./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product08.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/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_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product08.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/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_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/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 25f377b9a54c9ee2ed75c64ae9c58ce8e9d7938b6493e908dfb7e7f7a3cef80e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:21:29,318 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:21:29,380 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 16:21:29,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:21:29,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:21:29,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:21:29,408 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:21:29,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:21:29,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:21:29,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:21:29,410 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:21:29,411 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:21:29,411 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:21:29,412 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:21:29,412 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:21:29,413 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:21:29,413 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:21:29,414 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:21:29,414 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:21:29,415 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:21:29,416 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:21:29,419 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:21:29,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:21:29,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:21:29,420 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 16:21:29,420 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:21:29,421 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 16:21:29,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:21:29,421 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:21:29,421 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:21:29,422 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:21:29,422 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 16:21:29,422 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:21:29,423 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:21:29,423 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:21:29,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:21:29,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:21:29,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:21:29,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:21:29,424 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:21:29,424 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:21:29,424 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:21:29,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:21:29,425 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:21:29,425 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:21:29,425 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:21:29,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:21:29,425 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_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25f377b9a54c9ee2ed75c64ae9c58ce8e9d7938b6493e908dfb7e7f7a3cef80e [2023-12-02 16:21:29,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:21:29,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:21:29,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:21:29,654 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:21:29,654 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:21:29,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec11_product08.cil.c [2023-12-02 16:21:32,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:21:32,707 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:21:32,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/sv-benchmarks/c/product-lines/email_spec11_product08.cil.c [2023-12-02 16:21:32,728 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/data/ce6f5107e/85001cde8019441d8ed23f8f2efb8f2f/FLAG2124e88e1 [2023-12-02 16:21:32,742 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/data/ce6f5107e/85001cde8019441d8ed23f8f2efb8f2f [2023-12-02 16:21:32,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:21:32,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:21:32,747 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:21:32,748 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:21:32,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:21:32,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:21:32" (1/1) ... [2023-12-02 16:21:32,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c91d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:32, skipping insertion in model container [2023-12-02 16:21:32,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:21:32" (1/1) ... [2023-12-02 16:21:32,833 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:21:33,341 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_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/sv-benchmarks/c/product-lines/email_spec11_product08.cil.c[54831,54844] [2023-12-02 16:21:33,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:21:33,365 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:21:33,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-02 16:21:33,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [363] [2023-12-02 16:21:33,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1435] [2023-12-02 16:21:33,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1634] [2023-12-02 16:21:33,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1700] [2023-12-02 16:21:33,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2066] [2023-12-02 16:21:33,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2473] [2023-12-02 16:21:33,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2508] [2023-12-02 16:21:33,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2525] [2023-12-02 16:21:33,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [2534] [2023-12-02 16:21:33,379 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2553] [2023-12-02 16:21:33,471 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_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/sv-benchmarks/c/product-lines/email_spec11_product08.cil.c[54831,54844] [2023-12-02 16:21:33,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:21:33,501 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:21:33,509 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:21:33,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33 WrapperNode [2023-12-02 16:21:33,510 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:21:33,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:21:33,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:21:33,511 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:21:33,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33" (1/1) ... [2023-12-02 16:21:33,544 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33" (1/1) ... [2023-12-02 16:21:33,585 INFO L138 Inliner]: procedures = 121, calls = 176, calls flagged for inlining = 46, calls inlined = 40, statements flattened = 758 [2023-12-02 16:21:33,585 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:21:33,586 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:21:33,586 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:21:33,586 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:21:33,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33" (1/1) ... [2023-12-02 16:21:33,596 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33" (1/1) ... [2023-12-02 16:21:33,601 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33" (1/1) ... [2023-12-02 16:21:33,601 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33" (1/1) ... [2023-12-02 16:21:33,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33" (1/1) ... [2023-12-02 16:21:33,622 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33" (1/1) ... [2023-12-02 16:21:33,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33" (1/1) ... [2023-12-02 16:21:33,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33" (1/1) ... [2023-12-02 16:21:33,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:21:33,640 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:21:33,641 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:21:33,641 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:21:33,642 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33" (1/1) ... [2023-12-02 16:21:33,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:21:33,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:21:33,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:21:33,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:21:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 16:21:33,726 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 16:21:33,726 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 16:21:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 16:21:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 16:21:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 16:21:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 16:21:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 16:21:33,727 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 16:21:33,727 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 16:21:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 16:21:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 16:21:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 16:21:33,728 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 16:21:33,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 16:21:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:21:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 16:21:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 16:21:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 16:21:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 16:21:33,729 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 16:21:33,729 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 16:21:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 16:21:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 16:21:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 16:21:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 16:21:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 16:21:33,730 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 16:21:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:21:33,730 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 16:21:33,731 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 16:21:33,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:21:33,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:21:33,883 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:21:33,885 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:21:34,372 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:21:34,714 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:21:34,714 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 16:21:34,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:21:34 BoogieIcfgContainer [2023-12-02 16:21:34,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:21:34,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:21:34,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:21:34,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:21:34,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:21:32" (1/3) ... [2023-12-02 16:21:34,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7336432b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:21:34, skipping insertion in model container [2023-12-02 16:21:34,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:21:33" (2/3) ... [2023-12-02 16:21:34,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7336432b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:21:34, skipping insertion in model container [2023-12-02 16:21:34,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:21:34" (3/3) ... [2023-12-02 16:21:34,726 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product08.cil.c [2023-12-02 16:21:34,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:21:34,747 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 16:21:34,801 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:21:34,808 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;@77e58cd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:21:34,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 16:21:34,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 76 states have (on average 1.381578947368421) internal successors, (105), 78 states have internal predecessors, (105), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-02 16:21:34,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 16:21:34,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:34,827 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] [2023-12-02 16:21:34,827 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:21:34,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:34,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1006274867, now seen corresponding path program 1 times [2023-12-02 16:21:34,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:34,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414538771] [2023-12-02 16:21:34,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:34,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:35,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:35,153 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 16:21:35,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:35,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414538771] [2023-12-02 16:21:35,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414538771] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:21:35,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:21:35,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 16:21:35,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501891702] [2023-12-02 16:21:35,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:21:35,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:21:35,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:35,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:21:35,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:21:35,195 INFO L87 Difference]: Start difference. First operand has 126 states, 76 states have (on average 1.381578947368421) internal successors, (105), 78 states have internal predecessors, (105), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 16:21:35,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:35,283 INFO L93 Difference]: Finished difference Result 169 states and 224 transitions. [2023-12-02 16:21:35,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:21:35,285 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 54 [2023-12-02 16:21:35,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:35,295 INFO L225 Difference]: With dead ends: 169 [2023-12-02 16:21:35,295 INFO L226 Difference]: Without dead ends: 123 [2023-12-02 16:21:35,298 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 16:21:35,302 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:35,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:21:35,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2023-12-02 16:21:35,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2023-12-02 16:21:35,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 74 states have (on average 1.337837837837838) internal successors, (99), 75 states have internal predecessors, (99), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-02 16:21:35,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 166 transitions. [2023-12-02 16:21:35,356 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 166 transitions. Word has length 54 [2023-12-02 16:21:35,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:35,358 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 166 transitions. [2023-12-02 16:21:35,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 16:21:35,358 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 166 transitions. [2023-12-02 16:21:35,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 16:21:35,362 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:35,362 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] [2023-12-02 16:21:35,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 16:21:35,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:21:35,363 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:35,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1318265428, now seen corresponding path program 1 times [2023-12-02 16:21:35,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:35,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917474656] [2023-12-02 16:21:35,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:35,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:35,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:35,529 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 16:21:35,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:35,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917474656] [2023-12-02 16:21:35,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917474656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:21:35,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:21:35,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:21:35,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50999711] [2023-12-02 16:21:35,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:21:35,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:21:35,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:35,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:21:35,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:21:35,533 INFO L87 Difference]: Start difference. First operand 123 states and 166 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 16:21:35,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:35,606 INFO L93 Difference]: Finished difference Result 165 states and 212 transitions. [2023-12-02 16:21:35,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:21:35,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 55 [2023-12-02 16:21:35,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:35,609 INFO L225 Difference]: With dead ends: 165 [2023-12-02 16:21:35,609 INFO L226 Difference]: Without dead ends: 125 [2023-12-02 16:21:35,610 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 16:21:35,611 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:35,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 287 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:21:35,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2023-12-02 16:21:35,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2023-12-02 16:21:35,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 76 states have (on average 1.3289473684210527) internal successors, (101), 77 states have internal predecessors, (101), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-12-02 16:21:35,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 168 transitions. [2023-12-02 16:21:35,627 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 168 transitions. Word has length 55 [2023-12-02 16:21:35,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:35,628 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 168 transitions. [2023-12-02 16:21:35,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 16:21:35,628 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 168 transitions. [2023-12-02 16:21:35,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 16:21:35,631 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:35,631 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] [2023-12-02 16:21:35,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:21:35,632 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:21:35,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:35,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1457850496, now seen corresponding path program 1 times [2023-12-02 16:21:35,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:35,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530693589] [2023-12-02 16:21:35,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:35,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:35,742 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 16:21:35,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:35,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530693589] [2023-12-02 16:21:35,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530693589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:21:35,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:21:35,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:21:35,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660876004] [2023-12-02 16:21:35,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:21:35,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:21:35,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:21:35,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:21:35,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:21:35,745 INFO L87 Difference]: Start difference. First operand 125 states and 168 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 16:21:35,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:21:35,825 INFO L93 Difference]: Finished difference Result 280 states and 395 transitions. [2023-12-02 16:21:35,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:21:35,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 60 [2023-12-02 16:21:35,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:21:35,828 INFO L225 Difference]: With dead ends: 280 [2023-12-02 16:21:35,829 INFO L226 Difference]: Without dead ends: 173 [2023-12-02 16:21:35,830 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 16:21:35,831 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 57 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:21:35,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 298 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:21:35,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-12-02 16:21:35,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 168. [2023-12-02 16:21:35,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 108 states have (on average 1.4259259259259258) internal successors, (154), 109 states have internal predecessors, (154), 45 states have call successors, (45), 14 states have call predecessors, (45), 14 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-02 16:21:35,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 243 transitions. [2023-12-02 16:21:35,855 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 243 transitions. Word has length 60 [2023-12-02 16:21:35,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:21:35,855 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 243 transitions. [2023-12-02 16:21:35,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 16:21:35,855 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 243 transitions. [2023-12-02 16:21:35,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 16:21:35,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:21:35,860 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] [2023-12-02 16:21:35,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 16:21:35,860 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:21:35,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:21:35,860 INFO L85 PathProgramCache]: Analyzing trace with hash 19721769, now seen corresponding path program 1 times [2023-12-02 16:21:35,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:21:35,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462923181] [2023-12-02 16:21:35,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:35,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:21:35,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:36,013 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 16:21:36,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:21:36,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462923181] [2023-12-02 16:21:36,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462923181] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:21:36,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [395274355] [2023-12-02 16:21:36,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:21:36,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:21:36,015 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:21:36,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:21:36,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:21:36,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:21:36,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:21:36,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:21:36,396 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 16:21:36,397 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:21:36,468 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 16:21:36,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [395274355] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:21:36,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [294645132] [2023-12-02 16:21:36,489 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2023-12-02 16:21:36,489 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:21:36,493 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:21:36,499 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:21:36,499 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:22:12,478 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 16:22:12,719 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 16:22:12,886 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:23:10,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [294645132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:23:10,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:23:10,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 16:23:10,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236126670] [2023-12-02 16:23:10,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:23:10,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 16:23:10,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:23:10,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 16:23:10,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 16:23:10,228 INFO L87 Difference]: Start difference. First operand 168 states and 243 transitions. Second operand has 24 states, 16 states have (on average 1.9375) internal successors, (31), 15 states have internal predecessors, (31), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 16:23:17,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:23:17,334 INFO L93 Difference]: Finished difference Result 381 states and 582 transitions. [2023-12-02 16:23:17,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 16:23:17,335 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 1.9375) internal successors, (31), 15 states have internal predecessors, (31), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 61 [2023-12-02 16:23:17,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:23:17,339 INFO L225 Difference]: With dead ends: 381 [2023-12-02 16:23:17,339 INFO L226 Difference]: Without dead ends: 231 [2023-12-02 16:23:17,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 57.3s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 16:23:17,343 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 112 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 1918 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 2082 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1918 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-12-02 16:23:17,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 2082 Invalid, 1927 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1918 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-12-02 16:23:17,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2023-12-02 16:23:17,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 191. [2023-12-02 16:23:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 130 states have (on average 1.4384615384615385) internal successors, (187), 131 states have internal predecessors, (187), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-02 16:23:17,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 276 transitions. [2023-12-02 16:23:17,413 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 276 transitions. Word has length 61 [2023-12-02 16:23:17,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:23:17,413 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 276 transitions. [2023-12-02 16:23:17,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 1.9375) internal successors, (31), 15 states have internal predecessors, (31), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 16:23:17,414 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 276 transitions. [2023-12-02 16:23:17,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 16:23:17,417 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:23:17,417 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] [2023-12-02 16:23:17,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:23:17,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:23:17,618 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:23:17,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:23:17,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1267331952, now seen corresponding path program 1 times [2023-12-02 16:23:17,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:23:17,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343170457] [2023-12-02 16:23:17,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:23:17,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:23:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:23:17,704 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 16:23:17,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:23:17,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343170457] [2023-12-02 16:23:17,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343170457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:23:17,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:23:17,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 16:23:17,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082780702] [2023-12-02 16:23:17,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:23:17,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 16:23:17,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:23:17,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 16:23:17,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 16:23:17,707 INFO L87 Difference]: Start difference. First operand 191 states and 276 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 16:23:17,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:23:17,841 INFO L93 Difference]: Finished difference Result 475 states and 716 transitions. [2023-12-02 16:23:17,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 16:23:17,842 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 66 [2023-12-02 16:23:17,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:23:17,845 INFO L225 Difference]: With dead ends: 475 [2023-12-02 16:23:17,845 INFO L226 Difference]: Without dead ends: 308 [2023-12-02 16:23:17,846 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 16:23:17,847 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 55 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:23:17,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 298 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:23:17,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-12-02 16:23:17,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 303. [2023-12-02 16:23:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 217 states have (on average 1.4884792626728112) internal successors, (323), 218 states have internal predecessors, (323), 70 states have call successors, (70), 15 states have call predecessors, (70), 15 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-02 16:23:17,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 462 transitions. [2023-12-02 16:23:17,962 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 462 transitions. Word has length 66 [2023-12-02 16:23:17,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:23:17,962 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 462 transitions. [2023-12-02 16:23:17,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 16:23:17,963 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 462 transitions. [2023-12-02 16:23:17,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 16:23:17,965 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:23:17,966 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] [2023-12-02 16:23:17,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 16:23:17,966 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:23:17,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:23:17,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1620378998, now seen corresponding path program 1 times [2023-12-02 16:23:17,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:23:17,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445391850] [2023-12-02 16:23:17,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:23:17,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:23:17,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:23:18,105 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 16:23:18,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:23:18,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445391850] [2023-12-02 16:23:18,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445391850] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:23:18,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572515739] [2023-12-02 16:23:18,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:23:18,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:23:18,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:23:18,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:23:18,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 16:23:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:23:18,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:23:18,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:23:18,394 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 16:23:18,394 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:23:18,448 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 16:23:18,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572515739] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:23:18,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [126526851] [2023-12-02 16:23:18,452 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2023-12-02 16:23:18,452 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:23:18,453 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:23:18,453 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:23:18,453 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:24:13,698 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 16:24:13,857 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 451 for LOIs [2023-12-02 16:24:15,762 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:24:34,436 WARN L293 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 451 DAG size of output: 451 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:24:42,736 WARN L293 SmtUtils]: Spent 8.15s on a formula simplification. DAG size of input: 481 DAG size of output: 477 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:25:17,404 WARN L293 SmtUtils]: Spent 8.20s on a formula simplification. DAG size of input: 478 DAG size of output: 478 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:25:26,098 WARN L293 SmtUtils]: Spent 8.39s on a formula simplification. DAG size of input: 479 DAG size of output: 478 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:25:34,959 WARN L293 SmtUtils]: Spent 8.52s on a formula simplification. DAG size of input: 485 DAG size of output: 484 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:25:44,265 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification. DAG size of input: 483 DAG size of output: 482 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:25:53,539 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification. DAG size of input: 487 DAG size of output: 486 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:26:02,890 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification. DAG size of input: 485 DAG size of output: 484 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:26:12,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [126526851] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:26:12,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:26:12,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 16:26:12,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979778985] [2023-12-02 16:26:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:26:12,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 16:26:12,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:26:12,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 16:26:12,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 16:26:12,924 INFO L87 Difference]: Start difference. First operand 303 states and 462 transitions. Second operand has 28 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-02 16:26:22,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:26:22,874 INFO L93 Difference]: Finished difference Result 622 states and 977 transitions. [2023-12-02 16:26:22,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 16:26:22,875 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 67 [2023-12-02 16:26:22,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:26:22,878 INFO L225 Difference]: With dead ends: 622 [2023-12-02 16:26:22,878 INFO L226 Difference]: Without dead ends: 382 [2023-12-02 16:26:22,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 117.1s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 16:26:22,879 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 193 mSDsluCounter, 1853 mSDsCounter, 0 mSdLazyCounter, 2114 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 2122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2023-12-02 16:26:22,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1983 Invalid, 2122 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2114 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2023-12-02 16:26:22,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2023-12-02 16:26:22,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 317. [2023-12-02 16:26:22,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 229 states have (on average 1.48471615720524) internal successors, (340), 230 states have internal predecessors, (340), 71 states have call successors, (71), 16 states have call predecessors, (71), 16 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-02 16:26:22,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 481 transitions. [2023-12-02 16:26:22,980 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 481 transitions. Word has length 67 [2023-12-02 16:26:22,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:26:22,981 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 481 transitions. [2023-12-02 16:26:22,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-02 16:26:22,981 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 481 transitions. [2023-12-02 16:26:22,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 16:26:22,983 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:26:22,984 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] [2023-12-02 16:26:22,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 16:26:23,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 16:26:23,185 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:26:23,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:26:23,185 INFO L85 PathProgramCache]: Analyzing trace with hash 263122096, now seen corresponding path program 1 times [2023-12-02 16:26:23,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:26:23,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828342690] [2023-12-02 16:26:23,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:26:23,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:26:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:26:23,345 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 16:26:23,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:26:23,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828342690] [2023-12-02 16:26:23,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828342690] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:26:23,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999436869] [2023-12-02 16:26:23,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:26:23,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:26:23,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:26:23,348 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:26:23,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 16:26:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:26:23,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:26:23,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:26:23,644 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 16:26:23,644 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:26:23,698 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 16:26:23,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999436869] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:26:23,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1280696566] [2023-12-02 16:26:23,702 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-12-02 16:26:23,702 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:26:23,703 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:26:23,703 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:26:23,703 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:28:05,486 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 16:28:05,647 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 518 for LOIs [2023-12-02 16:28:07,082 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 442 for LOIs [2023-12-02 16:28:08,027 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 16:28:08,182 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 527 for LOIs [2023-12-02 16:28:09,675 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:29:42,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1280696566] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:29:42,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:29:42,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 16:29:42,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714083492] [2023-12-02 16:29:42,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:29:42,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 16:29:42,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:29:42,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 16:29:42,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 16:29:42,879 INFO L87 Difference]: Start difference. First operand 317 states and 481 transitions. Second operand has 33 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2023-12-02 16:29:56,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:29:56,776 INFO L93 Difference]: Finished difference Result 647 states and 1012 transitions. [2023-12-02 16:29:56,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 16:29:56,777 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 70 [2023-12-02 16:29:56,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:29:56,781 INFO L225 Difference]: With dead ends: 647 [2023-12-02 16:29:56,781 INFO L226 Difference]: Without dead ends: 407 [2023-12-02 16:29:56,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 93.2s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 16:29:56,783 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 58 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 2663 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2247 SdHoareTripleChecker+Invalid, 2672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:29:56,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2247 Invalid, 2672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2663 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2023-12-02 16:29:56,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2023-12-02 16:29:56,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 353. [2023-12-02 16:29:56,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 259 states have (on average 1.4749034749034748) internal successors, (382), 260 states have internal predecessors, (382), 74 states have call successors, (74), 19 states have call predecessors, (74), 19 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-02 16:29:56,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 529 transitions. [2023-12-02 16:29:56,927 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 529 transitions. Word has length 70 [2023-12-02 16:29:56,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:29:56,928 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 529 transitions. [2023-12-02 16:29:56,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.7894736842105263) internal successors, (34), 18 states have internal predecessors, (34), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2023-12-02 16:29:56,928 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 529 transitions. [2023-12-02 16:29:56,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 16:29:56,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:29:56,929 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] [2023-12-02 16:29:56,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 16:29:57,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:29:57,130 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:29:57,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:29:57,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1987578401, now seen corresponding path program 1 times [2023-12-02 16:29:57,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:29:57,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118189855] [2023-12-02 16:29:57,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:29:57,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:29:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:29:57,240 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 16:29:57,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:29:57,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118189855] [2023-12-02 16:29:57,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118189855] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:29:57,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [720099056] [2023-12-02 16:29:57,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:29:57,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:29:57,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:29:57,241 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:29:57,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 16:29:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:29:57,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 16:29:57,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:29:57,508 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 16:29:57,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:29:57,557 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 16:29:57,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [720099056] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:29:57,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [711265167] [2023-12-02 16:29:57,561 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2023-12-02 16:29:57,561 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:29:57,561 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:29:57,562 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:29:57,562 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:31:07,910 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 16:31:08,069 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 16:31:08,224 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:31:57,744 WARN L293 SmtUtils]: Spent 8.31s on a formula simplification. DAG size of input: 482 DAG size of output: 482 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:32:06,566 WARN L293 SmtUtils]: Spent 8.56s on a formula simplification. DAG size of input: 483 DAG size of output: 482 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:32:16,123 WARN L293 SmtUtils]: Spent 9.21s on a formula simplification. DAG size of input: 489 DAG size of output: 488 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:32:25,597 WARN L293 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 487 DAG size of output: 486 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:32:34,983 WARN L293 SmtUtils]: Spent 9.01s on a formula simplification. DAG size of input: 491 DAG size of output: 490 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:32:44,566 WARN L293 SmtUtils]: Spent 9.18s on a formula simplification. DAG size of input: 489 DAG size of output: 488 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:32:54,002 WARN L293 SmtUtils]: Spent 9.01s on a formula simplification. DAG size of input: 493 DAG size of output: 492 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:33:03,739 WARN L293 SmtUtils]: Spent 9.25s on a formula simplification. DAG size of input: 491 DAG size of output: 490 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:33:13,186 WARN L293 SmtUtils]: Spent 8.97s on a formula simplification. DAG size of input: 495 DAG size of output: 494 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:33:22,888 WARN L293 SmtUtils]: Spent 9.18s on a formula simplification. DAG size of input: 493 DAG size of output: 492 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:33:32,199 WARN L293 SmtUtils]: Spent 8.79s on a formula simplification. DAG size of input: 497 DAG size of output: 496 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:33:41,773 WARN L293 SmtUtils]: Spent 8.99s on a formula simplification. DAG size of input: 495 DAG size of output: 494 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:33:45,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [711265167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:33:45,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:33:45,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 16:33:45,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954775106] [2023-12-02 16:33:45,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:33:45,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 16:33:45,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:33:45,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 16:33:45,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 16:33:45,373 INFO L87 Difference]: Start difference. First operand 353 states and 529 transitions. Second operand has 32 states, 24 states have (on average 1.625) internal successors, (39), 23 states have internal predecessors, (39), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 16:33:57,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:33:57,295 INFO L93 Difference]: Finished difference Result 661 states and 1027 transitions. [2023-12-02 16:33:57,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 16:33:57,296 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 1.625) internal successors, (39), 23 states have internal predecessors, (39), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 69 [2023-12-02 16:33:57,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:33:57,298 INFO L225 Difference]: With dead ends: 661 [2023-12-02 16:33:57,298 INFO L226 Difference]: Without dead ends: 421 [2023-12-02 16:33:57,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 157.1s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 16:33:57,300 INFO L413 NwaCegarLoop]: 125 mSDtfsCounter, 68 mSDsluCounter, 1872 mSDsCounter, 0 mSdLazyCounter, 2416 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 2424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 16:33:57,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 1997 Invalid, 2424 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2416 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 16:33:57,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-12-02 16:33:57,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 373. [2023-12-02 16:33:57,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 279 states have (on average 1.4767025089605734) internal successors, (412), 280 states have internal predecessors, (412), 74 states have call successors, (74), 19 states have call predecessors, (74), 19 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-02 16:33:57,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 559 transitions. [2023-12-02 16:33:57,453 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 559 transitions. Word has length 69 [2023-12-02 16:33:57,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:33:57,453 INFO L495 AbstractCegarLoop]: Abstraction has 373 states and 559 transitions. [2023-12-02 16:33:57,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 1.625) internal successors, (39), 23 states have internal predecessors, (39), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 16:33:57,453 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 559 transitions. [2023-12-02 16:33:57,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 16:33:57,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:33:57,455 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] [2023-12-02 16:33:57,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-02 16:33:57,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:33:57,655 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 16:33:57,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:33:57,656 INFO L85 PathProgramCache]: Analyzing trace with hash 2145231571, now seen corresponding path program 1 times [2023-12-02 16:33:57,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:33:57,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907386324] [2023-12-02 16:33:57,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:33:57,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:33:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:33:57,819 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 16:33:57,819 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:33:57,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907386324] [2023-12-02 16:33:57,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907386324] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:33:57,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641573423] [2023-12-02 16:33:57,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:33:57,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:33:57,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:33:57,821 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:33:57,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea1fa4f8-9a1c-472a-b970-ce6e00d36d7f/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 16:33:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:33:58,047 INFO L262 TraceCheckSpWp]: Trace formula consists of 882 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:33:58,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:33:58,112 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 16:33:58,112 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:33:58,195 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 16:33:58,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641573423] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:33:58,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1218038964] [2023-12-02 16:33:58,198 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2023-12-02 16:33:58,199 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:33:58,199 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:33:58,199 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:33:58,200 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:34:49,742 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 16:34:49,903 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 453 for LOIs [2023-12-02 16:34:51,836 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:35:11,482 WARN L293 SmtUtils]: Spent 5.77s on a formula simplification. DAG size of input: 453 DAG size of output: 453 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 16:35:20,019 WARN L293 SmtUtils]: Spent 8.28s on a formula simplification. DAG size of input: 483 DAG size of output: 479 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)