./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec4_product25.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/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_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec4_product25.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/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_b809740d-6887-48bb-8481-c174300fbf85/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 4aad45d78970842948dd8f2d4a23b330a7c7a053ef8846b1af27e637f96c3ae7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:13:57,604 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:13:57,668 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:13:57,672 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:13:57,673 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:13:57,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:13:57,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:13:57,698 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:13:57,698 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:13:57,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:13:57,700 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:13:57,700 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:13:57,701 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:13:57,701 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:13:57,702 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:13:57,702 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:13:57,703 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:13:57,704 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:13:57,704 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:13:57,705 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:13:57,705 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:13:57,706 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:13:57,706 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:13:57,707 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:13:57,707 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:13:57,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:13:57,708 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:13:57,708 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:13:57,708 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:13:57,709 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:13:57,709 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:13:57,709 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:13:57,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:13:57,710 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:13:57,710 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:13:57,710 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:13:57,711 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:13:57,711 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:13:57,711 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:13:57,711 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:13:57,711 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:13:57,712 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:13:57,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:13:57,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:13:57,712 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:13:57,712 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:13:57,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:13:57,713 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_b809740d-6887-48bb-8481-c174300fbf85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4aad45d78970842948dd8f2d4a23b330a7c7a053ef8846b1af27e637f96c3ae7 [2023-12-02 13:13:57,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:13:57,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:13:57,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:13:57,972 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:13:57,973 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:13:57,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec4_product25.cil.c [2023-12-02 13:14:00,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:14:01,171 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:14:01,172 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/sv-benchmarks/c/product-lines/email_spec4_product25.cil.c [2023-12-02 13:14:01,192 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/data/785b1cd62/63db47e56e6c4b309ec6883e58ed887e/FLAG285d01aee [2023-12-02 13:14:01,208 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/data/785b1cd62/63db47e56e6c4b309ec6883e58ed887e [2023-12-02 13:14:01,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:14:01,213 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:14:01,214 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:14:01,214 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:14:01,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:14:01,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:01,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e21f000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01, skipping insertion in model container [2023-12-02 13:14:01,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:01,294 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:14:01,805 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_b809740d-6887-48bb-8481-c174300fbf85/sv-benchmarks/c/product-lines/email_spec4_product25.cil.c[63576,63589] [2023-12-02 13:14:01,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:14:01,827 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:14:01,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-12-02 13:14:01,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [66] [2023-12-02 13:14:01,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [432] [2023-12-02 13:14:01,840 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [550] [2023-12-02 13:14:01,841 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [900] [2023-12-02 13:14:01,841 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1301] [2023-12-02 13:14:01,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignForward_spec.i","") [1613] [2023-12-02 13:14:01,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1641] [2023-12-02 13:14:01,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1860] [2023-12-02 13:14:01,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1895] [2023-12-02 13:14:01,843 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2957] [2023-12-02 13:14:01,947 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_b809740d-6887-48bb-8481-c174300fbf85/sv-benchmarks/c/product-lines/email_spec4_product25.cil.c[63576,63589] [2023-12-02 13:14:01,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:14:01,982 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:14:01,991 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:14:01,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01 WrapperNode [2023-12-02 13:14:01,992 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:14:01,993 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:14:01,993 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:14:01,993 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:14:02,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:02,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:02,104 INFO L138 Inliner]: procedures = 130, calls = 218, calls flagged for inlining = 60, calls inlined = 57, statements flattened = 1086 [2023-12-02 13:14:02,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:14:02,105 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:14:02,105 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:14:02,105 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:14:02,115 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:02,115 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:02,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:02,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:02,165 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:02,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:02,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:02,190 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:02,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:14:02,204 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:14:02,204 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:14:02,204 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:14:02,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01" (1/1) ... [2023-12-02 