./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product18.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/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_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product18.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/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_8565b370-bfab-4fa3-ad94-72d868554bc2/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 e1a1a15d818854b6fd39e860ed8f86805463715275e4ae9feedab248e5877daf --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:02:23,480 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:02:23,566 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 03:02:23,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:02:23,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:02:23,623 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:02:23,624 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:02:23,625 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:02:23,626 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:02:23,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:02:23,626 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:02:23,626 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:02:23,627 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:02:23,627 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:02:23,627 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:02:23,627 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:02:23,628 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:02:23,629 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:02:23,629 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:02:23,629 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:02:23,629 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:02:23,629 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:02:23,630 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:02:23,630 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:02:23,630 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 03:02:23,630 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:02:23,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 03:02:23,631 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:02:23,631 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:02:23,631 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:02:23,631 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:02:23,631 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:02:23,631 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 03:02:23,632 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:02:23,632 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:02:23,632 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:02:23,632 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:02:23,633 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:02:23,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:02:23,633 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:02:23,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:02:23,634 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:02:23,634 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:02:23,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:02:23,634 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:02:23,634 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:02:23,634 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:02:23,634 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_8565b370-bfab-4fa3-ad94-72d868554bc2/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 -> e1a1a15d818854b6fd39e860ed8f86805463715275e4ae9feedab248e5877daf [2024-11-14 03:02:23,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:02:24,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:02:24,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:02:24,007 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:02:24,007 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:02:24,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/product-lines/email_spec27_product18.cil.c Unable to find full path for "g++" [2024-11-14 03:02:25,921 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:02:26,416 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:02:26,418 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/sv-benchmarks/c/product-lines/email_spec27_product18.cil.c [2024-11-14 03:02:26,448 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/data/2088fdd4c/8cd80c39cbe345dc8ce14913b4f33279/FLAGbb9da6d22 [2024-11-14 03:02:26,466 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/data/2088fdd4c/8cd80c39cbe345dc8ce14913b4f33279 [2024-11-14 03:02:26,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:02:26,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:02:26,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:02:26,475 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:02:26,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:02:26,481 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:02:26" (1/1) ... [2024-11-14 03:02:26,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bac4daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:26, skipping insertion in model container [2024-11-14 03:02:26,482 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:02:26" (1/1) ... [2024-11-14 03:02:26,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:02:27,239 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_8565b370-bfab-4fa3-ad94-72d868554bc2/sv-benchmarks/c/product-lines/email_spec27_product18.cil.c[62382,62395] [2024-11-14 03:02:27,242 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:02:27,261 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:02:27,269 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2024-11-14 03:02:27,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [363] [2024-11-14 03:02:27,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [729] [2024-11-14 03:02:27,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1801] [2024-11-14 03:02:27,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1908] [2024-11-14 03:02:27,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1925] [2024-11-14 03:02:27,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2329] [2024-11-14 03:02:27,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2545] [2024-11-14 03:02:27,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2831] [2024-11-14 03:02:27,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2863] [2024-11-14 03:02:27,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2898] [2024-11-14 03:02:27,454 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_8565b370-bfab-4fa3-ad94-72d868554bc2/sv-benchmarks/c/product-lines/email_spec27_product18.cil.c[62382,62395] [2024-11-14 03:02:27,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:02:27,495 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:02:27,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27 WrapperNode [2024-11-14 03:02:27,498 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:02:27,500 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:02:27,502 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:02:27,502 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:02:27,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27" (1/1) ... [2024-11-14 03:02:27,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27" (1/1) ... [2024-11-14 03:02:27,622 INFO L138 Inliner]: procedures = 127, calls = 186, calls flagged for inlining = 57, calls inlined = 49, statements flattened = 876 [2024-11-14 03:02:27,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:02:27,623 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:02:27,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:02:27,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:02:27,635 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27" (1/1) ... [2024-11-14 03:02:27,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27" (1/1) ... [2024-11-14 03:02:27,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27" (1/1) ... [2024-11-14 03:02:27,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27" (1/1) ... [2024-11-14 03:02:27,658 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27" (1/1) ... [2024-11-14 03:02:27,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27" (1/1) ... [2024-11-14 03:02:27,669 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27" (1/1) ... [2024-11-14 03:02:27,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27" (1/1) ... [2024-11-14 03:02:27,678 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:02:27,679 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:02:27,679 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:02:27,679 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:02:27,680 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27" (1/1) ... [2024-11-14 03:02:27,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:02:27,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:02:27,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:02:27,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:02:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-14 03:02:27,756 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-14 03:02:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-14 03:02:27,756 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-14 03:02:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-14 03:02:27,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-14 03:02:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-14 03:02:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-14 03:02:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-14 03:02:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-14 03:02:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-14 03:02:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-14 03:02:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-14 03:02:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-14 03:02:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-14 03:02:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-14 03:02:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:02:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-14 03:02:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-14 03:02:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-14 03:02:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-14 03:02:27,758 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-14 03:02:27,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-14 03:02:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-14 03:02:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-14 03:02:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2024-11-14 03:02:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2024-11-14 03:02:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2024-11-14 03:02:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2024-11-14 03:02:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-14 03:02:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-14 03:02:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-14 03:02:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-14 03:02:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2024-11-14 03:02:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2024-11-14 03:02:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:02:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-14 03:02:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-14 03:02:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:02:27,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:02:27,994 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:02:27,996 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:02:29,105 INFO L? ?]: Removed 399 outVars from TransFormulas that were not future-live. [2024-11-14 03:02:29,105 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:02:29,775 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:02:29,776 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-14 03:02:29,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:02:29 BoogieIcfgContainer [2024-11-14 03:02:29,776 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:02:29,779 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:02:29,779 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:02:29,784 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:02:29,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:02:26" (1/3) ... [2024-11-14 03:02:29,785 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bc26cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:02:29, skipping insertion in model container [2024-11-14 03:02:29,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:02:27" (2/3) ... [2024-11-14 03:02:29,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59bc26cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:02:29, skipping insertion in model container [2024-11-14 03:02:29,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:02:29" (3/3) ... [2024-11-14 03:02:29,787 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product18.cil.c [2024-11-14 03:02:29,805 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:02:29,808 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG email_spec27_product18.cil.c that has 19 procedures, 153 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-14 03:02:29,893 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:02:29,912 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;@837c274, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:02:29,913 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 03:02:29,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 153 states, 92 states have (on average 1.358695652173913) internal successors, (125), 94 states have internal predecessors, (125), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-11-14 03:02:29,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-14 03:02:29,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:29,933 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:02:29,933 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:02:29,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:29,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1319926125, now seen corresponding path program 1 times [2024-11-14 03:02:29,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:29,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86443198] [2024-11-14 03:02:29,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:29,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:02:30,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:30,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86443198] [2024-11-14 03:02:30,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86443198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:30,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:30,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 03:02:30,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557271910] [2024-11-14 03:02:30,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:30,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-14 03:02:30,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:30,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-14 03:02:30,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:02:30,419 INFO L87 Difference]: Start difference. First operand has 153 states, 92 states have (on average 1.358695652173913) internal successors, (125), 94 states have internal predecessors, (125), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:02:30,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:30,562 INFO L93 Difference]: Finished difference Result 223 states and 292 transitions. [2024-11-14 03:02:30,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-14 03:02:30,566 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 68 [2024-11-14 03:02:30,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:30,576 INFO L225 Difference]: With dead ends: 223 [2024-11-14 03:02:30,577 INFO L226 Difference]: Without dead ends: 150 [2024-11-14 03:02:30,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-14 03:02:30,586 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:30,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:02:30,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-14 03:02:30,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-14 03:02:30,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 90 states have (on average 1.3222222222222222) internal successors, (119), 91 states have internal predecessors, (119), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 03:02:30,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 200 transitions. [2024-11-14 03:02:30,658 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 200 transitions. Word has length 68 [2024-11-14 03:02:30,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:30,659 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 200 transitions. [2024-11-14 03:02:30,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.5) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:02:30,660 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 200 transitions. [2024-11-14 03:02:30,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-14 03:02:30,667 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:30,667 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:02:30,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:02:30,668 