./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product14.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_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/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_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/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_8837a0f9-a9ed-4fae-bac2-3169ad45038b/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 bcfdffd5743ab46e6f5628bffe82029f1c91fa1aa61e5033c157235a6e9c82be --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:32:28,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:32:28,088 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 19:32:28,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:32:28,094 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:32:28,119 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:32:28,119 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:32:28,120 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:32:28,120 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:32:28,121 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:32:28,121 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:32:28,122 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:32:28,122 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:32:28,123 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:32:28,123 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:32:28,124 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:32:28,125 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:32:28,125 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:32:28,126 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:32:28,126 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:32:28,127 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:32:28,128 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:32:28,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:32:28,129 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:32:28,129 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 19:32:28,130 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:32:28,130 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 19:32:28,131 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:32:28,131 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:32:28,132 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:32:28,132 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:32:28,133 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 19:32:28,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:32:28,133 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:32:28,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:32:28,134 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:32:28,134 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:32:28,134 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:32:28,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:32:28,134 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:32:28,135 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:32:28,135 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:32:28,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:32:28,135 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:32:28,136 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:32:28,136 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:32:28,136 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:32:28,136 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_8837a0f9-a9ed-4fae-bac2-3169ad45038b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcfdffd5743ab46e6f5628bffe82029f1c91fa1aa61e5033c157235a6e9c82be [2023-12-02 19:32:28,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:32:28,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:32:28,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:32:28,358 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:32:28,358 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:32:28,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec6_product14.cil.c [2023-12-02 19:32:31,082 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:32:31,347 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:32:31,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/sv-benchmarks/c/product-lines/email_spec6_product14.cil.c [2023-12-02 19:32:31,369 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/data/280dee63f/b936f42b47b34a56a3067669dfa8e022/FLAG505a561a7 [2023-12-02 19:32:31,383 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/data/280dee63f/b936f42b47b34a56a3067669dfa8e022 [2023-12-02 19:32:31,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:32:31,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:32:31,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:32:31,389 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:32:31,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:32:31,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:32:31" (1/1) ... [2023-12-02 19:32:31,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@333a3a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:31, skipping insertion in model container [2023-12-02 19:32:31,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:32:31" (1/1) ... [2023-12-02 19:32:31,485 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:32:31,855 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_8837a0f9-a9ed-4fae-bac2-3169ad45038b/sv-benchmarks/c/product-lines/email_spec6_product14.cil.c[43937,43950] [2023-12-02 19:32:31,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:32:31,953 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:32:31,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-02 19:32:31,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [368] [2023-12-02 19:32:31,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [419] [2023-12-02 19:32:31,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1488] [2023-12-02 19:32:31,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1523] [2023-12-02 19:32:31,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1803] [2023-12-02 19:32:31,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2019] [2023-12-02 19:32:31,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2036] [2023-12-02 19:32:31,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2045] [2023-12-02 19:32:31,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2151] [2023-12-02 19:32:31,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2517] [2023-12-02 19:32:32,031 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_8837a0f9-a9ed-4fae-bac2-3169ad45038b/sv-benchmarks/c/product-lines/email_spec6_product14.cil.c[43937,43950] [2023-12-02 19:32:32,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:32:32,090 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:32:32,096 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:32:32,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32 WrapperNode [2023-12-02 19:32:32,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:32:32,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:32:32,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:32:32,097 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:32:32,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32" (1/1) ... [2023-12-02 19:32:32,133 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32" (1/1) ... [2023-12-02 19:32:32,182 INFO L138 Inliner]: procedures = 126, calls = 212, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 904 [2023-12-02 19:32:32,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:32:32,183 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:32:32,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:32:32,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:32:32,193 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32" (1/1) ... [2023-12-02 19:32:32,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32" (1/1) ... [2023-12-02 19:32:32,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32" (1/1) ... [2023-12-02 19:32:32,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32" (1/1) ... [2023-12-02 19:32:32,225 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32" (1/1) ... [2023-12-02 19:32:32,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32" (1/1) ... [2023-12-02 19:32:32,242 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32" (1/1) ... [2023-12-02 19:32:32,248 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32" (1/1) ... [2023-12-02 19:32:32,258 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:32:32,259 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:32:32,259 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:32:32,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:32:32,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32" (1/1) ... [2023-12-02 19:32:32,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:32:32,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:32:32,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:32:32,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:32:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 19:32:32,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 19:32:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 19:32:32,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 19:32:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 19:32:32,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 19:32:32,345 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 19:32:32,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 19:32:32,347 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 19:32:32,347 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 19:32:32,347 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 19:32:32,347 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 19:32:32,348 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 19:32:32,348 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 19:32:32,348 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 19:32:32,348 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 19:32:32,348 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 19:32:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 19:32:32,349 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 19:32:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 19:32:32,349 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 19:32:32,349 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 19:32:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 