./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec9_product22.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_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/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_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec9_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/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_e4bb6187-71d3-4a3c-bb03-a2376c80c232/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 0fc665e3899dd29ca5bf696fac98a46e2d1733c214ee43bc57c8fd7a101d2539 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:35:03,241 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:35:03,311 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-13 23:35:03,316 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:35:03,317 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 23:35:03,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:35:03,348 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 23:35:03,348 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 23:35:03,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:35:03,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 23:35:03,349 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-13 23:35:03,349 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-13 23:35:03,349 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-13 23:35:03,351 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-13 23:35:03,351 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-13 23:35:03,351 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-13 23:35:03,352 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-13 23:35:03,353 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-13 23:35:03,353 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-13 23:35:03,353 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-13 23:35:03,353 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-13 23:35:03,354 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-13 23:35:03,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:35:03,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:35:03,354 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:35:03,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:35:03,354 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:35:03,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:35:03,355 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:35:03,355 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:35:03,355 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:35:03,355 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:35:03,356 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:35:03,356 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:35:03,356 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:35:03,357 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:35:03,357 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 23:35:03,357 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 23:35:03,357 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:35:03,357 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:35:03,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:35:03,358 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:35:03,358 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-13 23:35:03,358 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:35:03,358 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 23:35:03,358 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-13 23:35:03,358 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 23:35:03,358 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_e4bb6187-71d3-4a3c-bb03-a2376c80c232/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 -> 0fc665e3899dd29ca5bf696fac98a46e2d1733c214ee43bc57c8fd7a101d2539 [2024-11-13 23:35:03,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:35:03,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:35:03,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:35:03,681 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:35:03,681 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:35:03,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec9_product22.cil.c Unable to find full path for "g++" [2024-11-13 23:35:05,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:35:06,082 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:35:06,084 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/sv-benchmarks/c/product-lines/email_spec9_product22.cil.c [2024-11-13 23:35:06,111 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/data/a213b7831/39c961447da0424494de3d3dbd41785a/FLAG801518e8f [2024-11-13 23:35:06,136 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/data/a213b7831/39c961447da0424494de3d3dbd41785a [2024-11-13 23:35:06,139 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:35:06,140 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:35:06,141 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:35:06,143 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:35:06,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:35:06,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:35:06" (1/1) ... [2024-11-13 23:35:06,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652c32de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:06, skipping insertion in model container [2024-11-13 23:35:06,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:35:06" (1/1) ... [2024-11-13 23:35:06,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:35:06,836 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_e4bb6187-71d3-4a3c-bb03-a2376c80c232/sv-benchmarks/c/product-lines/email_spec9_product22.cil.c[51984,51997] [2024-11-13 23:35:06,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:35:06,903 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:35:06,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [48] [2024-11-13 23:35:06,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [172] [2024-11-13 23:35:06,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1252] [2024-11-13 23:35:06,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1481] [2024-11-13 23:35:06,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1886] [2024-11-13 23:35:06,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2191] [2024-11-13 23:35:06,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2479] [2024-11-13 23:35:06,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2488] [2024-11-13 23:35:06,917 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptForward_spec.i","") [2854] [2024-11-13 23:35:06,917 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2896] [2024-11-13 23:35:06,917 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2913] [2024-11-13 23:35:07,068 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_e4bb6187-71d3-4a3c-bb03-a2376c80c232/sv-benchmarks/c/product-lines/email_spec9_product22.cil.c[51984,51997] [2024-11-13 23:35:07,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:35:07,144 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:35:07,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07 WrapperNode [2024-11-13 23:35:07,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:35:07,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:35:07,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:35:07,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:35:07,155 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07" (1/1) ... [2024-11-13 23:35:07,178 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07" (1/1) ... [2024-11-13 23:35:07,227 INFO L138 Inliner]: procedures = 129, calls = 193, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1037 [2024-11-13 23:35:07,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:35:07,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:35:07,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:35:07,228 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:35:07,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07" (1/1) ... [2024-11-13 23:35:07,235 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07" (1/1) ... [2024-11-13 23:35:07,241 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07" (1/1) ... [2024-11-13 23:35:07,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07" (1/1) ... [2024-11-13 23:35:07,259 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07" (1/1) ... [2024-11-13 23:35:07,272 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07" (1/1) ... [2024-11-13 23:35:07,280 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07" (1/1) ... [2024-11-13 23:35:07,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07" (1/1) ... [2024-11-13 23:35:07,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:35:07,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:35:07,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:35:07,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:35:07,305 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07" (1/1) ... [2024-11-13 23:35:07,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-13 23:35:07,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:35:07,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-13 23:35:07,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-13 23:35:07,390 