./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product39.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_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/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_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/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_32faa833-6c8e-4870-9dc5-4113e00aaf6d/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 d13022ac5777526b0e211d2bc2c4786b4fd03965aed567ff73b5cfbb8c2cd97a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:29:08,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:29:08,900 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:29:08,905 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:29:08,906 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:29:08,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:29:08,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:29:08,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:29:08,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:29:08,933 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:29:08,934 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:29:08,934 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:29:08,935 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:29:08,935 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:29:08,936 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:29:08,936 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:29:08,937 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:29:08,937 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:29:08,938 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:29:08,938 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:29:08,939 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:29:08,940 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:29:08,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:29:08,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:29:08,941 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:29:08,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:29:08,942 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:29:08,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:29:08,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:29:08,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:29:08,944 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:29:08,944 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:29:08,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:29:08,945 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:29:08,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:29:08,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:29:08,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:29:08,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:29:08,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:29:08,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:29:08,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:29:08,947 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:29:08,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:29:08,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:29:08,947 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:29:08,948 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:29:08,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:29:08,948 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_32faa833-6c8e-4870-9dc5-4113e00aaf6d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d13022ac5777526b0e211d2bc2c4786b4fd03965aed567ff73b5cfbb8c2cd97a [2023-12-02 13:29:09,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:29:09,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:29:09,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:29:09,189 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:29:09,190 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:29:09,191 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec11_product39.cil.c [2023-12-02 13:29:12,015 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:29:12,345 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:29:12,345 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c [2023-12-02 13:29:12,366 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/data/c62108c48/58dcd26ff8df4194afb7fd979aebc1ec/FLAG04650e0af [2023-12-02 13:29:12,379 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/data/c62108c48/58dcd26ff8df4194afb7fd979aebc1ec [2023-12-02 13:29:12,381 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:29:12,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:29:12,384 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:29:12,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:29:12,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:29:12,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:29:12" (1/1) ... [2023-12-02 13:29:12,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c29f98b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:12, skipping insertion in model container [2023-12-02 13:29:12,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:29:12" (1/1) ... [2023-12-02 13:29:12,466 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:29:12,780 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_32faa833-6c8e-4870-9dc5-4113e00aaf6d/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c[17959,17972] [2023-12-02 13:29:12,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:29:12,955 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:29:12,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-02 13:29:12,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [380] [2023-12-02 13:29:12,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [415] [2023-12-02 13:29:12,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [436] [2023-12-02 13:29:12,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [802] [2023-12-02 13:29:12,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [811] [2023-12-02 13:29:12,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1880] [2023-12-02 13:29:12,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1897] [2023-12-02 13:29:12,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2309] [2023-12-02 13:29:12,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2548] [2023-12-02 13:29:12,969 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2767] [2023-12-02 13:29:13,001 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_32faa833-6c8e-4870-9dc5-4113e00aaf6d/sv-benchmarks/c/product-lines/email_spec11_product39.cil.c[17959,17972] [2023-12-02 13:29:13,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:29:13,088 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:29:13,094 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:29:13,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13 WrapperNode [2023-12-02 13:29:13,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:29:13,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:29:13,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:29:13,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:29:13,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13" (1/1) ... [2023-12-02 13:29:13,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13" (1/1) ... [2023-12-02 13:29:13,170 INFO L138 Inliner]: procedures = 124, calls = 195, calls flagged for inlining = 47, calls inlined = 43, statements flattened = 840 [2023-12-02 13:29:13,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:29:13,171 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:29:13,171 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:29:13,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:29:13,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13" (1/1) ... [2023-12-02 13:29:13,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13" (1/1) ... [2023-12-02 13:29:13,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13" (1/1) ... [2023-12-02 13:29:13,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13" (1/1) ... [2023-12-02 13:29:13,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13" (1/1) ... [2023-12-02 13:29:13,217 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13" (1/1) ... [2023-12-02 