19:32:32,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:32:32,350 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 19:32:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 19:32:32,351 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 19:32:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 19:32:32,351 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 19:32:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 19:32:32,351 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 19:32:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 19:32:32,351 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 19:32:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 19:32:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-12-02 19:32:32,352 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-12-02 19:32:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 19:32:32,352 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 19:32:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 19:32:32,352 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 19:32:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 19:32:32,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 19:32:32,352 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 19:32:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 19:32:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:32:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 19:32:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 19:32:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 19:32:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 19:32:32,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:32:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:32:32,533 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:32:32,535 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:32:33,214 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:32:33,759 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:32:33,759 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:32:33,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:32:33 BoogieIcfgContainer [2023-12-02 19:32:33,761 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:32:33,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:32:33,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:32:33,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:32:33,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:32:31" (1/3) ... [2023-12-02 19:32:33,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ac4ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:32:33, skipping insertion in model container [2023-12-02 19:32:33,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:32:32" (2/3) ... [2023-12-02 19:32:33,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ac4ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:32:33, skipping insertion in model container [2023-12-02 19:32:33,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:32:33" (3/3) ... [2023-12-02 19:32:33,769 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product14.cil.c [2023-12-02 19:32:33,789 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:32:33,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:32:33,842 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:32:33,849 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;@71356ac2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:32:33,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:32:33,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 185 states, 104 states have (on average 1.3269230769230769) internal successors, (138), 109 states have internal predecessors, (138), 56 states have call successors, (56), 23 states have call predecessors, (56), 23 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2023-12-02 19:32:33,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 19:32:33,871 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:32:33,872 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:32:33,872 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:32:33,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:32:33,876 INFO L85 PathProgramCache]: Analyzing trace with hash 831501354, now seen corresponding path program 1 times [2023-12-02 19:32:33,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:32:33,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860257615] [2023-12-02 19:32:33,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:32:33,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:32:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:32:34,222 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 19:32:34,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:32:34,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860257615] [2023-12-02 19:32:34,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860257615] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:32:34,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:32:34,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 19:32:34,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418762895] [2023-12-02 19:32:34,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:32:34,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 19:32:34,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:32:34,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 19:32:34,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:32:34,263 INFO L87 Difference]: Start difference. First operand has 185 states, 104 states have (on average 1.3269230769230769) internal successors, (138), 109 states have internal predecessors, (138), 56 states have call successors, (56), 23 states have call predecessors, (56), 23 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 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:32:34,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:32:34,381 INFO L93 Difference]: Finished difference Result 278 states and 371 transitions. [2023-12-02 19:32:34,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 19:32:34,384 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 79 [2023-12-02 19:32:34,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:32:34,397 INFO L225 Difference]: With dead ends: 278 [2023-12-02 19:32:34,397 INFO L226 Difference]: Without dead ends: 182 [2023-12-02 19:32:34,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 19:32:34,406 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:32:34,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 215 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:32:34,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-02 19:32:34,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-12-02 19:32:34,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 102 states have (on average 1.2941176470588236) internal successors, (132), 106 states have internal predecessors, (132), 56 states have call successors, (56), 23 states have call predecessors, (56), 23 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-02 19:32:34,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 243 transitions. [2023-12-02 19:32:34,460 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 243 transitions. Word has length 79 [2023-12-02 19:32:34,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:32:34,462 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 243 transitions. [2023-12-02 19:32:34,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:32:34,463 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 243 transitions. [2023-12-02 19:32:34,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 19:32:34,468 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:32:34,468 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:32:34,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:32:34,468 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:32:34,469 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:32:34,469 INFO L85 PathProgramCache]: Analyzing trace with hash -978422002, now seen corresponding path program 1 times [2023-12-02 19:32:34,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:32:34,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231200725] [2023-12-02 19:32:34,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:32:34,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:32:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:32:34,714 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 19:32:34,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:32:34,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231200725] [2023-12-02 19:32:34,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231200725] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:32:34,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:32:34,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:32:34,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61572222] [2023-12-02 19:32:34,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:32:34,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:32:34,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:32:34,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:32:34,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:32:34,719 INFO L87 Difference]: Start difference. First operand 182 states and 243 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:32:34,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:32:34,836 INFO L93 Difference]: Finished difference Result 274 states and 356 transitions. [2023-12-02 19:32:34,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:32:34,837 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 80 [2023-12-02 19:32:34,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:32:34,840 INFO L225 Difference]: With dead ends: 274 [2023-12-02 19:32:34,840 INFO L226 Difference]: Without dead ends: 184 [2023-12-02 19:32:34,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:32:34,844 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 0 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:32:34,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 423 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:32:34,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-12-02 19:32:34,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-12-02 19:32:34,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 104 states have (on average 1.2884615384615385) internal successors, (134), 108 states have internal predecessors, (134), 56 states have call successors, (56), 23 states have call predecessors, (56), 23 