./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product15.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_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/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_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/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_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/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 68503ade3bb1f8128c7da84cd7c3e560bf5cd62b2b0df855f3aa4d33b9063aa0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:59:25,614 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:59:25,712 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 02:59:25,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:59:25,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:59:25,773 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:59:25,775 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:59:25,775 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:59:25,776 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:59:25,776 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:59:25,776 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:59:25,776 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:59:25,776 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:59:25,776 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:59:25,776 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:59:25,776 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:59:25,777 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:59:25,777 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:59:25,777 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:59:25,777 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:59:25,777 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:59:25,777 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:59:25,780 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:59:25,780 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:59:25,781 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:59:25,781 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:59:25,781 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:59:25,781 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:59:25,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:59:25,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:59:25,782 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:59:25,782 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:59:25,782 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:59:25,782 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:59:25,782 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:59:25,783 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:59:25,784 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:59:25,784 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:59:25,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:59:25,784 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:59:25,784 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:59:25,785 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:59:25,785 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:59:25,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:59:25,785 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:59:25,785 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:59:25,785 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:59:25,785 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_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/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 -> 68503ade3bb1f8128c7da84cd7c3e560bf5cd62b2b0df855f3aa4d33b9063aa0 [2024-11-14 02:59:26,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:59:26,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:59:26,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:59:26,125 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:59:26,125 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:59:26,128 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec1_product15.cil.c Unable to find full path for "g++" [2024-11-14 02:59:28,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:59:28,714 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:59:28,715 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/sv-benchmarks/c/product-lines/email_spec1_product15.cil.c [2024-11-14 02:59:28,739 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/data/5ba7b4066/01b4a768d85844f08a2926d7153c1ab0/FLAGfdd62e8b2 [2024-11-14 02:59:29,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/data/5ba7b4066/01b4a768d85844f08a2926d7153c1ab0 [2024-11-14 02:59:29,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:59:29,241 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:59:29,243 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:59:29,243 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:59:29,250 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:59:29,251 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:59:29" (1/1) ... [2024-11-14 02:59:29,252 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17beaad0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:29, skipping insertion in model container [2024-11-14 02:59:29,253 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:59:29" (1/1) ... [2024-11-14 02:59:29,345 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:59:30,034 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_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/sv-benchmarks/c/product-lines/email_spec1_product15.cil.c[34816,34829] [2024-11-14 02:59:30,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:59:30,359 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:59:30,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [48] [2024-11-14 02:59:30,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1128] [2024-11-14 02:59:30,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1540] [2024-11-14 02:59:30,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1549] [2024-11-14 02:59:30,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1666] [2024-11-14 02:59:30,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1891] [2024-11-14 02:59:30,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2176] [2024-11-14 02:59:30,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [2542] [2024-11-14 02:59:30,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2570] [2024-11-14 02:59:30,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2831] [2024-11-14 02:59:30,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2848] [2024-11-14 02:59:30,459 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_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/sv-benchmarks/c/product-lines/email_spec1_product15.cil.c[34816,34829] [2024-11-14 02:59:30,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:59:30,590 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:59:30,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30 WrapperNode [2024-11-14 02:59:30,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:59:30,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:59:30,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:59:30,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:59:30,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30" (1/1) ... [2024-11-14 02:59:30,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30" (1/1) ... [2024-11-14 02:59:30,725 INFO L138 Inliner]: procedures = 125, calls = 182, calls flagged for inlining = 54, calls inlined = 45, statements flattened = 877 [2024-11-14 02:59:30,726 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:59:30,726 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:59:30,726 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:59:30,727 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:59:30,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30" (1/1) ... [2024-11-14 02:59:30,743 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30" (1/1) ... [2024-11-14 02:59:30,754 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30" (1/1) ... [2024-11-14 02:59:30,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30" (1/1) ... [2024-11-14 02:59:30,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30" (1/1) ... [2024-11-14 02:59:30,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30" (1/1) ... [2024-11-14 02:59:30,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30" (1/1) ... [2024-11-14 02:59:30,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30" (1/1) ... [2024-11-14 02:59:30,837 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:59:30,838 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:59:30,838 