13:29:13,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13" (1/1) ... [2023-12-02 13:29:13,228 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13" (1/1) ... [2023-12-02 13:29:13,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:29:13,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:29:13,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:29:13,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:29:13,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13" (1/1) ... [2023-12-02 13:29:13,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:29:13,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:29:13,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:29:13,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:29:13,349 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 13:29:13,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 13:29:13,350 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 13:29:13,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 13:29:13,350 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 13:29:13,350 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 13:29:13,350 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-02 13:29:13,350 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-02 13:29:13,350 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 13:29:13,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 13:29:13,351 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 13:29:13,351 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 13:29:13,351 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 13:29:13,351 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 13:29:13,351 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 13:29:13,351 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 13:29:13,351 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 13:29:13,352 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 13:29:13,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 13:29:13,352 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 13:29:13,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 13:29:13,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:29:13,352 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 13:29:13,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 13:29:13,353 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 13:29:13,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 13:29:13,353 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 13:29:13,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 13:29:13,353 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 13:29:13,353 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 13:29:13,353 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 13:29:13,353 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 13:29:13,353 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 13:29:13,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 13:29:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 13:29:13,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 13:29:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:29:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 13:29:13,354 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 13:29:13,354 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 13:29:13,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 13:29:13,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:29:13,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:29:13,519 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:29:13,522 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:29:14,214 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:29:14,696 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:29:14,696 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:29:14,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:29:14 BoogieIcfgContainer [2023-12-02 13:29:14,698 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:29:14,701 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:29:14,701 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:29:14,704 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:29:14,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:29:12" (1/3) ... [2023-12-02 13:29:14,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3e8f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:29:14, skipping insertion in model container [2023-12-02 13:29:14,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:29:13" (2/3) ... [2023-12-02 13:29:14,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3e8f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:29:14, skipping insertion in model container [2023-12-02 13:29:14,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:29:14" (3/3) ... [2023-12-02 13:29:14,707 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product39.cil.c [2023-12-02 13:29:14,729 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:29:14,729 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:29:14,782 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:29:14,788 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;@179f86ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:29:14,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:29:14,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 156 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 92 states have internal predecessors, (119), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-02 13:29:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 13:29:14,808 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:29:14,809 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:29:14,809 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:29:14,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:29:14,815 INFO L85 PathProgramCache]: Analyzing trace with hash -814013987, now seen corresponding path program 1 times [2023-12-02 13:29:14,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:29:14,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768090123] [2023-12-02 13:29:14,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:29:14,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:29:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:29:15,153 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:29:15,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:29:15,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768090123] [2023-12-02 13:29:15,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768090123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:29:15,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:29:15,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:29:15,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756158639] [2023-12-02 13:29:15,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:29:15,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:29:15,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:29:15,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:29:15,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:29:15,196 INFO L87 Difference]: Start difference. First operand has 156 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 92 states have internal predecessors, (119), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (46), 45 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 13:29:15,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:29:15,309 INFO L93 Difference]: Finished difference Result 220 states and 293 transitions. [2023-12-02 13:29:15,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:29:15,311 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 61 [2023-12-02 13:29:15,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:29:15,323 INFO L225 Difference]: With dead ends: 220 [2023-12-02 13:29:15,323 INFO L226 Difference]: Without dead ends: 153 [2023-12-02 13:29:15,328 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 13:29:15,331 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:29:15,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:29:15,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2023-12-02 13:29:15,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2023-12-02 13:29:15,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 89 states have internal predecessors, (113), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-02 13:29:15,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 204 transitions. [2023-12-02 13:29:15,390 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 204 transitions. Word has length 61 [2023-12-02 13:29:15,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:29:15,391 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 204 transitions. [2023-12-02 13:29:15,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 13:29:15,392 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 204 transitions. [2023-12-02 13:29:15,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 13:29:15,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:29:15,396 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:29:15,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:29:15,397 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:29:15,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:29:15,398 INFO L85 PathProgramCache]: Analyzing trace with hash 295149639, now seen corresponding path program 1 times [2023-12-02 13:29:15,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:29:15,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582313881] [2023-12-02 13:29:15,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:29:15,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:29:15,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:29:15,584 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:29:15,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:29:15,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582313881] [2023-12-02 13:29:15,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582313881] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:29:15,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:29:15,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:29:15,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448431828] [2023-12-02 13:29:15,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:29:15,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:29:15,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:29:15,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:29:15,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:29:15,589 INFO L87 Difference]: Start difference. First operand 153 states and 204 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 13:29:15,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:29:15,687 INFO L93 Difference]: Finished difference Result 216 states and 278 transitions. [2023-12-02 13:29:15,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:29:15,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 62 [2023-12-02 13:29:15,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:29:15,690 INFO L225 Difference]: With dead ends: 216 [2023-12-02 13:29:15,690 INFO L226 Difference]: Without dead ends: 155 [2023-12-02 13:29:15,692 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 13:29:15,693 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:29:15,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 351 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:29:15,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-12-02 13:29:15,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-12-02 13:29:15,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 89 states have (on average 1.2921348314606742) internal successors, (115), 91 states have internal predecessors, (115), 46 states have call successors, (46), 19 states have call predecessors, (46), 19 states have return successors, (45), 44 states have call predecessors, (45), 45 states have call successors, (45) [2023-12-02 13:29:15,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 206 transitions. [2023-12-02 13:29:15,715 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 206 transitions. Word has length 62 [2023-12-02 13:29:15,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:29:15,715 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 206 transitions. [2023-12-02 13:29:15,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 13:29:15,716 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 206 transitions. [2023-12-02 13:29:15,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 13:29:15,719 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:29:15,719 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, 1] [2023-12-02 13:29:15,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:29:15,720 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:29:15,720 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:29:15,720 INFO L85 PathProgramCache]: Analyzing trace with hash 472650899, now seen corresponding path program 1 times [2023-12-02 13:29:15,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:29:15,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282838368] [2023-12-02 13:29:15,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:29:15,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:29:15,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:29:15,850 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:29:15,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:29:15,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282838368] [2023-12-02 13:29:15,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282838368] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:29:15,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:29:15,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:29:15,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367795720] [2023-12-02 13:29:15,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:29:15,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:29:15,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:29:15,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:29:15,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:29:15,853 INFO L87 Difference]: Start difference. First operand 155 states and 206 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 13:29:15,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:29:15,954 INFO L93 Difference]: Finished difference Result 345 states and 479 transitions. [2023-12-02 13:29:15,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:29:15,955 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2023-12-02 13:29:15,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:29:15,957 INFO L225 Difference]: With dead ends: 345 [2023-12-02 13:29:15,958 INFO L226 Difference]: Without dead ends: 208 [2023-12-02 13:29:15,959 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 13:29:15,961 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 59 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:29:15,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 358 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:29:15,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-12-02 13:29:15,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 203. [2023-12-02 13:29:15,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 123 states have (on average 1.3821138211382114) internal successors, (170), 125 states have internal predecessors, (170), 60 states have call successors, (60), 19 states have call predecessors, (60), 19 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-02 13:29:15,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 289 transitions. [2023-12-02 13:29:15,986 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 289 transitions. Word has length 67 [2023-12-02 13:29:15,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:29:15,987 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 289 transitions. [2023-12-02 13:29:15,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 13:29:15,988 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 289 transitions. [2023-12-02 13:29:15,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 13:29:15,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:29:15,992 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, 1, 1] [2023-12-02 13:29:15,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:29:15,992 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:29:15,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:29:15,993 INFO L85 PathProgramCache]: Analyzing trace with hash -147120057, now seen corresponding path program 1 times [2023-12-02 13:29:15,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:29:15,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399424083] [2023-12-02 13:29:15,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:29:15,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:29:16,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:29:16,159 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:29:16,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:29:16,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399424083] [2023-12-02 13:29:16,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399424083] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:29:16,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391962757] [2023-12-02 13:29:16,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:29:16,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:29:16,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:29:16,164 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:29:16,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:29:16,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:29:16,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 903 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:29:16,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:29:16,566 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:29:16,567 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:29:16,628 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:29:16,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391962757] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:29:16,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [350080850] [2023-12-02 13:29:16,652 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2023-12-02 13:29:16,652 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:29:16,656 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:29:16,662 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:29:16,663 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:29:59,909 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-12-02 13:30:00,128 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 13:30:00,293 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:31:03,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [350080850] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:31:03,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:31:03,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 13:31:03,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106268740] [2023-12-02 13:31:03,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:31:03,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 13:31:03,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:31:03,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 13:31:03,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:31:03,620 INFO L87 Difference]: Start difference. First operand 203 states and 289 transitions. Second operand has 24 states, 16 states have (on average 2.1875) internal successors, (35), 15 states have internal predecessors, (35), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 13:31:17,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:31:17,206 INFO L93 Difference]: Finished difference Result 453 states and 678 transitions. [2023-12-02 13:31:17,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 13:31:17,207 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.1875) internal successors, (35), 15 states have internal predecessors, (35), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 68 [2023-12-02 13:31:17,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:31:17,211 INFO L225 Difference]: With dead ends: 453 [2023-12-02 13:31:17,211 INFO L226 Difference]: Without dead ends: 268 [2023-12-02 13:31:17,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 66.6s TimeCoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-12-02 13:31:17,213 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 85 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 2470 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 2677 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:31:17,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 2677 Invalid, 2480 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2470 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2023-12-02 13:31:17,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2023-12-02 13:31:17,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 226. [2023-12-02 13:31:17,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 145 states have (on average 1.4) internal successors, (203), 147 states have internal predecessors, (203), 60 states have call successors, (60), 20 states have call predecessors, (60), 20 states have return successors, (59), 58 states have call predecessors, (59), 59 states have call successors, (59) [2023-12-02 13:31:17,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 322 transitions. [2023-12-02 13:31:17,288 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 322 transitions. Word has length 68 [2023-12-02 13:31:17,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:31:17,289 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 322 transitions. [2023-12-02 13:31:17,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.1875) internal successors, (35), 15 states have internal predecessors, (35), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 13:31:17,289 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 322 transitions. [2023-12-02 13:31:17,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 13:31:17,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:31:17,291 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:31:17,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:31:17,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:31:17,495 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:31:17,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:31:17,495 INFO L85 PathProgramCache]: Analyzing trace with hash -693242498, now seen corresponding path program 1 times [2023-12-02 13:31:17,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:31:17,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149472742] [2023-12-02 13:31:17,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:17,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:31:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:17,577 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:31:17,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:31:17,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149472742] [2023-12-02 13:31:17,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149472742] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:31:17,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:31:17,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:31:17,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795060941] [2023-12-02 13:31:17,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:31:17,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:31:17,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:31:17,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:31:17,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:31:17,580 INFO L87 Difference]: Start difference. First operand 226 states and 322 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 13:31:17,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:31:17,786 INFO L93 Difference]: Finished difference Result 555 states and 824 transitions. [2023-12-02 13:31:17,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:31:17,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 73 [2023-12-02 13:31:17,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:31:17,790 INFO L225 Difference]: With dead ends: 555 [2023-12-02 13:31:17,790 INFO L226 Difference]: Without dead ends: 353 [2023-12-02 13:31:17,791 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 13:31:17,792 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 57 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:31:17,792 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 360 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:31:17,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-12-02 13:31:17,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 348. [2023-12-02 13:31:17,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 236 states have (on average 1.4533898305084745) internal successors, (343), 238 states have internal predecessors, (343), 91 states have call successors, (91), 20 states have call predecessors, (91), 20 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-02 13:31:17,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 524 transitions. [2023-12-02 13:31:17,896 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 524 transitions. Word has length 73 [2023-12-02 13:31:17,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:31:17,897 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 524 transitions. [2023-12-02 13:31:17,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 13:31:17,897 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 524 transitions. [2023-12-02 13:31:17,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 13:31:17,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:31:17,900 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:31:17,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:31:17,900 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:31:17,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:31:17,901 INFO L85 PathProgramCache]: Analyzing trace with hash 2081411189, now seen corresponding path program 1 times [2023-12-02 13:31:17,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:31:17,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820795493] [2023-12-02 13:31:17,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:17,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:31:17,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:18,050 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:31:18,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:31:18,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820795493] [2023-12-02 13:31:18,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820795493] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:31:18,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070265220] [2023-12-02 13:31:18,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:31:18,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:31:18,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:31:18,055 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:31:18,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:31:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:31:18,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:31:18,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:31:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:31:18,373 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:31:18,431 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:31:18,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070265220] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:31:18,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [990018019] [2023-12-02 13:31:18,435 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2023-12-02 13:31:18,435 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:31:18,436 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:31:18,436 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:31:18,437 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:32:12,506 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-12-02 13:32:12,741 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 461 for LOIs [2023-12-02 13:32:15,150 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:32:36,385 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification. DAG size of input: 461 DAG size of output: 462 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:32:45,851 WARN L293 SmtUtils]: Spent 9.30s on a formula simplification. DAG size of input: 491 DAG size of output: 486 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:33:47,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [990018019] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:33:47,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:33:47,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 13:33:47,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360049631] [2023-12-02 13:33:47,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:33:47,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:33:47,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:33:47,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:33:47,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=941, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:33:47,365 INFO L87 Difference]: Start difference. First operand 348 states and 524 transitions. Second operand has 28 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2023-12-02 13:34:01,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:34:01,961 INFO L93 Difference]: Finished difference Result 714 states and 1105 transitions. [2023-12-02 13:34:01,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 13:34:01,962 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) Word has length 74 [2023-12-02 13:34:01,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:34:01,964 INFO L225 Difference]: With dead ends: 714 [2023-12-02 13:34:01,964 INFO L226 Difference]: Without dead ends: 429 [2023-12-02 13:34:01,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 95.4s TimeCoverageRelationStatistics Valid=120, Invalid=1002, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 13:34:01,966 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 226 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 2282 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 2179 SdHoareTripleChecker+Invalid, 2291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:34:01,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 2179 Invalid, 2291 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2282 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-12-02 13:34:01,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2023-12-02 13:34:02,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 362. [2023-12-02 13:34:02,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 248 states have (on average 1.4516129032258065) internal successors, (360), 250 states have internal predecessors, (360), 92 states have call successors, (92), 21 states have call predecessors, (92), 21 states have return successors, (91), 90 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-02 13:34:02,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 543 transitions. [2023-12-02 13:34:02,082 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 543 transitions. Word has length 74 [2023-12-02 13:34:02,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:34:02,082 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 543 transitions. [2023-12-02 13:34:02,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 8 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 8 states have call predecessors, (13), 8 states have call successors, (13) [2023-12-02 13:34:02,082 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 543 transitions. [2023-12-02 13:34:02,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 13:34:02,084 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:34:02,084 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:34:02,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:34:02,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 13:34:02,285 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:34:02,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:34:02,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1785380055, now seen corresponding path program 1 times [2023-12-02 13:34:02,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:34:02,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931752368] [2023-12-02 13:34:02,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:34:02,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:34:02,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:34:02,447 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:34:02,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:34:02,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931752368] [2023-12-02 13:34:02,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931752368] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:34:02,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247955703] [2023-12-02 13:34:02,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:34:02,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:34:02,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:34:02,451 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:34:02,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:34:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:34:02,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:34:02,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:34:02,746 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:34:02,746 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:34:02,798 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:34:02,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247955703] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:34:02,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1004915546] [2023-12-02 13:34:02,802 INFO L159 IcfgInterpreter]: Started Sifa with 66 locations of interest [2023-12-02 13:34:02,803 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:34:02,803 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:34:02,804 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:34:02,804 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:35:49,329 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-12-02 13:35:49,551 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 528 for LOIs [2023-12-02 13:35:51,233 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 537 for LOIs [2023-12-02 13:35:52,950 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 452 for LOIs [2023-12-02 13:35:53,636 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 13:35:53,793 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:37:31,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1004915546] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:37:31,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:37:31,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 13:37:31,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276357662] [2023-12-02 13:37:31,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:37:31,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 13:37:31,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:37:31,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 13:37:31,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1291, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:37:31,489 INFO L87 Difference]: Start difference. First operand 362 states and 543 transitions. Second operand has 33 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2023-12-02 13:37:52,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:37:52,507 INFO L93 Difference]: Finished difference Result 739 states and 1140 transitions. [2023-12-02 13:37:52,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 13:37:52,508 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) Word has length 77 [2023-12-02 13:37:52,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:37:52,511 INFO L225 Difference]: With dead ends: 739 [2023-12-02 13:37:52,511 INFO L226 Difference]: Without dead ends: 454 [2023-12-02 13:37:52,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 100.8s TimeCoverageRelationStatistics Valid=120, Invalid=1362, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 13:37:52,514 INFO L413 NwaCegarLoop]: 157 mSDtfsCounter, 60 mSDsluCounter, 2683 mSDsCounter, 0 mSdLazyCounter, 3257 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 2840 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:37:52,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 2840 Invalid, 3267 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3257 Invalid, 0 Unknown, 0 Unchecked, 17.6s Time] [2023-12-02 13:37:52,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2023-12-02 13:37:52,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 398. [2023-12-02 13:37:52,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 278 states have (on average 1.4460431654676258) internal successors, (402), 280 states have internal predecessors, (402), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (94), 93 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-02 13:37:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 591 transitions. [2023-12-02 13:37:52,674 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 591 transitions. Word has length 77 [2023-12-02 13:37:52,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:37:52,674 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 591 transitions. [2023-12-02 13:37:52,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.0) internal successors, (38), 18 states have internal predecessors, (38), 10 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (15), 10 states have call predecessors, (15), 10 states have call successors, (15) [2023-12-02 13:37:52,674 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 591 transitions. [2023-12-02 13:37:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 13:37:52,676 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:37:52,676 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:37:52,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:37:52,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:37:52,877 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:37:52,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:37:52,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1794871761, now seen corresponding path program 1 times [2023-12-02 13:37:52,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:37:52,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832581101] [2023-12-02 13:37:52,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:52,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:37:52,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:37:52,992 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:37:52,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:37:52,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832581101] [2023-12-02 13:37:52,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832581101] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:37:52,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160446107] [2023-12-02 13:37:52,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:37:52,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:37:52,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:37:52,994 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:37:52,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:37:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:37:53,236 INFO L262 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:37:53,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:37:53,264 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:37:53,264 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:37:53,317 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:37:53,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160446107] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:37:53,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1465705834] [2023-12-02 13:37:53,320 INFO L159 IcfgInterpreter]: Started Sifa with 65 locations of interest [2023-12-02 13:37:53,320 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:37:53,321 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:37:53,321 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:37:53,321 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:38:45,339 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-12-02 13:38:45,563 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 13:38:45,722 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:40:15,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1465705834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:40:15,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:40:15,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 13:40:15,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948308838] [2023-12-02 13:40:15,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:40:15,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 13:40:15,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:40:15,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 13:40:15,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1178, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 13:40:15,112 INFO L87 Difference]: Start difference. First operand 398 states and 591 transitions. Second operand has 32 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 23 states have internal predecessors, (43), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 13:40:29,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:40:29,620 INFO L93 Difference]: Finished difference Result 753 states and 1155 transitions. [2023-12-02 13:40:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 13:40:29,621 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 23 states have internal predecessors, (43), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 76 [2023-12-02 13:40:29,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:40:29,623 INFO L225 Difference]: With dead ends: 753 [2023-12-02 13:40:29,623 INFO L226 Difference]: Without dead ends: 468 [2023-12-02 13:40:29,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 92.5s TimeCoverageRelationStatistics Valid=159, Invalid=1247, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:40:29,625 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 157 mSDsluCounter, 2176 mSDsCounter, 0 mSdLazyCounter, 2558 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 2331 SdHoareTripleChecker+Invalid, 2567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:40:29,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 2331 Invalid, 2567 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2558 Invalid, 0 Unknown, 0 Unchecked, 11.0s Time] [2023-12-02 13:40:29,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 468 states. [2023-12-02 13:40:29,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 468 to 418. [2023-12-02 13:40:29,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 298 states have (on average 1.4496644295302012) internal successors, (432), 300 states have internal predecessors, (432), 95 states have call successors, (95), 24 states have call predecessors, (95), 24 states have return successors, (94), 93 states have call predecessors, (94), 94 states have call successors, (94) [2023-12-02 13:40:29,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 621 transitions. [2023-12-02 13:40:29,803 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 621 transitions. Word has length 76 [2023-12-02 13:40:29,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:40:29,804 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 621 transitions. [2023-12-02 13:40:29,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 1.7916666666666667) internal successors, (43), 23 states have internal predecessors, (43), 7 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-12-02 13:40:29,804 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 621 transitions. [2023-12-02 13:40:29,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 13:40:29,805 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:40:29,806 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:40:29,811 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:40:30,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:40:30,006 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:40:30,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:40:30,006 INFO L85 PathProgramCache]: Analyzing trace with hash -270895746, now seen corresponding path program 1 times [2023-12-02 13:40:30,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:40:30,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136812684] [2023-12-02 13:40:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:40:30,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:40:30,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:40:30,166 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 13:40:30,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:40:30,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136812684] [2023-12-02 13:40:30,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136812684] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:40:30,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1488777303] [2023-12-02 13:40:30,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:40:30,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:40:30,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:40:30,167 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:40:30,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32faa833-6c8e-4870-9dc5-4113e00aaf6d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 13:40:30,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:40:30,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:40:30,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:40:30,478 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:40:30,479 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:40:30,536 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:40:30,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1488777303] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:40:30,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2144204989] [2023-12-02 13:40:30,539 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2023-12-02 13:40:30,539 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:40:30,540 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:40:30,540 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:40:30,540 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:41:16,922 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2023-12-02 13:41:17,166 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 463 for LOIs [2023-12-02 13:41:19,194 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 236 for LOIs [2023-12-02 13:41:22,871 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 224 for LOIs [2023-12-02 13:41:23,000 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 234 for LOIs [2023-12-02 13:41:24,717 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__AutoResponder with input of size 234 for LOIs [2023-12-02 13:41:30,159 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 227 for LOIs [2023-12-02 13:41:30,279 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 225 for LOIs [2023-12-02 13:41:30,404 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 243 for LOIs [2023-12-02 13:41:32,003 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 216 for LOIs [2023-12-02 13:41:32,193 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:41:52,926 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification. DAG size of input: 463 DAG size of output: 463 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:42:02,462 WARN L293 SmtUtils]: Spent 9.30s on a formula simplification. DAG size of input: 493 DAG size of output: 488 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:43:28,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2144204989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:43:28,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:43:28,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [6, 5, 5] total 65 [2023-12-02 13:43:28,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975458980] [2023-12-02 13:43:28,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:43:28,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2023-12-02 13:43:28,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:43:28,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2023-12-02 13:43:28,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=3957, Unknown=0, NotChecked=0, Total=4160 [2023-12-02 13:43:28,755 INFO L87 Difference]: Start difference. First operand 418 states and 621 transitions. Second operand has 57 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 33 states have internal predecessors, (39), 16 states have call successors, (16), 10 states have call predecessors, (16), 7 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13)