./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product18.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_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/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_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/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_c5d1fc38-b511-402f-8bc1-98276f5d2e84/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 f70ac21a1decd51d5f9571a5be4450629a9ca28f5aa1158e9564f33ba44bf6ef --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:29:01,491 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:29:01,588 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 04:29:01,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:29:01,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:29:01,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:29:01,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:29:01,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:29:01,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:29:01,636 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:29:01,636 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:29:01,636 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:29:01,637 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:29:01,637 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:29:01,637 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:29:01,637 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:29:01,638 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:29:01,638 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:29:01,638 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:29:01,638 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:29:01,638 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:29:01,638 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:29:01,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:29:01,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:29:01,639 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:29:01,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:29:01,639 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:29:01,639 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:29:01,639 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:29:01,639 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:29:01,639 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:29:01,639 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:29:01,640 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:29:01,640 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:29:01,640 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:29:01,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:29:01,640 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 04:29:01,640 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:29:01,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:29:01,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:29:01,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:29:01,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:29:01,641 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:29:01,641 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:29:01,641 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:29:01,641 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:29:01,641 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:29:01,642 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_c5d1fc38-b511-402f-8bc1-98276f5d2e84/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 -> f70ac21a1decd51d5f9571a5be4450629a9ca28f5aa1158e9564f33ba44bf6ef [2024-11-14 04:29:01,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:29:01,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:29:01,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:29:01,988 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:29:01,989 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:29:01,990 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec7_product18.cil.c Unable to find full path for "g++" [2024-11-14 04:29:03,867 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:29:04,259 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:29:04,260 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/sv-benchmarks/c/product-lines/email_spec7_product18.cil.c [2024-11-14 04:29:04,280 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/data/d4e2096d1/f43175a6c1ff4b7a9dd212757c9a63be/FLAGca42d8c21 [2024-11-14 04:29:04,442 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/data/d4e2096d1/f43175a6c1ff4b7a9dd212757c9a63be [2024-11-14 04:29:04,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:29:04,446 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:29:04,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:29:04,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:29:04,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:29:04,454 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:29:04" (1/1) ... [2024-11-14 04:29:04,455 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@585821ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:04, skipping insertion in model container [2024-11-14 04:29:04,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:29:04" (1/1) ... [2024-11-14 04:29:04,541 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:29:05,242 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_c5d1fc38-b511-402f-8bc1-98276f5d2e84/sv-benchmarks/c/product-lines/email_spec7_product18.cil.c[45803,45816] [2024-11-14 04:29:05,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:29:05,416 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:29:05,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2024-11-14 04:29:05,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [66] [2024-11-14 04:29:05,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [432] [2024-11-14 04:29:05,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [481] [2024-11-14 04:29:05,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1561] [2024-11-14 04:29:05,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1973] [2024-11-14 04:29:05,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1982] [2024-11-14 04:29:05,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2274] [2024-11-14 04:29:05,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2373] [2024-11-14 04:29:05,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2658] [2024-11-14 04:29:05,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [2874] [2024-11-14 04:29:05,515 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_c5d1fc38-b511-402f-8bc1-98276f5d2e84/sv-benchmarks/c/product-lines/email_spec7_product18.cil.c[45803,45816] [2024-11-14 04:29:05,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:29:05,618 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:29:05,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05 WrapperNode [2024-11-14 04:29:05,618 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:29:05,621 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:29:05,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:29:05,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:29:05,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05" (1/1) ... [2024-11-14 04:29:05,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05" (1/1) ... [2024-11-14 04:29:05,709 INFO L138 Inliner]: procedures = 127, calls = 184, calls flagged for inlining = 59, calls inlined = 50, statements flattened = 905 [2024-11-14 04:29:05,710 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:29:05,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:29:05,710 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:29:05,711 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:29:05,719 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05" (1/1) ... [2024-11-14 04:29:05,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05" (1/1) ... [2024-11-14 04:29:05,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05" (1/1) ... [2024-11-14 04:29:05,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05" (1/1) ... [2024-11-14 04:29:05,742 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05" (1/1) ... [2024-11-14 04:29:05,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05" (1/1) ... [2024-11-14 04:29:05,755 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05" (1/1) ... [2024-11-14 04:29:05,758 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05" (1/1) ... [2024-11-14 04:29:05,764 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:29:05,765 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:29:05,765 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:29:05,766 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:29:05,767 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05" (1/1) ... [2024-11-14 