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:59:30,838 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:59:30,839 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30" (1/1) ... [2024-11-14 02:59:30,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:59:30,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:59:30,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:59:30,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:59:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2024-11-14 02:59:30,945 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2024-11-14 02:59:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2024-11-14 02:59:30,945 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2024-11-14 02:59:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 02:59:30,946 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 02:59:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 02:59:30,946 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 02:59:30,947 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 02:59:30,947 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 02:59:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2024-11-14 02:59:30,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2024-11-14 02:59:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 02:59:30,948 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 02:59:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-14 02:59:30,948 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-14 02:59:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 02:59:30,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 02:59:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:59:30,948 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 02:59:30,948 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 02:59:30,949 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 02:59:30,949 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 02:59:30,949 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 02:59:30,949 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 02:59:30,949 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 02:59:30,949 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 02:59:30,949 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2024-11-14 02:59:30,950 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2024-11-14 02:59:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 02:59:30,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 02:59:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 02:59:30,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 02:59:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:59:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 02:59:30,950 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 02:59:30,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:59:30,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:59:31,224 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:59:31,226 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:59:32,582 INFO L? ?]: Removed 373 outVars from TransFormulas that were not future-live. [2024-11-14 02:59:32,582 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:59:33,489 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:59:33,490 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 02:59:33,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:59:33 BoogieIcfgContainer [2024-11-14 02:59:33,491 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:59:33,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:59:33,495 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:59:33,506 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:59:33,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:59:29" (1/3) ... [2024-11-14 02:59:33,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@199677f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:59:33, skipping insertion in model container [2024-11-14 02:59:33,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:30" (2/3) ... [2024-11-14 02:59:33,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@199677f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:59:33, skipping insertion in model container [2024-11-14 02:59:33,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:59:33" (3/3) ... [2024-11-14 02:59:33,509 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product15.cil.c [2024-11-14 02:59:33,533 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:59:33,536 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec1_product15.cil.c that has 18 procedures, 151 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 02:59:33,630 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:59:33,651 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;@6f450c21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:59:33,651 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:59:33,657 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 94 states have internal predecessors, (124), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-14 02:59:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 02:59:33,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:33,678 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:33,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:33,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:33,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1914840271, now seen corresponding path program 1 times [2024-11-14 02:59:33,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:33,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819347136] [2024-11-14 02:59:33,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:33,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:59:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:34,248 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 02:59:34,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:59:34,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819347136] [2024-11-14 02:59:34,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819347136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:59:34,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:59:34,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 02:59:34,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316828104] [2024-11-14 02:59:34,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:59:34,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 02:59:34,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:59:34,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 02:59:34,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 02:59:34,315 INFO L87 Difference]: Start difference. First operand has 151 states, 90 states have (on average 1.3777777777777778) internal successors, (124), 94 states have internal predecessors, (124), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 02:59:34,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:59:34,506 INFO L93 Difference]: Finished difference Result 219 states and 294 transitions. [2024-11-14 02:59:34,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 02:59:34,509 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2024-11-14 02:59:34,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:59:34,527 INFO L225 Difference]: With dead ends: 219 [2024-11-14 02:59:34,527 INFO L226 Difference]: Without dead ends: 148 [2024-11-14 02:59:34,534 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 02:59:34,542 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 02:59:34,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 02:59:34,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-11-14 02:59:34,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2024-11-14 02:59:34,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 91 states have internal predecessors, (118), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 02:59:34,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 201 transitions. [2024-11-14 02:59:34,641 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 201 transitions. Word has length 56 [2024-11-14 02:59:34,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:59:34,644 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 201 transitions. [2024-11-14 02:59:34,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 02:59:34,644 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 201 transitions. [2024-11-14 02:59:34,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-14 02:59:34,649 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:34,650 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:34,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:59:34,650 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:34,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:34,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1564046810, now seen corresponding path program 1 times [2024-11-14 02:59:34,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:34,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104371500] [2024-11-14 02:59:34,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:34,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:59:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:35,161 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 02:59:35,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:59:35,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104371500] [2024-11-14 02:59:35,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104371500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:59:35,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:59:35,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:59:35,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277078346] [2024-11-14 02:59:35,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:59:35,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:59:35,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:59:35,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:59:35,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:59:35,168 INFO L87 Difference]: Start difference. First operand 148 states and 201 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 02:59:35,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:59:35,378 INFO L93 Difference]: Finished difference Result 215 states and 282 transitions. [2024-11-14 02:59:35,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:59:35,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2024-11-14 02:59:35,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:59:35,384 INFO L225 Difference]: With dead ends: 215 [2024-11-14 02:59:35,386 INFO L226 Difference]: Without dead ends: 150 [2024-11-14 02:59:35,388 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 02:59:35,390 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:59:35,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:59:35,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-14 02:59:35,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-14 02:59:35,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 90 states have (on average 1.3333333333333333) internal successors, (120), 93 states have internal predecessors, (120), 42 states have call successors, (42), 17 states have call predecessors, (42), 17 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 02:59:35,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 203 transitions. [2024-11-14 02:59:35,435 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 203 transitions. Word has length 57 [2024-11-14 02:59:35,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:59:35,436 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 203 transitions. [2024-11-14 02:59:35,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 02:59:35,437 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 203 transitions. [2024-11-14 02:59:35,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 02:59:35,443 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:35,443 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:35,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 02:59:35,444 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:35,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:35,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1690733333, now seen corresponding path program 1 times [2024-11-14 02:59:35,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:35,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447144890] [2024-11-14 02:59:35,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:35,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:59:35,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:35,725 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 02:59:35,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:59:35,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447144890] [2024-11-14 02:59:35,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447144890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:59:35,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:59:35,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:59:35,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8993128] [2024-11-14 02:59:35,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:59:35,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:59:35,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:59:35,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:59:35,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:59:35,731 INFO L87 Difference]: Start difference. First operand 150 states and 203 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 02:59:35,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:59:35,926 INFO L93 Difference]: Finished difference Result 330 states and 465 transitions. [2024-11-14 02:59:35,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:59:35,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2024-11-14 02:59:35,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:59:35,931 INFO L225 Difference]: With dead ends: 330 [2024-11-14 02:59:35,932 INFO L226 Difference]: Without dead ends: 198 [2024-11-14 02:59:35,935 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 02:59:35,939 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 57 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 02:59:35,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 352 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 02:59:35,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-11-14 02:59:35,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 193. [2024-11-14 02:59:35,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 122 states have (on average 1.4180327868852458) internal successors, (173), 125 states have internal predecessors, (173), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-14 02:59:35,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 278 transitions. [2024-11-14 02:59:35,984 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 278 transitions. Word has length 62 [2024-11-14 02:59:35,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:59:35,984 INFO L471 AbstractCegarLoop]: Abstraction has 193 states and 278 transitions. [2024-11-14 02:59:35,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-14 02:59:35,985 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 278 transitions. [2024-11-14 02:59:35,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-14 02:59:35,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:35,988 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:35,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 02:59:35,988 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:35,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:35,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1124142675, now seen corresponding path program 1 times [2024-11-14 02:59:35,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:35,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247941088] [2024-11-14 02:59:35,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:35,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:59:36,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:36,332 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 02:59:36,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:59:36,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247941088] [2024-11-14 02:59:36,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247941088] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:59:36,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088679354] [2024-11-14 02:59:36,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:36,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:36,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:59:36,336 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:59:36,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 02:59:36,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:36,836 INFO L255 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:59:36,845 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:36,921 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 02:59:36,922 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:59:37,057 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 02:59:37,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088679354] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:59:37,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1155112505] [2024-11-14 02:59:37,088 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2024-11-14 02:59:37,089 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:59:37,093 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:59:37,099 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:59:37,099 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:00:11,526 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 03:00:11,653 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-14 03:00:11,812 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:01:17,537 WARN L286 SmtUtils]: Spent 11.67s on a formula simplification. DAG size of input: 445 DAG size of output: 445 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:01:31,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1155112505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:31,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:01:31,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 03:01:31,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868777914] [2024-11-14 03:01:31,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:31,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:01:31,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:31,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:01:31,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:01:31,241 INFO L87 Difference]: Start difference. First operand 193 states and 278 transitions. Second operand has 23 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-14 03:01:39,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:39,002 INFO L93 Difference]: Finished difference Result 400 states and 592 transitions. [2024-11-14 03:01:39,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 03:01:39,003 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 63 [2024-11-14 03:01:39,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:39,006 INFO L225 Difference]: With dead ends: 400 [2024-11-14 03:01:39,006 INFO L226 Difference]: Without dead ends: 225 [2024-11-14 03:01:39,008 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 79.4s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:01:39,009 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 25 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:39,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2143 Invalid, 1592 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-14 03:01:39,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2024-11-14 03:01:39,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 216. [2024-11-14 03:01:39,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 144 states have (on average 1.4305555555555556) internal successors, (206), 147 states have internal predecessors, (206), 53 states have call successors, (53), 18 states have call predecessors, (53), 18 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-14 03:01:39,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 311 transitions. [2024-11-14 03:01:39,109 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 311 transitions. Word has length 63 [2024-11-14 03:01:39,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:39,109 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 311 transitions. [2024-11-14 03:01:39,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.2) internal successors, (33), 14 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-14 03:01:39,110 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 311 transitions. [2024-11-14 03:01:39,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 03:01:39,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:39,113 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:39,134 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:01:39,313 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:01:39,314 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:39,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:39,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1697867646, now seen corresponding path program 1 times [2024-11-14 03:01:39,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:39,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755042530] [2024-11-14 03:01:39,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:39,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:01:39,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:39,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755042530] [2024-11-14 03:01:39,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755042530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:01:39,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:01:39,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:01:39,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951030372] [2024-11-14 03:01:39,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:01:39,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:01:39,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:39,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:01:39,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:39,444 INFO L87 Difference]: Start difference. First operand 216 states and 311 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 03:01:39,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:39,673 INFO L93 Difference]: Finished difference Result 525 states and 786 transitions. [2024-11-14 03:01:39,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:01:39,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 68 [2024-11-14 03:01:39,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:39,677 INFO L225 Difference]: With dead ends: 525 [2024-11-14 03:01:39,677 INFO L226 Difference]: Without dead ends: 333 [2024-11-14 03:01:39,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:01:39,679 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 55 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:39,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 355 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:01:39,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-14 03:01:39,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 328. [2024-11-14 03:01:39,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 231 states have (on average 1.4805194805194806) internal successors, (342), 234 states have internal predecessors, (342), 78 states have call successors, (78), 18 states have call predecessors, (78), 18 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-14 03:01:39,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 497 transitions. [2024-11-14 03:01:39,805 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 497 transitions. Word has length 68 [2024-11-14 03:01:39,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:39,806 INFO L471 AbstractCegarLoop]: Abstraction has 328 states and 497 transitions. [2024-11-14 03:01:39,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-14 03:01:39,806 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 497 transitions. [2024-11-14 03:01:39,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 03:01:39,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:39,809 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:39,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:01:39,809 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:39,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:39,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1563658335, now seen corresponding path program 1 times [2024-11-14 03:01:39,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:39,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782729259] [2024-11-14 03:01:39,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:39,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:39,988 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:01:39,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:39,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782729259] [2024-11-14 03:01:39,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782729259] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:01:39,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124090047] [2024-11-14 03:01:39,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:39,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:01:39,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:01:39,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:01:39,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:01:40,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:40,376 INFO L255 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:01:40,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:40,416 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:01:40,416 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:01:40,530 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-14 03:01:40,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124090047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:01:40,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1458568092] [2024-11-14 03:01:40,536 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-14 03:01:40,536 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:01:40,536 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:01:40,537 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:01:40,537 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:02:22,339 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 03:02:22,478 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 429 for LOIs [2024-11-14 03:02:23,789 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:02:50,892 WARN L286 SmtUtils]: Spent 8.65s on a formula simplification. DAG size of input: 429 DAG size of output: 430 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:03:03,665 WARN L286 SmtUtils]: Spent 12.30s on a formula simplification. DAG size of input: 453 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:03:48,054 WARN L286 SmtUtils]: Spent 11.41s on a formula simplification. DAG size of input: 446 DAG size of output: 446 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:04:14,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1458568092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:04:14,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:04:14,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-14 03:04:14,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409097511] [2024-11-14 03:04:14,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:04:14,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-14 03:04:14,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:04:14,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-14 03:04:14,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:04:14,761 INFO L87 Difference]: Start difference. First operand 328 states and 497 transitions. Second operand has 26 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-14 03:04:26,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:04:26,073 INFO L93 Difference]: Finished difference Result 664 states and 1033 transitions. [2024-11-14 03:04:26,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-14 03:04:26,075 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 69 [2024-11-14 03:04:26,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:04:26,078 INFO L225 Difference]: With dead ends: 664 [2024-11-14 03:04:26,078 INFO L226 Difference]: Without dead ends: 399 [2024-11-14 03:04:26,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 111.0s TimeCoverageRelationStatistics Valid=96, Invalid=834, Unknown=0, NotChecked=0, Total=930 [2024-11-14 03:04:26,081 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 61 mSDsluCounter, 2135 mSDsCounter, 0 mSdLazyCounter, 2119 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 2289 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:04:26,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 2289 Invalid, 2127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2119 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2024-11-14 03:04:26,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-14 03:04:26,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 342. [2024-11-14 03:04:26,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 243 states have (on average 1.477366255144033) internal successors, (359), 246 states have internal predecessors, (359), 79 states have call successors, (79), 19 states have call predecessors, (79), 19 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-14 03:04:26,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 516 transitions. [2024-11-14 03:04:26,213 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 516 transitions. Word has length 69 [2024-11-14 03:04:26,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:04:26,213 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 516 transitions. [2024-11-14 03:04:26,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2024-11-14 03:04:26,214 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 516 transitions. [2024-11-14 03:04:26,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-14 03:04:26,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:04:26,217 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:04:26,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 03:04:26,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 03:04:26,421 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:04:26,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:04:26,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1272519162, now seen corresponding path program 1 times [2024-11-14 03:04:26,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:04:26,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378138766] [2024-11-14 03:04:26,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:04:26,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:04:26,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:04:26,694 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:04:26,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:04:26,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378138766] [2024-11-14 03:04:26,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378138766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:04:26,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565660291] [2024-11-14 03:04:26,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:04:26,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:04:26,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:04:26,701 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:04:26,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:04:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:04:27,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:04:27,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:04:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:04:27,167 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:04:27,258 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:04:27,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565660291] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:04:27,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [115227744] [2024-11-14 03:04:27,262 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2024-11-14 03:04:27,262 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:04:27,263 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:04:27,263 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:04:27,263 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:05:20,200 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 03:05:20,350 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 222 for LOIs [2024-11-14 03:05:20,464 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 221 for LOIs [2024-11-14 03:05:20,619 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-14 03:05:20,761 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 223 for LOIs [2024-11-14 03:05:20,860 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:06:34,151 WARN L286 SmtUtils]: Spent 14.51s on a formula simplification. DAG size of input: 504 DAG size of output: 499 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:06:57,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [115227744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:06:57,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:06:57,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2024-11-14 03:06:57,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198405161] [2024-11-14 03:06:57,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:06:57,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-14 03:06:57,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:06:57,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-14 03:06:57,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1216, Unknown=0, NotChecked=0, Total=1332 [2024-11-14 03:06:57,730 INFO L87 Difference]: Start difference. First operand 342 states and 516 transitions. Second operand has 32 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-14 03:07:16,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:07:16,637 INFO L93 Difference]: Finished difference Result 697 states and 1080 transitions. [2024-11-14 03:07:16,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-14 03:07:16,638 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 