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-13 23:35:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-13 23:35:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-13 23:35:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-13 23:35:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-13 23:35:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-13 23:35:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-13 23:35:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-13 23:35:07,391 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-13 23:35:07,391 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-13 23:35:07,392 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-13 23:35:07,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-13 23:35:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-13 23:35:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-13 23:35:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-13 23:35:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-13 23:35:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2024-11-13 23:35:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2024-11-13 23:35:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-13 23:35:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-13 23:35:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:35:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-13 23:35:07,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-13 23:35:07,393 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-13 23:35:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-13 23:35:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-13 23:35:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-13 23:35:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-13 23:35:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-13 23:35:07,394 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-13 23:35:07,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-13 23:35:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-13 23:35:07,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-13 23:35:07,395 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-13 23:35:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-13 23:35:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:35:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-13 23:35:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-13 23:35:07,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:35:07,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:35:07,681 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:35:07,684 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:35:08,648 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2024-11-13 23:35:08,648 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:35:09,397 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:35:09,398 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 23:35:09,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:35:09 BoogieIcfgContainer [2024-11-13 23:35:09,398 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:35:09,402 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 23:35:09,402 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 23:35:09,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 23:35:09,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 11:35:06" (1/3) ... [2024-11-13 23:35:09,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6951345d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:35:09, skipping insertion in model container [2024-11-13 23:35:09,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:35:07" (2/3) ... [2024-11-13 23:35:09,410 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6951345d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 11:35:09, skipping insertion in model container [2024-11-13 23:35:09,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:35:09" (3/3) ... [2024-11-13 23:35:09,412 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec9_product22.cil.c [2024-11-13 23:35:09,431 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 23:35:09,435 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec9_product22.cil.c that has 19 procedures, 170 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 23:35:09,517 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 23:35:09,534 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;@73f7cbd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 23:35:09,535 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 23:35:09,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-13 23:35:09,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 23:35:09,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:09,552 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:35:09,553 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:35:09,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:09,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1329030518, now seen corresponding path program 1 times [2024-11-13 23:35:09,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:09,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586093012] [2024-11-13 23:35:09,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:09,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:10,015 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:35:10,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:10,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586093012] [2024-11-13 23:35:10,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586093012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:35:10,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:35:10,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 23:35:10,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252589209] [2024-11-13 23:35:10,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:35:10,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 23:35:10,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:10,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 23:35:10,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 23:35:10,056 INFO L87 Difference]: Start difference. First operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 23:35:10,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:10,213 INFO L93 Difference]: Finished difference Result 257 states and 348 transitions. [2024-11-13 23:35:10,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 23:35:10,216 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2024-11-13 23:35:10,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:10,227 INFO L225 Difference]: With dead ends: 257 [2024-11-13 23:35:10,228 INFO L226 Difference]: Without dead ends: 167 [2024-11-13 23:35:10,236 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 [2024-11-13 23:35:10,241 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:10,242 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 198 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:35:10,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-13 23:35:10,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-13 23:35:10,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 98 states have (on average 1.316326530612245) internal successors, (129), 101 states have internal predecessors, (129), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-13 23:35:10,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 228 transitions. [2024-11-13 23:35:10,291 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 228 transitions. Word has length 56 [2024-11-13 23:35:10,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:10,292 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 228 transitions. [2024-11-13 23:35:10,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 23:35:10,293 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 228 transitions. [2024-11-13 23:35:10,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-13 23:35:10,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:10,296 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:35:10,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 23:35:10,296 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:35:10,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:10,297 INFO L85 PathProgramCache]: Analyzing trace with hash 16589354, now seen corresponding path program 1 times [2024-11-13 23:35:10,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:10,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450773109] [2024-11-13 23:35:10,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:10,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:10,747 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:35:10,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:10,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450773109] [2024-11-13 23:35:10,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450773109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:35:10,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:35:10,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:35:10,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80166798] [2024-11-13 23:35:10,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:35:10,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:35:10,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:10,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:35:10,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:35:10,753 INFO L87 Difference]: Start difference. First operand 167 states and 228 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 23:35:10,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:10,926 INFO L93 Difference]: Finished difference Result 253 states and 336 transitions. [2024-11-13 23:35:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:35:10,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2024-11-13 23:35:10,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:10,929 INFO L225 Difference]: With dead ends: 253 [2024-11-13 23:35:10,929 INFO L226 Difference]: Without dead ends: 169 [2024-11-13 23:35:10,930 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 [2024-11-13 23:35:10,933 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:10,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:35:10,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2024-11-13 23:35:10,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2024-11-13 23:35:10,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 100 states have (on average 1.31) internal successors, (131), 103 states have internal predecessors, (131), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-13 23:35:10,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 230 transitions. [2024-11-13 23:35:10,971 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 230 transitions. Word has length 57 [2024-11-13 23:35:10,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:10,971 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 230 transitions. [2024-11-13 23:35:10,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 23:35:10,972 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 230 transitions. [2024-11-13 23:35:10,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-13 23:35:10,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:10,974 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:35:10,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 23:35:10,974 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:35:10,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:10,975 INFO L85 PathProgramCache]: Analyzing trace with hash 677607197, now seen corresponding path program 1 times [2024-11-13 23:35:10,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:10,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506268007] [2024-11-13 23:35:10,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:10,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:11,148 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:35:11,149 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:11,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506268007] [2024-11-13 23:35:11,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506268007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:35:11,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:35:11,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:35:11,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170652229] [2024-11-13 23:35:11,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:35:11,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:35:11,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:35:11,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:35:11,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:35:11,153 INFO L87 Difference]: Start difference. First operand 169 states and 230 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 23:35:11,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:35:11,311 INFO L93 Difference]: Finished difference Result 368 states and 519 transitions. [2024-11-13 23:35:11,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:35:11,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2024-11-13 23:35:11,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:35:11,316 INFO L225 Difference]: With dead ends: 368 [2024-11-13 23:35:11,319 INFO L226 Difference]: Without dead ends: 217 [2024-11-13 23:35:11,320 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 [2024-11-13 23:35:11,321 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 57 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:35:11,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 383 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:35:11,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-13 23:35:11,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 212. [2024-11-13 23:35:11,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 132 states have (on average 1.393939393939394) internal successors, (184), 135 states have internal predecessors, (184), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 23:35:11,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 305 transitions. [2024-11-13 23:35:11,359 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 305 transitions. Word has length 62 [2024-11-13 23:35:11,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:35:11,360 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 305 transitions. [2024-11-13 23:35:11,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-13 23:35:11,360 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 305 transitions. [2024-11-13 23:35:11,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 23:35:11,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:35:11,366 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:35:11,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 23:35:11,367 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:35:11,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:35:11,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1684958757, now seen corresponding path program 1 times [2024-11-13 23:35:11,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:35:11,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23884480] [2024-11-13 23:35:11,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:11,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:35:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:11,627 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:35:11,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:35:11,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23884480] [2024-11-13 23:35:11,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23884480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:35:11,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628081379] [2024-11-13 23:35:11,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:35:11,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:35:11,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:35:11,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:35:11,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 23:35:12,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:35:12,061 INFO L255 TraceCheckSpWp]: Trace formula consists of 796 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:35:12,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:35:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:35:12,121 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:35:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:35:12,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628081379] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:35:12,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [653760317] [2024-11-13 23:35:12,249 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2024-11-13 23:35:12,249 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:35:12,252 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:35:12,257 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:35:12,257 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:35:38,221 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-13 23:35:38,330 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2024-11-13 23:35:38,465 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:36:34,091 WARN L286 SmtUtils]: Spent 9.69s on a formula simplification. DAG size of input: 453 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:36:46,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [653760317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:36:46,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:36:46,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-13 23:36:46,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114742676] [2024-11-13 23:36:46,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:36:46,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-13 23:36:46,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:36:46,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-13 23:36:46,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-13 23:36:46,101 INFO L87 Difference]: Start difference. First operand 212 states and 305 transitions. Second operand has 23 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-13 23:36:52,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:36:52,998 INFO L93 Difference]: Finished difference Result 438 states and 646 transitions. [2024-11-13 23:36:52,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-13 23:36:52,999 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 63 [2024-11-13 23:36:52,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:36:53,002 INFO L225 Difference]: With dead ends: 438 [2024-11-13 23:36:53,002 INFO L226 Difference]: Without dead ends: 244 [2024-11-13 23:36:53,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 163 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 67.6s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-13 23:36:53,004 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 25 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2669 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-11-13 23:36:53,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2669 Invalid, 1732 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-11-13 23:36:53,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2024-11-13 23:36:53,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 235. [2024-11-13 23:36:53,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 154 states have (on average 1.4090909090909092) internal successors, (217), 157 states have internal predecessors, (217), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 23:36:53,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 338 transitions. [2024-11-13 23:36:53,070 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 338 transitions. Word has length 63 [2024-11-13 23:36:53,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:36:53,073 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 338 transitions. [2024-11-13 23:36:53,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-13 23:36:53,074 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 338 transitions. [2024-11-13 23:36:53,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-13 23:36:53,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:36:53,076 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:36:53,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 23:36:53,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:36:53,277 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:36:53,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:36:53,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1878321517, now seen corresponding path program 1 times [2024-11-13 23:36:53,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:36:53,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221423289] [2024-11-13 23:36:53,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:53,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:36:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:36:53,373 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:36:53,374 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:36:53,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221423289] [2024-11-13 23:36:53,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221423289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:36:53,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:36:53,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:36:53,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866595928] [2024-11-13 23:36:53,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:36:53,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:36:53,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:36:53,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:36:53,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:36:53,375 INFO L87 Difference]: Start difference. First operand 235 states and 338 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 23:36:53,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:36:53,552 INFO L93 Difference]: Finished difference Result 563 states and 840 transitions. [2024-11-13 23:36:53,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:36:53,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 68 [2024-11-13 23:36:53,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:36:53,556 INFO L225 Difference]: With dead ends: 563 [2024-11-13 23:36:53,556 INFO L226 Difference]: Without dead ends: 352 [2024-11-13 23:36:53,557 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 [2024-11-13 23:36:53,558 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 55 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:36:53,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 405 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:36:53,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-13 23:36:53,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 347. [2024-11-13 23:36:53,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 241 states have (on average 1.4647302904564314) internal successors, (353), 244 states have internal predecessors, (353), 86 states have call successors, (86), 19 states have call predecessors, (86), 19 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-13 23:36:53,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 524 transitions. [2024-11-13 23:36:53,648 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 524 transitions. Word has length 68 [2024-11-13 23:36:53,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:36:53,649 INFO L471 AbstractCegarLoop]: Abstraction has 347 states and 524 transitions. [2024-11-13 23:36:53,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 23:36:53,649 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 524 transitions. [2024-11-13 23:36:53,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-13 23:36:53,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:36:53,652 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:36:53,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 23:36:53,652 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:36:53,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:36:53,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1616247176, now seen corresponding path program 1 times [2024-11-13 23:36:53,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:36:53,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5911975] [2024-11-13 23:36:53,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:53,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:36:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:36:53,835 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:36:53,835 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:36:53,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5911975] [2024-11-13 23:36:53,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5911975] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:36:53,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86347796] [2024-11-13 23:36:53,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:36:53,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:36:53,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:36:53,837 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:36:53,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 23:36:54,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:36:54,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:36:54,164 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:36:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:36:54,187 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:36:54,264 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 23:36:54,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86347796] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:36:54,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [505756343] [2024-11-13 23:36:54,267 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-13 23:36:54,267 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:36:54,268 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:36:54,268 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:36:54,268 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:37:23,817 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-13 23:37:23,916 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 437 for LOIs [2024-11-13 23:37:24,913 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:37:46,752 WARN L286 SmtUtils]: Spent 6.86s on a formula simplification. DAG size of input: 437 DAG size of output: 438 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:37:57,028 WARN L286 SmtUtils]: Spent 9.94s on a formula simplification. DAG size of input: 461 DAG size of output: 456 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:38:35,649 WARN L286 SmtUtils]: Spent 9.71s on a formula simplification. DAG size of input: 454 DAG size of output: 454 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:38:59,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [505756343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:38:59,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:38:59,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-13 23:38:59,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872409662] [2024-11-13 23:38:59,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:38:59,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-13 23:38:59,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:38:59,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-13 23:38:59,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-13 23:38:59,434 INFO L87 Difference]: Start difference. First operand 347 states and 524 transitions. Second operand has 26 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-13 23:39:10,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:39:10,192 INFO L93 Difference]: Finished difference Result 702 states and 1087 transitions. [2024-11-13 23:39:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-13 23:39:10,193 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 69 [2024-11-13 23:39:10,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:39:10,196 INFO L225 Difference]: With dead ends: 702 [2024-11-13 23:39:10,196 INFO L226 Difference]: Without dead ends: 418 [2024-11-13 23:39:10,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 178 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 94.5s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-13 23:39:10,198 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 41 mSDsluCounter, 2819 mSDsCounter, 0 mSdLazyCounter, 2406 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 2995 SdHoareTripleChecker+Invalid, 2414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-13 23:39:10,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 2995 Invalid, 2414 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2406 Invalid, 0 Unknown, 0 Unchecked, 10.5s Time] [2024-11-13 23:39:10,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-13 23:39:10,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 361. [2024-11-13 23:39:10,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 253 states have (on average 1.4624505928853755) internal successors, (370), 256 states have internal predecessors, (370), 87 states have call successors, (87), 20 states have call predecessors, (87), 20 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2024-11-13 23:39:10,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 543 transitions. [2024-11-13 23:39:10,305 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 543 transitions. Word has length 69 [2024-11-13 23:39:10,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:39:10,305 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 543 transitions. [2024-11-13 23:39:10,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-13 23:39:10,306 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 543 transitions. [2024-11-13 23:39:10,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-13 23:39:10,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:39:10,308 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:39:10,326 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 23:39:10,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-13 23:39:10,509 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:39:10,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:39:10,509 INFO L85 PathProgramCache]: Analyzing trace with hash 81884985, now seen corresponding path program 1 times [2024-11-13 23:39:10,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:39:10,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089763869] [2024-11-13 23:39:10,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:39:10,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:39:10,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:39:10,666 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:39:10,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:39:10,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089763869] [2024-11-13 23:39:10,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089763869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:39:10,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144018446] [2024-11-13 23:39:10,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:39:10,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:39:10,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:39:10,669 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:39:10,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 23:39:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:39:11,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:39:11,049 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:39:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:39:11,073 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:39:11,141 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:39:11,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144018446] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:39:11,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2132020949] [2024-11-13 23:39:11,144 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2024-11-13 23:39:11,144 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:39:11,144 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:39:11,144 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:39:11,145 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:40:16,207 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-13 23:40:16,309 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 483 for LOIs [2024-11-13 23:40:17,199 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 428 for LOIs [2024-11-13 23:40:17,527 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2024-11-13 23:40:17,626 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 492 for LOIs [2024-11-13 23:40:18,413 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:41:16,774 WARN L286 SmtUtils]: Spent 11.84s on a formula simplification. DAG size of input: 512 DAG size of output: 507 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:42:13,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2132020949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:42:13,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:42:13,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-13 23:42:13,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812054624] [2024-11-13 23:42:13,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:42:13,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-13 23:42:13,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:42:13,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-13 23:42:13,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 23:42:13,370 INFO L87 Difference]: Start difference. First operand 361 states and 543 transitions. Second operand has 33 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-13 23:42:28,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:42:28,066 INFO L93 Difference]: Finished difference Result 727 states and 1122 transitions. [2024-11-13 23:42:28,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-13 23:42:28,066 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 72 [2024-11-13 23:42:28,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:42:28,070 INFO L225 Difference]: With dead ends: 727 [2024-11-13 23:42:28,070 INFO L226 Difference]: Without dead ends: 443 [2024-11-13 23:42:28,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 180 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 114.9s TimeCoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-13 23:42:28,072 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 75 mSDsluCounter, 2977 mSDsCounter, 0 mSdLazyCounter, 2943 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 2952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2024-11-13 23:42:28,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 3151 Invalid, 2952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2943 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2024-11-13 23:42:28,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-13 23:42:28,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 397. [2024-11-13 23:42:28,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 283 states have (on average 1.4558303886925794) internal successors, (412), 286 states have internal predecessors, (412), 90 states have call successors, (90), 23 states have call predecessors, (90), 23 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-13 23:42:28,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 591 transitions. [2024-11-13 23:42:28,206 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 591 transitions. Word has length 72 [2024-11-13 23:42:28,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:42:28,207 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 591 transitions. [2024-11-13 23:42:28,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-13 23:42:28,207 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 591 transitions. [2024-11-13 23:42:28,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-13 23:42:28,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:42:28,209 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:42:28,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 23:42:28,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 23:42:28,410 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:42:28,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:42:28,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1131630240, now seen corresponding path program 1 times [2024-11-13 23:42:28,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:42:28,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665299247] [2024-11-13 23:42:28,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:28,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:42:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:42:28,572 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:42:28,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:42:28,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665299247] [2024-11-13 23:42:28,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665299247] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:42:28,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [523117775] [2024-11-13 23:42:28,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:42:28,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:42:28,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:42:28,575 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:42:28,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 23:42:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:42:28,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 23:42:28,903 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:42:28,938 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:42:28,939 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:42:29,018 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-13 23:42:29,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [523117775] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:42:29,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [878690556] [2024-11-13 23:42:29,021 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-13 23:42:29,021 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:42:29,021 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:42:29,021 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:42:29,022 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:43:00,711 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-13 23:43:00,824 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 227 for LOIs [2024-11-13 23:43:00,935 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:43:58,868 WARN L286 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 453 DAG size of output: 453 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:44:29,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [878690556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:29,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:44:29,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-13 23:44:29,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417595422] [2024-11-13 23:44:29,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:29,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-13 23:44:29,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:29,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-13 23:44:29,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-13 23:44:29,061 INFO L87 Difference]: Start difference. First operand 397 states and 591 transitions. Second operand has 27 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-13 23:44:39,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:39,174 INFO L93 Difference]: Finished difference Result 729 states and 1113 transitions. [2024-11-13 23:44:39,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-13 23:44:39,175 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 71 [2024-11-13 23:44:39,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:39,178 INFO L225 Difference]: With dead ends: 729 [2024-11-13 23:44:39,179 INFO L226 Difference]: Without dead ends: 445 [2024-11-13 23:44:39,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 183 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 88.1s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-13 23:44:39,181 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 17 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 2218 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2877 SdHoareTripleChecker+Invalid, 2226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:39,181 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2877 Invalid, 2226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2218 Invalid, 0 Unknown, 0 Unchecked, 9.8s Time] [2024-11-13 23:44:39,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2024-11-13 23:44:39,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 417. [2024-11-13 23:44:39,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 303 states have (on average 1.4587458745874586) internal successors, (442), 306 states have internal predecessors, (442), 90 states have call successors, (90), 23 states have call predecessors, (90), 23 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2024-11-13 23:44:39,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 621 transitions. [2024-11-13 23:44:39,316 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 621 transitions. Word has length 71 [2024-11-13 23:44:39,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:39,317 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 621 transitions. [2024-11-13 23:44:39,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-13 23:44:39,317 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 621 transitions. [2024-11-13 23:44:39,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-13 23:44:39,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:39,320 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:39,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 23:44:39,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-13 23:44:39,521 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:39,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:39,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1989644004, now seen corresponding path program 1 times [2024-11-13 23:44:39,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:39,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475057638] [2024-11-13 23:44:39,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:39,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:39,787 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-13 23:44:39,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:39,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475057638] [2024-11-13 23:44:39,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475057638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:39,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:39,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 23:44:39,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047458637] [2024-11-13 23:44:39,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:39,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 23:44:39,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:39,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 23:44:39,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:44:39,789 INFO L87 Difference]: Start difference. First operand 417 states and 621 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 23:44:40,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:40,074 INFO L93 Difference]: Finished difference Result 521 states and 746 transitions. [2024-11-13 23:44:40,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 23:44:40,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2024-11-13 23:44:40,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:40,079 INFO L225 Difference]: With dead ends: 521 [2024-11-13 23:44:40,079 INFO L226 Difference]: Without dead ends: 439 [2024-11-13 23:44:40,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 23:44:40,081 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 119 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:40,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 267 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-13 23:44:40,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-13 23:44:40,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2024-11-13 23:44:40,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 315 states have (on average 1.4412698412698413) internal successors, (454), 318 states have internal predecessors, (454), 94 states have call successors, (94), 30 states have call predecessors, (94), 29 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-13 23:44:40,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 641 transitions. [2024-11-13 23:44:40,303 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 641 transitions. Word has length 74 [2024-11-13 23:44:40,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:40,304 INFO L471 AbstractCegarLoop]: Abstraction has 439 states and 641 transitions. [2024-11-13 23:44:40,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-13 23:44:40,304 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 641 transitions. [2024-11-13 23:44:40,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 23:44:40,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:40,308 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:40,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 23:44:40,309 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:40,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:40,309 INFO L85 PathProgramCache]: Analyzing trace with hash -437815562, now seen corresponding path program 1 times [2024-11-13 23:44:40,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:40,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812434248] [2024-11-13 23:44:40,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:40,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:40,643 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-13 23:44:40,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:40,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812434248] [2024-11-13 23:44:40,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812434248] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 23:44:40,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 23:44:40,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 23:44:40,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665501212] [2024-11-13 23:44:40,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 23:44:40,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 23:44:40,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:44:40,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 23:44:40,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 23:44:40,645 INFO L87 Difference]: Start difference. First operand 439 states and 641 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 23:44:41,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:44:41,533 INFO L93 Difference]: Finished difference Result 593 states and 829 transitions. [2024-11-13 23:44:41,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 23:44:41,534 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 107 [2024-11-13 23:44:41,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:44:41,538 INFO L225 Difference]: With dead ends: 593 [2024-11-13 23:44:41,538 INFO L226 Difference]: Without dead ends: 469 [2024-11-13 23:44:41,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 23:44:41,540 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 184 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-13 23:44:41,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 417 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-13 23:44:41,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2024-11-13 23:44:41,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 466. [2024-11-13 23:44:41,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 329 states have (on average 1.419452887537994) internal successors, (467), 333 states have internal predecessors, (467), 100 states have call successors, (100), 37 states have call predecessors, (100), 36 states have return successors, (99), 98 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-13 23:44:41,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 666 transitions. [2024-11-13 23:44:41,786 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 666 transitions. Word has length 107 [2024-11-13 23:44:41,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:44:41,787 INFO L471 AbstractCegarLoop]: Abstraction has 466 states and 666 transitions. [2024-11-13 23:44:41,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2024-11-13 23:44:41,789 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 666 transitions. [2024-11-13 23:44:41,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-13 23:44:41,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:44:41,793 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:44:41,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 23:44:41,794 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:44:41,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:44:41,794 INFO L85 PathProgramCache]: Analyzing trace with hash -6510420, now seen corresponding path program 1 times [2024-11-13 23:44:41,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:44:41,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151067244] [2024-11-13 23:44:41,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:41,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:44:41,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:42,788 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-13 23:44:42,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:44:42,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151067244] [2024-11-13 23:44:42,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151067244] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:44:42,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457445674] [2024-11-13 23:44:42,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:44:42,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:44:42,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:44:42,792 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:44:42,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 23:44:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:44:43,238 INFO L255 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 23:44:43,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:44:43,308 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-13 23:44:43,308 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:44:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-13 23:44:43,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457445674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:44:43,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1155840856] [2024-11-13 23:44:43,510 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2024-11-13 23:44:43,510 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:44:43,511 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:44:43,511 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:44:43,511 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-13 23:45:22,389 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2024-11-13 23:45:22,500 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 439 for LOIs [2024-11-13 23:45:23,934 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2024-11-13 23:45:27,839 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 291 for LOIs [2024-11-13 23:45:45,018 INFO L197 IcfgInterpreter]: Interpreting procedure queue with input of size 227 for LOIs [2024-11-13 23:45:45,084 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 249 for LOIs [2024-11-13 23:45:45,245 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 296 for LOIs [2024-11-13 23:45:46,668 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 252 for LOIs [2024-11-13 23:45:47,398 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 318 for LOIs [2024-11-13 23:45:48,315 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 224 for LOIs [2024-11-13 23:45:48,863 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-13 23:46:14,303 WARN L286 SmtUtils]: Spent 7.06s on a formula simplification. DAG size of input: 439 DAG size of output: 440 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:46:25,060 WARN L286 SmtUtils]: Spent 10.14s on a formula simplification. DAG size of input: 463 DAG size of output: 458 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:47:45,501 WARN L286 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 291 DAG size of output: 276 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:47:53,055 WARN L286 SmtUtils]: Spent 6.53s on a formula simplification. DAG size of input: 295 DAG size of output: 280 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 23:49:05,407 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14430#(and (= ~__ste_Client_Keyring1_User2~0 0) (= ~__GUIDSL_NON_TERMINAL_main~0 0) (<= ~queued_message~0 2147483647) (= ~__ste_email_subject0~0.offset 0) (= ~__SELECTED_FEATURE_Sign~0 0) (= 0 ~__ste_Client_AddressBook0_Address2~0) (= ~__ste_client_outbuffer3~0 0) (<= 1 |#StackHeapBarrier|) (= ~__ste_Client_counter~0 0) (= ~__ste_Client_Keyring1_PublicKey2~0 0) (<= |outgoing_outgoing__wrappee__Keys_~tmp~7#1| 2147483647) (<= |old(~in_encrypted~0)| 2147483647) (= ~__ste_Client_AddressBook2_Alias0~0 0) (= 0 ~__ste_email_subject0~0.base) (= ~__ste_Client_AddressBook2_Alias1~0 0) (<= 0 (+ |outgoing_outgoing__wrappee__Keys_~tmp~7#1| 2147483648)) (= ~__ste_Client_Keyring2_PublicKey2~0 0) (= ~__ste_client_forwardReceiver3~0 0) (= ~__ste_client_name2~0.offset 0) (= ~__ste_client_name1~0.base 0) (<= 0 ~__ste_client_autoResponse1~0) (= ~__SELECTED_FEATURE_Verify~0 0) (= ~__ste_Client_Keyring1_User0~0 0) (= ~__ste_email_body1~0.offset 0) (= ~__SELECTED_FEATURE_Encrypt~0 0) (= ~__ste_Client_AddressBook1_Address2~0 0) (= ~__ste_ClientAddressBook_size1~0 0) (= ~__ste_Client_Keyring0_PublicKey0~0 0) (= ~__ste_Email_counter~0 0) (= ~__ste_ClientKeyring_size1~0 0) (= ~__ste_email_body0~0.offset 0) (= ~__ste_email_isSignatureVerified0~0 0) (= ~__ste_Client_Keyring0_User2~0 0) (= ~__ste_ClientAddressBook_size0~0 0) (<= |old(~queued_client~0)| 2147483647) (= ~__ste_Client_Keyring0_User1~0 0) (= ~__ste_Client_AddressBook1_Alias1~0 0) (= 3 ~__ste_client_idCounter2~0) (= ~__ste_client_name1~0.offset 0) (= ~head~0.offset 0) (= ~__ste_client_name0~0.offset 0) (<= ~__ste_client_autoResponse1~0 1) (= ~__ste_Client_Keyring0_PublicKey2~0 0) (<= 0 (+ ~queued_client~0 2147483648)) (= ~__ste_Client_Keyring1_PublicKey0~0 0) (<= |outgoing_#in~client#1| 2147483647) (<= ~queue_empty~0 1) (= ~__ste_email_signKey0~0 0) (= ~__SELECTED_FEATURE_Decrypt~0 0) (<= 0 (+ ~queued_message~0 2147483648)) (<= 0 (+ |outgoing_mail_~msg#1| 2147483648)) (= ~__SELECTED_FEATURE_Keys~0 0) (= ~__SELECTED_FEATURE_AddressBook~0 0) (= ~__ste_client_forwardReceiver2~0 0) (= ~__ste_Client_Keyring0_PublicKey1~0 0) (<= 0 |old(~queue_empty~0)|) (= ~__SELECTED_FEATURE_Forward~0 0) (= ~__ste_Client_Keyring0_User0~0 0) (= ~__ste_email_isSigned0~0 0) (= ~__ste_Client_Keyring2_PublicKey1~0 0) (= ~__ste_email_isSigned1~0 0) (= ~__ste_email_body0~0.base 0) (= ~__ste_Client_AddressBook0_Alias0~0 0) (= ~__ste_email_id0~0 0) (<= |outgoing___utac_acc__EncryptForward_spec__2_~msg#1| 2147483647) (<= 0 ~queue_empty~0) (<= ~in_encrypted~0 2147483647) (= ~__ste_Client_Keyring2_User1~0 0) (= ~__ste_Client_AddressBook2_Address2~0 0) (= 3 ~chuck~0) (= ~__ste_Client_AddressBook2_Address1~0 0) (<= 0 (+ |old(~in_encrypted~0)| 2147483648)) (= ~bob~0 1) (= ~__ste_client_forwardReceiver1~0 0) (= ~__ste_Client_AddressBook1_Alias2~0 0) (= ~__ste_client_outbuffer0~0 0) (<= |outgoing_#in~msg#1| 2147483647) (<= 0 (+ |outgoing_#in~client#1| 2147483648)) (<= 0 (+ |old(~queued_client~0)| 2147483648)) (= ~__SELECTED_FEATURE_Base~0 0) (<= 0 (+ |old(~queued_message~0)| 2147483648)) (= ~__ste_client_forwardReceiver0~0 0) (= ~__ste_Client_Keyring2_User0~0 0) (= ~rjh~0 2) (= 0 ~__ste_Client_AddressBook0_Address1~0) (= ~__ste_Client_AddressBook2_Address0~0 0) (= ~__ste_email_isSignatureVerified1~0 0) (= ~__ste_Client_Keyring1_PublicKey1~0 0) (= ~__ste_Client_Keyring2_PublicKey0~0 0) (= ~__ste_Client_AddressBook1_Address0~0 0) (= ~__ste_client_name2~0.base 0) (= ~__ste_email_subject1~0.base 0) (<= |outgoing_mail_~msg#1| 2147483647) (<= |old(~queue_empty~0)| 1) (= ~__ste_Client_AddressBook1_Alias0~0 0) (<= 0 (+ |outgoing_#in~msg#1| 2147483648)) (= ~__ste_Client_Keyring2_User2~0 0) (= ~head~0.base 0) (= ~__ste_Client_Keyring1_User1~0 0) (<= 0 (+ |outgoing___utac_acc__EncryptForward_spec__2_~msg#1| 2147483648)) (= ~__ste_Client_AddressBook2_Alias2~0 0) (<= |old(~queued_message~0)| 2147483647) (= ~__ste_email_subject1~0.offset 0) (= ~__ste_Client_AddressBook0_Alias2~0 0) (= ~__ste_ClientKeyring_size0~0 0) (= ~__ste_Client_AddressBook1_Address1~0 0) (= 0 ~__ste_Client_AddressBook0_Address0~0) (= ~__ste_client_outbuffer1~0 0) (= ~__ste_Client_AddressBook0_Alias1~0 0) (= ~__GUIDSL_ROOT_PRODUCTION~0 0) (<= ~queued_client~0 2147483647) (= ~__ste_client_name0~0.base 0) (= ~__ste_email_id1~0 0) (= ~__ste_client_outbuffer2~0 0) (= ~__ste_ClientAddressBook_size2~0 0) (= ~__SELECTED_FEATURE_AutoResponder~0 0) (= ~__ste_client_autoResponse0~0 0) (= ~__ste_email_body1~0.base 0) (= ~__ste_ClientKeyring_size2~0 0) (= ~__ste_client_autoResponse2~0 0) (<= 0 (+ ~in_encrypted~0 2147483648)) (= ~__ste_email_signKey1~0 0))' at error location [2024-11-13 23:49:05,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-13 23:49:05,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 23:49:05,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5] total 19 [2024-11-13 23:49:05,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389489536] [2024-11-13 23:49:05,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 23:49:05,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 23:49:05,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-13 23:49:05,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 23:49:05,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=350, Invalid=7840, Unknown=0, NotChecked=0, Total=8190 [2024-11-13 23:49:05,412 INFO L87 Difference]: Start difference. First operand 466 states and 666 transitions. Second operand has 19 states, 16 states have (on average 9.125) internal successors, (146), 17 states have internal predecessors, (146), 13 states have call successors, (56), 4 states have call predecessors, (56), 5 states have return successors, (54), 13 states have call predecessors, (54), 13 states have call successors, (54) [2024-11-13 23:49:12,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 23:49:12,984 INFO L93 Difference]: Finished difference Result 1336 states and 1911 transitions. [2024-11-13 23:49:12,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2024-11-13 23:49:12,985 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 9.125) internal successors, (146), 17 states have internal predecessors, (146), 13 states have call successors, (56), 4 states have call predecessors, (56), 5 states have return successors, (54), 13 states have call predecessors, (54), 13 states have call successors, (54) Word has length 118 [2024-11-13 23:49:12,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 23:49:12,991 INFO L225 Difference]: With dead ends: 1336 [2024-11-13 23:49:12,991 INFO L226 Difference]: Without dead ends: 1012 [2024-11-13 23:49:12,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 284 SyntacticMatches, 4 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4392 ImplicationChecksByTransitivity, 201.4s TimeCoverageRelationStatistics Valid=665, Invalid=13141, Unknown=0, NotChecked=0, Total=13806 [2024-11-13 23:49:12,997 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 729 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 2687 mSolverCounterSat, 604 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 3291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 604 IncrementalHoareTripleChecker+Valid, 2687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 23:49:12,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 2326 Invalid, 3291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [604 Valid, 2687 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 23:49:12,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1012 states. [2024-11-13 23:49:13,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1012 to 973. [2024-11-13 23:49:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 973 states, 727 states have (on average 1.452544704264099) internal successors, (1056), 730 states have internal predecessors, (1056), 207 states have call successors, (207), 39 states have call predecessors, (207), 38 states have return successors, (206), 205 states have call predecessors, (206), 206 states have call successors, (206) [2024-11-13 23:49:13,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 973 states to 973 states and 1469 transitions. [2024-11-13 23:49:13,500 INFO L78 Accepts]: Start accepts. Automaton has 973 states and 1469 transitions. Word has length 118 [2024-11-13 23:49:13,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 23:49:13,501 INFO L471 AbstractCegarLoop]: Abstraction has 973 states and 1469 transitions. [2024-11-13 23:49:13,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 9.125) internal successors, (146), 17 states have internal predecessors, (146), 13 states have call successors, (56), 4 states have call predecessors, (56), 5 states have return successors, (54), 13 states have call predecessors, (54), 13 states have call successors, (54) [2024-11-13 23:49:13,501 INFO L276 IsEmpty]: Start isEmpty. Operand 973 states and 1469 transitions. [2024-11-13 23:49:13,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 23:49:13,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 23:49:13,507 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 23:49:13,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 23:49:13,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-13 23:49:13,708 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 23:49:13,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:49:13,708 INFO L85 PathProgramCache]: Analyzing trace with hash 2037272639, now seen corresponding path program 1 times [2024-11-13 23:49:13,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-13 23:49:13,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824832752] [2024-11-13 23:49:13,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:49:13,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:49:13,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:49:15,278 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-13 23:49:15,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-13 23:49:15,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824832752] [2024-11-13 23:49:15,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824832752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 23:49:15,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222083643] [2024-11-13 23:49:15,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 23:49:15,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 23:49:15,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-13 23:49:15,281 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 23:49:15,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4bb6187-71d3-4a3c-bb03-a2376c80c232/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 23:49:15,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:49:15,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 1120 conjuncts, 60 conjuncts are in the unsatisfiable core [2024-11-13 23:49:15,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 23:49:16,582 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 23:49:16,582 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 23:49:18,505 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-13 23:49:18,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222083643] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 23:49:18,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1215060238] [2024-11-13 23:49:18,509 INFO L159 IcfgInterpreter]: Started Sifa with 102 locations of interest [2024-11-13 23:49:18,510 INFO L166 IcfgInterpreter]: Building call graph [2024-11-13 23:49:18,510 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-13 23:49:18,510 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-13 23:49:18,511 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs