./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/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_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/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_85b8203c-e38b-47c8-8a60-78bde987287d/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 7a4e3d1ef75cde0243f57ce4bcedb5827704adb835017a69deaa6c50c3201720 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:38:44,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:38:44,334 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:38:44,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:38:44,339 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:38:44,363 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:38:44,364 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:38:44,365 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:38:44,365 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:38:44,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:38:44,366 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:38:44,367 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:38:44,367 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:38:44,368 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:38:44,368 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:38:44,369 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:38:44,369 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:38:44,370 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:38:44,370 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:38:44,371 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:38:44,372 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:38:44,372 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:38:44,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:38:44,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:38:44,374 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:38:44,374 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:38:44,375 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:38:44,375 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:38:44,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:38:44,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:38:44,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:38:44,377 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:38:44,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:38:44,377 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:38:44,378 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:38:44,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:38:44,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:38:44,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:38:44,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:38:44,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:38:44,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:38:44,379 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:38:44,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:38:44,380 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:38:44,380 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:38:44,380 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:38:44,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:38:44,380 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_85b8203c-e38b-47c8-8a60-78bde987287d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a4e3d1ef75cde0243f57ce4bcedb5827704adb835017a69deaa6c50c3201720 [2023-12-02 13:38:44,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:38:44,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:38:44,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:38:44,638 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:38:44,639 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:38:44,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec7_product19.cil.c [2023-12-02 13:38:47,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:38:47,736 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:38:47,736 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/sv-benchmarks/c/product-lines/email_spec7_product19.cil.c [2023-12-02 13:38:47,758 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/data/f499018be/e482498fd89241eb8f553e8cf192b907/FLAGe62ef8572 [2023-12-02 13:38:47,773 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/data/f499018be/e482498fd89241eb8f553e8cf192b907 [2023-12-02 13:38:47,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:38:47,778 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:38:47,779 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:38:47,779 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:38:47,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:38:47,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:47" (1/1) ... [2023-12-02 13:38:47,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4214d533 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:47, skipping insertion in model container [2023-12-02 13:38:47,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:38:47" (1/1) ... [2023-12-02 13:38:47,865 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:38:48,313 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_85b8203c-e38b-47c8-8a60-78bde987287d/sv-benchmarks/c/product-lines/email_spec7_product19.cil.c[37206,37219] [2023-12-02 13:38:48,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:38:48,392 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:38:48,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [48] [2023-12-02 13:38:48,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [79] [2023-12-02 13:38:48,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [97] [2023-12-02 13:38:48,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [509] [2023-12-02 13:38:48,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [547] [2023-12-02 13:38:48,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [913] [2023-12-02 13:38:48,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1138] [2023-12-02 13:38:48,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1236] [2023-12-02 13:38:48,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1533] [2023-12-02 13:38:48,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1815] [2023-12-02 13:38:48,407 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1824] [2023-12-02 13:38:48,465 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_85b8203c-e38b-47c8-8a60-78bde987287d/sv-benchmarks/c/product-lines/email_spec7_product19.cil.c[37206,37219] [2023-12-02 13:38:48,528 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:38:48,551 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:38:48,557 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:38:48,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48 WrapperNode [2023-12-02 13:38:48,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:38:48,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:38:48,559 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:38:48,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:38:48,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48" (1/1) ... [2023-12-02 13:38:48,591 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48" (1/1) ... [2023-12-02 13:38:48,650 INFO L138 Inliner]: procedures = 127, calls = 196, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1011 [2023-12-02 13:38:48,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:38:48,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:38:48,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:38:48,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:38:48,662 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48" (1/1) ... [2023-12-02 13:38:48,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48" (1/1) ... [2023-12-02 13:38:48,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48" (1/1) ... [2023-12-02 13:38:48,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48" (1/1) ... [2023-12-02 13:38:48,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48" (1/1) ... [2023-12-02 13:38:48,705 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48" (1/1) ... [2023-12-02 13:38:48,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48" (1/1) ... [2023-12-02 13:38:48,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48" (1/1) ... [2023-12-02 13:38:48,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:38:48,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:38:48,728 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:38:48,728 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:38:48,729 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48" (1/1) ... [2023-12-02 13:38:48,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:38:48,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:38:48,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:38:48,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:38:48,805 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 13:38:48,805 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 13:38:48,805 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 13:38:48,805 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 13:38:48,806 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 13:38:48,806 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 13:38:48,806 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 13:38:48,806 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 13:38:48,806 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 13:38:48,807 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 13:38:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 13:38:48,807 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 13:38:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 13:38:48,807 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 13:38:48,808 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 13:38:48,808 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 13:38:48,808 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 13:38:48,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:38:48,808 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 13:38:48,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 13:38:48,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 13:38:48,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 13:38:48,809 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 13:38:48,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 13:38:48,809 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 13:38:48,809 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 13:38:48,810 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 13:38:48,810 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 13:38:48,810 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 13:38:48,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 13:38:48,810 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 13:38:48,810 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 13:38:48,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:38:48,811 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 13:38:48,811 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 13:38:48,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:38:48,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:38:48,992 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:38:48,995 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:38:49,641 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:38:49,981 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:38:49,982 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:38:49,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:49 BoogieIcfgContainer [2023-12-02 13:38:49,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:38:49,986 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:38:49,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:38:49,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:38:49,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:38:47" (1/3) ... [2023-12-02 13:38:49,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f27b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:49, skipping insertion in model container [2023-12-02 13:38:49,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:38:48" (2/3) ... [2023-12-02 13:38:49,990 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f27b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:38:49, skipping insertion in model container [2023-12-02 13:38:49,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:38:49" (3/3) ... [2023-12-02 13:38:49,991 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product19.cil.c [2023-12-02 13:38:50,007 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:38:50,007 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:38:50,049 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:38:50,055 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;@109a3b37, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:38:50,055 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:38:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 92 states have internal predecessors, (122), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-12-02 13:38:50,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 13:38:50,070 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:38:50,071 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] [2023-12-02 13:38:50,071 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:38:50,076 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:38:50,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1870115453, now seen corresponding path program 1 times [2023-12-02 13:38:50,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:38:50,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8116045] [2023-12-02 13:38:50,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:38:50,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:38:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:38:50,359 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:38:50,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:38:50,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8116045] [2023-12-02 13:38:50,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8116045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:38:50,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:38:50,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:38:50,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818261876] [2023-12-02 13:38:50,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:38:50,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:38:50,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:38:50,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:38:50,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:38:50,397 INFO L87 Difference]: Start difference. First operand has 150 states, 90 states have (on average 1.3555555555555556) internal successors, (122), 92 states have internal predecessors, (122), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 13:38:50,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:38:50,503 INFO L93 Difference]: Finished difference Result 217 states and 290 transitions. [2023-12-02 13:38:50,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:38:50,506 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 53 [2023-12-02 13:38:50,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:38:50,516 INFO L225 Difference]: With dead ends: 217 [2023-12-02 13:38:50,516 INFO L226 Difference]: Without dead ends: 147 [2023-12-02 13:38:50,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:38:50,548 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:38:50,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 174 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:38:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-12-02 13:38:50,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2023-12-02 13:38:50,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 89 states have internal predecessors, (116), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-02 13:38:50,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 199 transitions. [2023-12-02 13:38:50,598 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 199 transitions. Word has length 53 [2023-12-02 13:38:50,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:38:50,599 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 199 transitions. [2023-12-02 13:38:50,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 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 13:38:50,600 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 199 transitions. [2023-12-02 13:38:50,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 13:38:50,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:38:50,604 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 13:38:50,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:38:50,605 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:38:50,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:38:50,605 INFO L85 PathProgramCache]: Analyzing trace with hash 1047853870, now seen corresponding path program 1 times [2023-12-02 13:38:50,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:38:50,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906822415] [2023-12-02 13:38:50,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:38:50,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:38:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:38:50,768 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:38:50,768 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:38:50,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906822415] [2023-12-02 13:38:50,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906822415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:38:50,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:38:50,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:38:50,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713359238] [2023-12-02 13:38:50,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:38:50,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:38:50,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:38:50,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:38:50,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:38:50,772 INFO L87 Difference]: Start difference. First operand 147 states and 199 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 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 13:38:50,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:38:50,875 INFO L93 Difference]: Finished difference Result 213 states and 278 transitions. [2023-12-02 13:38:50,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:38:50,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 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 13:38:50,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:38:50,879 INFO L225 Difference]: With dead ends: 213 [2023-12-02 13:38:50,879 INFO L226 Difference]: Without dead ends: 149 [2023-12-02 13:38:50,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:38:50,882 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 0 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:38:50,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 341 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:38:50,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-12-02 13:38:50,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2023-12-02 13:38:50,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 90 states have (on average 1.3111111111111111) internal successors, (118), 91 states have internal predecessors, (118), 42 states have call successors, (42), 16 states have call predecessors, (42), 16 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-12-02 13:38:50,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 201 transitions. [2023-12-02 13:38:50,900 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 201 transitions. Word has length 54 [2023-12-02 13:38:50,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:38:50,901 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 201 transitions. [2023-12-02 13:38:50,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 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 13:38:50,901 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 201 transitions. [2023-12-02 13:38:50,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 13:38:50,904 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:38:50,904 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] [2023-12-02 13:38:50,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:38:50,905 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:38:50,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:38:50,906 INFO L85 PathProgramCache]: Analyzing trace with hash -2048745638, now seen corresponding path program 1 times [2023-12-02 13:38:50,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:38:50,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376472132] [2023-12-02 13:38:50,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:38:50,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:38:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:38:50,999 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:38:51,000 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:38:51,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376472132] [2023-12-02 13:38:51,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376472132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:38:51,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:38:51,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:38:51,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28466692] [2023-12-02 13:38:51,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:38:51,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:38:51,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:38:51,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:38:51,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:38:51,002 INFO L87 Difference]: Start difference. First operand 149 states and 201 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (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 13:38:51,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:38:51,100 INFO L93 Difference]: Finished difference Result 328 states and 461 transitions. [2023-12-02 13:38:51,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:38:51,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (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 59 [2023-12-02 13:38:51,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:38:51,119 INFO L225 Difference]: With dead ends: 328 [2023-12-02 13:38:51,119 INFO L226 Difference]: Without dead ends: 197 [2023-12-02 13:38:51,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:38:51,122 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 57 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:38:51,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 335 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:38:51,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-02 13:38:51,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 192. [2023-12-02 13:38:51,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 122 states have (on average 1.401639344262295) internal successors, (171), 123 states have internal predecessors, (171), 53 states have call successors, (53), 16 states have call predecessors, (53), 16 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-02 13:38:51,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 276 transitions. [2023-12-02 13:38:51,147 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 276 transitions. Word has length 59 [2023-12-02 13:38:51,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:38:51,147 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 276 transitions. [2023-12-02 13:38:51,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (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 13:38:51,147 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 276 transitions. [2023-12-02 13:38:51,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 13:38:51,151 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:38:51,151 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 13:38:51,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:38:51,152 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:38:51,152 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:38:51,152 INFO L85 PathProgramCache]: Analyzing trace with hash -2000831797, now seen corresponding path program 1 times [2023-12-02 13:38:51,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:38:51,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228734177] [2023-12-02 13:38:51,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:38:51,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:38:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:38:51,319 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:38:51,320 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:38:51,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228734177] [2023-12-02 13:38:51,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228734177] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:38:51,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833749527] [2023-12-02 13:38:51,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:38:51,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:38:51,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:38:51,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:38:51,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:38:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:38:51,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:38:51,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:38:51,723 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:38:51,723 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:38:51,788 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:38:51,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833749527] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:38:51,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [237937270] [2023-12-02 13:38:51,806 INFO L159 IcfgInterpreter]: Started Sifa with 49 locations of interest [2023-12-02 13:38:51,806 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:38:51,809 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:38:51,815 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:38:51,815 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:39:29,587 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:39:29,744 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 13:39:29,908 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:40:23,723 WARN L293 SmtUtils]: Spent 8.76s on a formula simplification. DAG size of input: 484 DAG size of output: 484 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:40:37,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [237937270] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:40:37,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:40:37,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 13:40:37,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283492547] [2023-12-02 13:40:37,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:40:37,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 13:40:37,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:40:37,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 13:40:37,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:40:37,832 INFO L87 Difference]: Start difference. First operand 192 states and 276 transitions. Second operand has 24 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 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 13:40:45,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:40:45,770 INFO L93 Difference]: Finished difference Result 429 states and 648 transitions. [2023-12-02 13:40:45,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 13:40:45,770 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 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 60 [2023-12-02 13:40:45,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:40:45,773 INFO L225 Difference]: With dead ends: 429 [2023-12-02 13:40:45,773 INFO L226 Difference]: Without dead ends: 255 [2023-12-02 13:40:45,774 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 153 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 67.9s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:40:45,775 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 55 mSDsluCounter, 2234 mSDsCounter, 0 mSdLazyCounter, 2078 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2023-12-02 13:40:45,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 2416 Invalid, 2087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2078 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2023-12-02 13:40:45,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2023-12-02 13:40:45,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 215. [2023-12-02 13:40:45,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 144 states have (on average 1.4166666666666667) internal successors, (204), 145 states have internal predecessors, (204), 53 states have call successors, (53), 17 states have call predecessors, (53), 17 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-12-02 13:40:45,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 309 transitions. [2023-12-02 13:40:45,835 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 309 transitions. Word has length 60 [2023-12-02 13:40:45,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:40:45,836 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 309 transitions. [2023-12-02 13:40:45,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 1.875) internal successors, (30), 15 states have internal predecessors, (30), 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 13:40:45,836 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 309 transitions. [2023-12-02 13:40:45,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 13:40:45,838 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:40:45,838 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] [2023-12-02 13:40:45,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:40:46,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:40:46,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:40:46,039 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:40:46,039 INFO L85 PathProgramCache]: Analyzing trace with hash 238300575, now seen corresponding path program 1 times [2023-12-02 13:40:46,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:40:46,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108418808] [2023-12-02 13:40:46,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:40:46,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:40:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:40:46,131 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:40:46,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:40:46,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108418808] [2023-12-02 13:40:46,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108418808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:40:46,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:40:46,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:40:46,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009045539] [2023-12-02 13:40:46,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:40:46,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:40:46,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:40:46,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:40:46,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:40:46,134 INFO L87 Difference]: Start difference. First operand 215 states and 309 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 13:40:46,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:40:46,294 INFO L93 Difference]: Finished difference Result 523 states and 782 transitions. [2023-12-02 13:40:46,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:40:46,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 65 [2023-12-02 13:40:46,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:40:46,298 INFO L225 Difference]: With dead ends: 523 [2023-12-02 13:40:46,298 INFO L226 Difference]: Without dead ends: 332 [2023-12-02 13:40:46,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:40:46,299 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 55 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:40:46,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 351 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:40:46,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2023-12-02 13:40:46,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 327. [2023-12-02 13:40:46,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 231 states have (on average 1.4718614718614718) internal successors, (340), 232 states have internal predecessors, (340), 78 states have call successors, (78), 17 states have call predecessors, (78), 17 states have return successors, (77), 77 states have call predecessors, (77), 77 states have call successors, (77) [2023-12-02 13:40:46,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 495 transitions. [2023-12-02 13:40:46,390 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 495 transitions. Word has length 65 [2023-12-02 13:40:46,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:40:46,390 INFO L495 AbstractCegarLoop]: Abstraction has 327 states and 495 transitions. [2023-12-02 13:40:46,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 13:40:46,390 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 495 transitions. [2023-12-02 13:40:46,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 13:40:46,392 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:40:46,393 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 13:40:46,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:40:46,393 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:40:46,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:40:46,394 INFO L85 PathProgramCache]: Analyzing trace with hash 978618771, now seen corresponding path program 1 times [2023-12-02 13:40:46,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:40:46,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138763566] [2023-12-02 13:40:46,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:40:46,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:40:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:40:46,537 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:40:46,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:40:46,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138763566] [2023-12-02 13:40:46,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138763566] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:40:46,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724687551] [2023-12-02 13:40:46,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:40:46,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:40:46,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:40:46,539 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:40:46,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:40:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:40:46,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:40:46,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:40:46,830 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:40:46,830 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:40:46,880 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:40:46,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724687551] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:40:46,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [107514320] [2023-12-02 13:40:46,884 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2023-12-02 13:40:46,884 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:40:46,885 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:40:46,885 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:40:46,885 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:41:38,122 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:41:38,279 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 461 for LOIs [2023-12-02 13:41:40,251 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:41:59,617 WARN L293 SmtUtils]: Spent 5.74s on a formula simplification. DAG size of input: 461 DAG size of output: 461 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:42:08,702 WARN L293 SmtUtils]: Spent 8.88s on a formula simplification. DAG size of input: 491 DAG size of output: 486 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:42:45,608 WARN L293 SmtUtils]: Spent 8.80s on a formula simplification. DAG size of input: 488 DAG size of output: 488 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:43:14,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [107514320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:43:14,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:43:14,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 13:43:14,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939038558] [2023-12-02 13:43:14,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:43:14,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:43:14,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:43:14,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:43:14,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:43:14,123 INFO L87 Difference]: Start difference. First operand 327 states and 495 transitions. Second operand has 28 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 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 13:43:25,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:43:25,976 INFO L93 Difference]: Finished difference Result 670 states and 1043 transitions. [2023-12-02 13:43:25,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 13:43:25,977 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 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 66 [2023-12-02 13:43:25,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:43:25,980 INFO L225 Difference]: With dead ends: 670 [2023-12-02 13:43:25,980 INFO L226 Difference]: Without dead ends: 406 [2023-12-02 13:43:25,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 167 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 93.8s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:43:25,981 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 73 mSDsluCounter, 2427 mSDsCounter, 0 mSdLazyCounter, 2434 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 2442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:43:25,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 2581 Invalid, 2442 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2434 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2023-12-02 13:43:25,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-12-02 13:43:26,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 341. [2023-12-02 13:43:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 243 states have (on average 1.4691358024691359) internal successors, (357), 244 states have internal predecessors, (357), 79 states have call successors, (79), 18 states have call predecessors, (79), 18 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2023-12-02 13:43:26,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 514 transitions. [2023-12-02 13:43:26,108 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 514 transitions. Word has length 66 [2023-12-02 13:43:26,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:43:26,109 INFO L495 AbstractCegarLoop]: Abstraction has 341 states and 514 transitions. [2023-12-02 13:43:26,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 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 13:43:26,109 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 514 transitions. [2023-12-02 13:43:26,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 13:43:26,111 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:43:26,111 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 13:43:26,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:43:26,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:43:26,312 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:43:26,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:43:26,312 INFO L85 PathProgramCache]: Analyzing trace with hash -19702823, now seen corresponding path program 1 times [2023-12-02 13:43:26,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:43:26,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130431056] [2023-12-02 13:43:26,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:26,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:43:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:26,466 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:43:26,467 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:43:26,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130431056] [2023-12-02 13:43:26,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130431056] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:43:26,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993998724] [2023-12-02 13:43:26,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:43:26,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:43:26,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:43:26,473 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:43:26,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:43:26,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:43:26,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:43:26,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:43:26,762 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:43:26,762 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:43:26,800 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:43:26,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993998724] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:43:26,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1768972660] [2023-12-02 13:43:26,804 INFO L159 IcfgInterpreter]: Started Sifa with 58 locations of interest [2023-12-02 13:43:26,804 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:43:26,805 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:43:26,805 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:43:26,805 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:45:16,332 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:45:16,487 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 528 for LOIs [2023-12-02 13:45:18,017 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 452 for LOIs [2023-12-02 13:45:18,842 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 13:45:19,004 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 537 for LOIs [2023-12-02 13:45:20,624 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:46:14,721 WARN L293 SmtUtils]: Spent 10.25s on a formula simplification. DAG size of input: 569 DAG size of output: 564 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:47:06,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1768972660] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:47:06,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:47:06,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 13:47:06,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439062057] [2023-12-02 13:47:06,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:47:06,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 13:47:06,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:47:06,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 13:47:06,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:47:06,939 INFO L87 Difference]: Start difference. First operand 341 states and 514 transitions. Second operand has 33 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 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 13:47:22,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:47:22,747 INFO L93 Difference]: Finished difference Result 695 states and 1078 transitions. [2023-12-02 13:47:22,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 13:47:22,747 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 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 69 [2023-12-02 13:47:22,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:47:22,750 INFO L225 Difference]: With dead ends: 695 [2023-12-02 13:47:22,751 INFO L226 Difference]: Without dead ends: 431 [2023-12-02 13:47:22,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 171 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 106.3s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:47:22,753 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 58 mSDsluCounter, 2554 mSDsCounter, 0 mSdLazyCounter, 2865 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2707 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:47:22,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2707 Invalid, 2874 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2865 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2023-12-02 13:47:22,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-12-02 13:47:22,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 377. [2023-12-02 13:47:22,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 273 states have (on average 1.4615384615384615) internal successors, (399), 274 states have internal predecessors, (399), 82 states have call successors, (82), 21 states have call predecessors, (82), 21 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-02 13:47:22,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 562 transitions. [2023-12-02 13:47:22,926 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 562 transitions. Word has length 69 [2023-12-02 13:47:22,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:47:22,926 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 562 transitions. [2023-12-02 13:47:22,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.736842105263158) internal successors, (33), 18 states have internal predecessors, (33), 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 13:47:22,926 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 562 transitions. [2023-12-02 13:47:22,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 13:47:22,928 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:47:22,928 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:47:22,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:47:23,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:47:23,129 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:47:23,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:47:23,129 INFO L85 PathProgramCache]: Analyzing trace with hash 1980809203, now seen corresponding path program 1 times [2023-12-02 13:47:23,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:47:23,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486689597] [2023-12-02 13:47:23,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:23,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:47:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:23,250 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:47:23,250 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:47:23,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486689597] [2023-12-02 13:47:23,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486689597] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:47:23,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956009395] [2023-12-02 13:47:23,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:47:23,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:47:23,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:47:23,252 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:47:23,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:47:23,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:47:23,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:47:23,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:47:23,565 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:47:23,565 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:47:23,618 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:47:23,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956009395] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:47:23,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1615696177] [2023-12-02 13:47:23,621 INFO L159 IcfgInterpreter]: Started Sifa with 57 locations of interest [2023-12-02 13:47:23,622 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:47:23,622 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:47:23,622 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:47:23,622 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:48:15,739 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:48:15,895 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 13:48:16,057 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:49:08,893 WARN L293 SmtUtils]: Spent 8.80s on a formula simplification. DAG size of input: 493 DAG size of output: 493 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:49:51,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1615696177] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:49:51,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:49:51,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 13:49:51,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794619376] [2023-12-02 13:49:51,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:49:51,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 13:49:51,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:49:51,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 13:49:51,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 13:49:51,557 INFO L87 Difference]: Start difference. First operand 377 states and 562 transitions. Second operand has 32 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 states have internal predecessors, (38), 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 13:50:01,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:50:01,954 INFO L93 Difference]: Finished difference Result 709 states and 1093 transitions. [2023-12-02 13:50:01,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 13:50:01,955 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 states have internal predecessors, (38), 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 68 [2023-12-02 13:50:01,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:50:01,957 INFO L225 Difference]: With dead ends: 709 [2023-12-02 13:50:01,958 INFO L226 Difference]: Without dead ends: 445 [2023-12-02 13:50:01,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 169 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 95.5s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 13:50:01,959 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 84 mSDsluCounter, 2407 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 2556 SdHoareTripleChecker+Invalid, 2411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:50:01,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 2556 Invalid, 2411 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2403 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2023-12-02 13:50:01,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2023-12-02 13:50:02,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 397. [2023-12-02 13:50:02,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 293 states have (on average 1.4641638225255973) internal successors, (429), 294 states have internal predecessors, (429), 82 states have call successors, (82), 21 states have call predecessors, (82), 21 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-02 13:50:02,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 592 transitions. [2023-12-02 13:50:02,130 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 592 transitions. Word has length 68 [2023-12-02 13:50:02,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:50:02,130 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 592 transitions. [2023-12-02 13:50:02,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 1.5833333333333333) internal successors, (38), 23 states have internal predecessors, (38), 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 13:50:02,130 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 592 transitions. [2023-12-02 13:50:02,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 13:50:02,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:50:02,132 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] [2023-12-02 13:50:02,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:50:02,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:50:02,333 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:50:02,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:50:02,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1228962274, now seen corresponding path program 1 times [2023-12-02 13:50:02,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:50:02,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217088281] [2023-12-02 13:50:02,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:50:02,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:50:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:50:02,454 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 13:50:02,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:50:02,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217088281] [2023-12-02 13:50:02,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217088281] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:50:02,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955682882] [2023-12-02 13:50:02,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:50:02,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:50:02,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:50:02,456 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:50:02,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 13:50:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:50:02,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:50:02,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:50:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:50:02,753 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:50:02,804 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 13:50:02,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955682882] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:50:02,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [807830893] [2023-12-02 13:50:02,808 INFO L159 IcfgInterpreter]: Started Sifa with 53 locations of interest [2023-12-02 13:50:02,808 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:50:02,808 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:50:02,809 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:50:02,809 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:50:49,887 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:50:50,043 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 461 for LOIs [2023-12-02 13:50:52,054 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 247 for LOIs [2023-12-02 13:50:55,577 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 223 for LOIs [2023-12-02 13:50:55,732 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 245 for LOIs [2023-12-02 13:51:03,444 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 261 for LOIs [2023-12-02 13:51:03,630 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 261 for LOIs [2023-12-02 13:51:03,880 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 240 for LOIs [2023-12-02 13:51:04,028 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:51:24,206 WARN L293 SmtUtils]: Spent 5.82s on a formula simplification. DAG size of input: 461 DAG size of output: 461 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:51:33,239 WARN L293 SmtUtils]: Spent 8.81s on a formula simplification. DAG size of input: 491 DAG size of output: 487 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:52:47,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [807830893] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:52:47,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:52:47,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [6, 5, 5] total 59 [2023-12-02 13:52:47,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371528932] [2023-12-02 13:52:47,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:52:47,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-12-02 13:52:47,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:52:47,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-12-02 13:52:47,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=3233, Unknown=0, NotChecked=0, Total=3422 [2023-12-02 13:52:47,837 INFO L87 Difference]: Start difference. First operand 397 states and 592 transitions. Second operand has 51 states, 32 states have (on average 1.0625) internal successors, (34), 30 states have internal predecessors, (34), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 13:53:10,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:53:10,888 INFO L93 Difference]: Finished difference Result 822 states and 1267 transitions. [2023-12-02 13:53:10,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2023-12-02 13:53:10,888 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 32 states have (on average 1.0625) internal successors, (34), 30 states have internal predecessors, (34), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 71 [2023-12-02 13:53:10,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:53:10,892 INFO L225 Difference]: With dead ends: 822 [2023-12-02 13:53:10,892 INFO L226 Difference]: Without dead ends: 558 [2023-12-02 13:53:10,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 159 SyntacticMatches, 2 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 106.4s TimeCoverageRelationStatistics Valid=208, Invalid=3452, Unknown=0, NotChecked=0, Total=3660 [2023-12-02 13:53:10,896 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 203 mSDsluCounter, 3674 mSDsCounter, 0 mSdLazyCounter, 6139 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 3853 SdHoareTripleChecker+Invalid, 6180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 6139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:53:10,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 3853 Invalid, 6180 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [41 Valid, 6139 Invalid, 0 Unknown, 0 Unchecked, 19.9s Time] [2023-12-02 13:53:10,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2023-12-02 13:53:11,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 459. [2023-12-02 13:53:11,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 341 states have (on average 1.4545454545454546) internal successors, (496), 342 states have internal predecessors, (496), 91 states have call successors, (91), 28 states have call predecessors, (91), 26 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2023-12-02 13:53:11,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 677 transitions. [2023-12-02 13:53:11,113 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 677 transitions. Word has length 71 [2023-12-02 13:53:11,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:53:11,113 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 677 transitions. [2023-12-02 13:53:11,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 32 states have (on average 1.0625) internal successors, (34), 30 states have internal predecessors, (34), 14 states have call successors, (14), 8 states have call predecessors, (14), 6 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-02 13:53:11,113 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 677 transitions. [2023-12-02 13:53:11,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 13:53:11,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:53:11,115 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:53:11,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 13:53:11,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:53:11,316 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:53:11,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:53:11,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1162670479, now seen corresponding path program 1 times [2023-12-02 13:53:11,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:53:11,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803686869] [2023-12-02 13:53:11,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:53:11,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:53:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:53:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:53:11,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:53:11,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803686869] [2023-12-02 13:53:11,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803686869] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:53:11,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991062950] [2023-12-02 13:53:11,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:53:11,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:53:11,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:53:11,496 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:53:11,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85b8203c-e38b-47c8-8a60-78bde987287d/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 13:53:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:53:11,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:53:11,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:53:11,808 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:53:11,808 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:53:11,856 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 13:53:11,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991062950] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:53:11,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [689892908] [2023-12-02 13:53:11,859 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2023-12-02 13:53:11,859 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:53:11,860 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:53:11,860 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:53:11,860 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs