./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product34.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/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_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/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_a2937ab3-1deb-450d-96a3-22960538f360/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 4c8df6e468eecbce541189806946dc0233fe629a6f2a971a54d2c5d7914e97b3 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 18:12:13,921 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 18:12:13,982 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 18:12:13,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 18:12:13,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 18:12:14,010 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 18:12:14,011 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 18:12:14,011 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 18:12:14,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 18:12:14,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 18:12:14,013 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 18:12:14,013 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 18:12:14,014 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 18:12:14,014 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 18:12:14,015 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 18:12:14,015 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 18:12:14,016 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 18:12:14,017 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 18:12:14,017 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 18:12:14,018 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 18:12:14,018 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 18:12:14,019 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 18:12:14,020 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 18:12:14,020 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 18:12:14,021 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 18:12:14,021 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 18:12:14,021 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 18:12:14,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 18:12:14,022 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 18:12:14,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 18:12:14,023 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 18:12:14,023 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 18:12:14,024 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 18:12:14,024 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 18:12:14,024 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 18:12:14,024 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 18:12:14,025 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 18:12:14,025 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:12:14,025 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 18:12:14,025 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 18:12:14,026 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 18:12:14,026 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 18:12:14,026 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 18:12:14,026 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 18:12:14,027 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 18:12:14,027 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 18:12:14,027 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 18:12:14,027 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_a2937ab3-1deb-450d-96a3-22960538f360/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c8df6e468eecbce541189806946dc0233fe629a6f2a971a54d2c5d7914e97b3 [2023-12-02 18:12:14,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 18:12:14,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 18:12:14,264 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 18:12:14,266 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 18:12:14,266 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 18:12:14,267 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec6_product34.cil.c [2023-12-02 18:12:16,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 18:12:17,246 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 18:12:17,246 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/sv-benchmarks/c/product-lines/email_spec6_product34.cil.c [2023-12-02 18:12:17,270 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/data/0714b20e6/cc50d6587d554cb6b98666748211d907/FLAG3d17cd364 [2023-12-02 18:12:17,285 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/data/0714b20e6/cc50d6587d554cb6b98666748211d907 [2023-12-02 18:12:17,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 18:12:17,289 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 18:12:17,290 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 18:12:17,290 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 18:12:17,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 18:12:17,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:12:17" (1/1) ... [2023-12-02 18:12:17,297 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cccccf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:17, skipping insertion in model container [2023-12-02 18:12:17,297 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:12:17" (1/1) ... [2023-12-02 18:12:17,369 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 18:12:17,669 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_a2937ab3-1deb-450d-96a3-22960538f360/sv-benchmarks/c/product-lines/email_spec6_product34.cil.c[11485,11498] [2023-12-02 18:12:17,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:12:17,875 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 18:12:17,885 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2023-12-02 18:12:17,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [97] [2023-12-02 18:12:17,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [150] [2023-12-02 18:12:17,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [578] [2023-12-02 18:12:17,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [595] [2023-12-02 18:12:17,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [604] [2023-12-02 18:12:17,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [970] [2023-12-02 18:12:17,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1369] [2023-12-02 18:12:17,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1504] [2023-12-02 18:12:17,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2576] [2023-12-02 18:12:17,889 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2875] [2023-12-02 18:12:17,909 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_a2937ab3-1deb-450d-96a3-22960538f360/sv-benchmarks/c/product-lines/email_spec6_product34.cil.c[11485,11498] [2023-12-02 18:12:17,975 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 18:12:18,005 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 18:12:18,011 INFO L206 MainTranslator]: Completed translation [2023-12-02 18:12:18,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18 WrapperNode [2023-12-02 18:12:18,011 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 18:12:18,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 18:12:18,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 18:12:18,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 18:12:18,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18" (1/1) ... [2023-12-02 18:12:18,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18" (1/1) ... [2023-12-02 18:12:18,101 INFO L138 Inliner]: procedures = 135, calls = 244, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 1151 [2023-12-02 18:12:18,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 18:12:18,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 18:12:18,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 18:12:18,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 18:12:18,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18" (1/1) ... [2023-12-02 18:12:18,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18" (1/1) ... [2023-12-02 18:12:18,121 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18" (1/1) ... [2023-12-02 18:12:18,121 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18" (1/1) ... [2023-12-02 18:12:18,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18" (1/1) ... [2023-12-02 18:12:18,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18" (1/1) ... [2023-12-02 