04:29:05,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:29:05,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:05,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:29:05,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:29:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 04:29:05,846 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 04:29:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 04:29:05,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 04:29:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-14 04:29:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-14 04:29:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 04:29:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 04:29:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-14 04:29:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-14 04:29:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 04:29:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 04:29:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-14 04:29:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-14 04:29:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 04:29:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 04:29:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:29:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-14 04:29:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-14 04:29:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 04:29:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 04:29:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 04:29:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 04:29:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 04:29:05,848 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 04:29:05,848 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 04:29:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 04:29:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 04:29:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 04:29:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 04:29:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 04:29:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:29:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 04:29:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 04:29:05,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:29:05,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:29:06,074 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:29:06,077 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:29:07,112 INFO L? ?]: Removed 393 outVars from TransFormulas that were not future-live. [2024-11-14 04:29:07,112 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:29:07,919 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:29:07,920 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 04:29:07,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:29:07 BoogieIcfgContainer [2024-11-14 04:29:07,921 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:29:07,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:29:07,926 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:29:07,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:29:07,931 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:29:04" (1/3) ... [2024-11-14 04:29:07,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b6733e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:29:07, skipping insertion in model container [2024-11-14 04:29:07,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:29:05" (2/3) ... [2024-11-14 04:29:07,933 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b6733e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:29:07, skipping insertion in model container [2024-11-14 04:29:07,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:29:07" (3/3) ... [2024-11-14 04:29:07,934 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product18.cil.c [2024-11-14 04:29:07,957 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:29:07,959 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec7_product18.cil.c that has 17 procedures, 142 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 04:29:08,061 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:29:08,081 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;@619aaa51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:29:08,081 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 04:29:08,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 86 states have (on average 1.372093023255814) internal successors, (118), 88 states have internal predecessors, (118), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-14 04:29:08,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-14 04:29:08,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:08,103 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] [2024-11-14 04:29:08,104 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:29:08,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:08,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1687755002, now seen corresponding path program 1 times [2024-11-14 04:29:08,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:08,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543970971] [2024-11-14 04:29:08,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:08,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:08,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:08,660 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:29:08,660 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:29:08,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543970971] [2024-11-14 04:29:08,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543970971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:08,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:29:08,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:29:08,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225403756] [2024-11-14 04:29:08,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:08,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 04:29:08,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:29:08,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 04:29:08,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:29:08,704 INFO L87 Difference]: Start difference. First operand has 142 states, 86 states have (on average 1.372093023255814) internal successors, (118), 88 states have internal predecessors, (118), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2024-11-14 04:29:08,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:08,825 INFO L93 Difference]: Finished difference Result 201 states and 266 transitions. [2024-11-14 04:29:08,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 04:29:08,827 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 53 [2024-11-14 04:29:08,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:08,836 INFO L225 Difference]: With dead ends: 201 [2024-11-14 04:29:08,836 INFO L226 Difference]: Without dead ends: 139 [2024-11-14 04:29:08,840 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 04:29:08,843 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:08,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:29:08,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-14 04:29:08,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-14 04:29:08,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.3333333333333333) internal successors, (112), 85 states have internal predecessors, (112), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:29:08,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 187 transitions. [2024-11-14 04:29:08,891 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 187 transitions. Word has length 53 [2024-11-14 04:29:08,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:08,892 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 187 transitions. [2024-11-14 04:29:08,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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) [2024-11-14 04:29:08,893 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 187 transitions. [2024-11-14 04:29:08,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-14 04:29:08,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:08,896 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] [2024-11-14 04:29:08,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:29:08,897 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:29:08,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:08,897 INFO L85 PathProgramCache]: Analyzing trace with hash 167700677, now seen corresponding path program 1 times [2024-11-14 04:29:08,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:08,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977918889] [2024-11-14 04:29:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:08,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:09,304 