states have return successors, (55), 54 states have call predecessors, (55), 55 states have call successors, (55) [2023-12-02 19:32:34,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 245 transitions. [2023-12-02 19:32:34,869 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 245 transitions. Word has length 80 [2023-12-02 19:32:34,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:32:34,870 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 245 transitions. [2023-12-02 19:32:34,870 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:32:34,871 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 245 transitions. [2023-12-02 19:32:34,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 19:32:34,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:32:34,875 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, 1, 1, 1, 1] [2023-12-02 19:32:34,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:32:34,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:32:34,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:32:34,877 INFO L85 PathProgramCache]: Analyzing trace with hash 2033354209, now seen corresponding path program 1 times [2023-12-02 19:32:34,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:32:34,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953892733] [2023-12-02 19:32:34,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:32:34,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:32:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:32:35,002 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 19:32:35,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:32:35,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953892733] [2023-12-02 19:32:35,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953892733] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:32:35,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:32:35,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:32:35,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845882291] [2023-12-02 19:32:35,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:32:35,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:32:35,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:32:35,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:32:35,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:32:35,005 INFO L87 Difference]: Start difference. First operand 184 states and 245 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:32:35,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:32:35,123 INFO L93 Difference]: Finished difference Result 403 states and 557 transitions. [2023-12-02 19:32:35,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:32:35,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 85 [2023-12-02 19:32:35,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:32:35,127 INFO L225 Difference]: With dead ends: 403 [2023-12-02 19:32:35,127 INFO L226 Difference]: Without dead ends: 237 [2023-12-02 19:32:35,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:32:35,129 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 59 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:32:35,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 435 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:32:35,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-12-02 19:32:35,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 232. [2023-12-02 19:32:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 138 states have (on average 1.3695652173913044) internal successors, (189), 142 states have internal predecessors, (189), 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 19:32:35,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 328 transitions. [2023-12-02 19:32:35,153 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 328 transitions. Word has length 85 [2023-12-02 19:32:35,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:32:35,153 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 328 transitions. [2023-12-02 19:32:35,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-02 19:32:35,154 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 328 transitions. [2023-12-02 19:32:35,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 19:32:35,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:32:35,156 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, 1, 1, 1, 1, 1] [2023-12-02 19:32:35,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:32:35,157 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:32:35,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:32:35,157 INFO L85 PathProgramCache]: Analyzing trace with hash 318237201, now seen corresponding path program 1 times [2023-12-02 19:32:35,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:32:35,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833616134] [2023-12-02 19:32:35,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:32:35,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:32:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:32:35,351 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 19:32:35,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:32:35,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833616134] [2023-12-02 19:32:35,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833616134] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:32:35,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554564986] [2023-12-02 19:32:35,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:32:35,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:32:35,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:32:35,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:32:35,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:32:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:32:35,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:32:35,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:32:35,798 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 19:32:35,798 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:32:35,870 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 19:32:35,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554564986] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:32:35,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1024814370] [2023-12-02 19:32:35,894 INFO L159 IcfgInterpreter]: Started Sifa with 73 locations of interest [2023-12-02 19:32:35,895 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:32:35,899 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:32:35,904 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:32:35,905 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:33:21,225 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 19:33:21,457 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 19:33:21,622 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:34:18,400 WARN L293 SmtUtils]: Spent 9.22s on a formula simplification. DAG size of input: 502 DAG size of output: 502 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:34:27,889 WARN L293 SmtUtils]: Spent 9.17s on a formula simplification. DAG size of input: 503 DAG size of output: 502 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:34:38,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1024814370] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:34:38,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:34:38,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 19:34:38,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430043953] [2023-12-02 19:34:38,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:34:38,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 19:34:38,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:34:38,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 19:34:38,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2023-12-02 19:34:38,710 INFO L87 Difference]: Start difference. First operand 232 states and 328 transitions. Second operand has 24 states, 16 states have (on average 2.75) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-12-02 19:34:53,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:34:53,592 INFO L93 Difference]: Finished difference Result 511 states and 756 transitions. [2023-12-02 19:34:53,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 19:34:53,593 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.75) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 86 [2023-12-02 19:34:53,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:34:53,595 INFO L225 Difference]: With dead ends: 511 [2023-12-02 19:34:53,595 INFO L226 Difference]: Without dead ends: 297 [2023-12-02 19:34:53,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 80.4s TimeCoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-12-02 19:34:53,598 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 85 mSDsluCounter, 2929 mSDsCounter, 0 mSdLazyCounter, 2599 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 3159 SdHoareTripleChecker+Invalid, 2609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-12-02 19:34:53,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 3159 Invalid, 2609 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2599 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-12-02 19:34:53,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2023-12-02 19:34:53,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 255. [2023-12-02 19:34:53,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 160 states have (on average 1.3875) internal successors, (222), 164 states have internal predecessors, (222), 70 states have call successors, (70), 24 states have call predecessors, (70), 24 states have return successors, (69), 68 states have call predecessors, (69), 69 states have call successors, (69) [2023-12-02 19:34:53,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 361 transitions. [2023-12-02 19:34:53,685 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 361 transitions. Word has length 86 [2023-12-02 19:34:53,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:34:53,686 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 361 transitions. [2023-12-02 19:34:53,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.75) internal successors, (44), 15 states have internal predecessors, (44), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-12-02 19:34:53,687 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 361 transitions. [2023-12-02 19:34:53,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 19:34:53,689 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:34:53,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:34:53,699 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 19:34:53,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:34:53,895 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:34:53,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:34:53,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1670289923, now seen corresponding path program 1 times [2023-12-02 19:34:53,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:34:53,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372378293] [2023-12-02 19:34:53,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:53,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:34:53,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:53,963 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 19:34:53,963 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:34:53,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372378293] [2023-12-02 19:34:53,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372378293] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:34:53,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:34:53,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:34:53,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235005796] [2023-12-02 19:34:53,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:34:53,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:34:53,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:34:53,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:34:53,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:34:53,965 INFO L87 Difference]: Start difference. First operand 255 states and 361 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 19:34:54,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:34:54,173 INFO L93 Difference]: Finished difference Result 613 states and 902 transitions. [2023-12-02 19:34:54,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:34:54,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 91 [2023-12-02 19:34:54,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:34:54,177 INFO L225 Difference]: With dead ends: 613 [2023-12-02 19:34:54,178 INFO L226 Difference]: Without dead ends: 382 [2023-12-02 19:34:54,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:34:54,180 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 57 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:34:54,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 438 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:34:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2023-12-02 19:34:54,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 377. [2023-12-02 19:34:54,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 251 states have (on average 1.4422310756972112) internal successors, (362), 255 states have internal predecessors, (362), 101 states have call successors, (101), 24 states have call predecessors, (101), 24 states have return successors, (100), 99 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-02 19:34:54,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 563 transitions. [2023-12-02 19:34:54,284 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 563 transitions. Word has length 91 [2023-12-02 19:34:54,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:34:54,285 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 563 transitions. [2023-12-02 19:34:54,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-12-02 19:34:54,285 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 563 transitions. [2023-12-02 19:34:54,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 19:34:54,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:34:54,288 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:34:54,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 19:34:54,288 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:34:54,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:34:54,289 INFO L85 PathProgramCache]: Analyzing trace with hash 2067161520, now seen corresponding path program 1 times [2023-12-02 19:34:54,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:34:54,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319121696] [2023-12-02 19:34:54,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:54,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:34:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:54,390 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 19:34:54,390 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:34:54,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319121696] [2023-12-02 19:34:54,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319121696] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:34:54,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543732571] [2023-12-02 19:34:54,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:34:54,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:34:54,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:34:54,392 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:34:54,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 19:34:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:34:54,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 1036 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:34:54,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:34:54,690 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 19:34:54,691 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:34:54,751 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 19:34:54,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543732571] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:34:54,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1395950728] [2023-12-02 19:34:54,755 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2023-12-02 19:34:54,755 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:34:54,756 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:34:54,756 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:34:54,756 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:35:55,950 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 19:35:56,176 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 249 for LOIs [2023-12-02 19:35:56,440 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:36:52,600 WARN L293 SmtUtils]: Spent 9.06s on a formula simplification. DAG size of input: 506 DAG size of output: 506 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:37:02,800 WARN L293 SmtUtils]: Spent 9.89s on a formula simplification. DAG size of input: 507 DAG size of output: 506 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:37:28,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1395950728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:37:28,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:37:28,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 19:37:28,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262909856] [2023-12-02 19:37:28,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:37:28,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 19:37:28,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:37:28,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 19:37:28,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=941, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 19:37:28,766 INFO L87 Difference]: Start difference. First operand 377 states and 563 transitions. Second operand has 28 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2023-12-02 19:37:43,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:37:43,793 INFO L93 Difference]: Finished difference Result 772 states and 1183 transitions. [2023-12-02 19:37:43,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 19:37:43,794 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 92 [2023-12-02 19:37:43,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:37:43,797 INFO L225 Difference]: With dead ends: 772 [2023-12-02 19:37:43,797 INFO L226 Difference]: Without dead ends: 458 [2023-12-02 19:37:43,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 95.7s TimeCoverageRelationStatistics Valid=120, Invalid=1002, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 19:37:43,799 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 126 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 2547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-12-02 19:37:43,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2784 Invalid, 2547 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2023-12-02 19:37:43,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-12-02 19:37:43,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 391. [2023-12-02 19:37:43,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 263 states have (on average 1.44106463878327) internal successors, (379), 267 states have internal predecessors, (379), 102 states have call successors, (102), 25 states have call predecessors, (102), 25 states have return successors, (101), 100 states have call predecessors, (101), 101 states have call successors, (101) [2023-12-02 19:37:43,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 582 transitions. [2023-12-02 19:37:43,922 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 582 transitions. Word has length 92 [2023-12-02 19:37:43,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:37:43,923 INFO L495 AbstractCegarLoop]: Abstraction has 391 states and 582 transitions. [2023-12-02 19:37:43,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 8 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2023-12-02 19:37:43,923 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 582 transitions. [2023-12-02 19:37:43,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 19:37:43,925 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:37:43,925 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:37:43,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 19:37:44,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:37:44,131 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:37:44,132 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:37:44,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1756278585, now seen corresponding path program 1 times [2023-12-02 19:37:44,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:37:44,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946550868] [2023-12-02 19:37:44,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:44,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:37:44,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:44,300 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 19:37:44,300 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:37:44,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946550868] [2023-12-02 19:37:44,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946550868] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:37:44,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316393119] [2023-12-02 19:37:44,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:37:44,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:37:44,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:37:44,301 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:37:44,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 19:37:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:37:44,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:37:44,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:37:44,592 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 19:37:44,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:37:44,654 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 19:37:44,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316393119] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:37:44,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [70708343] [2023-12-02 19:37:44,659 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2023-12-02 19:37:44,659 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:37:44,659 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:37:44,660 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:37:44,660 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:39:10,767 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 19:39:11,007 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 550 for LOIs [2023-12-02 19:39:12,832 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 235 for LOIs [2023-12-02 19:39:13,081 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 474 for LOIs [2023-12-02 19:39:13,849 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 19:39:14,012 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:40:11,614 WARN L293 SmtUtils]: Spent 10.85s on a formula simplification. DAG size of input: 587 DAG size of output: 582 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:40:22,880 WARN L293 SmtUtils]: Spent 10.87s on a formula simplification. DAG size of input: 588 DAG size of output: 582 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:40:58,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [70708343] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:40:58,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:40:58,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 19:40:58,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95321642] [2023-12-02 19:40:58,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:40:58,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 19:40:58,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:40:58,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 19:40:58,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1222, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 19:40:58,318 INFO L87 Difference]: Start difference. First operand 391 states and 582 transitions. Second operand has 32 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2023-12-02 19:41:21,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:41:21,119 INFO L93 Difference]: Finished difference Result 801 states and 1224 transitions. [2023-12-02 19:41:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 19:41:21,119 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) Word has length 95 [2023-12-02 19:41:21,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:41:21,122 INFO L225 Difference]: With dead ends: 801 [2023-12-02 19:41:21,122 INFO L226 Difference]: Without dead ends: 487 [2023-12-02 19:41:21,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 107.6s TimeCoverageRelationStatistics Valid=115, Invalid=1291, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 19:41:21,124 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 122 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 3649 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 3496 SdHoareTripleChecker+Invalid, 3661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 3649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:41:21,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 3496 Invalid, 3661 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 3649 Invalid, 0 Unknown, 0 Unchecked, 19.1s Time] [2023-12-02 19:41:21,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2023-12-02 19:41:21,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 427. [2023-12-02 19:41:21,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 293 states have (on average 1.4368600682593857) internal successors, (421), 297 states have internal predecessors, (421), 105 states have call successors, (105), 28 states have call predecessors, (105), 28 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-02 19:41:21,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 630 transitions. [2023-12-02 19:41:21,300 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 630 transitions. Word has length 95 [2023-12-02 19:41:21,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:41:21,300 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 630 transitions. [2023-12-02 19:41:21,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 19 states have (on average 2.473684210526316) internal successors, (47), 18 states have internal predecessors, (47), 10 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (19), 10 states have call predecessors, (19), 10 states have call successors, (19) [2023-12-02 19:41:21,301 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 630 transitions. [2023-12-02 19:41:21,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 19:41:21,302 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:41:21,302 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:41:21,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 19:41:21,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:41:21,503 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:41:21,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:41:21,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1498229268, now seen corresponding path program 1 times [2023-12-02 19:41:21,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:41:21,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962851305] [2023-12-02 19:41:21,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:41:21,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:41:21,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:41:21,651 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 19:41:21,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:41:21,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962851305] [2023-12-02 19:41:21,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962851305] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:41:21,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245692128] [2023-12-02 19:41:21,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:41:21,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:41:21,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:41:21,653 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:41:21,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 19:41:21,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:41:21,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:41:21,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:41:21,990 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 19:41:21,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:41:22,054 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 19:41:22,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245692128] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:41:22,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1849555415] [2023-12-02 19:41:22,058 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2023-12-02 19:41:22,058 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:41:22,059 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:41:22,059 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:41:22,059 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:42:21,900 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 19:42:22,119 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 19:42:22,285 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:43:19,121 WARN L293 SmtUtils]: Spent 9.32s on a formula simplification. DAG size of input: 510 DAG size of output: 510 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:43:28,919 WARN L293 SmtUtils]: Spent 9.49s on a formula simplification. DAG size of input: 511 DAG size of output: 510 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 19:44:10,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1849555415] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:44:10,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:44:10,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 19:44:10,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363605696] [2023-12-02 19:44:10,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:44:10,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 19:44:10,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:44:10,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 19:44:10,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1178, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 19:44:10,367 INFO L87 Difference]: Start difference. First operand 427 states and 630 transitions. Second operand has 32 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 23 states have internal predecessors, (52), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-12-02 19:44:26,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:44:26,922 INFO L93 Difference]: Finished difference Result 811 states and 1233 transitions. [2023-12-02 19:44:26,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 19:44:26,923 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 23 states have internal predecessors, (52), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) Word has length 94 [2023-12-02 19:44:26,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:44:26,926 INFO L225 Difference]: With dead ends: 811 [2023-12-02 19:44:26,926 INFO L226 Difference]: Without dead ends: 497 [2023-12-02 19:44:26,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 111.2s TimeCoverageRelationStatistics Valid=159, Invalid=1247, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 19:44:26,929 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 157 mSDsluCounter, 2838 mSDsCounter, 0 mSdLazyCounter, 2755 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 3028 SdHoareTripleChecker+Invalid, 2764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:44:26,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 3028 Invalid, 2764 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2755 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2023-12-02 19:44:26,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2023-12-02 19:44:27,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 447. [2023-12-02 19:44:27,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 313 states have (on average 1.4408945686900958) internal successors, (451), 317 states have internal predecessors, (451), 105 states have call successors, (105), 28 states have call predecessors, (105), 28 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-02 19:44:27,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 660 transitions. [2023-12-02 19:44:27,134 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 660 transitions. Word has length 94 [2023-12-02 19:44:27,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:44:27,134 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 660 transitions. [2023-12-02 19:44:27,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 2.1666666666666665) internal successors, (52), 23 states have internal predecessors, (52), 7 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (16), 7 states have call predecessors, (16), 7 states have call successors, (16) [2023-12-02 19:44:27,135 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 660 transitions. [2023-12-02 19:44:27,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-02 19:44:27,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:44:27,138 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:44:27,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 19:44:27,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:44:27,338 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:44:27,339 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:44:27,339 INFO L85 PathProgramCache]: Analyzing trace with hash 1004995354, now seen corresponding path program 1 times [2023-12-02 19:44:27,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:44:27,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373403308] [2023-12-02 19:44:27,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:44:27,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:44:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:44:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 19:44:28,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:44:28,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373403308] [2023-12-02 19:44:28,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373403308] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:44:28,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938292200] [2023-12-02 19:44:28,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:44:28,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:44:28,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:44:28,094 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:44:28,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 19:44:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:44:28,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 19:44:28,367 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:44:28,428 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 19:44:28,429 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:44:28,516 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-02 19:44:28,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938292200] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:44:28,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [206764484] [2023-12-02 19:44:28,519 INFO L159 IcfgInterpreter]: Started Sifa with 77 locations of interest [2023-12-02 19:44:28,519 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:44:28,519 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:44:28,520 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:44:28,520 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 19:45:17,838 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 19:45:18,057 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 34 for LOIs [2023-12-02 19:45:18,168 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 16 for LOIs [2023-12-02 19:45:18,172 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 478 for LOIs [2023-12-02 19:45:19,649 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 38 for LOIs [2023-12-02 19:45:19,724 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing__wrappee__Encrypt with input of size 27 for LOIs [2023-12-02 19:45:21,213 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailEncryptionKey with input of size 19 for LOIs [2023-12-02 19:45:21,217 INFO L197 IcfgInterpreter]: Interpreting procedure getClientPrivateKey with input of size 19 for LOIs [2023-12-02 19:45:21,233 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 30 for LOIs [2023-12-02 19:45:21,241 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 104 for LOIs [2023-12-02 19:45:21,313 INFO L197 IcfgInterpreter]: Interpreting procedure isKeyPairValid with input of size 27 for LOIs [2023-12-02 19:45:21,330 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 15 for LOIs [2023-12-02 19:45:21,333 INFO L197 IcfgInterpreter]: Interpreting procedure getClientAddressBookSize with input of size 10 for LOIs [2023-12-02 19:45:21,341 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 19:46:25,542 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12635#(and (= |outgoing__wrappee__Encrypt_mail_#in~msg#1| 1) (= ~sent_encrypted~0 1) (<= |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_~tmp___0~2#1| 2147483647) (= |outgoing__wrappee__Encrypt_~msg#1| 1) (= |outgoing__wrappee__Encrypt_~pubkey~0#1| 0) (<= |outgoing__wrappee__Encrypt_incoming_#in~client#1| 2147483647) (<= 0 (+ ~__ste_email_encryptionKey0~0 2147483648)) (<= |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_#in~client#1| 2147483647) (= |outgoing__wrappee__Encrypt_~tmp___0~3#1| 0) (<= 0 (+ |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_~tmp___0~2#1| 2147483648)) (= |outgoing__wrappee__Encrypt_incoming_~msg#1| 1) (<= ~__ste_email_from0~0 2147483647) (<= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~tmp~7#1| 2147483647) (<= 0 (+ |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_~tmp~3#1| 2147483648)) (= ~__ste_email_isEncrypted0~0 1) (<= 0 (+ ~__ste_email_from0~0 2147483648)) (= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_#in~msg#1| 1) (= |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_~__cil_tmp6~0#1.offset| 0) (= |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_#in~msg#1| 1) (<= 0 (+ |outgoing__wrappee__Encrypt_~tmp~8#1| 2147483648)) (<= |outgoing__wrappee__Encrypt_incoming_~client#1| 2147483647) (= |old(~__ste_email_from0~0)| 0) (<= |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_~tmp~3#1| 2147483647) (<= 0 (+ ~__ste_email_to0~0 2147483648)) (<= 0 (+ |outgoing__wrappee__Encrypt_incoming_~client#1| 2147483648)) (<= |outgoing__wrappee__Encrypt_~tmp~8#1| 2147483647) (<= |outgoing__wrappee__Encrypt_~receiver~0#1| 2147483647) (= |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_~msg#1| 1) (<= 0 (+ |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_~client#1| 2147483648)) (<= 0 (+ |outgoing__wrappee__Encrypt_incoming_~__utac__ad__arg1~1#1| 2147483648)) (= |outgoing__wrappee__Encrypt_incoming_~__utac__ad__arg2~0#1| 1) (<= |outgoing__wrappee__Encrypt_incoming_~__utac__ad__arg1~1#1| 2147483647) (<= |outgoing__wrappee__Encrypt_mail_~tmp~6#1| 2147483647) (<= 0 (+ |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~tmp~7#1| 2147483648)) (= |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_~__cil_tmp6~0#1.base| 15) (= |outgoing__wrappee__Encrypt_findPublicKey_#res#1| 0) (= |outgoing__wrappee__Encrypt_mail_~__utac__ad__arg1~0#1| 1) (<= 0 (+ |outgoing__wrappee__Encrypt_incoming_#in~client#1| 2147483648)) (= |outgoing__wrappee__Encrypt_mail_~msg#1| 1) (= |outgoing__wrappee__Encrypt_outgoing__wrappee__Keys_~msg#1| 1) (<= ~__ste_email_to0~0 2147483647) (<= ~__ste_email_encryptionKey0~0 2147483647) (<= 0 (+ |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_#in~client#1| 2147483648)) (<= 0 (+ |outgoing__wrappee__Encrypt_~receiver~0#1| 2147483648)) (= |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_~tmp___1~1#1| 0) (<= 0 (+ |outgoing__wrappee__Encrypt_getClientId_#res#1| 2147483648)) (<= |outgoing__wrappee__Encrypt___utac_acc__EncryptDecrypt_spec__2_~client#1| 2147483647) (= |outgoing__wrappee__Encrypt_#in~msg#1| 1) (= |outgoing__wrappee__Encrypt_incoming_#in~msg#1| 1) (<= 0 (+ |outgoing__wrappee__Encrypt_mail_~tmp~6#1| 2147483648)) (<= |outgoing__wrappee__Encrypt_getClientId_#res#1| 2147483647))' at error location [2023-12-02 19:46:25,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-12-02 19:46:25,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 19:46:25,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 20 [2023-12-02 19:46:25,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441978645] [2023-12-02 19:46:25,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 19:46:25,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-02 19:46:25,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:46:25,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-02 19:46:25,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=8225, Unknown=0, NotChecked=0, Total=8556 [2023-12-02 19:46:25,547 INFO L87 Difference]: Start difference. First operand 447 states and 660 transitions. Second operand has 20 states, 17 states have (on average 6.588235294117647) internal successors, (112), 17 states have internal predecessors, (112), 13 states have call successors, (48), 5 states have call predecessors, (48), 3 states have return successors, (42), 12 states have call predecessors, (42), 12 states have call successors, (42) [2023-12-02 19:46:30,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:46:30,108 INFO L93 Difference]: Finished difference Result 1607 states and 2428 transitions. [2023-12-02 19:46:30,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 19:46:30,109 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 6.588235294117647) internal successors, (112), 17 states have internal predecessors, (112), 13 states have call successors, (48), 5 states have call predecessors, (48), 3 states have return successors, (42), 12 states have call predecessors, (42), 12 states have call successors, (42) Word has length 97 [2023-12-02 19:46:30,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:46:30,116 INFO L225 Difference]: With dead ends: 1607 [2023-12-02 19:46:30,116 INFO L226 Difference]: Without dead ends: 1249 [2023-12-02 19:46:30,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 214 SyntacticMatches, 2 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4211 ImplicationChecksByTransitivity, 66.4s TimeCoverageRelationStatistics Valid=573, Invalid=12999, Unknown=0, NotChecked=0, Total=13572 [2023-12-02 19:46:30,122 INFO L413 NwaCegarLoop]: 327 mSDtfsCounter, 1371 mSDsluCounter, 3710 mSDsCounter, 0 mSdLazyCounter, 3109 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1375 SdHoareTripleChecker+Valid, 4037 SdHoareTripleChecker+Invalid, 3720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 3109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:46:30,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1375 Valid, 4037 Invalid, 3720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 3109 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-02 19:46:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2023-12-02 19:46:30,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1175. [2023-12-02 19:46:30,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1175 states, 801 states have (on average 1.4032459425717854) internal successors, (1124), 814 states have internal predecessors, (1124), 307 states have call successors, (307), 65 states have call predecessors, (307), 66 states have return successors, (316), 299 states have call predecessors, (316), 299 states have call successors, (316) [2023-12-02 19:46:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 1747 transitions. [2023-12-02 19:46:30,723 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 1747 transitions. Word has length 97 [2023-12-02 19:46:30,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:46:30,724 INFO L495 AbstractCegarLoop]: Abstraction has 1175 states and 1747 transitions. [2023-12-02 19:46:30,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 6.588235294117647) internal successors, (112), 17 states have internal predecessors, (112), 13 states have call successors, (48), 5 states have call predecessors, (48), 3 states have return successors, (42), 12 states have call predecessors, (42), 12 states have call successors, (42) [2023-12-02 19:46:30,724 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 1747 transitions. [2023-12-02 19:46:30,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 19:46:30,729 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:46:30,730 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:46:30,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 19:46:30,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:46:30,930 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:46:30,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:46:30,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1052529687, now seen corresponding path program 1 times [2023-12-02 19:46:30,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:46:30,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820255263] [2023-12-02 19:46:30,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:30,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:46:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:32,253 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-02 19:46:32,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:46:32,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820255263] [2023-12-02 19:46:32,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820255263] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:46:32,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648000288] [2023-12-02 19:46:32,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:32,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:46:32,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:46:32,254 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:46:32,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 19:46:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:32,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 19:46:32,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:46:32,851 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-02 19:46:32,851 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 19:46:32,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648000288] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:46:32,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 19:46:32,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [17] total 25 [2023-12-02 19:46:32,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605572171] [2023-12-02 19:46:32,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:46:32,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 19:46:32,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:46:32,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 19:46:32,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=545, Unknown=0, NotChecked=0, Total=600 [2023-12-02 19:46:32,853 INFO L87 Difference]: Start difference. First operand 1175 states and 1747 transitions. Second operand has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 7 states have internal predecessors, (65), 5 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-02 19:46:34,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:46:34,593 INFO L93 Difference]: Finished difference Result 2136 states and 3132 transitions. [2023-12-02 19:46:34,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-02 19:46:34,593 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 7 states have internal predecessors, (65), 5 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 108 [2023-12-02 19:46:34,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:46:34,606 INFO L225 Difference]: With dead ends: 2136 [2023-12-02 19:46:34,606 INFO L226 Difference]: Without dead ends: 1976 [2023-12-02 19:46:34,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=106, Invalid=950, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 19:46:34,610 INFO L413 NwaCegarLoop]: 249 mSDtfsCounter, 478 mSDsluCounter, 1301 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:46:34,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1550 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-02 19:46:34,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2023-12-02 19:46:35,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1883. [2023-12-02 19:46:35,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1883 states, 1237 states have (on average 1.391269199676637) internal successors, (1721), 1292 states have internal predecessors, (1721), 516 states have call successors, (516), 126 states have call predecessors, (516), 129 states have return successors, (533), 473 states have call predecessors, (533), 498 states have call successors, (533) [2023-12-02 19:46:35,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1883 states to 1883 states and 2770 transitions. [2023-12-02 19:46:35,453 INFO L78 Accepts]: Start accepts. Automaton has 1883 states and 2770 transitions. Word has length 108 [2023-12-02 19:46:35,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:46:35,453 INFO L495 AbstractCegarLoop]: Abstraction has 1883 states and 2770 transitions. [2023-12-02 19:46:35,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.909090909090909) internal successors, (65), 7 states have internal predecessors, (65), 5 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2023-12-02 19:46:35,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1883 states and 2770 transitions. [2023-12-02 19:46:35,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-12-02 19:46:35,460 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:46:35,461 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:46:35,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-02 19:46:35,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8837a0f9-a9ed-4fae-bac2-3169ad45038b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 19:46:35,661 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:46:35,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:46:35,662 INFO L85 PathProgramCache]: Analyzing trace with hash 555173324, now seen corresponding path program 1 times [2023-12-02 19:46:35,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:46:35,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066896932] [2023-12-02 19:46:35,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:35,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:46:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:35,752 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 19:46:35,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:46:35,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066896932] [2023-12-02 19:46:35,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066896932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:46:35,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:46:35,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:46:35,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983161755] [2023-12-02 19:46:35,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:46:35,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:46:35,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:46:35,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:46:35,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:46:35,755 INFO L87 Difference]: Start difference. First operand 1883 states and 2770 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 19:46:37,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:46:37,087 INFO L93 Difference]: Finished difference Result 3853 states and 5778 transitions. [2023-12-02 19:46:37,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:46:37,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 128 [2023-12-02 19:46:37,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:46:37,103 INFO L225 Difference]: With dead ends: 3853 [2023-12-02 19:46:37,103 INFO L226 Difference]: Without dead ends: 2455 [2023-12-02 19:46:37,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:46:37,113 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 51 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:46:37,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 431 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:46:37,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2023-12-02 19:46:38,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2433. [2023-12-02 19:46:38,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2433 states, 1629 states have (on average 1.419889502762431) internal successors, (2313), 1699 states have internal predecessors, (2313), 674 states have call successors, (674), 126 states have call predecessors, (674), 129 states have return successors, (691), 616 states have call predecessors, (691), 656 states have call successors, (691) [2023-12-02 19:46:38,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3678 transitions. [2023-12-02 19:46:38,431 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3678 transitions. Word has length 128 [2023-12-02 19:46:38,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:46:38,431 INFO L495 AbstractCegarLoop]: Abstraction has 2433 states and 3678 transitions. [2023-12-02 19:46:38,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 19:46:38,432 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3678 transitions. [2023-12-02 19:46:38,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-12-02 19:46:38,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:46:38,449 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:46:38,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 19:46:38,449 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:46:38,449 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:46:38,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1967770673, now seen corresponding path program 1 times [2023-12-02 19:46:38,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:46:38,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646399809] [2023-12-02 19:46:38,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:38,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:46:38,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:38,533 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 19:46:38,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:46:38,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646399809] [2023-12-02 19:46:38,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646399809] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:46:38,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:46:38,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:46:38,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812462905] [2023-12-02 19:46:38,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:46:38,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:46:38,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:46:38,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:46:38,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:46:38,535 INFO L87 Difference]: Start difference. First operand 2433 states and 3678 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 19:46:40,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:46:40,364 INFO L93 Difference]: Finished difference Result 4801 states and 7368 transitions. [2023-12-02 19:46:40,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:46:40,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 129 [2023-12-02 19:46:40,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:46:40,385 INFO L225 Difference]: With dead ends: 4801 [2023-12-02 19:46:40,385 INFO L226 Difference]: Without dead ends: 3032 [2023-12-02 19:46:40,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:46:40,395 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 49 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:46:40,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 414 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:46:40,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2023-12-02 19:46:42,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 3021. [2023-12-02 19:46:42,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3021 states, 2055 states have (on average 1.4364963503649635) internal successors, (2952), 2125 states have internal predecessors, (2952), 836 states have call successors, (836), 126 states have call predecessors, (836), 129 states have return successors, (853), 778 states have call predecessors, (853), 818 states have call successors, (853) [2023-12-02 19:46:42,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3021 states to 3021 states and 4641 transitions. [2023-12-02 19:46:42,178 INFO L78 Accepts]: Start accepts. Automaton has 3021 states and 4641 transitions. Word has length 129 [2023-12-02 19:46:42,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:46:42,178 INFO L495 AbstractCegarLoop]: Abstraction has 3021 states and 4641 transitions. [2023-12-02 19:46:42,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 19:46:42,178 INFO L276 IsEmpty]: Start isEmpty. Operand 3021 states and 4641 transitions. [2023-12-02 19:46:42,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-12-02 19:46:42,186 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:46:42,187 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:46:42,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 19:46:42,187 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:46:42,187 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:46:42,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1563981043, now seen corresponding path program 1 times [2023-12-02 19:46:42,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:46:42,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842871078] [2023-12-02 19:46:42,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:42,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:46:42,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 19:46:42,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:46:42,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842871078] [2023-12-02 19:46:42,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842871078] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:46:42,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:46:42,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:46:42,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195895352] [2023-12-02 19:46:42,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:46:42,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:46:42,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:46:42,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:46:42,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:46:42,268 INFO L87 Difference]: Start difference. First operand 3021 states and 4641 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 19:46:44,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:46:44,676 INFO L93 Difference]: Finished difference Result 6171 states and 9631 transitions. [2023-12-02 19:46:44,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:46:44,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 130 [2023-12-02 19:46:44,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:46:44,696 INFO L225 Difference]: With dead ends: 6171 [2023-12-02 19:46:44,696 INFO L226 Difference]: Without dead ends: 3966 [2023-12-02 19:46:44,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:46:44,703 INFO L413 NwaCegarLoop]: 211 mSDtfsCounter, 47 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:46:44,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 414 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 19:46:44,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3966 states. [2023-12-02 19:46:47,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3966 to 3955. [2023-12-02 19:46:47,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3955 states, 2744 states have (on average 1.4522594752186588) internal successors, (3985), 2814 states have internal predecessors, (3985), 1081 states have call successors, (1081), 126 states have call predecessors, (1081), 129 states have return successors, (1098), 1023 states have call predecessors, (1098), 1063 states have call successors, (1098) [2023-12-02 19:46:47,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3955 states to 3955 states and 6164 transitions. [2023-12-02 19:46:47,191 INFO L78 Accepts]: Start accepts. Automaton has 3955 states and 6164 transitions. Word has length 130 [2023-12-02 19:46:47,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:46:47,192 INFO L495 AbstractCegarLoop]: Abstraction has 3955 states and 6164 transitions. [2023-12-02 19:46:47,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2023-12-02 19:46:47,192 INFO L276 IsEmpty]: Start isEmpty. Operand 3955 states and 6164 transitions. [2023-12-02 19:46:47,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-02 19:46:47,209 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:46:47,210 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:46:47,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 19:46:47,210 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:46:47,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:46:47,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1032582195, now seen corresponding path program 1 times [2023-12-02 19:46:47,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:46:47,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847469675] [2023-12-02 19:46:47,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:46:47,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:46:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:46:47,310 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 19:46:47,311 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:46:47,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847469675] [2023-12-02 19:46:47,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847469675] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:46:47,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:46:47,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:46:47,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196980642] [2023-12-02 19:46:47,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:46:47,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:46:47,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:46:47,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:46:47,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:46:47,313 INFO L87 Difference]: Start difference. First operand 3955 states and 6164 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24)