./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec1_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/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_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec1_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/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_e7334af5-f996-4983-b55f-9ab2e0eb2738/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 c4f282cd51b7c35fd32c34f82b9fbd91d93e4244798e2a2790fa24fbe3843942 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:52:00,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:52:00,160 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 19:52:00,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:52:00,167 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:52:00,193 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:52:00,194 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:52:00,195 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:52:00,196 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:52:00,196 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:52:00,197 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:52:00,197 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:52:00,198 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:52:00,198 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:52:00,199 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:52:00,199 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:52:00,200 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:52:00,200 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:52:00,201 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:52:00,201 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:52:00,202 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:52:00,202 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:52:00,203 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:52:00,204 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:52:00,204 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:52:00,204 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:52:00,205 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:52:00,205 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:52:00,205 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:52:00,206 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:52:00,206 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:52:00,206 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:52:00,207 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:52:00,207 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:52:00,207 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:52:00,207 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:52:00,208 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:52:00,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:52:00,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:52:00,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:52:00,209 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:52:00,209 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:52:00,209 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:52:00,209 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:52:00,210 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:52:00,210 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:52:00,210 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:52:00,210 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_e7334af5-f996-4983-b55f-9ab2e0eb2738/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4f282cd51b7c35fd32c34f82b9fbd91d93e4244798e2a2790fa24fbe3843942 [2023-12-02 19:52:00,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:52:00,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:52:00,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:52:00,462 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:52:00,463 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:52:00,464 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec1_product35.cil.c [2023-12-02 19:52:03,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:52:03,513 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:52:03,514 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/sv-benchmarks/c/product-lines/email_spec1_product35.cil.c [2023-12-02 19:52:03,537 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/data/595312cdc/1f2170fa5d814e918bdcdb9f1d669814/FLAG5c04773e1 [2023-12-02 19:52:03,552 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/data/595312cdc/1f2170fa5d814e918bdcdb9f1d669814 [2023-12-02 19:52:03,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:52:03,556 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:52:03,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:52:03,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:52:03,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:52:03,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:52:03" (1/1) ... [2023-12-02 19:52:03,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d16567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:03, skipping insertion in model container [2023-12-02 19:52:03,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:52:03" (1/1) ... [2023-12-02 19:52:03,635 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:52:04,138 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_e7334af5-f996-4983-b55f-9ab2e0eb2738/sv-benchmarks/c/product-lines/email_spec1_product35.cil.c[66161,66174] [2023-12-02 19:52:04,143 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:52:04,160 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:52:04,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-02 19:52:04,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [392] [2023-12-02 19:52:04,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"AddressBookEncrypt_spec.i","") [758] [2023-12-02 19:52:04,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [788] [2023-12-02 19:52:04,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1244] [2023-12-02 19:52:04,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1261] [2023-12-02 19:52:04,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2321] [2023-12-02 19:52:04,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2543] [2023-12-02 19:52:04,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2680] [2023-12-02 19:52:04,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2715] [2023-12-02 19:52:04,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3112] [2023-12-02 19:52:04,259 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_e7334af5-f996-4983-b55f-9ab2e0eb2738/sv-benchmarks/c/product-lines/email_spec1_product35.cil.c[66161,66174] [2023-12-02 19:52:04,259 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:52:04,289 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:52:04,297 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:52:04,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04 WrapperNode [2023-12-02 19:52:04,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:52:04,299 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:52:04,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:52:04,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:52:04,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04" (1/1) ... [2023-12-02 19:52:04,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04" (1/1) ... [2023-12-02 19:52:04,421 INFO L138 Inliner]: procedures = 137, calls = 247, calls flagged for inlining = 66, calls inlined = 63, statements flattened = 1176 [2023-12-02 19:52:04,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:52:04,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:52:04,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:52:04,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:52:04,431 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04" (1/1) ... [2023-12-02 19:52:04,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04" (1/1) ... [2023-12-02 19:52:04,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04" (1/1) ... [2023-12-02 19:52:04,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04" (1/1) ... [2023-12-02 19:52:04,473 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04" (1/1) ... [2023-12-02 19:52:04,486 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04" (1/1) ... [2023-12-02 19:52:04,493 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04" (1/1) ... [2023-12-02 19:52:04,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04" (1/1) ... [2023-12-02 19:52:04,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:52:04,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:52:04,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:52:04,514 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:52:04,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04" (1/1) ... [2023-12-02 19:52:04,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:52:04,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:52:04,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:52:04,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:52:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 19:52:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 19:52:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 19:52:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 19:52:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 19:52:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 19:52:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 19:52:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 19:52:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 19:52:04,597 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 19:52:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 19:52:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 19:52:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-02 19:52:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-02 19:52:04,598 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 19:52:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 19:52:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 19:52:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 19:52:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 19:52:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 19:52:04,599 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 19:52:04,599 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 19:52:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 19:52:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 19:52:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 19:52:04,600 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 19:52:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 19:52:04,600 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 19:52:04,601 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 19:52:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-02 19:52:04,601 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-02 19:52:04,601 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 19:52:04,601 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 19:52:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:52:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 19:52:04,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 19:52:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 19:52:04,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 19:52:04,602 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 19:52:04,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 19:52:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 19:52:04,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 19:52:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 19:52:04,603 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 19:52:04,603 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 19:52:04,604 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 19:52:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 19:52:04,604 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 19:52:04,604 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 19:52:04,604 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 19:52:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 19:52:04,605 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 19:52:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 19:52:04,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 19:52:04,605 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 19:52:04,605 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 19:52:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:52:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 19:52:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 19:52:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 19:52:04,606 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 19:52:04,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:52:04,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:52:04,818 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:52:04,821 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:52:05,675 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:52:06,267 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:52:06,267 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:52:06,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:52:06 BoogieIcfgContainer [2023-12-02 19:52:06,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:52:06,271 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:52:06,271 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:52:06,275 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:52:06,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:52:03" (1/3) ... [2023-12-02 19:52:06,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4ae8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:52:06, skipping insertion in model container [2023-12-02 19:52:06,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:52:04" (2/3) ... [2023-12-02 19:52:06,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4ae8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:52:06, skipping insertion in model container [2023-12-02 19:52:06,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:52:06" (3/3) ... [2023-12-02 19:52:06,278 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec1_product35.cil.c [2023-12-02 19:52:06,300 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:52:06,300 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:52:06,359 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:52:06,367 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;@42520abb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:52:06,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:52:06,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 242 states, 136 states have (on average 1.286764705882353) internal successors, (175), 141 states have internal predecessors, (175), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-02 19:52:06,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 19:52:06,388 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:52:06,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:52:06,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:52:06,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:52:06,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1775854768, now seen corresponding path program 1 times [2023-12-02 19:52:06,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:52:06,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098248049] [2023-12-02 19:52:06,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:52:06,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:52:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:52:06,746 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 19:52:06,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:52:06,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098248049] [2023-12-02 19:52:06,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098248049] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:52:06,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:52:06,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:52:06,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118110662] [2023-12-02 19:52:06,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:52:06,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 19:52:06,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:52:06,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 19:52:06,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:52:06,789 INFO L87 Difference]: Start difference. First operand has 242 states, 136 states have (on average 1.286764705882353) internal successors, (175), 141 states have internal predecessors, (175), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (75), 74 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:52:07,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:52:07,000 INFO L93 Difference]: Finished difference Result 392 states and 521 transitions. [2023-12-02 19:52:07,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 19:52:07,003 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 71 [2023-12-02 19:52:07,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:52:07,017 INFO L225 Difference]: With dead ends: 392 [2023-12-02 19:52:07,017 INFO L226 Difference]: Without dead ends: 239 [2023-12-02 19:52:07,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:52:07,027 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:52:07,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:52:07,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-12-02 19:52:07,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2023-12-02 19:52:07,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 134 states have (on average 1.2611940298507462) internal successors, (169), 138 states have internal predecessors, (169), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-02 19:52:07,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 318 transitions. [2023-12-02 19:52:07,099 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 318 transitions. Word has length 71 [2023-12-02 19:52:07,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:52:07,101 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 318 transitions. [2023-12-02 19:52:07,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:52:07,101 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 318 transitions. [2023-12-02 19:52:07,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 19:52:07,106 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:52:07,107 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:52:07,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:52:07,107 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:52:07,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:52:07,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1229669791, now seen corresponding path program 1 times [2023-12-02 19:52:07,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:52:07,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590858801] [2023-12-02 19:52:07,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:52:07,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:52:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:52:07,331 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 19:52:07,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:52:07,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590858801] [2023-12-02 19:52:07,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590858801] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:52:07,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:52:07,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:52:07,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115593282] [2023-12-02 19:52:07,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:52:07,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:52:07,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:52:07,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:52:07,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:52:07,337 INFO L87 Difference]: Start difference. First operand 239 states and 318 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:52:07,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:52:07,484 INFO L93 Difference]: Finished difference Result 388 states and 506 transitions. [2023-12-02 19:52:07,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:52:07,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 72 [2023-12-02 19:52:07,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:52:07,489 INFO L225 Difference]: With dead ends: 388 [2023-12-02 19:52:07,489 INFO L226 Difference]: Without dead ends: 241 [2023-12-02 19:52:07,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:52:07,492 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 0 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:52:07,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 543 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:52:07,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-12-02 19:52:07,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2023-12-02 19:52:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 136 states have (on average 1.2573529411764706) internal successors, (171), 140 states have internal predecessors, (171), 75 states have call successors, (75), 29 states have call predecessors, (75), 29 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2023-12-02 19:52:07,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 320 transitions. [2023-12-02 19:52:07,519 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 320 transitions. Word has length 72 [2023-12-02 19:52:07,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:52:07,519 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 320 transitions. [2023-12-02 19:52:07,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:52:07,520 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 320 transitions. [2023-12-02 19:52:07,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 19:52:07,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:52:07,524 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 19:52:07,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:52:07,525 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:52:07,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:52:07,525 INFO L85 PathProgramCache]: Analyzing trace with hash -291913063, now seen corresponding path program 1 times [2023-12-02 19:52:07,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:52:07,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125753541] [2023-12-02 19:52:07,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:52:07,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:52:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:52:07,656 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 19:52:07,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:52:07,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125753541] [2023-12-02 19:52:07,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125753541] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:52:07,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:52:07,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:52:07,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357897269] [2023-12-02 19:52:07,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:52:07,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:52:07,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:52:07,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:52:07,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:52:07,659 INFO L87 Difference]: Start difference. First operand 241 states and 320 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:52:07,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:52:07,827 INFO L93 Difference]: Finished difference Result 517 states and 707 transitions. [2023-12-02 19:52:07,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:52:07,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2023-12-02 19:52:07,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:52:07,831 INFO L225 Difference]: With dead ends: 517 [2023-12-02 19:52:07,831 INFO L226 Difference]: Without dead ends: 294 [2023-12-02 19:52:07,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:52:07,834 INFO L413 NwaCegarLoop]: 285 mSDtfsCounter, 59 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:52:07,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 550 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:52:07,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-12-02 19:52:07,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 289. [2023-12-02 19:52:07,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 170 states have (on average 1.3294117647058823) internal successors, (226), 174 states have internal predecessors, (226), 89 states have call successors, (89), 29 states have call predecessors, (89), 29 states have return successors, (88), 87 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-02 19:52:07,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 403 transitions. [2023-12-02 19:52:07,864 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 403 transitions. Word has length 77 [2023-12-02 19:52:07,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:52:07,864 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 403 transitions. [2023-12-02 19:52:07,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 19:52:07,865 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 403 transitions. [2023-12-02 19:52:07,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 19:52:07,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:52:07,868 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, 1] [2023-12-02 19:52:07,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:52:07,868 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:52:07,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:52:07,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1518227052, now seen corresponding path program 1 times [2023-12-02 19:52:07,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:52:07,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917688415] [2023-12-02 19:52:07,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:52:07,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:52:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:52:08,059 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 19:52:08,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:52:08,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917688415] [2023-12-02 19:52:08,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917688415] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:52:08,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [788390462] [2023-12-02 19:52:08,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:52:08,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:52:08,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:52:08,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:52:08,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:52:08,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:52:08,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:52:08,463 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:52:08,524 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 19:52:08,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:52:08,599 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 19:52:08,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [788390462] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:52:08,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1833688806] [2023-12-02 19:52:08,624 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 19:52:08,624 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:52:08,628 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:52:08,634 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:52:08,634 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:52:57,990 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 19:52:58,239 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 19:52:58,423 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:53:57,590 WARN L293 SmtUtils]: Spent 9.68s on a formula simplification. DAG size of input: 513 DAG size of output: 513 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:54:13,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1833688806] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:54:13,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:54:13,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 19:54:13,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871595431] [2023-12-02 19:54:13,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:54:13,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 19:54:13,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:54:13,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 19:54:13,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2023-12-02 19:54:13,290 INFO L87 Difference]: Start difference. First operand 289 states and 403 transitions. Second operand has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 19:54:30,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:54:30,864 INFO L93 Difference]: Finished difference Result 625 states and 906 transitions. [2023-12-02 19:54:30,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 19:54:30,866 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 78 [2023-12-02 19:54:30,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:54:30,869 INFO L225 Difference]: With dead ends: 625 [2023-12-02 19:54:30,870 INFO L226 Difference]: Without dead ends: 354 [2023-12-02 19:54:30,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 78.4s TimeCoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-12-02 19:54:30,873 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 87 mSDsluCounter, 3728 mSDsCounter, 0 mSdLazyCounter, 2893 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 4016 SdHoareTripleChecker+Invalid, 2903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:54:30,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 4016 Invalid, 2903 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2893 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2023-12-02 19:54:30,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2023-12-02 19:54:30,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 312. [2023-12-02 19:54:30,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 192 states have (on average 1.3489583333333333) internal successors, (259), 196 states have internal predecessors, (259), 89 states have call successors, (89), 30 states have call predecessors, (89), 30 states have return successors, (88), 87 states have call predecessors, (88), 88 states have call successors, (88) [2023-12-02 19:54:30,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 436 transitions. [2023-12-02 19:54:30,960 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 436 transitions. Word has length 78 [2023-12-02 19:54:30,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:54:30,960 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 436 transitions. [2023-12-02 19:54:30,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.5625) internal successors, (41), 15 states have internal predecessors, (41), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 19:54:30,961 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 436 transitions. [2023-12-02 19:54:30,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 19:54:30,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:54:30,964 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:54:30,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:54:31,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:54:31,165 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:54:31,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:54:31,166 INFO L85 PathProgramCache]: Analyzing trace with hash 866666810, now seen corresponding path program 1 times [2023-12-02 19:54:31,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:54:31,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438724839] [2023-12-02 19:54:31,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:54:31,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:54:31,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:54:31,270 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 19:54:31,271 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:54:31,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438724839] [2023-12-02 19:54:31,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438724839] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:54:31,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:54:31,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:54:31,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282128271] [2023-12-02 19:54:31,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:54:31,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:54:31,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:54:31,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:54:31,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:54:31,274 INFO L87 Difference]: Start difference. First operand 312 states and 436 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 19:54:31,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:54:31,517 INFO L93 Difference]: Finished difference Result 727 states and 1052 transitions. [2023-12-02 19:54:31,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:54:31,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 83 [2023-12-02 19:54:31,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:54:31,521 INFO L225 Difference]: With dead ends: 727 [2023-12-02 19:54:31,521 INFO L226 Difference]: Without dead ends: 439 [2023-12-02 19:54:31,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:54:31,523 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 57 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:54:31,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 553 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:54:31,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-02 19:54:31,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 434. [2023-12-02 19:54:31,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 283 states have (on average 1.4098939929328622) internal successors, (399), 287 states have internal predecessors, (399), 120 states have call successors, (120), 30 states have call predecessors, (120), 30 states have return successors, (119), 118 states have call predecessors, (119), 119 states have call successors, (119) [2023-12-02 19:54:31,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 638 transitions. [2023-12-02 19:54:31,676 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 638 transitions. Word has length 83 [2023-12-02 19:54:31,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:54:31,676 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 638 transitions. [2023-12-02 19:54:31,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 19:54:31,676 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 638 transitions. [2023-12-02 19:54:31,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 19:54:31,679 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:54:31,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:54:31,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 19:54:31,680 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:54:31,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:54:31,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1752439120, now seen corresponding path program 1 times [2023-12-02 19:54:31,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:54:31,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042240370] [2023-12-02 19:54:31,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:54:31,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:54:31,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:54:31,820 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 19:54:31,820 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:54:31,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042240370] [2023-12-02 19:54:31,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042240370] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:54:31,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850434360] [2023-12-02 19:54:31,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:54:31,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:54:31,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:54:31,822 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:54:31,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:54:32,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:54:32,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 1100 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:54:32,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:54:32,161 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 19:54:32,161 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:54:32,217 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 19:54:32,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1850434360] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:54:32,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1338102477] [2023-12-02 19:54:32,221 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2023-12-02 19:54:32,222 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:54:32,222 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:54:32,222 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:54:32,223 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:55:27,600 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 19:55:27,829 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 493 for LOIs [2023-12-02 19:55:30,082 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:55:52,228 WARN L293 SmtUtils]: Spent 6.45s on a formula simplification. DAG size of input: 493 DAG size of output: 493 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:56:02,113 WARN L293 SmtUtils]: Spent 9.70s on a formula simplification. DAG size of input: 523 DAG size of output: 519 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:56:44,236 WARN L293 SmtUtils]: Spent 10.38s on a formula simplification. DAG size of input: 516 DAG size of output: 516 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:57:00,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1338102477] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:57:00,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:57:00,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 19:57:00,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303769371] [2023-12-02 19:57:00,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:57:00,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 19:57:00,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:57:00,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 19:57:00,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=932, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 19:57:00,438 INFO L87 Difference]: Start difference. First operand 434 states and 638 transitions. Second operand has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 19:57:25,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:57:25,224 INFO L93 Difference]: Finished difference Result 890 states and 1337 transitions. [2023-12-02 19:57:25,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2023-12-02 19:57:25,225 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) Word has length 84 [2023-12-02 19:57:25,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:57:25,228 INFO L225 Difference]: With dead ends: 890 [2023-12-02 19:57:25,229 INFO L226 Difference]: Without dead ends: 519 [2023-12-02 19:57:25,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 98.2s TimeCoverageRelationStatistics Valid=140, Invalid=1050, Unknown=0, NotChecked=0, Total=1190 [2023-12-02 19:57:25,231 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 155 mSDsluCounter, 3400 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 3661 SdHoareTripleChecker+Invalid, 3094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:57:25,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 3661 Invalid, 3094 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 3075 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2023-12-02 19:57:25,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states. [2023-12-02 19:57:25,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 448. [2023-12-02 19:57:25,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 295 states have (on average 1.4101694915254237) internal successors, (416), 299 states have internal predecessors, (416), 121 states have call successors, (121), 31 states have call predecessors, (121), 31 states have return successors, (120), 119 states have call predecessors, (120), 120 states have call successors, (120) [2023-12-02 19:57:25,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 657 transitions. [2023-12-02 19:57:25,366 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 