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:29:09,304 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:29:09,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977918889] [2024-11-14 04:29:09,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977918889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:09,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:29:09,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:29:09,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984350489] [2024-11-14 04:29:09,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:09,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:29:09,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:29:09,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:29:09,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:29:09,311 INFO L87 Difference]: Start difference. First operand 139 states and 187 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-11-14 04:29:09,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:09,479 INFO L93 Difference]: Finished difference Result 197 states and 254 transitions. [2024-11-14 04:29:09,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:29:09,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 54 [2024-11-14 04:29:09,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:09,482 INFO L225 Difference]: With dead ends: 197 [2024-11-14 04:29:09,482 INFO L226 Difference]: Without dead ends: 141 [2024-11-14 04:29:09,487 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:29:09,488 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:09,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:29:09,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-14 04:29:09,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2024-11-14 04:29:09,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 87 states have internal predecessors, (114), 38 states have call successors, (38), 16 states have call predecessors, (38), 16 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-14 04:29:09,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 189 transitions. [2024-11-14 04:29:09,531 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 189 transitions. Word has length 54 [2024-11-14 04:29:09,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:09,532 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 189 transitions. [2024-11-14 04:29:09,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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) [2024-11-14 04:29:09,532 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 189 transitions. [2024-11-14 04:29:09,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-14 04:29:09,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:09,539 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] [2024-11-14 04:29:09,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:29:09,540 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:29:09,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:09,544 INFO L85 PathProgramCache]: Analyzing trace with hash 863952643, now seen corresponding path program 1 times [2024-11-14 04:29:09,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:09,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56722357] [2024-11-14 04:29:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:09,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:09,785 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:29:09,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:29:09,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56722357] [2024-11-14 04:29:09,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56722357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:29:09,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:29:09,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:29:09,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045531052] [2024-11-14 04:29:09,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:29:09,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:29:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:29:09,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:29:09,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:29:09,791 INFO L87 Difference]: Start difference. First operand 141 states and 189 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (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) [2024-11-14 04:29:09,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:29:09,971 INFO L93 Difference]: Finished difference Result 312 states and 437 transitions. [2024-11-14 04:29:09,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:29:09,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (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 59 [2024-11-14 04:29:09,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:29:09,975 INFO L225 Difference]: With dead ends: 312 [2024-11-14 04:29:09,977 INFO L226 Difference]: Without dead ends: 189 [2024-11-14 04:29:09,978 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:29:09,979 INFO L432 NwaCegarLoop]: 170 mSDtfsCounter, 57 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:29:09,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 324 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:29:09,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-14 04:29:10,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 184. [2024-11-14 04:29:10,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 118 states have (on average 1.4152542372881356) internal successors, (167), 119 states have internal predecessors, (167), 49 states have call successors, (49), 16 states have call predecessors, (49), 16 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 04:29:10,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 264 transitions. [2024-11-14 04:29:10,022 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 264 transitions. Word has length 59 [2024-11-14 04:29:10,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:29:10,024 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 264 transitions. [2024-11-14 04:29:10,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (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) [2024-11-14 04:29:10,025 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 264 transitions. [2024-11-14 04:29:10,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-14 04:29:10,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:29:10,027 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] [2024-11-14 04:29:10,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:29:10,031 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:29:10,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:29:10,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1874510697, now seen corresponding path program 1 times [2024-11-14 04:29:10,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:29:10,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778389167] [2024-11-14 04:29:10,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:10,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:29:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:10,350 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:29:10,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:29:10,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778389167] [2024-11-14 04:29:10,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778389167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:29:10,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752230540] [2024-11-14 04:29:10,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:29:10,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:29:10,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:29:10,357 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:29:10,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 04:29:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:29:10,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:29:10,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:29:10,932 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:29:10,935 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:29:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:29:11,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752230540] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:29:11,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1584074335] [2024-11-14 04:29:11,101 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2024-11-14 04:29:11,101 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:29:11,105 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:29:11,110 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:29:11,111 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:29:40,424 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 04:29:40,548 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-14 04:29:40,704 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:30:51,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1584074335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:30:51,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:30:51,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 04:30:51,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282496562] [2024-11-14 04:30:51,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:30:51,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 04:30:51,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:30:51,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 04:30:51,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 04:30:51,515 INFO L87 Difference]: Start difference. First operand 184 states and 264 transitions. Second operand has 23 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 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) [2024-11-14 04:31:02,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:31:02,395 INFO L93 Difference]: Finished difference Result 382 states and 564 transitions. [2024-11-14 04:31:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 04:31:02,396 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 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 60 [2024-11-14 04:31:02,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:31:02,400 INFO L225 Difference]: With dead ends: 382 [2024-11-14 04:31:02,400 INFO L226 Difference]: Without dead ends: 216 [2024-11-14 04:31:02,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 74.5s TimeCoverageRelationStatistics Valid=84, Invalid=728, Unknown=0, NotChecked=0, Total=812 [2024-11-14 04:31:02,406 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 25 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 1408 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 1418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:31:02,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1689 Invalid, 1418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 1408 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2024-11-14 04:31:02,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-14 04:31:02,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 207. [2024-11-14 04:31:02,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 140 states have (on average 1.4285714285714286) internal successors, (200), 141 states have internal predecessors, (200), 49 states have call successors, (49), 17 states have call predecessors, (49), 17 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-14 04:31:02,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 297 transitions. [2024-11-14 04:31:02,499 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 297 transitions. Word has length 60 [2024-11-14 04:31:02,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:31:02,500 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 297 transitions. [2024-11-14 04:31:02,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 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) [2024-11-14 04:31:02,500 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 297 transitions. [2024-11-14 04:31:02,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-14 04:31:02,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:02,507 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] [2024-11-14 04:31:02,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-14 04:31:02,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:31:02,708 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:31:02,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1708924076, now seen corresponding path program 1 times [2024-11-14 04:31:02,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:31:02,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937574952] [2024-11-14 04:31:02,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:02,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:31:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:31:02,857 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:31:02,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:31:02,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937574952] [2024-11-14 04:31:02,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937574952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:31:02,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:31:02,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 04:31:02,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256741991] [2024-11-14 04:31:02,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:31:02,859 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:31:02,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:31:02,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:31:02,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:31:02,860 INFO L87 Difference]: Start difference. First operand 207 states and 297 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, (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) [2024-11-14 04:31:03,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:31:03,074 INFO L93 Difference]: Finished difference Result 507 states and 758 transitions. [2024-11-14 04:31:03,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:31:03,075 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, (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 65 [2024-11-14 04:31:03,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:31:03,079 INFO L225 Difference]: With dead ends: 507 [2024-11-14 04:31:03,079 INFO L226 Difference]: Without dead ends: 324 [2024-11-14 04:31:03,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:31:03,081 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 55 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:31:03,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 325 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:31:03,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-11-14 04:31:03,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 319. [2024-11-14 04:31:03,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 227 states have (on average 1.4801762114537445) internal successors, (336), 228 states have internal predecessors, (336), 74 states have call successors, (74), 17 states have call predecessors, (74), 17 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-14 04:31:03,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 483 transitions. [2024-11-14 04:31:03,198 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 483 transitions. Word has length 65 [2024-11-14 04:31:03,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:31:03,199 INFO L471 AbstractCegarLoop]: Abstraction has 319 states and 483 transitions. [2024-11-14 04:31:03,199 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, (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) [2024-11-14 04:31:03,199 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 483 transitions. [2024-11-14 04:31:03,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-14 04:31:03,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:31:03,202 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] [2024-11-14 04:31:03,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:31:03,202 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:31:03,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:31:03,203 INFO L85 PathProgramCache]: Analyzing trace with hash -163201923, now seen corresponding path program 1 times [2024-11-14 04:31:03,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:31:03,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364268480] [2024-11-14 04:31:03,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:03,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:31:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:31:03,417 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:31:03,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:31:03,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364268480] [2024-11-14 04:31:03,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364268480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:31:03,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456166890] [2024-11-14 04:31:03,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:31:03,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:31:03,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:31:03,422 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:31:03,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 04:31:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:31:03,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:31:03,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:31:03,874 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:31:03,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:31:03,990 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:31:03,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456166890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:31:03,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [778935443] [2024-11-14 04:31:03,993 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-14 04:31:03,994 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:31:03,994 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:31:03,994 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:31:03,995 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:31:40,909 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 04:31:41,036 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-14 04:31:42,277 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:32:06,802 WARN L286 SmtUtils]: Spent 7.51s on a formula simplification. DAG size of input: 431 DAG size of output: 431 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:32:18,630 WARN L286 SmtUtils]: Spent 11.41s on a formula simplification. DAG size of input: 455 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 04:33:18,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [778935443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:33:18,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:33:18,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-14 04:33:18,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656689515] [2024-11-14 04:33:18,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:33:18,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 04:33:18,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:33:18,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 04:33:18,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 04:33:18,261 INFO L87 Difference]: Start difference. First operand 319 states and 483 transitions. Second operand has 26 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 16 states have internal predecessors, (33), 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) [2024-11-14 04:33:26,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:33:26,667 INFO L93 Difference]: Finished difference Result 646 states and 1005 transitions. [2024-11-14 04:33:26,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 04:33:26,667 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 16 states have internal predecessors, (33), 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 66 [2024-11-14 04:33:26,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:33:26,670 INFO L225 Difference]: With dead ends: 646 [2024-11-14 04:33:26,671 INFO L226 Difference]: Without dead ends: 390 [2024-11-14 04:33:26,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 96.0s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 04:33:26,673 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 61 mSDsluCounter, 2030 mSDsCounter, 0 mSdLazyCounter, 1900 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-14 04:33:26,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2170 Invalid, 1908 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1900 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-11-14 04:33:26,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-14 04:33:26,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 333. [2024-11-14 04:33:26,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 239 states have (on average 1.4769874476987448) internal successors, (353), 240 states have internal predecessors, (353), 75 states have call successors, (75), 18 states have call predecessors, (75), 18 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-14 04:33:26,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 502 transitions. [2024-11-14 04:33:26,790 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 502 transitions. Word has length 66 [2024-11-14 04:33:26,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:33:26,790 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 502 transitions. [2024-11-14 04:33:26,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 16 states have internal predecessors, (33), 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) [2024-11-14 04:33:26,790 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 502 transitions. [2024-11-14 04:33:26,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 04:33:26,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:33:26,792 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:33:26,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 04:33:26,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:33:26,993 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:33:26,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:33:26,993 INFO L85 PathProgramCache]: Analyzing trace with hash 388824647, now seen corresponding path program 1 times [2024-11-14 04:33:26,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:33:26,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669559644] [2024-11-14 04:33:26,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:26,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:33:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:27,162 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:33:27,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:33:27,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669559644] [2024-11-14 04:33:27,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669559644] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:33:27,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252004182] [2024-11-14 04:33:27,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:33:27,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:33:27,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:33:27,165 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:33:27,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 04:33:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:33:27,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:33:27,556 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:33:27,579 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:33:27,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:33:27,656 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:33:27,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252004182] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:33:27,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1191353697] [2024-11-14 04:33:27,660 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2024-11-14 04:33:27,660 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:33:27,661 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:33:27,661 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:33:27,661 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:34:38,496 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 04:34:38,609 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 477 for LOIs [2024-11-14 04:34:39,633 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 422 for LOIs [2024-11-14 04:34:40,018 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-14 04:34:40,220 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 486 for LOIs [2024-11-14 04:34:41,647 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:36:30,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1191353697] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:36:30,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:36:30,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-14 04:36:30,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772814415] [2024-11-14 04:36:30,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:36:30,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 04:36:30,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:36:30,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 04:36:30,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 04:36:30,434 INFO L87 Difference]: Start difference. First operand 333 states and 502 transitions. Second operand has 33 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 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) [2024-11-14 04:36:49,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:36:49,213 INFO L93 Difference]: Finished difference Result 671 states and 1040 transitions. [2024-11-14 04:36:49,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 04:36:49,214 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 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 69 [2024-11-14 04:36:49,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:36:49,217 INFO L225 Difference]: With dead ends: 671 [2024-11-14 04:36:49,218 INFO L226 Difference]: Without dead ends: 415 [2024-11-14 04:36:49,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 112.2s TimeCoverageRelationStatistics Valid=121, Invalid=1361, Unknown=0, NotChecked=0, Total=1482 [2024-11-14 04:36:49,219 