72 [2024-11-14 03:07:16,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:07:16,643 INFO L225 Difference]: With dead ends: 697 [2024-11-14 03:07:16,643 INFO L226 Difference]: Without dead ends: 432 [2024-11-14 03:07:16,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 339 ImplicationChecksByTransitivity, 102.2s TimeCoverageRelationStatistics Valid=123, Invalid=1283, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 03:07:16,646 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 55 mSDsluCounter, 2562 mSDsCounter, 0 mSdLazyCounter, 2873 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 2723 SdHoareTripleChecker+Invalid, 2883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:07:16,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 2723 Invalid, 2883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2873 Invalid, 0 Unknown, 0 Unchecked, 13.2s Time] [2024-11-14 03:07:16,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2024-11-14 03:07:16,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 378. [2024-11-14 03:07:16,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 273 states have (on average 1.468864468864469) internal successors, (401), 276 states have internal predecessors, (401), 82 states have call successors, (82), 22 states have call predecessors, (82), 22 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-14 03:07:16,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 564 transitions. [2024-11-14 03:07:16,814 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 564 transitions. Word has length 72 [2024-11-14 03:07:16,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:07:16,815 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 564 transitions. [2024-11-14 03:07:16,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2024-11-14 03:07:16,816 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 564 transitions. [2024-11-14 03:07:16,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-14 03:07:16,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:07:16,818 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:07:16,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 03:07:17,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:07:17,019 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:07:17,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:07:17,020 INFO L85 PathProgramCache]: Analyzing trace with hash -19576458, now seen corresponding path program 1 times [2024-11-14 03:07:17,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:07:17,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915289393] [2024-11-14 03:07:17,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:07:17,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:07:17,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:07:17,161 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:07:17,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:07:17,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915289393] [2024-11-14 03:07:17,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915289393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:07:17,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [732937541] [2024-11-14 03:07:17,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:07:17,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:07:17,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:07:17,166 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:07:17,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:07:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:07:17,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:07:17,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:07:17,699 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:07:17,700 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:07:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:07:17,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [732937541] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:07:17,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [187082614] [2024-11-14 03:07:17,837 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2024-11-14 03:07:17,839 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:07:17,840 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:07:17,840 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:07:17,840 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:07:56,428 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 03:07:56,572 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2024-11-14 03:07:56,706 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:08:59,419 WARN L286 SmtUtils]: Spent 10.74s on a formula simplification. DAG size of input: 444 DAG size of output: 444 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:09:33,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [187082614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:09:33,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:09:33,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 03:09:33,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070736319] [2024-11-14 03:09:33,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:33,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 03:09:33,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:09:33,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 03:09:33,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:09:33,171 INFO L87 Difference]: Start difference. First operand 378 states and 564 transitions. Second operand has 27 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-14 03:09:44,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:44,144 INFO L93 Difference]: Finished difference Result 691 states and 1059 transitions. [2024-11-14 03:09:44,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 03:09:44,145 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 71 [2024-11-14 03:09:44,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:44,149 INFO L225 Difference]: With dead ends: 691 [2024-11-14 03:09:44,149 INFO L226 Difference]: Without dead ends: 426 [2024-11-14 03:09:44,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 96.5s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:09:44,152 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 17 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 2098 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:09:44,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2269 Invalid, 2106 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2098 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2024-11-14 03:09:44,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-14 03:09:44,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 398. [2024-11-14 03:09:44,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 293 states have (on average 1.47098976109215) internal successors, (431), 296 states have internal predecessors, (431), 82 states have call successors, (82), 22 states have call predecessors, (82), 22 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-14 03:09:44,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 594 transitions. [2024-11-14 03:09:44,318 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 594 transitions. Word has length 71 [2024-11-14 03:09:44,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:44,318 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 594 transitions. [2024-11-14 03:09:44,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.1578947368421053) internal successors, (41), 18 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2024-11-14 03:09:44,318 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 594 transitions. [2024-11-14 03:09:44,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 03:09:44,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:44,321 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:09:44,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:09:44,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:09:44,521 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:44,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:44,522 INFO L85 PathProgramCache]: Analyzing trace with hash -171178341, now seen corresponding path program 1 times [2024-11-14 03:09:44,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:09:44,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077645164] [2024-11-14 03:09:44,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:44,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:09:44,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:44,748 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 03:09:44,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:09:44,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077645164] [2024-11-14 03:09:44,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077645164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:09:44,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710889283] [2024-11-14 03:09:44,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:44,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:09:44,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:09:44,752 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:09:44,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:09:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:45,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:09:45,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:45,270 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 03:09:45,270 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:09:45,394 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 03:09:45,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710889283] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:09:45,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1854380278] [2024-11-14 03:09:45,397 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2024-11-14 03:09:45,397 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:09:45,397 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:09:45,398 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:09:45,398 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:31,356 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 229 for LOIs [2024-11-14 03:10:31,496 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 235 for LOIs [2024-11-14 03:10:31,648 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 250 for LOIs [2024-11-14 03:10:34,914 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 227 for LOIs [2024-11-14 03:10:35,031 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 248 for LOIs [2024-11-14 03:10:38,384 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 219 for LOIs [2024-11-14 03:10:38,476 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 246 for LOIs [2024-11-14 03:10:39,395 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:12:07,375 WARN L286 SmtUtils]: Spent 6.26s on a formula simplification. DAG size of input: 262 DAG size of output: 246 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:12:30,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1854380278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:12:30,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:12:30,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [5, 5, 5] total 51 [2024-11-14 03:12:30,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210355917] [2024-11-14 03:12:30,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:12:30,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-14 03:12:30,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:12:30,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-14 03:12:30,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=2401, Unknown=0, NotChecked=0, Total=2550 [2024-11-14 03:12:30,757 INFO L87 Difference]: Start difference. First operand 398 states and 594 transitions. Second operand has 46 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 27 states have internal predecessors, (37), 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 03:12:47,782 WARN L286 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 253 DAG size of output: 242 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:12:56,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:56,287 INFO L93 Difference]: Finished difference Result 808 states and 1235 transitions. [2024-11-14 03:12:56,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-14 03:12:56,288 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 27 states have internal predecessors, (37), 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 74 [2024-11-14 03:12:56,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:56,294 INFO L225 Difference]: With dead ends: 808 [2024-11-14 03:12:56,294 INFO L226 Difference]: Without dead ends: 503 [2024-11-14 03:12:56,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 174 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 119.4s TimeCoverageRelationStatistics Valid=160, Invalid=2596, Unknown=0, NotChecked=0, Total=2756 [2024-11-14 03:12:56,299 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 97 mSDsluCounter, 3443 mSDsCounter, 0 mSdLazyCounter, 4833 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 3616 SdHoareTripleChecker+Invalid, 4859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 4833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:12:56,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 3616 Invalid, 4859 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [26 Valid, 4833 Invalid, 0 Unknown, 0 Unchecked, 17.0s Time] [2024-11-14 03:12:56,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-14 03:12:56,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 430. [2024-11-14 03:12:56,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 313 states have (on average 1.4440894568690097) internal successors, (452), 316 states have internal predecessors, (452), 89 states have call successors, (89), 29 states have call predecessors, (89), 27 states have return successors, (88), 86 states have call predecessors, (88), 88 states have call successors, (88) [2024-11-14 03:12:56,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 629 transitions. [2024-11-14 03:12:56,530 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 629 transitions. Word has length 74 [2024-11-14 03:12:56,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:56,531 INFO L471 AbstractCegarLoop]: Abstraction has 430 states and 629 transitions. [2024-11-14 03:12:56,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 27 states have internal predecessors, (37), 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 03:12:56,531 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 629 transitions. [2024-11-14 03:12:56,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-14 03:12:56,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:56,534 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, 1, 1, 1] [2024-11-14 03:12:56,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:12:56,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:12:56,735 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:12:56,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:56,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1009494423, now seen corresponding path program 1 times [2024-11-14 03:12:56,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:12:56,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368079015] [2024-11-14 03:12:56,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:56,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:12:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:56,999 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 03:12:56,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:12:57,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368079015] [2024-11-14 03:12:57,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368079015] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:12:57,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507468643] [2024-11-14 03:12:57,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:57,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:12:57,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:12:57,002 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:12:57,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa534c14-9c4c-4e6f-aca9-e9785c1b1b6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:12:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:57,414 INFO L255 TraceCheckSpWp]: Trace formula consists of 887 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:12:57,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:57,454 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 03:12:57,454 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:57,546 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 03:12:57,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507468643] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:12:57,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1505813637] [2024-11-14 03:12:57,550 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2024-11-14 03:12:57,550 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:12:57,550 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:12:57,550 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:12:57,550 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs