./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh --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 4373ae32f100aa418b32a7018bfdec5c3f7ae719a7f9b296410b14fba54a4baf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:36:41,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:36:41,349 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 19:36:41,355 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:36:41,356 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:36:41,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:36:41,383 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:36:41,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:36:41,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:36:41,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:36:41,385 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:36:41,386 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:36:41,386 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:36:41,387 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:36:41,387 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:36:41,388 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:36:41,388 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:36:41,389 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:36:41,389 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:36:41,390 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:36:41,390 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:36:41,397 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:36:41,398 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:36:41,398 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:36:41,399 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:36:41,399 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:36:41,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:36:41,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:36:41,400 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:36:41,401 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:36:41,401 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:36:41,401 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:36:41,402 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:36:41,402 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:36:41,402 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:36:41,402 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:36:41,403 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:36:41,403 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:36:41,403 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:36:41,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:36:41,404 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:36:41,404 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:36:41,404 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:36:41,404 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:36:41,405 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:36:41,405 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:36:41,405 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:36:41,405 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4373ae32f100aa418b32a7018bfdec5c3f7ae719a7f9b296410b14fba54a4baf [2023-12-02 19:36:41,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:36:41,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:36:41,680 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:36:41,681 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:36:41,682 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:36:41,683 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec4_product27.cil.c [2023-12-02 19:36:44,524 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:36:44,796 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:36:44,796 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/sv-benchmarks/c/product-lines/email_spec4_product27.cil.c [2023-12-02 19:36:44,817 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/data/8d6d09c06/213e0669873a4ac4ae255d5358fb2d9f/FLAG8d75d9322 [2023-12-02 19:36:44,830 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/data/8d6d09c06/213e0669873a4ac4ae255d5358fb2d9f [2023-12-02 19:36:44,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:36:44,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:36:44,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:36:44,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:36:44,841 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:36:44,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:36:44" (1/1) ... [2023-12-02 19:36:44,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@646926a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:44, skipping insertion in model container [2023-12-02 19:36:44,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:36:44" (1/1) ... [2023-12-02 19:36:44,912 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:36:45,054 WARN L240 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_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/sv-benchmarks/c/product-lines/email_spec4_product27.cil.c[1542,1555] [2023-12-02 19:36:45,441 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:36:45,456 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:36:45,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-12-02 19:36:45,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [57] [2023-12-02 19:36:45,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [75] [2023-12-02 19:36:45,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [308] [2023-12-02 19:36:45,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [357] [2023-12-02 19:36:45,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1437] [2023-12-02 19:36:45,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1849] [2023-12-02 19:36:45,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1948] [2023-12-02 19:36:45,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2314] [2023-12-02 19:36:45,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2619] [2023-12-02 19:36:45,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [2985] [2023-12-02 19:36:45,470 WARN L240 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_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/sv-benchmarks/c/product-lines/email_spec4_product27.cil.c[1542,1555] [2023-12-02 19:36:45,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:36:45,571 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:36:45,578 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:36:45,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45 WrapperNode [2023-12-02 19:36:45,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:36:45,579 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:36:45,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:36:45,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:36:45,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45" (1/1) ... [2023-12-02 19:36:45,611 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45" (1/1) ... [2023-12-02 19:36:45,663 INFO L138 Inliner]: procedures = 133, calls = 228, calls flagged for inlining = 64, calls inlined = 61, statements flattened = 1140 [2023-12-02 19:36:45,664 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:36:45,665 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:36:45,665 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:36:45,665 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:36:45,674 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45" (1/1) ... [2023-12-02 19:36:45,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45" (1/1) ... [2023-12-02 19:36:45,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45" (1/1) ... [2023-12-02 19:36:45,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45" (1/1) ... [2023-12-02 19:36:45,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45" (1/1) ... [2023-12-02 19:36:45,750 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45" (1/1) ... [2023-12-02 19:36:45,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45" (1/1) ... [2023-12-02 19:36:45,780 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45" (1/1) ... [2023-12-02 19:36:45,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:36:45,791 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:36:45,792 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:36:45,792 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:36:45,793 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45" (1/1) ... [2023-12-02 