657 transitions. Word has length 84 [2023-12-02 19:57:25,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:57:25,366 INFO L495 AbstractCegarLoop]: Abstraction has 448 states and 657 transitions. [2023-12-02 19:57:25,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 8 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (15), 8 states have call predecessors, (15), 8 states have call successors, (15) [2023-12-02 19:57:25,367 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 657 transitions. [2023-12-02 19:57:25,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 19:57:25,369 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:57:25,369 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:57:25,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 19:57:25,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:57:25,570 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:57:25,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:57:25,570 INFO L85 PathProgramCache]: Analyzing trace with hash -2012809136, now seen corresponding path program 1 times [2023-12-02 19:57:25,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:57:25,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064958975] [2023-12-02 19:57:25,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:57:25,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:57:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:57:25,740 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 19:57:25,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:57:25,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064958975] [2023-12-02 19:57:25,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064958975] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:57:25,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905949102] [2023-12-02 19:57:25,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:57:25,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:57:25,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:57:25,742 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:57:25,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 19:57:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:57:26,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 1178 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:57:26,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:57:26,106 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 19:57:26,107 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:57:26,166 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 19:57:26,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905949102] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:57:26,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [657146041] [2023-12-02 19:57:26,170 INFO L159 IcfgInterpreter]: Started Sifa with 76 locations of interest [2023-12-02 19:57:26,171 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:57:26,171 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:57:26,172 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:57:26,172 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:58:52,167 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 19:58:52,394 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 552 for LOIs [2023-12-02 19:58:54,299 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 306 for LOIs [2023-12-02 19:58:54,744 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 221 for LOIs [2023-12-02 19:58:54,934 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 19:58:55,106 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:59:57,636 WARN L293 SmtUtils]: Spent 12.40s on a formula simplification. DAG size of input: 589 DAG size of output: 584 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 20:00:29,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [657146041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:00:29,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:00:29,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 20:00:29,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539550906] [2023-12-02 20:00:29,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:00:29,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 20:00:29,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:00:29,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 20:00:29,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 20:00:29,844 INFO L87 Difference]: Start difference. First operand 448 states and 657 transitions. Second operand has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 20:01:03,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:01:03,511 INFO L93 Difference]: Finished difference Result 919 states and 1380 transitions. [2023-12-02 20:01:03,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-02 20:01:03,512 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) Word has length 87 [2023-12-02 20:01:03,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:01:03,516 INFO L225 Difference]: With dead ends: 919 [2023-12-02 20:01:03,516 INFO L226 Difference]: Without dead ends: 548 [2023-12-02 20:01:03,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 102.9s TimeCoverageRelationStatistics Valid=136, Invalid=1424, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 20:01:03,519 INFO L413 NwaCegarLoop]: 262 mSDtfsCounter, 96 mSDsluCounter, 4067 mSDsCounter, 0 mSdLazyCounter, 4447 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 4329 SdHoareTripleChecker+Invalid, 4459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 4447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:01:03,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 4329 Invalid, 4459 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 4447 Invalid, 0 Unknown, 0 Unchecked, 25.0s Time] [2023-12-02 20:01:03,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-12-02 20:01:03,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 484. [2023-12-02 20:01:03,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 325 states have (on average 1.4092307692307693) internal successors, (458), 329 states have internal predecessors, (458), 124 states have call successors, (124), 34 states have call predecessors, (124), 34 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123) [2023-12-02 20:01:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 705 transitions. [2023-12-02 20:01:03,733 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 705 transitions. Word has length 87 [2023-12-02 20:01:03,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:01:03,733 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 705 transitions. [2023-12-02 20:01:03,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.3157894736842106) internal successors, (44), 18 states have internal predecessors, (44), 10 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (17), 10 states have call predecessors, (17), 10 states have call successors, (17) [2023-12-02 20:01:03,734 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 705 transitions. [2023-12-02 20:01:03,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 20:01:03,736 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:01:03,737 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:01:03,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 20:01:03,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:01:03,945 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 20:01:03,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:01:03,945 INFO L85 PathProgramCache]: Analyzing trace with hash 574074570, now seen corresponding path program 1 times [2023-12-02 20:01:03,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:01:03,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20898954] [2023-12-02 20:01:03,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:01:03,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:01:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:01:04,091 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 20:01:04,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:01:04,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20898954] [2023-12-02 20:01:04,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20898954] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:01:04,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659634643] [2023-12-02 20:01:04,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:01:04,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:01:04,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:01:04,093 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:01:04,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 20:01:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:01:04,355 INFO L262 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 20:01:04,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:01:04,382 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 20:01:04,383 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:01:04,443 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 20:01:04,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659634643] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:01:04,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1243582795] [2023-12-02 20:01:04,447 INFO L159 IcfgInterpreter]: Started Sifa with 75 locations of interest [2023-12-02 20:01:04,447 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:01:04,447 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:01:04,447 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:01:04,448 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:02:09,801 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 20:02:10,026 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 20:02:10,198 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:03:12,235 WARN L293 SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 521 DAG size of output: 521 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 20:03:44,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1243582795] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 20:03:44,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 20:03:44,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 20:03:44,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256985860] [2023-12-02 20:03:44,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 20:03:44,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 20:03:44,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 20:03:44,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 20:03:44,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1154, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 20:03:44,154 INFO L87 Difference]: Start difference. First operand 484 states and 705 transitions. Second operand has 32 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 20:04:06,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 20:04:06,869 INFO L93 Difference]: Finished difference Result 925 states and 1383 transitions. [2023-12-02 20:04:06,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 20:04:06,870 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 86 [2023-12-02 20:04:06,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 20:04:06,873 INFO L225 Difference]: With dead ends: 925 [2023-12-02 20:04:06,873 INFO L226 Difference]: Without dead ends: 554 [2023-12-02 20:04:06,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 102.1s TimeCoverageRelationStatistics Valid=197, Invalid=1285, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 20:04:06,876 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 92 mSDsluCounter, 3899 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 4149 SdHoareTripleChecker+Invalid, 3061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-12-02 20:04:06,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 4149 Invalid, 3061 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 3049 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2023-12-02 20:04:06,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2023-12-02 20:04:07,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 504. [2023-12-02 20:04:07,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 345 states have (on average 1.4144927536231884) internal successors, (488), 349 states have internal predecessors, (488), 124 states have call successors, (124), 34 states have call predecessors, (124), 34 states have return successors, (123), 122 states have call predecessors, (123), 123 states have call successors, (123) [2023-12-02 20:04:07,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 735 transitions. [2023-12-02 20:04:07,147 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 735 transitions. Word has length 86 [2023-12-02 20:04:07,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 20:04:07,147 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 735 transitions. [2023-12-02 20:04:07,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 2.0416666666666665) internal successors, (49), 23 states have internal predecessors, (49), 7 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 20:04:07,147 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 735 transitions. [2023-12-02 20:04:07,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 20:04:07,150 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 20:04:07,150 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 20:04:07,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 20:04:07,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:04:07,352 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__AutoResponderErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 20:04:07,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 20:04:07,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1870901169, now seen corresponding path program 1 times [2023-12-02 20:04:07,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 20:04:07,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912533763] [2023-12-02 20:04:07,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:04:07,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 20:04:07,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:04:07,537 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 20:04:07,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 20:04:07,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912533763] [2023-12-02 20:04:07,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912533763] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 20:04:07,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706079195] [2023-12-02 20:04:07,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 20:04:07,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 20:04:07,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 20:04:07,539 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 20:04:07,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7334af5-f996-4983-b55f-9ab2e0eb2738/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 20:04:07,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 20:04:07,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 20:04:07,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 20:04:07,854 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 20:04:07,854 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 20:04:07,911 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 20:04:07,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706079195] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 20:04:07,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [264056069] [2023-12-02 20:04:07,915 INFO L159 IcfgInterpreter]: Started Sifa with 71 locations of interest [2023-12-02 20:04:07,915 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 20:04:07,915 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 20:04:07,916 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 20:04:07,916 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 20:05:11,962 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 20:05:12,196 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 495 for LOIs [2023-12-02 20:05:14,446 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 20:05:36,766 WARN L293 SmtUtils]: Spent 6.81s on a formula simplification. DAG size of input: 495 DAG size of output: 495 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 20:05:46,729 WARN L293 SmtUtils]: Spent 9.76s on a formula simplification. DAG size of input: 525 DAG size of output: 521 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)