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 100 mSDsluCounter, 2610 mSDsCounter, 0 mSdLazyCounter, 2844 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 2751 SdHoareTripleChecker+Invalid, 2854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:36:49,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 2751 Invalid, 2854 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2844 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2024-11-14 04:36:49,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2024-11-14 04:36:49,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 369. [2024-11-14 04:36:49,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 269 states have (on average 1.4684014869888475) internal successors, (395), 270 states have internal predecessors, (395), 78 states have call successors, (78), 21 states have call predecessors, (78), 21 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-14 04:36:49,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 550 transitions. [2024-11-14 04:36:49,372 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 550 transitions. Word has length 69 [2024-11-14 04:36:49,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:36:49,373 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 550 transitions. [2024-11-14 04:36:49,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 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) [2024-11-14 04:36:49,373 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 550 transitions. [2024-11-14 04:36:49,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 04:36:49,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:36:49,376 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] [2024-11-14 04:36:49,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 04:36:49,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:36:49,576 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:36:49,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:36:49,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1187638514, now seen corresponding path program 1 times [2024-11-14 04:36:49,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:36:49,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772075903] [2024-11-14 04:36:49,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:36:49,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:36:49,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:36:49,854 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:36:49,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:36:49,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772075903] [2024-11-14 04:36:49,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772075903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:36:49,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729804250] [2024-11-14 04:36:49,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:36:49,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:36:49,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:36:49,858 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:36:49,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 04:36:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:36:50,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 832 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 04:36:50,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:36:50,307 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:36:50,307 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:36:50,402 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:36:50,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729804250] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:36:50,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [184166497] [2024-11-14 04:36:50,408 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2024-11-14 04:36:50,408 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:36:50,408 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:36:50,409 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:36:50,409 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:37:24,570 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 04:37:24,689 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-14 04:37:24,849 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:38:54,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [184166497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:38:54,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:38:54,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 04:38:54,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876972244] [2024-11-14 04:38:54,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:38:54,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 04:38:54,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:38:54,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 04:38:54,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 04:38:54,947 INFO L87 Difference]: Start difference. First operand 369 states and 550 transitions. Second operand has 27 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 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) [2024-11-14 04:39:06,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:39:06,520 INFO L93 Difference]: Finished difference Result 673 states and 1031 transitions. [2024-11-14 04:39:06,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 04:39:06,521 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 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 68 [2024-11-14 04:39:06,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:39:06,525 INFO L225 Difference]: With dead ends: 673 [2024-11-14 04:39:06,525 INFO L226 Difference]: Without dead ends: 417 [2024-11-14 04:39:06,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 93.8s TimeCoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 04:39:06,527 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 17 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:39:06,528 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1736 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1660 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-14 04:39:06,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-14 04:39:06,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 389. [2024-11-14 04:39:06,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 289 states have (on average 1.4705882352941178) internal successors, (425), 290 states have internal predecessors, (425), 78 states have call successors, (78), 21 states have call predecessors, (78), 21 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-14 04:39:06,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 580 transitions. [2024-11-14 04:39:06,778 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 580 transitions. Word has length 68 [2024-11-14 04:39:06,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:39:06,778 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 580 transitions. [2024-11-14 04:39:06,778 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 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) [2024-11-14 04:39:06,778 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 580 transitions. [2024-11-14 04:39:06,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 04:39:06,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:39:06,785 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] [2024-11-14 04:39:06,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 04:39:06,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 04:39:06,986 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:39:06,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:39:06,986 INFO L85 PathProgramCache]: Analyzing trace with hash 371833392, now seen corresponding path program 1 times [2024-11-14 04:39:06,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:39:06,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003006534] [2024-11-14 04:39:06,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:06,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:39:07,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 04:39:07,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:39:07,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003006534] [2024-11-14 04:39:07,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003006534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:39:07,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460871481] [2024-11-14 04:39:07,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:39:07,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:39:07,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:39:07,199 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:39:07,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 04:39:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:39:07,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 845 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:39:07,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:39:07,683 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:39:07,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:39:07,802 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 04:39:07,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460871481] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:39:07,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1158476653] [2024-11-14 04:39:07,806 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2024-11-14 04:39:07,806 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:39:07,806 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:39:07,806 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:39:07,806 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:39:37,313 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 04:39:37,420 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 248 for LOIs [2024-11-14 04:39:37,584 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2024-11-14 04:39:40,008 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 224 for LOIs [2024-11-14 04:39:40,098 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 246 for LOIs [2024-11-14 04:39:44,954 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 251 for LOIs [2024-11-14 04:39:45,057 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 251 for LOIs [2024-11-14 04:39:45,185 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 235 for LOIs [2024-11-14 04:39:45,281 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 04:41:24,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1158476653] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:41:24,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 04:41:24,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [6, 5, 5] total 57 [2024-11-14 04:41:24,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617815246] [2024-11-14 04:41:24,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:41:24,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-11-14 04:41:24,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:41:24,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-11-14 04:41:24,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=3031, Unknown=0, NotChecked=0, Total=3192 [2024-11-14 04:41:24,391 INFO L87 Difference]: Start difference. First operand 389 states and 580 transitions. Second operand has 49 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 28 states have internal predecessors, (34), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 04:41:43,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:41:43,199 INFO L93 Difference]: Finished difference Result 791 states and 1204 transitions. [2024-11-14 04:41:43,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-14 04:41:43,200 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 28 states have internal predecessors, (34), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 71 [2024-11-14 04:41:43,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:41:43,203 INFO L225 Difference]: With dead ends: 791 [2024-11-14 04:41:43,203 INFO L226 Difference]: Without dead ends: 495 [2024-11-14 04:41:43,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 161 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 570 ImplicationChecksByTransitivity, 101.9s TimeCoverageRelationStatistics Valid=173, Invalid=3249, Unknown=0, NotChecked=0, Total=3422 [2024-11-14 04:41:43,205 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 96 mSDsluCounter, 3453 mSDsCounter, 0 mSdLazyCounter, 5117 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 3616 SdHoareTripleChecker+Invalid, 5137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 5117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2024-11-14 04:41:43,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 3616 Invalid, 5137 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 5117 Invalid, 0 Unknown, 0 Unchecked, 15.6s Time] [2024-11-14 04:41:43,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-14 04:41:43,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 423. [2024-11-14 04:41:43,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 309 states have (on average 1.4433656957928802) internal successors, (446), 310 states have internal predecessors, (446), 86 states have call successors, (86), 29 states have call predecessors, (86), 27 states have return successors, (85), 83 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-14 04:41:43,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 617 transitions. [2024-11-14 04:41:43,396 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 617 transitions. Word has length 71 [2024-11-14 04:41:43,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:41:43,397 INFO L471 AbstractCegarLoop]: Abstraction has 423 states and 617 transitions. [2024-11-14 04:41:43,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 28 states have internal predecessors, (34), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-14 04:41:43,397 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 617 transitions. [2024-11-14 04:41:43,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 04:41:43,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:41:43,399 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:41:43,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 04:41:43,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:43,600 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 04:41:43,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:41:43,600 INFO L85 PathProgramCache]: Analyzing trace with hash -424940863, now seen corresponding path program 1 times [2024-11-14 04:41:43,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:41:43,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685642478] [2024-11-14 04:41:43,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:43,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:41:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:43,810 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-14 04:41:43,811 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:41:43,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685642478] [2024-11-14 04:41:43,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685642478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 04:41:43,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928488594] [2024-11-14 04:41:43,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:41:43,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 04:41:43,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:41:43,816 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 04:41:43,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c5d1fc38-b511-402f-8bc1-98276f5d2e84/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 04:41:44,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:41:44,195 INFO L255 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 04:41:44,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 04:41:44,241 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:41:44,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 04:41:44,325 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 04:41:44,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928488594] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 04:41:44,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [250717011] [2024-11-14 04:41:44,328 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-14 04:41:44,328 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 04:41:44,329 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 04:41:44,329 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 04:41:44,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 04:42:47,311 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 04:42:47,415 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 289 for LOIs [2024-11-14 04:42:47,643 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 218 for LOIs [2024-11-14 04:42:47,751 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-14 04:42:47,901 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 290 for LOIs [2024-11-14 04:42:48,189 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 227 for LOIs [2024-11-14 04:42:50,631 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 203 for LOIs [2024-11-14 04:42:50,779 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 225 for LOIs [2024-11-14 04:42:54,934 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 230 for LOIs [2024-11-14 04:42:55,022 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 230 for LOIs [2024-11-14 04:42:55,128 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 214 for LOIs [2024-11-14 04:42:55,201 INFO L180 IcfgInterpreter]: Interpretation finished