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:02:30,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:30,669 INFO L85 PathProgramCache]: Analyzing trace with hash -274436429, now seen corresponding path program 1 times [2024-11-14 03:02:30,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:30,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666755062] [2024-11-14 03:02:30,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:30,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:31,135 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:02:31,135 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:31,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666755062] [2024-11-14 03:02:31,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666755062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:31,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:31,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:02:31,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215477920] [2024-11-14 03:02:31,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:31,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:02:31,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:31,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:02:31,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:02:31,142 INFO L87 Difference]: Start difference. First operand 150 states and 200 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:02:31,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:31,260 INFO L93 Difference]: Finished difference Result 219 states and 280 transitions. [2024-11-14 03:02:31,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:02:31,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 69 [2024-11-14 03:02:31,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:31,263 INFO L225 Difference]: With dead ends: 219 [2024-11-14 03:02:31,264 INFO L226 Difference]: Without dead ends: 152 [2024-11-14 03:02:31,264 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 03:02:31,265 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:31,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 345 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:02:31,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-14 03:02:31,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-14 03:02:31,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 92 states have (on average 1.315217391304348) internal successors, (121), 93 states have internal predecessors, (121), 41 states have call successors, (41), 18 states have call predecessors, (41), 18 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-14 03:02:31,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 202 transitions. [2024-11-14 03:02:31,284 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 202 transitions. Word has length 69 [2024-11-14 03:02:31,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:31,285 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 202 transitions. [2024-11-14 03:02:31,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:02:31,285 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 202 transitions. [2024-11-14 03:02:31,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-14 03:02:31,288 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:31,288 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:02:31,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 03:02:31,288 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:02:31,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:31,289 INFO L85 PathProgramCache]: Analyzing trace with hash -2077341384, now seen corresponding path program 1 times [2024-11-14 03:02:31,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:31,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41962946] [2024-11-14 03:02:31,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:31,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:31,500 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-14 03:02:31,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:31,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41962946] [2024-11-14 03:02:31,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41962946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:02:31,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:02:31,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:02:31,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546555405] [2024-11-14 03:02:31,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:02:31,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:02:31,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:31,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:02:31,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:02:31,525 INFO L87 Difference]: Start difference. First operand 152 states and 202 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:02:31,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:31,671 INFO L93 Difference]: Finished difference Result 334 states and 463 transitions. [2024-11-14 03:02:31,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:02:31,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 74 [2024-11-14 03:02:31,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:31,675 INFO L225 Difference]: With dead ends: 334 [2024-11-14 03:02:31,678 INFO L226 Difference]: Without dead ends: 200 [2024-11-14 03:02:31,679 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 03:02:31,680 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 57 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:31,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 351 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:02:31,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-14 03:02:31,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 195. [2024-11-14 03:02:31,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 124 states have (on average 1.403225806451613) internal successors, (174), 125 states have internal predecessors, (174), 52 states have call successors, (52), 18 states have call predecessors, (52), 18 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 03:02:31,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 277 transitions. [2024-11-14 03:02:31,718 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 277 transitions. Word has length 74 [2024-11-14 03:02:31,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:31,718 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 277 transitions. [2024-11-14 03:02:31,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-14 03:02:31,718 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 277 transitions. [2024-11-14 03:02:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 03:02:31,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:31,725 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:02:31,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 03:02:31,725 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:02:31,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash 147347233, now seen corresponding path program 1 times [2024-11-14 03:02:31,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:31,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90182133] [2024-11-14 03:02:31,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:31,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:31,967 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 03:02:31,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:31,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90182133] [2024-11-14 03:02:31,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90182133] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:02:31,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183245100] [2024-11-14 03:02:31,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:31,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:02:31,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:02:31,972 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:02:31,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 03:02:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:32,457 INFO L255 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:02:32,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:02:32,550 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 03:02:32,550 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:02:32,711 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 03:02:32,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183245100] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:02:32,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [522116290] [2024-11-14 03:02:32,746 INFO L159 IcfgInterpreter]: Started Sifa with 64 locations of interest [2024-11-14 