13:14:02,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:14:02,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:14:02,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:14:02,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:14:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 13:14:02,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 13:14:02,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 13:14:02,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 13:14:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 13:14:02,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 13:14:02,280 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2023-12-02 13:14:02,280 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2023-12-02 13:14:02,281 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 13:14:02,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 13:14:02,282 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 13:14:02,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 13:14:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 13:14:02,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 13:14:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 13:14:02,283 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 13:14:02,283 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 13:14:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 13:14:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 13:14:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 13:14:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 13:14:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 13:14:02,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 13:14:02,284 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 13:14:02,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 13:14:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:14:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 13:14:02,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 13:14:02,285 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 13:14:02,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 13:14:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 13:14:02,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 13:14:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 13:14:02,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 13:14:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 13:14:02,286 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 13:14:02,286 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 13:14:02,287 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 13:14:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 13:14:02,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 13:14:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 13:14:02,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 13:14:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:14:02,287 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 13:14:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 13:14:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 13:14:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 13:14:02,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:14:02,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:14:02,482 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:14:02,484 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:14:03,306 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:14:03,876 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:14:03,876 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:14:03,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:14:03 BoogieIcfgContainer [2023-12-02 13:14:03,878 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:14:03,881 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:14:03,881 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:14:03,884 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:14:03,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:14:01" (1/3) ... [2023-12-02 13:14:03,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414912c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:14:03, skipping insertion in model container [2023-12-02 13:14:03,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:01" (2/3) ... [2023-12-02 13:14:03,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@414912c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:14:03, skipping insertion in model container [2023-12-02 13:14:03,886 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:14:03" (3/3) ... [2023-12-02 13:14:03,887 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec4_product25.cil.c [2023-12-02 13:14:03,907 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:14:03,908 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:14:03,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:14:03,986 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;@4a529308, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:14:03,986 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:14:03,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 110 states have internal predecessors, (141), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-02 13:14:04,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 13:14:04,007 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:14:04,008 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:14:04,008 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:14:04,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:14:04,014 INFO L85 PathProgramCache]: Analyzing trace with hash 667904341, now seen corresponding path program 1 times [2023-12-02 13:14:04,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:14:04,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124723892] [2023-12-02 13:14:04,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:14:04,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:14:04,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:14:04,347 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:14:04,348 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:14:04,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124723892] [2023-12-02 13:14:04,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124723892] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:14:04,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:14:04,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:14:04,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070775958] [2023-12-02 13:14:04,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:14:04,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:14:04,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:14:04,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:14:04,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:14:04,393 INFO L87 Difference]: Start difference. First operand has 187 states, 107 states have (on average 1.3177570093457944) internal successors, (141), 110 states have internal predecessors, (141), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 13:14:04,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:14:04,531 INFO L93 Difference]: Finished difference Result 282 states and 377 transitions. [2023-12-02 13:14:04,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:14:04,534 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 65 [2023-12-02 13:14:04,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:14:04,547 INFO L225 Difference]: With dead ends: 282 [2023-12-02 13:14:04,547 INFO L226 Difference]: Without dead ends: 184 [2023-12-02 13:14:04,552 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 13:14:04,556 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:14:04,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 212 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:14:04,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-12-02 13:14:04,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-12-02 13:14:04,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 105 states have (on average 1.2857142857142858) internal successors, (135), 107 states have internal predecessors, (135), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-02 13:14:04,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 246 transitions. [2023-12-02 13:14:04,618 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 246 transitions. Word has length 65 [2023-12-02 13:14:04,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:14:04,620 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 246 