19:36:45,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:36:45,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:36:45,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:36:45,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:36:45,866 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 19:36:45,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 19:36:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 19:36:45,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 19:36:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 19:36:45,867 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 19:36:45,867 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 19:36:45,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 19:36:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-02 19:36:45,868 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-02 19:36:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 19:36:45,868 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 19:36:45,868 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 19:36:45,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 19:36:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 19:36:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 19:36:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 19:36:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 19:36:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 19:36:45,869 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 19:36:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 19:36:45,869 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 19:36:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 19:36:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-02 19:36:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-02 19:36:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 19:36:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 19:36:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:36:45,870 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 19:36:45,870 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 19:36:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 19:36:45,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 19:36:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 19:36:45,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 19:36:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 19:36:45,871 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 19:36:45,871 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 19:36:45,872 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 19:36:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 19:36:45,872 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 19:36:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 19:36:45,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 19:36:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 19:36:45,872 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 19:36:45,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:36:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 19:36:45,873 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 19:36:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 19:36:45,873 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 19:36:45,873 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:36:45,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:36:46,052 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:36:46,055 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:36:46,874 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:36:47,397 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:36:47,397 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:36:47,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:36:47 BoogieIcfgContainer [2023-12-02 19:36:47,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:36:47,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:36:47,401 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:36:47,403 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:36:47,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:36:44" (1/3) ... [2023-12-02 19:36:47,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1388ddf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:36:47, skipping insertion in model container [2023-12-02 19:36:47,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:36:45" (2/3) ... [2023-12-02 19:36:47,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1388ddf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:36:47, skipping insertion in model container [2023-12-02 19:36:47,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:36:47" (3/3) ... [2023-12-02 19:36:47,406 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product27.cil.c [2023-12-02 19:36:47,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:36:47,421 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:36:47,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:36:47,471 INFO L357 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, mHoare=true, 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;@61245e2b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:36:47,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:36:47,476 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 116 states have internal predecessors, (148), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 19:36:47,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 19:36:47,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:47,488 INFO L195 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] [2023-12-02 19:36:47,489 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:36:47,493 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:47,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1880477477, now seen corresponding path program 1 times [2023-12-02 19:36:47,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:47,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114253994] [2023-12-02 19:36:47,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:47,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:47,786 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:36:47,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:47,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114253994] [2023-12-02 19:36:47,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114253994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:47,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:47,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:36:47,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591128174] [2023-12-02 19:36:47,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:47,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 19:36:47,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:47,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 19:36:47,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:36:47,820 INFO L87 Difference]: Start difference. First operand has 198 states, 113 states have (on average 1.3097345132743363) internal successors, (148), 116 states have internal predecessors, (148), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (60), 59 states have call predecessors, (60), 60 states have call successors, (60) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 19:36:47,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:47,951 INFO L93 Difference]: Finished difference Result 304 states and 407 transitions. [2023-12-02 19:36:47,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 19:36:47,954 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2023-12-02 19:36:47,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:47,985 INFO L225 Difference]: With dead ends: 304 [2023-12-02 19:36:47,985 INFO L226 Difference]: Without dead ends: 195 [2023-12-02 19:36:47,990 INFO L412 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 [2023-12-02 19:36:47,994 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:47,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 224 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:36:48,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-12-02 19:36:48,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2023-12-02 19:36:48,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 111 states have (on average 1.2792792792792793) internal successors, (142), 113 states have internal predecessors, (142), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-02 19:36:48,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 261 transitions. [2023-12-02 19:36:48,049 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 261 transitions. Word has length 65 [2023-12-02 19:36:48,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:48,051 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 261 transitions. [2023-12-02 19:36:48,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 19:36:48,051 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 261 transitions. [2023-12-02 19:36:48,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 19:36:48,056 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:48,056 INFO L195 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] [2023-12-02 19:36:48,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:36:48,057 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:36:48,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:48,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1234011459, now seen corresponding path program 1 times [2023-12-02 19:36:48,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:48,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939953945] [2023-12-02 19:36:48,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:48,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:48,222 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:36:48,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:48,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939953945] [2023-12-02 19:36:48,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939953945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:48,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:48,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:36:48,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237989210] [2023-12-02 19:36:48,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:48,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:36:48,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:48,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:36:48,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:36:48,226 INFO L87 Difference]: Start difference. First operand 195 states and 261 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 19:36:48,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:48,347 INFO L93 Difference]: Finished difference Result 300 states and 392 transitions. [2023-12-02 19:36:48,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:36:48,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2023-12-02 19:36:48,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:48,351 INFO L225 Difference]: With dead ends: 300 [2023-12-02 19:36:48,352 INFO L226 Difference]: Without dead ends: 197 [2023-12-02 19:36:48,353 INFO L412 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 [2023-12-02 19:36:48,354 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 0 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:48,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 441 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:36:48,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-02 19:36:48,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2023-12-02 19:36:48,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 113 states have (on average 1.2743362831858407) internal successors, (144), 115 states have internal predecessors, (144), 60 states have call successors, (60), 23 states have call predecessors, (60), 23 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-02 19:36:48,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 263 transitions. [2023-12-02 19:36:48,379 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 263 transitions. Word has length 66 [2023-12-02 19:36:48,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:48,379 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 263 transitions. [2023-12-02 19:36:48,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 19:36:48,380 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 263 transitions. [2023-12-02 19:36:48,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 19:36:48,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:48,383 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:36:48,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:36:48,384 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:36:48,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:48,384 INFO L85 PathProgramCache]: Analyzing trace with hash 35871291, now seen corresponding path program 1 times [2023-12-02 19:36:48,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:48,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177680687] [2023-12-02 19:36:48,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:48,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:48,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:36:48,501 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:48,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177680687] [2023-12-02 19:36:48,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177680687] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:36:48,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:36:48,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:36:48,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51870706] [2023-12-02 19:36:48,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:36:48,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:36:48,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:36:48,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:36:48,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:36:48,504 INFO L87 Difference]: Start difference. First operand 197 states and 263 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 19:36:48,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:36:48,652 INFO L93 Difference]: Finished difference Result 429 states and 593 transitions. [2023-12-02 19:36:48,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:36:48,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 71 [2023-12-02 19:36:48,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:36:48,655 INFO L225 Difference]: With dead ends: 429 [2023-12-02 19:36:48,655 INFO L226 Difference]: Without dead ends: 250 [2023-12-02 19:36:48,657 INFO L412 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 [2023-12-02 19:36:48,658 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 59 mSDsluCounter, 215 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:36:48,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 446 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:36:48,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2023-12-02 19:36:48,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 245. [2023-12-02 19:36:48,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 147 states have (on average 1.3537414965986394) internal successors, (199), 149 states have internal predecessors, (199), 74 states have call successors, (74), 23 states have call predecessors, (74), 23 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-02 19:36:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 346 transitions. [2023-12-02 19:36:48,683 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 346 transitions. Word has length 71 [2023-12-02 19:36:48,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:36:48,683 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 346 transitions. [2023-12-02 19:36:48,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 19:36:48,684 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 346 transitions. [2023-12-02 19:36:48,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 19:36:48,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:36:48,686 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:36:48,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:36:48,687 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:36:48,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:36:48,687 INFO L85 PathProgramCache]: Analyzing trace with hash -490510098, now seen corresponding path program 1 times [2023-12-02 19:36:48,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:36:48,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679845771] [2023-12-02 19:36:48,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:48,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:36:48,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:48,855 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:36:48,855 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:36:48,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679845771] [2023-12-02 19:36:48,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679845771] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:36:48,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1153302041] [2023-12-02 19:36:48,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:36:48,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:36:48,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:36:48,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:36:48,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:36:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:36:49,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:36:49,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:36:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:36:49,236 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:36:49,300 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:36:49,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1153302041] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:36:49,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1503873862] [2023-12-02 19:36:49,320 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-12-02 19:36:49,320 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:36:49,323 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:36:49,328 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:36:49,329 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:37:46,692 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 19:37:46,861 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 19:37:47,094 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:38:41,427 WARN L293 SmtUtils]: Spent 8.75s on a formula simplification. DAG size of input: 500 DAG size of output: 500 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:38:50,615 WARN L293 SmtUtils]: Spent 8.90s on a formula simplification. DAG size of input: 501 DAG size of output: 500 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:39:11,506 WARN L293 SmtUtils]: Spent 20.48s on a formula simplification. DAG size of input: 513 DAG size of output: 502 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:39:32,617 WARN L293 SmtUtils]: Spent 20.62s on a formula simplification. DAG size of input: 511 DAG size of output: 500 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:39:36,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1503873862] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:39:36,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:39:36,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 19:39:36,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203750463] [2023-12-02 19:39:36,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:39:36,203 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 19:39:36,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:39:36,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 19:39:36,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 19:39:36,205 INFO L87 Difference]: Start difference. First operand 245 states and 346 transitions. Second operand has 24 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 19:39:52,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:39:52,063 INFO L93 Difference]: Finished difference Result 537 states and 792 transitions. [2023-12-02 19:39:52,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 19:39:52,064 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 72 [2023-12-02 19:39:52,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:39:52,068 INFO L225 Difference]: With dead ends: 537 [2023-12-02 19:39:52,068 INFO L226 Difference]: Without dead ends: 310 [2023-12-02 19:39:52,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 112.3s TimeCoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-12-02 19:39:52,071 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 115 mSDsluCounter, 3125 mSDsCounter, 0 mSdLazyCounter, 2710 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 3359 SdHoareTripleChecker+Invalid, 2720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:39:52,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 3359 Invalid, 2720 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2710 Invalid, 0 Unknown, 0 Unchecked, 12.4s Time] [2023-12-02 19:39:52,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2023-12-02 19:39:52,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 268. [2023-12-02 19:39:52,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 169 states have (on average 1.3727810650887573) internal successors, (232), 171 states have internal predecessors, (232), 74 states have call successors, (74), 24 states have call predecessors, (74), 24 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-02 19:39:52,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 379 transitions. [2023-12-02 19:39:52,153 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 379 transitions. Word has length 72 [2023-12-02 19:39:52,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:39:52,153 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 379 transitions. [2023-12-02 19:39:52,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 19:39:52,153 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 379 transitions. [2023-12-02 19:39:52,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 19:39:52,155 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:39:52,156 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:39:52,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:39:52,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:39:52,358 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:39:52,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:39:52,359 INFO L85 PathProgramCache]: Analyzing trace with hash 315954373, now seen corresponding path program 1 times [2023-12-02 19:39:52,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:39:52,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811126377] [2023-12-02 19:39:52,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:39:52,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:39:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:39:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 19:39:52,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:39:52,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811126377] [2023-12-02 19:39:52,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811126377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:39:52,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:39:52,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:39:52,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153832701] [2023-12-02 19:39:52,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:39:52,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:39:52,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:39:52,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:39:52,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:39:52,444 INFO L87 Difference]: Start difference. First operand 268 states and 379 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:39:52,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:39:52,687 INFO L93 Difference]: Finished difference Result 639 states and 938 transitions. [2023-12-02 19:39:52,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:39:52,687 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2023-12-02 19:39:52,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:39:52,691 INFO L225 Difference]: With dead ends: 639 [2023-12-02 19:39:52,691 INFO L226 Difference]: Without dead ends: 395 [2023-12-02 19:39:52,692 INFO L412 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 [2023-12-02 19:39:52,693 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 57 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:39:52,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 440 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:39:52,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2023-12-02 19:39:52,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 390. [2023-12-02 19:39:52,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 260 states have (on average 1.4307692307692308) internal successors, (372), 262 states have internal predecessors, (372), 105 states have call successors, (105), 24 states have call predecessors, (105), 24 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-02 19:39:52,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 581 transitions. [2023-12-02 19:39:52,842 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 581 transitions. Word has length 77 [2023-12-02 19:39:52,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:39:52,843 INFO L495 AbstractCegarLoop]: Abstraction has 390 states and 581 transitions. [2023-12-02 19:39:52,843 INFO L496 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, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:39:52,843 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 581 transitions. [2023-12-02 19:39:52,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:39:52,845 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:39:52,846 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:39:52,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 19:39:52,846 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:39:52,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:39:52,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1855939077, now seen corresponding path program 1 times [2023-12-02 19:39:52,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:39:52,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675093762] [2023-12-02 19:39:52,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:39:52,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:39:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:39:52,987 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 19:39:52,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:39:52,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675093762] [2023-12-02 19:39:52,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675093762] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:39:52,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916493462] [2023-12-02 19:39:52,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:39:52,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:39:52,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:39:52,991 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:39:52,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:39:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:39:53,296 INFO L262 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:39:53,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:39:53,326 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 19:39:53,326 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:39:53,384 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 19:39:53,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916493462] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:39:53,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1420055422] [2023-12-02 19:39:53,388 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2023-12-02 19:39:53,388 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:39:53,389 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:39:53,389 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:39:53,389 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:41:04,996 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 19:41:05,164 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 480 for LOIs [2023-12-02 19:41:07,304 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:41:27,940 WARN L293 SmtUtils]: Spent 6.16s on a formula simplification. DAG size of input: 480 DAG size of output: 480 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:41:37,179 WARN L293 SmtUtils]: Spent 9.08s on a formula simplification. DAG size of input: 510 DAG size of output: 506 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:42:15,786 WARN L293 SmtUtils]: Spent 9.17s on a formula simplification. DAG size of input: 503 DAG size of output: 503 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:42:25,213 WARN L293 SmtUtils]: Spent 9.11s on a formula simplification. DAG size of input: 504 DAG size of output: 503 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:42:46,499 WARN L293 SmtUtils]: Spent 20.85s on a formula simplification. DAG size of input: 516 DAG size of output: 505 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:43:07,494 WARN L293 SmtUtils]: Spent 20.53s on a formula simplification. DAG size of input: 514 DAG size of output: 503 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:43:25,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1420055422] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:43:25,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:43:25,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 19:43:25,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059701501] [2023-12-02 19:43:25,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:43:25,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 19:43:25,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:43:25,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 19:43:25,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 19:43:25,535 INFO L87 Difference]: Start difference. First operand 390 states and 581 transitions. Second operand has 28 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2023-12-02 19:43:39,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:43:39,179 INFO L93 Difference]: Finished difference Result 798 states and 1219 transitions. [2023-12-02 19:43:39,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 19:43:39,180 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 78 [2023-12-02 19:43:39,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:43:39,183 INFO L225 Difference]: With dead ends: 798 [2023-12-02 19:43:39,184 INFO L226 Difference]: Without dead ends: 471 [2023-12-02 19:43:39,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 138.2s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 19:43:39,185 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 126 mSDsluCounter, 3100 mSDsCounter, 0 mSdLazyCounter, 2642 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 3304 SdHoareTripleChecker+Invalid, 2650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:43:39,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 3304 Invalid, 2650 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2642 Invalid, 0 Unknown, 0 Unchecked, 13.4s Time] [2023-12-02 19:43:39,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-02 19:43:39,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 404. [2023-12-02 19:43:39,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 272 states have (on average 1.4301470588235294) internal successors, (389), 274 states have internal predecessors, (389), 106 states have call successors, (106), 25 states have call predecessors, (106), 25 states have return successors, (105), 104 states have call predecessors, (105), 105 states have call successors, (105) [2023-12-02 19:43:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 600 transitions. [2023-12-02 19:43:39,302 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 600 transitions. Word has length 78 [2023-12-02 19:43:39,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:43:39,303 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 600 transitions. [2023-12-02 19:43:39,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2023-12-02 19:43:39,303 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 600 transitions. [2023-12-02 19:43:39,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 19:43:39,306 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:43:39,306 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:43:39,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 19:43:39,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:43:39,513 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:43:39,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:43:39,514 INFO L85 PathProgramCache]: Analyzing trace with hash -796146310, now seen corresponding path program 1 times [2023-12-02 19:43:39,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:43:39,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925920816] [2023-12-02 19:43:39,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:43:39,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:43:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:43:39,648 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:43:39,649 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:43:39,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925920816] [2023-12-02 19:43:39,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925920816] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:43:39,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1759796659] [2023-12-02 19:43:39,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:43:39,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:43:39,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:43:39,650 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:43:39,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 19:43:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:43:39,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:43:39,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:43:39,985 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:43:39,985 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:43:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:43:40,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1759796659] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:43:40,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1623498514] [2023-12-02 19:43:40,047 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2023-12-02 19:43:40,047 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:43:40,048 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:43:40,048 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:43:40,048 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:45:18,324 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 19:45:18,489 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 539 for LOIs [2023-12-02 19:45:20,425 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 548 for LOIs [2023-12-02 19:45:22,276 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 471 for LOIs [2023-12-02 19:45:23,057 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 19:45:23,300 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:46:20,067 WARN L293 SmtUtils]: Spent 10.92s on a formula simplification. DAG size of input: 576 DAG size of output: 571 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:46:31,471 WARN L293 SmtUtils]: Spent 11.03s on a formula simplification. DAG size of input: 577 DAG size of output: 571 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:47:17,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1623498514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:47:17,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:47:17,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 19:47:17,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600701824] [2023-12-02 19:47:17,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:47:17,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 19:47:17,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:47:17,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 19:47:17,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1288, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 19:47:17,224 INFO L87 Difference]: Start difference. First operand 404 states and 600 transitions. Second operand has 33 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-12-02 19:47:43,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:47:43,545 INFO L93 Difference]: Finished difference Result 827 states and 1260 transitions. [2023-12-02 19:47:43,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 19:47:43,546 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 81 [2023-12-02 19:47:43,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:47:43,550 INFO L225 Difference]: With dead ends: 827 [2023-12-02 19:47:43,550 INFO L226 Difference]: Without dead ends: 500 [2023-12-02 19:47:43,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 117.2s TimeCoverageRelationStatistics Valid=122, Invalid=1360, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 19:47:43,552 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 92 mSDsluCounter, 3333 mSDsCounter, 0 mSdLazyCounter, 3905 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 3543 SdHoareTripleChecker+Invalid, 3918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:47:43,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 3543 Invalid, 3918 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 3905 Invalid, 0 Unknown, 0 Unchecked, 22.6s Time] [2023-12-02 19:47:43,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2023-12-02 19:47:43,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 440. [2023-12-02 19:47:43,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 302 states have (on average 1.4271523178807948) internal successors, (431), 304 states have internal predecessors, (431), 109 states have call successors, (109), 28 states have call predecessors, (109), 28 states have return successors, (108), 107 states have call predecessors, (108), 108 states have call successors, (108) [2023-12-02 19:47:43,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 648 transitions. [2023-12-02 19:47:43,740 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 648 transitions. Word has length 81 [2023-12-02 19:47:43,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:47:43,740 INFO L495 AbstractCegarLoop]: Abstraction has 440 states and 648 transitions. [2023-12-02 19:47:43,740 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-12-02 19:47:43,740 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 648 transitions. [2023-12-02 19:47:43,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 19:47:43,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:47:43,742 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:47:43,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 19:47:43,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:47:43,943 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:47:43,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:47:43,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1574521576, now seen corresponding path program 1 times [2023-12-02 19:47:43,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:47:43,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362754962] [2023-12-02 19:47:43,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:47:43,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:47:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:47:44,067 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:47:44,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:47:44,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362754962] [2023-12-02 19:47:44,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362754962] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:47:44,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378430785] [2023-12-02 19:47:44,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:47:44,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:47:44,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:47:44,069 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:47:44,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ce4c7ed-0ef4-44c7-ad5e-88190826325e/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 19:47:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:47:44,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 997 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:47:44,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:47:44,381 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:47:44,381 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:47:44,442 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 19:47:44,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378430785] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:47:44,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1131741390] [2023-12-02 19:47:44,446 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 19:47:44,446 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:47:44,447 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:47:44,447 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:47:44,447 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:48:57,910 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 19:48:58,074 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 19:48:58,294 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:49:52,060 WARN L293 SmtUtils]: Spent 9.33s on a formula simplification. DAG size of input: 508 DAG size of output: 508 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:50:01,367 WARN L293 SmtUtils]: Spent 9.01s on a formula simplification. DAG size of input: 509 DAG size of output: 508 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:50:22,901 WARN L293 SmtUtils]: Spent 21.13s on a formula simplification. DAG size of input: 521 DAG size of output: 510 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:50:45,044 WARN L293 SmtUtils]: Spent 21.68s on a formula simplification. DAG size of input: 519 DAG size of output: 508 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)