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 04:51:06,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800205202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:51:06,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [120674086] [2024-11-14 04:51:06,184 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-14 04:51:06,185 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:51:06,185 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:51:06,185 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:51:06,185 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:51:43,235 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 04:51:43,339 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-14 04:51:44,329 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:52:06,632 WARN L286 SmtUtils]: Spent 6.92s on a formula simplification. DAG size of input: 431 DAG size of output: 432 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:52:17,047 WARN L286 SmtUtils]: Spent 9.89s on a formula simplification. DAG size of input: 455 DAG size of output: 451 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:52:59,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [120674086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:52:59,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:52:59,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [6, 5, 5] total 35 [2024-11-14 04:52:59,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737285847] [2024-11-14 04:52:59,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:52:59,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 04:52:59,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:52:59,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 04:52:59,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=1092, Unknown=0, NotChecked=0, Total=1190 [2024-11-14 04:52:59,976 INFO L87 Difference]: Start difference. First operand 410 states and 610 transitions. Second operand has 27 states, 18 states have (on average 2.1666666666666665) internal successors, (39), 17 states have internal predecessors, (39), 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)