transitions. [2023-12-02 13:14:04,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 13:14:04,621 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 246 transitions. [2023-12-02 13:14:04,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 13:14:04,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:14:04,626 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:14:04,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:14:04,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:14:04,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:14:04,627 INFO L85 PathProgramCache]: Analyzing trace with hash 487121133, now seen corresponding path program 1 times [2023-12-02 13:14:04,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:14:04,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423853781] [2023-12-02 13:14:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:14:04,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:14:04,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:14:04,847 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:14:04,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:14:04,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423853781] [2023-12-02 13:14:04,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423853781] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:14:04,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:14:04,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:14:04,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293374132] [2023-12-02 13:14:04,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:14:04,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:14:04,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:14:04,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:14:04,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:14:04,853 INFO L87 Difference]: Start difference. First operand 184 states and 246 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 13:14:04,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:14:04,984 INFO L93 Difference]: Finished difference Result 278 states and 362 transitions. [2023-12-02 13:14:04,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:14:04,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 66 [2023-12-02 13:14:04,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:14:04,989 INFO L225 Difference]: With dead ends: 278 [2023-12-02 13:14:04,989 INFO L226 Difference]: Without dead ends: 186 [2023-12-02 13:14:04,991 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 13:14:04,993 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 0 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:14:04,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 417 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:14:04,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-12-02 13:14:05,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-12-02 13:14:05,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 56 states have call successors, (56), 22 states have call predecessors, (56), 22 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-02 13:14:05,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 248 transitions. [2023-12-02 13:14:05,019 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 248 transitions. Word has length 66 [2023-12-02 13:14:05,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:14:05,020 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 248 transitions. [2023-12-02 13:14:05,020 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 13:14:05,020 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 248 transitions. [2023-12-02 13:14:05,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 13:14:05,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:14:05,024 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:14:05,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:14:05,025 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:14:05,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:14:05,026 INFO L85 PathProgramCache]: Analyzing trace with hash -341734870, now seen corresponding path program 1 times [2023-12-02 13:14:05,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:14:05,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805169269] [2023-12-02 13:14:05,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:14:05,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:14:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:14:05,168 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:14:05,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:14:05,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805169269] [2023-12-02 13:14:05,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805169269] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:14:05,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:14:05,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:14:05,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557654028] [2023-12-02 13:14:05,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:14:05,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:14:05,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:14:05,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:14:05,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:14:05,172 INFO L87 Difference]: Start difference. First operand 186 states and 248 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 13:14:05,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:14:05,312 INFO L93 Difference]: Finished difference Result 407 states and 563 transitions. [2023-12-02 13:14:05,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:14:05,313 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 71 [2023-12-02 13:14:05,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:14:05,316 INFO L225 Difference]: With dead ends: 407 [2023-12-02 13:14:05,316 INFO L226 Difference]: Without dead ends: 239 [2023-12-02 13:14:05,318 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 13:14:05,319 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 59 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:14:05,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 420 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:14:05,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2023-12-02 13:14:05,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 234. [2023-12-02 13:14:05,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 141 states have (on average 1.3617021276595744) internal successors, (192), 143 states have internal predecessors, (192), 70 states have call successors, (70), 22 states have call predecessors, (70), 22 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-02 13:14:05,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 331 transitions. [2023-12-02 13:14:05,347 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 331 transitions. Word has length 71 [2023-12-02 13:14:05,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:14:05,348 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 331 transitions. [2023-12-02 13:14:05,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-12-02 13:14:05,349 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 331 transitions. [2023-12-02 13:14:05,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 13:14:05,351 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:14:05,351 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:14:05,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:14:05,352 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:14:05,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:14:05,353 INFO L85 PathProgramCache]: Analyzing trace with hash -542013129, now seen corresponding path program 1 times [2023-12-02 13:14:05,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:14:05,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179744099] [2023-12-02 13:14:05,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:14:05,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:14:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:14:05,546 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:14:05,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:14:05,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179744099] [2023-12-02 13:14:05,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179744099] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:14:05,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [470274932] [2023-12-02 13:14:05,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:14:05,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:14:05,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:14:05,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:14:05,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:14:05,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:14:05,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:14:05,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:14:05,936 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:14:05,937 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:14:05,998 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:14:05,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [470274932] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:14:05,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [990871063] [2023-12-02 13:14:06,021 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-12-02 13:14:06,021 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:14:06,025 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:14:06,029 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:14:06,030 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:14:50,569 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:14:50,725 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 13:14:50,954 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:15:45,926 WARN L293 SmtUtils]: Spent 8.93s on a formula simplification. DAG size of input: 494 DAG size of output: 494 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:16:00,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [990871063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:16:00,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:16:00,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 13:16:00,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425163530] [2023-12-02 13:16:00,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:16:00,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 13:16:00,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:16:00,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 13:16:00,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 13:16:00,008 INFO L87 Difference]: Start difference. First operand 234 states and 331 transitions. Second operand has 24 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 13:16:13,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:13,489 INFO L93 Difference]: Finished difference Result 515 states and 762 transitions. [2023-12-02 13:16:13,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 13:16:13,490 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 72 [2023-12-02 13:16:13,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:13,492 INFO L225 Difference]: With dead ends: 515 [2023-12-02 13:16:13,492 INFO L226 Difference]: Without dead ends: 299 [2023-12-02 13:16:13,494 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 72.2s TimeCoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-12-02 13:16:13,494 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 113 mSDsluCounter, 2659 mSDsCounter, 0 mSdLazyCounter, 2346 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 2356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:13,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 2885 Invalid, 2356 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2346 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2023-12-02 13:16:13,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2023-12-02 13:16:13,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 257. [2023-12-02 13:16:13,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 163 states have (on average 1.3803680981595092) internal successors, (225), 165 states have internal predecessors, (225), 70 states have call successors, (70), 23 states have call predecessors, (70), 23 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-02 13:16:13,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 364 transitions. [2023-12-02 13:16:13,574 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 364 transitions. Word has length 72 [2023-12-02 13:16:13,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:13,574 INFO L495 AbstractCegarLoop]: Abstraction has 257 states and 364 transitions. [2023-12-02 13:16:13,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.25) internal successors, (36), 15 states have internal predecessors, (36), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 13:16:13,574 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 364 transitions. [2023-12-02 13:16:13,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 13:16:13,577 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:13,577 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:16:13,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:16:13,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:16:13,778 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:13,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:13,778 INFO L85 PathProgramCache]: Analyzing trace with hash 250253368, now seen corresponding path program 1 times [2023-12-02 13:16:13,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:16:13,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390084532] [2023-12-02 13:16:13,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:13,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:16:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:13,866 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 13:16:13,866 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:16:13,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390084532] [2023-12-02 13:16:13,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390084532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:16:13,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:16:13,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:16:13,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529681608] [2023-12-02 13:16:13,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:16:13,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:16:13,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:16:13,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:16:13,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:16:13,868 INFO L87 Difference]: Start difference. First operand 257 states and 364 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 13:16:14,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:14,091 INFO L93 Difference]: Finished difference Result 617 states and 908 transitions. [2023-12-02 13:16:14,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:16:14,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 77 [2023-12-02 13:16:14,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:14,095 INFO L225 Difference]: With dead ends: 617 [2023-12-02 13:16:14,095 INFO L226 Difference]: Without dead ends: 384 [2023-12-02 13:16:14,096 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 13:16:14,097 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 57 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:14,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 429 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:16:14,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2023-12-02 13:16:14,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 379. [2023-12-02 13:16:14,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 254 states have (on average 1.437007874015748) internal successors, (365), 256 states have internal predecessors, (365), 101 states have call successors, (101), 23 states have call predecessors, (101), 23 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-02 13:16:14,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 566 transitions. [2023-12-02 13:16:14,240 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 566 transitions. Word has length 77 [2023-12-02 13:16:14,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:14,240 INFO L495 AbstractCegarLoop]: Abstraction has 379 states and 566 transitions. [2023-12-02 13:16:14,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-12-02 13:16:14,241 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 566 transitions. [2023-12-02 13:16:14,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 13:16:14,244 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:14,244 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:16:14,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:16:14,244 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:14,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:14,245 INFO L85 PathProgramCache]: Analyzing trace with hash -2111644088, now seen corresponding path program 1 times [2023-12-02 13:16:14,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:16:14,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550079952] [2023-12-02 13:16:14,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:14,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:16:14,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:14,378 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 13:16:14,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:16:14,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550079952] [2023-12-02 13:16:14,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550079952] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:16:14,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063206349] [2023-12-02 13:16:14,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:14,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:16:14,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:16:14,381 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:16:14,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:16:14,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:14,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:16:14,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:16:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 13:16:14,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:16:14,738 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 13:16:14,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063206349] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:16:14,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [350037089] [2023-12-02 13:16:14,742 INFO L159 IcfgInterpreter]: Started Sifa with 63 locations of interest [2023-12-02 13:16:14,743 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:16:14,743 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:16:14,743 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:16:14,744 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:17:12,142 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:17:12,301 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 475 for LOIs [2023-12-02 13:17:14,378 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:17:34,913 WARN L293 SmtUtils]: Spent 6.17s on a formula simplification. DAG size of input: 475 DAG size of output: 476 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:17:44,083 WARN L293 SmtUtils]: Spent 9.01s on a formula simplification. DAG size of input: 505 DAG size of output: 501 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:18:21,797 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification. DAG size of input: 498 DAG size of output: 498 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:18:50,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [350037089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:18:50,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:18:50,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 13:18:50,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236953672] [2023-12-02 13:18:50,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:18:50,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 13:18:50,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:18:50,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 13:18:50,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:18:50,257 INFO L87 Difference]: Start difference. First operand 379 states and 566 transitions. Second operand has 28 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2023-12-02 13:19:01,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:19:01,448 INFO L93 Difference]: Finished difference Result 776 states and 1189 transitions. [2023-12-02 13:19:01,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 13:19:01,449 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) Word has length 78 [2023-12-02 13:19:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:19:01,452 INFO L225 Difference]: With dead ends: 776 [2023-12-02 13:19:01,453 INFO L226 Difference]: Without dead ends: 460 [2023-12-02 13:19:01,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 95.8s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 13:19:01,455 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 126 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2767 SdHoareTripleChecker+Invalid, 2379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:19:01,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2767 Invalid, 2379 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2023-12-02 13:19:01,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-12-02 13:19:01,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 393. [2023-12-02 13:19:01,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 266 states have (on average 1.4360902255639099) internal successors, (382), 268 states have internal predecessors, (382), 102 states have call successors, (102), 24 states have call predecessors, (102), 24 states have return successors, (101), 100 states have call predecessors, (101), 101 states have call successors, (101) [2023-12-02 13:19:01,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 585 transitions. [2023-12-02 13:19:01,570 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 585 transitions. Word has length 78 [2023-12-02 13:19:01,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:19:01,571 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 585 transitions. [2023-12-02 13:19:01,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 8 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (14), 8 states have call predecessors, (14), 8 states have call successors, (14) [2023-12-02 13:19:01,571 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 585 transitions. [2023-12-02 13:19:01,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 13:19:01,573 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:19:01,574 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:19:01,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:19:01,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:19:01,774 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:19:01,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:19:01,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1831507135, now seen corresponding path program 1 times [2023-12-02 13:19:01,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:19:01,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173810318] [2023-12-02 13:19:01,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:19:01,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:19:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:19:01,890 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:19:01,890 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:19:01,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173810318] [2023-12-02 13:19:01,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173810318] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:19:01,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367275908] [2023-12-02 13:19:01,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:19:01,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:19:01,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:19:01,892 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:19:01,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:19:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:19:02,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:19:02,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:19:02,218 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:19:02,218 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:19:02,273 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:19:02,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367275908] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:19:02,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [193043530] [2023-12-02 13:19:02,277 INFO L159 IcfgInterpreter]: Started Sifa with 68 locations of interest [2023-12-02 13:19:02,278 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:19:02,278 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:19:02,278 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:19:02,279 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:20:35,408 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:20:35,570 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 542 for LOIs [2023-12-02 13:20:37,358 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 551 for LOIs [2023-12-02 13:20:39,135 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 466 for LOIs [2023-12-02 13:20:39,883 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 13:20:40,099 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:21:35,896 WARN L293 SmtUtils]: Spent 10.89s on a formula simplification. DAG size of input: 579 DAG size of output: 574 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:22:22,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [193043530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:22:22,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:22:22,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 13:22:22,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365593414] [2023-12-02 13:22:22,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:22:22,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 13:22:22,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:22:22,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 13:22:22,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1283, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:22:22,705 INFO L87 Difference]: Start difference. First operand 393 states and 585 transitions. Second operand has 33 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-12-02 13:22:50,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:22:50,910 INFO L93 Difference]: Finished difference Result 809 states and 1236 transitions. [2023-12-02 13:22:50,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-12-02 13:22:50,911 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) Word has length 81 [2023-12-02 13:22:50,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:22:50,914 INFO L225 Difference]: With dead ends: 809 [2023-12-02 13:22:50,914 INFO L226 Difference]: Without dead ends: 493 [2023-12-02 13:22:50,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 110.1s TimeCoverageRelationStatistics Valid=134, Invalid=1426, Unknown=0, NotChecked=0, Total=1560 [2023-12-02 13:22:50,916 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 97 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 3530 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 3386 SdHoareTripleChecker+Invalid, 3543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:22:50,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 3386 Invalid, 3543 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 3530 Invalid, 0 Unknown, 0 Unchecked, 20.4s Time] [2023-12-02 13:22:50,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-12-02 13:22:51,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 429. [2023-12-02 13:22:51,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 296 states have (on average 1.4324324324324325) internal successors, (424), 298 states have internal predecessors, (424), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-02 13:22:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 633 transitions. [2023-12-02 13:22:51,071 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 633 transitions. Word has length 81 [2023-12-02 13:22:51,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:22:51,071 INFO L495 AbstractCegarLoop]: Abstraction has 429 states and 633 transitions. [2023-12-02 13:22:51,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.0526315789473686) internal successors, (39), 18 states have internal predecessors, (39), 10 states have call successors, (19), 6 states have call predecessors, (19), 6 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-12-02 13:22:51,072 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 633 transitions. [2023-12-02 13:22:51,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 13:22:51,073 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:22:51,073 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:22:51,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 13:22:51,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:22:51,274 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:22:51,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:22:51,274 INFO L85 PathProgramCache]: Analyzing trace with hash 63787590, now seen corresponding path program 1 times [2023-12-02 13:22:51,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:22:51,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590960350] [2023-12-02 13:22:51,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:22:51,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:22:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:22:51,385 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:22:51,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:22:51,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590960350] [2023-12-02 13:22:51,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590960350] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:22:51,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135005597] [2023-12-02 13:22:51,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:22:51,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:22:51,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:22:51,387 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:22:51,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:22:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:22:51,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:22:51,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:22:51,700 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:22:51,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:22:51,763 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-02 13:22:51,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135005597] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:22:51,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [997216493] [2023-12-02 13:22:51,767 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2023-12-02 13:22:51,768 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:22:51,768 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:22:51,768 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:22:51,768 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:23:50,502 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:23:50,659 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2023-12-02 13:23:50,871 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:24:46,345 WARN L293 SmtUtils]: Spent 9.36s on a formula simplification. DAG size of input: 503 DAG size of output: 503 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:25:30,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [997216493] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:25:30,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:25:30,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 13:25:30,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899058586] [2023-12-02 13:25:30,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:25:30,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 13:25:30,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:25:30,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 13:25:30,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 13:25:30,902 INFO L87 Difference]: Start difference. First operand 429 states and 633 transitions. Second operand has 32 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 23 states have internal predecessors, (44), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 13:25:45,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:25:45,863 INFO L93 Difference]: Finished difference Result 815 states and 1239 transitions. [2023-12-02 13:25:45,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 13:25:45,864 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 23 states have internal predecessors, (44), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) Word has length 80 [2023-12-02 13:25:45,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:25:45,867 INFO L225 Difference]: With dead ends: 815 [2023-12-02 13:25:45,867 INFO L226 Difference]: Without dead ends: 499 [2023-12-02 13:25:45,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 103.3s TimeCoverageRelationStatistics Valid=159, Invalid=1247, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 13:25:45,869 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 89 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 2496 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 2505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:25:45,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 2876 Invalid, 2505 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2496 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-12-02 13:25:45,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2023-12-02 13:25:46,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 449. [2023-12-02 13:25:46,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 316 states have (on average 1.4367088607594938) internal successors, (454), 318 states have internal predecessors, (454), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-02 13:25:46,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 663 transitions. [2023-12-02 13:25:46,121 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 663 transitions. Word has length 80 [2023-12-02 13:25:46,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:25:46,122 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 663 transitions. [2023-12-02 13:25:46,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 23 states have internal predecessors, (44), 7 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (13), 7 states have call predecessors, (13), 7 states have call successors, (13) [2023-12-02 13:25:46,122 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 663 transitions. [2023-12-02 13:25:46,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 13:25:46,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:25:46,125 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:25:46,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:25:46,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:25:46,332 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:25:46,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:25:46,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1629664686, now seen corresponding path program 1 times [2023-12-02 13:25:46,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:25:46,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429026235] [2023-12-02 13:25:46,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:25:46,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:25:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:25:47,344 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-02 13:25:47,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:25:47,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429026235] [2023-12-02 13:25:47,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429026235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:25:47,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:25:47,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2023-12-02 13:25:47,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359949061] [2023-12-02 13:25:47,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:25:47,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-02 13:25:47,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:25:47,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-02 13:25:47,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2023-12-02 13:25:47,346 INFO L87 Difference]: Start difference. First operand 449 states and 663 transitions. Second operand has 21 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 8 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 13:25:48,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:25:48,890 INFO L93 Difference]: Finished difference Result 516 states and 756 transitions. [2023-12-02 13:25:48,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-02 13:25:48,891 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 8 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 83 [2023-12-02 13:25:48,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:25:48,894 INFO L225 Difference]: With dead ends: 516 [2023-12-02 13:25:48,895 INFO L226 Difference]: Without dead ends: 513 [2023-12-02 13:25:48,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=159, Invalid=1031, Unknown=0, NotChecked=0, Total=1190 [2023-12-02 13:25:48,896 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 254 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:25:48,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 1948 Invalid, 2037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-02 13:25:48,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-12-02 13:25:49,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 511. [2023-12-02 13:25:49,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 350 states have (on average 1.4114285714285715) internal successors, (494), 353 states have internal predecessors, (494), 129 states have call successors, (129), 32 states have call predecessors, (129), 31 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2023-12-02 13:25:49,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 749 transitions. [2023-12-02 13:25:49,105 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 749 transitions. Word has length 83 [2023-12-02 13:25:49,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:25:49,106 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 749 transitions. [2023-12-02 13:25:49,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 8 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-12-02 13:25:49,106 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 749 transitions. [2023-12-02 13:25:49,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-12-02 13:25:49,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:25:49,109 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:25:49,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 13:25:49,109 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:25:49,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:25:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash -13619933, now seen corresponding path program 1 times [2023-12-02 13:25:49,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:25:49,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468342346] [2023-12-02 13:25:49,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:25:49,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:25:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:25:49,343 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-02 13:25:49,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:25:49,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468342346] [2023-12-02 13:25:49,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468342346] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:25:49,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:25:49,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 13:25:49,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226123060] [2023-12-02 13:25:49,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:25:49,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 13:25:49,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:25:49,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 13:25:49,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:25:49,346 INFO L87 Difference]: Start difference. First operand 511 states and 749 transitions. Second operand has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 13:25:49,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:25:49,739 INFO L93 Difference]: Finished difference Result 639 states and 919 transitions. [2023-12-02 13:25:49,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 13:25:49,740 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) Word has length 125 [2023-12-02 13:25:49,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:25:49,745 INFO L225 Difference]: With dead ends: 639 [2023-12-02 13:25:49,745 INFO L226 Difference]: Without dead ends: 511 [2023-12-02 13:25:49,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:25:49,746 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 78 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:25:49,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 928 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 13:25:49,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2023-12-02 13:25:49,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 511. [2023-12-02 13:25:49,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 350 states have (on average 1.4057142857142857) internal successors, (492), 353 states have internal predecessors, (492), 129 states have call successors, (129), 32 states have call predecessors, (129), 31 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2023-12-02 13:25:49,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 747 transitions. [2023-12-02 13:25:49,953 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 747 transitions. Word has length 125 [2023-12-02 13:25:49,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:25:49,954 INFO L495 AbstractCegarLoop]: Abstraction has 511 states and 747 transitions. [2023-12-02 13:25:49,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (23), 3 states have call predecessors, (23), 2 states have call successors, (23) [2023-12-02 13:25:49,954 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 747 transitions. [2023-12-02 13:25:49,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-02 13:25:49,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:25:49,958 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:25:49,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 13:25:49,958 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:25:49,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:25:49,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1261178781, now seen corresponding path program 1 times [2023-12-02 13:25:49,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:25:49,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25394404] [2023-12-02 13:25:49,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:25:49,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:25:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:25:50,301 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-12-02 13:25:50,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:25:50,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25394404] [2023-12-02 13:25:50,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25394404] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:25:50,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:25:50,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 13:25:50,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282622462] [2023-12-02 13:25:50,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:25:50,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 13:25:50,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:25:50,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 13:25:50,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:25:50,304 INFO L87 Difference]: Start difference. First operand 511 states and 747 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 13:25:51,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:25:51,132 INFO L93 Difference]: Finished difference Result 667 states and 934 transitions. [2023-12-02 13:25:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 13:25:51,133 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 130 [2023-12-02 13:25:51,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:25:51,138 INFO L225 Difference]: With dead ends: 667 [2023-12-02 13:25:51,138 INFO L226 Difference]: Without dead ends: 582 [2023-12-02 13:25:51,139 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-02 13:25:51,140 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 248 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 441 mSolverCounterSat, 224 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 224 IncrementalHoareTripleChecker+Valid, 441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:25:51,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 421 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [224 Valid, 441 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 13:25:51,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2023-12-02 13:25:51,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 575. [2023-12-02 13:25:51,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 385 states have (on average 1.3792207792207791) internal successors, (531), 390 states have internal predecessors, (531), 146 states have call successors, (146), 43 states have call predecessors, (146), 43 states have return successors, (145), 141 states have call predecessors, (145), 143 states have call successors, (145) [2023-12-02 13:25:51,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 822 transitions. [2023-12-02 13:25:51,447 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 822 transitions. Word has length 130 [2023-12-02 13:25:51,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:25:51,448 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 822 transitions. [2023-12-02 13:25:51,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 13:25:51,448 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 822 transitions. [2023-12-02 13:25:51,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2023-12-02 13:25:51,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:25:51,451 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:25:51,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 13:25:51,451 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__KeysErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:25:51,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:25:51,451 INFO L85 PathProgramCache]: Analyzing trace with hash 79968234, now seen corresponding path program 1 times [2023-12-02 13:25:51,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:25:51,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444946532] [2023-12-02 13:25:51,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:25:51,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:25:51,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:25:51,620 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-02 13:25:51,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:25:51,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444946532] [2023-12-02 13:25:51,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444946532] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:25:51,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374121197] [2023-12-02 13:25:51,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:25:51,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:25:51,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:25:51,622 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:25:51,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b809740d-6887-48bb-8481-c174300fbf85/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 13:25:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:25:52,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 1458 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:25:52,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:25:52,110 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-02 13:25:52,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:25:52,278 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-12-02 13:25:52,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [374121197] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:25:52,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [768558491] [2023-12-02 13:25:52,283 INFO L159 IcfgInterpreter]: Started Sifa with 103 locations of interest [2023-12-02 13:25:52,283 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:25:52,283 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:25:52,284 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:25:52,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:26:54,162 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 13:26:54,317 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 247 for LOIs [2023-12-02 13:27:00,427 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 475 for LOIs [2023-12-02 13:27:02,486 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 285 for LOIs [2023-12-02 13:27:15,382 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 277 for LOIs [2023-12-02 13:27:15,745 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Keys with input of size 234 for LOIs [2023-12-02 13:27:26,603 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 207 for LOIs [2023-12-02 13:27:26,698 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 299 for LOIs [2023-12-02 13:27:28,417 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 207 for LOIs [2023-12-02 13:27:28,532 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 272 for LOIs [2023-12-02 13:27:29,775 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 223 for LOIs [2023-12-02 13:27:29,934 INFO L197 IcfgInterpreter]: Interpreting procedure isSigned with input of size 207 for LOIs [2023-12-02 13:27:30,062 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:27:52,966 WARN L293 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 475 DAG size of output: 476 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:28:02,348 WARN L293 SmtUtils]: Spent 9.19s on a formula simplification. DAG size of input: 505 DAG size of output: 500 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)