03:02:32,746 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:02:32,751 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:02:32,757 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:02:32,757 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:03:00,128 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 03:03:00,255 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2024-11-14 03:03:00,402 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:03:55,150 WARN L286 SmtUtils]: Spent 9.48s on a formula simplification. DAG size of input: 447 DAG size of output: 447 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:04:05,432 WARN L286 SmtUtils]: Spent 9.51s on a formula simplification. DAG size of input: 448 DAG size of output: 447 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:04:13,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [522116290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:04:13,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:04:13,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-14 03:04:13,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696938699] [2024-11-14 03:04:13,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:04:13,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-14 03:04:13,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:04:13,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-14 03:04:13,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:04:13,243 INFO L87 Difference]: Start difference. First operand 195 states and 277 transitions. Second operand has 23 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 03:04:20,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:04:20,204 INFO L93 Difference]: Finished difference Result 404 states and 590 transitions. [2024-11-14 03:04:20,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-14 03:04:20,204 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 75 [2024-11-14 03:04:20,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:04:20,207 INFO L225 Difference]: With dead ends: 404 [2024-11-14 03:04:20,208 INFO L226 Difference]: Without dead ends: 227 [2024-11-14 03:04:20,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 200 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 72.8s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2024-11-14 03:04:20,210 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 25 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 2317 SdHoareTripleChecker+Invalid, 1575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:04:20,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 2317 Invalid, 1575 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-14 03:04:20,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2024-11-14 03:04:20,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 218. [2024-11-14 03:04:20,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 146 states have (on average 1.417808219178082) internal successors, (207), 147 states have internal predecessors, (207), 52 states have call successors, (52), 19 states have call predecessors, (52), 19 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-14 03:04:20,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 310 transitions. [2024-11-14 03:04:20,309 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 310 transitions. Word has length 75 [2024-11-14 03:04:20,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:04:20,309 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 310 transitions. [2024-11-14 03:04:20,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 2.6) internal successors, (39), 14 states have internal predecessors, (39), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 03:04:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 310 transitions. [2024-11-14 03:04:20,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-14 03:04:20,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:04:20,315 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:04:20,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 03:04:20,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:04:20,515 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:04:20,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:04:20,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1048867847, now seen corresponding path program 1 times [2024-11-14 03:04:20,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:04:20,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617776819] [2024-11-14 03:04:20,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:04:20,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:04:20,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:04:20,629 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 03:04:20,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:04:20,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617776819] [2024-11-14 03:04:20,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617776819] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:04:20,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:04:20,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 03:04:20,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307707769] [2024-11-14 03:04:20,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:04:20,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 03:04:20,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:04:20,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 03:04:20,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 03:04:20,631 INFO L87 Difference]: Start difference. First operand 218 states and 310 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-14 03:04:20,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:04:20,809 INFO L93 Difference]: Finished difference Result 529 states and 784 transitions. [2024-11-14 03:04:20,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 03:04:20,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 80 [2024-11-14 03:04:20,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:04:20,812 INFO L225 Difference]: With dead ends: 529 [2024-11-14 03:04:20,812 INFO L226 Difference]: Without dead ends: 335 [2024-11-14 03:04:20,813 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 03:04:20,814 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 55 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:04:20,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 352 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:04:20,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2024-11-14 03:04:20,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 330. [2024-11-14 03:04:20,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 233 states have (on average 1.4721030042918455) internal successors, (343), 234 states have internal predecessors, (343), 77 states have call successors, (77), 19 states have call predecessors, (77), 19 states have return successors, (76), 76 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-14 03:04:20,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 496 transitions. [2024-11-14 03:04:20,913 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 496 transitions. Word has length 80 [2024-11-14 03:04:20,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:04:20,913 INFO L471 AbstractCegarLoop]: Abstraction has 330 states and 496 transitions. [2024-11-14 03:04:20,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-14 03:04:20,914 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 496 transitions. [2024-11-14 03:04:20,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-14 03:04:20,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:04:20,916 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:04:20,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 03:04:20,917 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:04:20,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:04:20,917 INFO L85 PathProgramCache]: Analyzing trace with hash -952678515, now seen corresponding path program 1 times [2024-11-14 03:04:20,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:04:20,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500196253] [2024-11-14 03:04:20,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:04:20,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:04:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:04:21,100 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 03:04:21,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:04:21,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500196253] [2024-11-14 03:04:21,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500196253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:04:21,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922893287] [2024-11-14 03:04:21,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:04:21,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:04:21,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:04:21,104 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:04:21,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 03:04:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:04:21,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:04:21,462 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:04:21,494 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 03:04:21,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:04:21,599 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 03:04:21,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922893287] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:04:21,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2688361] [2024-11-14 03:04:21,603 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2024-11-14 03:04:21,603 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:04:21,603 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:04:21,603 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:04:21,604 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:04:52,527 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 03:04:52,628 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-14 03:04:53,780 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:05:15,210 WARN L286 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 431 DAG size of output: 432 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:05:25,382 WARN L286 SmtUtils]: Spent 9.83s on a formula simplification. DAG size of input: 455 DAG size of output: 451 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:06:03,468 WARN L286 SmtUtils]: Spent 9.59s on a formula simplification. DAG size of input: 448 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:06:13,984 WARN L286 SmtUtils]: Spent 9.67s on a formula simplification. DAG size of input: 449 DAG size of output: 448 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:06:26,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2688361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:06:26,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:06:26,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 03:06:26,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164898927] [2024-11-14 03:06:26,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:06:26,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 03:06:26,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:06:26,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 03:06:26,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=891, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:06:26,992 INFO L87 Difference]: Start difference. First operand 330 states and 496 transitions. Second operand has 27 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 17 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-14 03:06:50,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:06:50,530 INFO L93 Difference]: Finished difference Result 670 states and 1033 transitions. [2024-11-14 03:06:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-14 03:06:50,530 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 17 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 81 [2024-11-14 03:06:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:06:50,533 INFO L225 Difference]: With dead ends: 670 [2024-11-14 03:06:50,534 INFO L226 Difference]: Without dead ends: 403 [2024-11-14 03:06:50,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 108.1s TimeCoverageRelationStatistics Valid=131, Invalid=1129, Unknown=0, NotChecked=0, Total=1260 [2024-11-14 03:06:50,536 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 87 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 2332 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-14 03:06:50,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 2332 Invalid, 1954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [14 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2024-11-14 03:06:50,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-14 03:06:50,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 344. [2024-11-14 03:06:50,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 245 states have (on average 1.469387755102041) internal successors, (360), 246 states have internal predecessors, (360), 78 states have call successors, (78), 20 states have call predecessors, (78), 20 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2024-11-14 03:06:50,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 515 transitions. [2024-11-14 03:06:50,634 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 515 transitions. Word has length 81 [2024-11-14 03:06:50,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:06:50,635 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 515 transitions. [2024-11-14 03:06:50,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 17 states have internal predecessors, (42), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2024-11-14 03:06:50,635 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 515 transitions. [2024-11-14 03:06:50,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-14 03:06:50,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:06:50,638 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:06:50,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-14 03:06:50,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-14 03:06:50,838 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:06:50,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:06:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash -416925592, now seen corresponding path program 1 times [2024-11-14 03:06:50,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:06:50,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923824253] [2024-11-14 03:06:50,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:06:50,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:06:50,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:06:51,027 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 03:06:51,027 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:06:51,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923824253] [2024-11-14 03:06:51,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923824253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:06:51,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513429683] [2024-11-14 03:06:51,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:06:51,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:06:51,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:06:51,030 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:06:51,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 03:06:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:06:51,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:06:51,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:06:51,457 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 03:06:51,458 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:06:51,543 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 03:06:51,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513429683] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:06:51,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [651141165] [2024-11-14 03:06:51,545 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2024-11-14 03:06:51,546 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:06:51,546 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:06:51,546 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:06:51,546 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:07:39,096 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 03:07:39,194 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 477 for LOIs [2024-11-14 03:07:39,938 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 486 for LOIs [2024-11-14 03:07:40,792 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 422 for LOIs [2024-11-14 03:07:41,065 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2024-11-14 03:07:41,165 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:08:36,890 WARN L286 SmtUtils]: Spent 11.01s on a formula simplification. DAG size of input: 506 DAG size of output: 501 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:08:48,592 WARN L286 SmtUtils]: Spent 11.06s on a formula simplification. DAG size of input: 507 DAG size of output: 501 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:09:37,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [651141165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:09:37,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:09:37,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-14 03:09:37,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189947731] [2024-11-14 03:09:37,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:09:37,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-14 03:09:37,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:09:37,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-14 03:09:37,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 03:09:37,830 INFO L87 Difference]: Start difference. First operand 344 states and 515 transitions. Second operand has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-14 03:09:51,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:51,838 INFO L93 Difference]: Finished difference Result 693 states and 1066 transitions. [2024-11-14 03:09:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 03:09:51,839 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 84 [2024-11-14 03:09:51,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:51,842 INFO L225 Difference]: With dead ends: 693 [2024-11-14 03:09:51,842 INFO L226 Difference]: Without dead ends: 426 [2024-11-14 03:09:51,843 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 356 ImplicationChecksByTransitivity, 116.7s TimeCoverageRelationStatistics Valid=117, Invalid=1289, Unknown=0, NotChecked=0, Total=1406 [2024-11-14 03:09:51,844 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 50 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 2744 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 2725 SdHoareTripleChecker+Invalid, 2753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:09:51,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 2725 Invalid, 2753 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2744 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2024-11-14 03:09:51,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-14 03:09:51,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 380. [2024-11-14 03:09:51,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 275 states have (on average 1.461818181818182) internal successors, (402), 276 states have internal predecessors, (402), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-14 03:09:51,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 563 transitions. [2024-11-14 03:09:51,971 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 563 transitions. Word has length 84 [2024-11-14 03:09:51,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:51,971 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 563 transitions. [2024-11-14 03:09:51,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.210526315789474) internal successors, (42), 18 states have internal predecessors, (42), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2024-11-14 03:09:51,972 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 563 transitions. [2024-11-14 03:09:51,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-14 03:09:51,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:51,974 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:09:51,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-14 03:09:52,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 03:09:52,175 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:52,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:52,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1296176862, now seen corresponding path program 1 times [2024-11-14 03:09:52,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:09:52,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461913226] [2024-11-14 03:09:52,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:52,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:09:52,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:52,323 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 03:09:52,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:09:52,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461913226] [2024-11-14 03:09:52,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461913226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:09:52,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185848374] [2024-11-14 03:09:52,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:52,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:09:52,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:09:52,326 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:09:52,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 03:09:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:09:52,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 03:09:52,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:09:52,717 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 03:09:52,717 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:09:52,805 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 03:09:52,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185848374] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:09:52,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [58182474] [2024-11-14 03:09:52,807 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2024-11-14 03:09:52,808 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:09:52,808 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:09:52,808 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:09:52,808 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:10:24,042 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 03:10:24,141 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2024-11-14 03:10:24,237 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:11:19,253 WARN L286 SmtUtils]: Spent 9.58s 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 03:11:29,890 WARN L286 SmtUtils]: Spent 9.58s on a formula simplification. DAG size of input: 447 DAG size of output: 446 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:11:55,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [58182474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:11:55,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:11:55,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-14 03:11:55,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27540828] [2024-11-14 03:11:55,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:11:55,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-14 03:11:55,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:11:55,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-14 03:11:55,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:11:55,647 INFO L87 Difference]: Start difference. First operand 380 states and 563 transitions. Second operand has 27 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 03:12:03,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:03,656 INFO L93 Difference]: Finished difference Result 695 states and 1057 transitions. [2024-11-14 03:12:03,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-14 03:12:03,656 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 83 [2024-11-14 03:12:03,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:03,660 INFO L225 Difference]: With dead ends: 695 [2024-11-14 03:12:03,660 INFO L226 Difference]: Without dead ends: 428 [2024-11-14 03:12:03,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 216 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 91.4s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-14 03:12:03,662 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 17 mSDsluCounter, 2037 mSDsCounter, 0 mSdLazyCounter, 1805 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2185 SdHoareTripleChecker+Invalid, 1813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-14 03:12:03,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2185 Invalid, 1813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1805 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-14 03:12:03,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-14 03:12:03,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 400. [2024-11-14 03:12:03,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 295 states have (on average 1.464406779661017) internal successors, (432), 296 states have internal predecessors, (432), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-14 03:12:03,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 593 transitions. [2024-11-14 03:12:03,803 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 593 transitions. Word has length 83 [2024-11-14 03:12:03,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:03,803 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 593 transitions. [2024-11-14 03:12:03,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2024-11-14 03:12:03,803 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 593 transitions. [2024-11-14 03:12:03,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-14 03:12:03,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:03,806 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:12:03,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-14 03:12:04,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:12:04,010 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:12:04,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:04,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1840552665, now seen corresponding path program 1 times [2024-11-14 03:12:04,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:12:04,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362235583] [2024-11-14 03:12:04,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:04,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:12:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:04,201 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-14 03:12:04,201 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:12:04,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362235583] [2024-11-14 03:12:04,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362235583] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:12:04,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:12:04,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-14 03:12:04,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444000957] [2024-11-14 03:12:04,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:12:04,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-14 03:12:04,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:12:04,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-14 03:12:04,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:12:04,203 INFO L87 Difference]: Start difference. First operand 400 states and 593 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-14 03:12:04,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:04,525 INFO L93 Difference]: Finished difference Result 460 states and 661 transitions. [2024-11-14 03:12:04,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:12:04,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 86 [2024-11-14 03:12:04,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:04,528 INFO L225 Difference]: With dead ends: 460 [2024-11-14 03:12:04,529 INFO L226 Difference]: Without dead ends: 400 [2024-11-14 03:12:04,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-14 03:12:04,530 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 0 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 840 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:12:04,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 840 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:12:04,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-14 03:12:04,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-11-14 03:12:04,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 295 states have (on average 1.4610169491525424) internal successors, (431), 296 states have internal predecessors, (431), 81 states have call successors, (81), 23 states have call predecessors, (81), 23 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-14 03:12:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 592 transitions. [2024-11-14 03:12:04,735 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 592 transitions. Word has length 86 [2024-11-14 03:12:04,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:04,735 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 592 transitions. [2024-11-14 03:12:04,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (17), 1 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-14 03:12:04,736 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 592 transitions. [2024-11-14 03:12:04,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-14 03:12:04,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:04,739 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:12:04,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 03:12:04,739 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:12:04,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:04,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1422905698, now seen corresponding path program 1 times [2024-11-14 03:12:04,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:12:04,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446634249] [2024-11-14 03:12:04,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:04,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:12:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:05,511 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-14 03:12:05,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:12:05,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446634249] [2024-11-14 03:12:05,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446634249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:12:05,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 03:12:05,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-14 03:12:05,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712199228] [2024-11-14 03:12:05,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:12:05,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-14 03:12:05,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:12:05,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-14 03:12:05,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-14 03:12:05,514 INFO L87 Difference]: Start difference. First operand 400 states and 592 transitions. Second operand has 13 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 8 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-14 03:12:06,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:12:06,496 INFO L93 Difference]: Finished difference Result 550 states and 769 transitions. [2024-11-14 03:12:06,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:12:06,497 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 8 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 91 [2024-11-14 03:12:06,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:12:06,500 INFO L225 Difference]: With dead ends: 550 [2024-11-14 03:12:06,500 INFO L226 Difference]: Without dead ends: 482 [2024-11-14 03:12:06,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2024-11-14 03:12:06,501 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 207 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 1045 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 1073 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1045 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-14 03:12:06,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 1246 Invalid, 1073 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1045 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-14 03:12:06,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-14 03:12:06,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 474. [2024-11-14 03:12:06,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 340 states have (on average 1.4147058823529413) internal successors, (481), 340 states have internal predecessors, (481), 100 states have call successors, (100), 33 states have call predecessors, (100), 33 states have return successors, (100), 100 states have call predecessors, (100), 98 states have call successors, (100) [2024-11-14 03:12:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 681 transitions. [2024-11-14 03:12:06,642 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 681 transitions. Word has length 91 [2024-11-14 03:12:06,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:12:06,643 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 681 transitions. [2024-11-14 03:12:06,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 4.6) internal successors, (46), 11 states have internal predecessors, (46), 8 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2024-11-14 03:12:06,643 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 681 transitions. [2024-11-14 03:12:06,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-14 03:12:06,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:12:06,646 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:12:06,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 03:12:06,646 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:12:06,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:12:06,646 INFO L85 PathProgramCache]: Analyzing trace with hash -2134667691, now seen corresponding path program 1 times [2024-11-14 03:12:06,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:12:06,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854488276] [2024-11-14 03:12:06,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:06,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:12:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:06,890 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:12:06,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:12:06,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854488276] [2024-11-14 03:12:06,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854488276] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:12:06,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442847967] [2024-11-14 03:12:06,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:12:06,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:12:06,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:12:06,893 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:12:06,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:12:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:12:07,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:12:07,293 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:12:07,329 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:12:07,329 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:12:07,446 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-14 03:12:07,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442847967] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:12:07,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1298867414] [2024-11-14 03:12:07,449 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2024-11-14 03:12:07,450 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:12:07,450 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:12:07,450 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:12:07,450 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:12:37,503 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 03:12:37,604 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 433 for LOIs [2024-11-14 03:12:38,592 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:13:00,792 WARN L286 SmtUtils]: Spent 7.01s on a formula simplification. DAG size of input: 433 DAG size of output: 433 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:13:11,388 WARN L286 SmtUtils]: Spent 10.20s on a formula simplification. DAG size of input: 457 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-14 03:13:57,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1298867414] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 03:13:57,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:13:57,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [5, 5, 5] total 33 [2024-11-14 03:13:57,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507838854] [2024-11-14 03:13:57,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 03:13:57,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-14 03:13:57,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:13:57,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-14 03:13:57,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=952, Unknown=0, NotChecked=0, Total=1056 [2024-11-14 03:13:57,890 INFO L87 Difference]: Start difference. First operand 474 states and 681 transitions. Second operand has 28 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-14 03:14:20,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:14:20,202 INFO L93 Difference]: Finished difference Result 907 states and 1325 transitions. [2024-11-14 03:14:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-14 03:14:20,203 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) Word has length 104 [2024-11-14 03:14:20,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:14:20,207 INFO L225 Difference]: With dead ends: 907 [2024-11-14 03:14:20,207 INFO L226 Difference]: Without dead ends: 526 [2024-11-14 03:14:20,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 282 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 91.2s TimeCoverageRelationStatistics Valid=176, Invalid=1464, Unknown=0, NotChecked=0, Total=1640 [2024-11-14 03:14:20,210 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 146 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 2676 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 2816 SdHoareTripleChecker+Invalid, 2699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 2676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:14:20,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 2816 Invalid, 2699 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 2676 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2024-11-14 03:14:20,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2024-11-14 03:14:20,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 483. [2024-11-14 03:14:20,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 347 states have (on average 1.4063400576368876) internal successors, (488), 347 states have internal predecessors, (488), 101 states have call successors, (101), 34 states have call predecessors, (101), 34 states have return successors, (101), 101 states have call predecessors, (101), 99 states have call successors, (101) [2024-11-14 03:14:20,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 690 transitions. [2024-11-14 03:14:20,488 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 690 transitions. Word has length 104 [2024-11-14 03:14:20,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:14:20,488 INFO L471 AbstractCegarLoop]: Abstraction has 483 states and 690 transitions. [2024-11-14 03:14:20,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 18 states have internal predecessors, (51), 8 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 8 states have call predecessors, (19), 8 states have call successors, (19) [2024-11-14 03:14:20,489 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 690 transitions. [2024-11-14 03:14:20,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-14 03:14:20,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:14:20,491 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:14:20,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:14:20,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 03:14:20,692 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:14:20,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:14:20,692 INFO L85 PathProgramCache]: Analyzing trace with hash -112321121, now seen corresponding path program 1 times [2024-11-14 03:14:20,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:14:20,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518013326] [2024-11-14 03:14:20,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:14:20,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:14:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:14:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:14:20,935 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:14:20,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518013326] [2024-11-14 03:14:20,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518013326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:14:20,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259714674] [2024-11-14 03:14:20,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:14:20,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:14:20,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:14:20,937 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:14:20,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8565b370-bfab-4fa3-ad94-72d868554bc2/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:14:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:14:21,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:14:21,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:14:21,404 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:14:21,404 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:14:21,524 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-14 03:14:21,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259714674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:14:21,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [637810289] [2024-11-14 03:14:21,527 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2024-11-14 03:14:21,528 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:14:21,528 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:14:21,528 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:14:21,528 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:15:36,566 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2024-11-14 03:15:36,670 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 477 for LOIs [2024-11-14 03:15:37,495 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 486 for LOIs [2024-11-14 03:15:38,413 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 422 for LOIs [2024-11-14 03:15:38,690 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2024-11-14 03:15:38,789 INFO L180 IcfgInterpreter]: Interpretation finished