18:12:18,167 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18" (1/1) ... [2023-12-02 18:12:18,174 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18" (1/1) ... [2023-12-02 18:12:18,186 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 18:12:18,187 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 18:12:18,187 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 18:12:18,188 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 18:12:18,189 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18" (1/1) ... [2023-12-02 18:12:18,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 18:12:18,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:12:18,221 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 18:12:18,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 18:12:18,254 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 18:12:18,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 18:12:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 18:12:18,255 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 18:12:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 18:12:18,255 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 18:12:18,255 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 18:12:18,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 18:12:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 18:12:18,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 18:12:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 18:12:18,256 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 18:12:18,256 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 18:12:18,256 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 18:12:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 18:12:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 18:12:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 18:12:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 18:12:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 18:12:18,257 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 18:12:18,257 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 18:12:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 18:12:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 18:12:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 18:12:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 18:12:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 18:12:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 18:12:18,258 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 18:12:18,258 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 18:12:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 18:12:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 18:12:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 18:12:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 18:12:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 18:12:18,259 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 18:12:18,259 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 18:12:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 18:12:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 18:12:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 18:12:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 18:12:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 18:12:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 18:12:18,260 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 18:12:18,260 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 18:12:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2023-12-02 18:12:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2023-12-02 18:12:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 18:12:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 18:12:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 18:12:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 18:12:18,261 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 18:12:18,261 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 18:12:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 18:12:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 18:12:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 18:12:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 18:12:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 18:12:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 18:12:18,262 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 18:12:18,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 18:12:18,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 18:12:18,493 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 18:12:18,495 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 18:12:19,334 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 18:12:19,983 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 18:12:19,983 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 18:12:19,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:12:19 BoogieIcfgContainer [2023-12-02 18:12:19,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 18:12:19,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 18:12:19,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 18:12:19,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 18:12:19,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 06:12:17" (1/3) ... [2023-12-02 18:12:19,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1a7060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:12:19, skipping insertion in model container [2023-12-02 18:12:19,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:12:18" (2/3) ... [2023-12-02 18:12:19,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1a7060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 06:12:19, skipping insertion in model container [2023-12-02 18:12:19,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:12:19" (3/3) ... [2023-12-02 18:12:19,994 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product34.cil.c [2023-12-02 18:12:20,014 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 18:12:20,014 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 18:12:20,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 18:12:20,076 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;@216b66e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 18:12:20,077 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 18:12:20,082 INFO L276 IsEmpty]: Start isEmpty. Operand has 235 states, 132 states have (on average 1.2878787878787878) internal successors, (170), 137 states have internal predecessors, (170), 73 states have call successors, (73), 28 states have call predecessors, (73), 28 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) [2023-12-02 18:12:20,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 18:12:20,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:12:20,099 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] [2023-12-02 18:12:20,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:12:20,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:12:20,105 INFO L85 PathProgramCache]: Analyzing trace with hash -717299686, now seen corresponding path program 1 times [2023-12-02 18:12:20,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:12:20,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420788203] [2023-12-02 18:12:20,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:12:20,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:12:20,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:12:20,446 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 18:12:20,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:12:20,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420788203] [2023-12-02 18:12:20,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420788203] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:12:20,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:12:20,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 18:12:20,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17159474] [2023-12-02 18:12:20,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:12:20,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 18:12:20,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:12:20,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 18:12:20,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 18:12:20,482 INFO L87 Difference]: Start difference. First operand has 235 states, 132 states have (on average 1.2878787878787878) internal successors, (170), 137 states have internal predecessors, (170), 73 states have call successors, (73), 28 states have call predecessors, (73), 28 states have return successors, (73), 72 states have call predecessors, (73), 73 states have call successors, (73) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 18:12:20,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:12:20,666 INFO L93 Difference]: Finished difference Result 378 states and 503 transitions. [2023-12-02 18:12:20,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 18:12:20,669 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 87 [2023-12-02 18:12:20,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:12:20,682 INFO L225 Difference]: With dead ends: 378 [2023-12-02 18:12:20,682 INFO L226 Difference]: Without dead ends: 232 [2023-12-02 18:12:20,688 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 18:12:20,691 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:12:20,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 268 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:12:20,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2023-12-02 18:12:20,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2023-12-02 18:12:20,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 130 states have (on average 1.2615384615384615) internal successors, (164), 134 states have internal predecessors, (164), 73 states have call successors, (73), 28 states have call predecessors, (73), 28 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 18:12:20,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 309 transitions. [2023-12-02 18:12:20,755 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 309 transitions. Word has length 87 [2023-12-02 18:12:20,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:12:20,757 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 309 transitions. [2023-12-02 18:12:20,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 18:12:20,757 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 309 transitions. [2023-12-02 18:12:20,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 18:12:20,763 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:12:20,763 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] [2023-12-02 18:12:20,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 18:12:20,763 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:12:20,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:12:20,764 INFO L85 PathProgramCache]: Analyzing trace with hash 149612329, now seen corresponding path program 1 times [2023-12-02 18:12:20,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:12:20,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700636560] [2023-12-02 18:12:20,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:12:20,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:12:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:12:20,969 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 18:12:20,970 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:12:20,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700636560] [2023-12-02 18:12:20,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700636560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:12:20,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:12:20,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:12:20,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983472713] [2023-12-02 18:12:20,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:12:20,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:12:20,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:12:20,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:12:20,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:12:20,974 INFO L87 Difference]: Start difference. First operand 232 states and 309 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 18:12:21,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:12:21,107 INFO L93 Difference]: Finished difference Result 374 states and 488 transitions. [2023-12-02 18:12:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:12:21,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 88 [2023-12-02 18:12:21,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:12:21,112 INFO L225 Difference]: With dead ends: 374 [2023-12-02 18:12:21,112 INFO L226 Difference]: Without dead ends: 234 [2023-12-02 18:12:21,113 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 18:12:21,115 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 0 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:12:21,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 529 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:12:21,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2023-12-02 18:12:21,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2023-12-02 18:12:21,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 132 states have (on average 1.2575757575757576) internal successors, (166), 136 states have internal predecessors, (166), 73 states have call successors, (73), 28 states have call predecessors, (73), 28 states have return successors, (72), 71 states have call predecessors, (72), 72 states have call successors, (72) [2023-12-02 18:12:21,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 311 transitions. [2023-12-02 18:12:21,141 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 311 transitions. Word has length 88 [2023-12-02 18:12:21,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:12:21,141 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 311 transitions. [2023-12-02 18:12:21,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 18:12:21,141 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 311 transitions. [2023-12-02 18:12:21,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 18:12:21,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:12:21,147 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:12:21,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 18:12:21,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:12:21,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:12:21,148 INFO L85 PathProgramCache]: Analyzing trace with hash -292784668, now seen corresponding path program 1 times [2023-12-02 18:12:21,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:12:21,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768009504] [2023-12-02 18:12:21,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:12:21,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:12:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:12:21,279 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 18:12:21,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:12:21,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768009504] [2023-12-02 18:12:21,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768009504] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:12:21,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:12:21,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:12:21,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073092499] [2023-12-02 18:12:21,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:12:21,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:12:21,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:12:21,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:12:21,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:12:21,282 INFO L87 Difference]: Start difference. First operand 234 states and 311 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 18:12:21,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:12:21,454 INFO L93 Difference]: Finished difference Result 503 states and 689 transitions. [2023-12-02 18:12:21,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:12:21,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 104 [2023-12-02 18:12:21,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:12:21,458 INFO L225 Difference]: With dead ends: 503 [2023-12-02 18:12:21,458 INFO L226 Difference]: Without dead ends: 287 [2023-12-02 18:12:21,459 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 18:12:21,461 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 59 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:12:21,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 524 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:12:21,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-12-02 18:12:21,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 282. [2023-12-02 18:12:21,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 166 states have (on average 1.3313253012048192) internal successors, (221), 170 states have internal predecessors, (221), 87 states have call successors, (87), 28 states have call predecessors, (87), 28 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-02 18:12:21,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 394 transitions. [2023-12-02 18:12:21,487 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 394 transitions. Word has length 104 [2023-12-02 18:12:21,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:12:21,487 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 394 transitions. [2023-12-02 18:12:21,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 18:12:21,487 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 394 transitions. [2023-12-02 18:12:21,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 18:12:21,490 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:12:21,490 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:12:21,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 18:12:21,491 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:12:21,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:12:21,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1755283451, now seen corresponding path program 1 times [2023-12-02 18:12:21,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:12:21,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480048201] [2023-12-02 18:12:21,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:12:21,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:12:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:12:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 18:12:21,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:12:21,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480048201] [2023-12-02 18:12:21,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480048201] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:12:21,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192313453] [2023-12-02 18:12:21,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:12:21,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:12:21,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:12:21,652 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:12:21,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 18:12:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:12:22,020 INFO L262 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:12:22,030 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:12:22,085 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 18:12:22,085 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:12:22,163 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 18:12:22,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192313453] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:12:22,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1134082743] [2023-12-02 18:12:22,185 INFO L159 IcfgInterpreter]: Started Sifa with 79 locations of interest [2023-12-02 18:12:22,185 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:12:22,189 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:12:22,194 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:12:22,195 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:13:13,001 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 18:13:13,185 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 18:13:13,352 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:14:12,825 WARN L293 SmtUtils]: Spent 9.70s on a formula simplification. DAG size of input: 522 DAG size of output: 522 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:14:23,012 WARN L293 SmtUtils]: Spent 9.87s on a formula simplification. DAG size of input: 523 DAG size of output: 522 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:14:33,700 WARN L293 SmtUtils]: Spent 10.32s on a formula simplification. DAG size of input: 529 DAG size of output: 528 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:14:44,608 WARN L293 SmtUtils]: Spent 10.51s on a formula simplification. DAG size of input: 527 DAG size of output: 526 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:14:48,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1134082743] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:14:48,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:14:48,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 18:14:48,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666656626] [2023-12-02 18:14:48,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:14:48,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 18:14:48,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:14:48,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 18:14:48,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 18:14:48,626 INFO L87 Difference]: Start difference. First operand 282 states and 394 transitions. Second operand has 24 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2023-12-02 18:15:00,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:15:00,133 INFO L93 Difference]: Finished difference Result 611 states and 888 transitions. [2023-12-02 18:15:00,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 18:15:00,134 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 94 [2023-12-02 18:15:00,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:15:00,137 INFO L225 Difference]: With dead ends: 611 [2023-12-02 18:15:00,137 INFO L226 Difference]: Without dead ends: 347 [2023-12-02 18:15:00,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 95.3s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 18:15:00,139 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 58 mSDsluCounter, 3873 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4150 SdHoareTripleChecker+Invalid, 2511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:15:00,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4150 Invalid, 2511 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-12-02 18:15:00,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-12-02 18:15:00,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 305. [2023-12-02 18:15:00,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 188 states have (on average 1.351063829787234) internal successors, (254), 192 states have internal predecessors, (254), 87 states have call successors, (87), 29 states have call predecessors, (87), 29 states have return successors, (86), 85 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-02 18:15:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 427 transitions. [2023-12-02 18:15:00,234 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 427 transitions. Word has length 94 [2023-12-02 18:15:00,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:15:00,234 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 427 transitions. [2023-12-02 18:15:00,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.9375) internal successors, (47), 15 states have internal predecessors, (47), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2023-12-02 18:15:00,235 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 427 transitions. [2023-12-02 18:15:00,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 18:15:00,238 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:15:00,238 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:15:00,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 18:15:00,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:15:00,439 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:15:00,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:15:00,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1233819410, now seen corresponding path program 1 times [2023-12-02 18:15:00,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:15:00,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313483059] [2023-12-02 18:15:00,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:15:00,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:15:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:15:00,543 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 18:15:00,544 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:15:00,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313483059] [2023-12-02 18:15:00,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313483059] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:15:00,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 18:15:00,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 18:15:00,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505386827] [2023-12-02 18:15:00,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:15:00,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 18:15:00,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:15:00,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 18:15:00,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 18:15:00,547 INFO L87 Difference]: Start difference. First operand 305 states and 427 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 18:15:00,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:15:00,825 INFO L93 Difference]: Finished difference Result 713 states and 1034 transitions. [2023-12-02 18:15:00,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 18:15:00,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 99 [2023-12-02 18:15:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:15:00,829 INFO L225 Difference]: With dead ends: 713 [2023-12-02 18:15:00,829 INFO L226 Difference]: Without dead ends: 432 [2023-12-02 18:15:00,831 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 18:15:00,832 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 57 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 18:15:00,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 544 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 18:15:00,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-12-02 18:15:00,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 427. [2023-12-02 18:15:00,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 279 states have (on average 1.4121863799283154) internal successors, (394), 283 states have internal predecessors, (394), 118 states have call successors, (118), 29 states have call predecessors, (118), 29 states have return successors, (117), 116 states have call predecessors, (117), 117 states have call successors, (117) [2023-12-02 18:15:00,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 629 transitions. [2023-12-02 18:15:00,955 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 629 transitions. Word has length 99 [2023-12-02 18:15:00,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:15:00,955 INFO L495 AbstractCegarLoop]: Abstraction has 427 states and 629 transitions. [2023-12-02 18:15:00,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 18:15:00,956 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 629 transitions. [2023-12-02 18:15:00,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-02 18:15:00,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:15:00,959 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:15:00,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 18:15:00,960 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:15:00,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:15:00,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1065270618, now seen corresponding path program 1 times [2023-12-02 18:15:00,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:15:00,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633962973] [2023-12-02 18:15:00,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:15:00,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:15:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:15:01,148 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-02 18:15:01,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:15:01,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633962973] [2023-12-02 18:15:01,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633962973] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:15:01,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844796404] [2023-12-02 18:15:01,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:15:01,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:15:01,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:15:01,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:15:01,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 18:15:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:15:01,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 1247 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:15:01,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:15:01,528 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-02 18:15:01,528 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:15:01,600 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-02 18:15:01,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844796404] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:15:01,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [561868475] [2023-12-02 18:15:01,606 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2023-12-02 18:15:01,606 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:15:01,606 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:15:01,607 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:15:01,607 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:16:16,706 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 18:16:16,870 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 503 for LOIs [2023-12-02 18:16:19,075 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:16:41,641 WARN L293 SmtUtils]: Spent 6.77s on a formula simplification. DAG size of input: 503 DAG size of output: 504 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:16:51,995 WARN L293 SmtUtils]: Spent 10.16s on a formula simplification. DAG size of input: 533 DAG size of output: 529 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:17:35,216 WARN L293 SmtUtils]: Spent 9.82s on a formula simplification. DAG size of input: 526 DAG size of output: 526 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:17:45,441 WARN L293 SmtUtils]: Spent 9.91s on a formula simplification. DAG size of input: 527 DAG size of output: 526 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:17:56,344 WARN L293 SmtUtils]: Spent 10.52s on a formula simplification. DAG size of input: 533 DAG size of output: 532 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:18:07,072 WARN L293 SmtUtils]: Spent 10.30s on a formula simplification. DAG size of input: 531 DAG size of output: 530 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:18:30,247 WARN L293 SmtUtils]: Spent 22.65s on a formula simplification. DAG size of input: 541 DAG size of output: 530 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:18:53,299 WARN L293 SmtUtils]: Spent 22.48s on a formula simplification. DAG size of input: 539 DAG size of output: 528 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:19:05,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [561868475] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:19:05,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:19:05,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 18:19:05,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496624929] [2023-12-02 18:19:05,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:19:05,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 18:19:05,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:19:05,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 18:19:05,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 18:19:05,178 INFO L87 Difference]: Start difference. First operand 427 states and 629 transitions. Second operand has 28 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-12-02 18:19:20,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:19:20,565 INFO L93 Difference]: Finished difference Result 872 states and 1315 transitions. [2023-12-02 18:19:20,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 18:19:20,566 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 111 [2023-12-02 18:19:20,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:19:20,571 INFO L225 Difference]: With dead ends: 872 [2023-12-02 18:19:20,571 INFO L226 Difference]: Without dead ends: 508 [2023-12-02 18:19:20,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 166.1s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 18:19:20,573 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 276 mSDsluCounter, 3327 mSDsCounter, 0 mSdLazyCounter, 2557 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 3578 SdHoareTripleChecker+Invalid, 2565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2023-12-02 18:19:20,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 3578 Invalid, 2565 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2557 Invalid, 0 Unknown, 0 Unchecked, 15.0s Time] [2023-12-02 18:19:20,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-12-02 18:19:20,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 441. [2023-12-02 18:19:20,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 291 states have (on average 1.4123711340206186) internal successors, (411), 295 states have internal predecessors, (411), 119 states have call successors, (119), 30 states have call predecessors, (119), 30 states have return successors, (118), 117 states have call predecessors, (118), 118 states have call successors, (118) [2023-12-02 18:19:20,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 648 transitions. [2023-12-02 18:19:20,702 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 648 transitions. Word has length 111 [2023-12-02 18:19:20,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:19:20,703 INFO L495 AbstractCegarLoop]: Abstraction has 441 states and 648 transitions. [2023-12-02 18:19:20,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 8 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-12-02 18:19:20,703 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 648 transitions. [2023-12-02 18:19:20,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 18:19:20,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:19:20,706 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 18:19:20,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 18:19:20,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 18:19:20,907 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:19:20,907 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:19:20,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1857380437, now seen corresponding path program 1 times [2023-12-02 18:19:20,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:19:20,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801063026] [2023-12-02 18:19:20,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:19:20,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:19:20,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:19:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 18:19:21,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:19:21,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801063026] [2023-12-02 18:19:21,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801063026] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:19:21,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872457027] [2023-12-02 18:19:21,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:19:21,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:19:21,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:19:21,039 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:19:21,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 18:19:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:19:21,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 1270 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:19:21,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:19:21,423 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 18:19:21,423 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:19:21,491 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-02 18:19:21,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872457027] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:19:21,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1001909010] [2023-12-02 18:19:21,496 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2023-12-02 18:19:21,496 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:19:21,496 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:19:21,497 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:19:21,497 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:20:54,851 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 18:20:55,022 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 570 for LOIs [2023-12-02 18:20:56,896 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 579 for LOIs [2023-12-02 18:20:58,880 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 494 for LOIs [2023-12-02 18:20:59,812 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 18:20:59,980 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:22:02,717 WARN L293 SmtUtils]: Spent 12.70s on a formula simplification. DAG size of input: 607 DAG size of output: 602 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:22:15,210 WARN L293 SmtUtils]: Spent 12.08s on a formula simplification. DAG size of input: 608 DAG size of output: 602 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:23:09,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1001909010] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 18:23:09,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 18:23:09,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 18:23:09,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754679287] [2023-12-02 18:23:09,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 18:23:09,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 18:23:09,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 18:23:09,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 18:23:09,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 18:23:09,470 INFO L87 Difference]: Start difference. First operand 441 states and 648 transitions. Second operand has 33 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2023-12-02 18:23:39,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 18:23:39,199 INFO L93 Difference]: Finished difference Result 897 states and 1350 transitions. [2023-12-02 18:23:39,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 18:23:39,200 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) Word has length 103 [2023-12-02 18:23:39,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 18:23:39,203 INFO L225 Difference]: With dead ends: 897 [2023-12-02 18:23:39,203 INFO L226 Difference]: Without dead ends: 533 [2023-12-02 18:23:39,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 129.5s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 18:23:39,205 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 90 mSDsluCounter, 5128 mSDsCounter, 0 mSdLazyCounter, 4516 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 5378 SdHoareTripleChecker+Invalid, 4525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 4516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2023-12-02 18:23:39,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 5378 Invalid, 4525 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 4516 Invalid, 0 Unknown, 0 Unchecked, 29.3s Time] [2023-12-02 18:23:39,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2023-12-02 18:23:39,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 477. [2023-12-02 18:23:39,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 321 states have (on average 1.411214953271028) internal successors, (453), 325 states have internal predecessors, (453), 122 states have call successors, (122), 33 states have call predecessors, (122), 33 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2023-12-02 18:23:39,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 696 transitions. [2023-12-02 18:23:39,377 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 696 transitions. Word has length 103 [2023-12-02 18:23:39,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 18:23:39,378 INFO L495 AbstractCegarLoop]: Abstraction has 477 states and 696 transitions. [2023-12-02 18:23:39,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (21), 10 states have call predecessors, (21), 10 states have call successors, (21) [2023-12-02 18:23:39,378 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 696 transitions. [2023-12-02 18:23:39,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-12-02 18:23:39,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 18:23:39,381 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:23:39,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 18:23:39,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:23:39,581 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoing__wrappee__EncryptErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 18:23:39,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 18:23:39,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1626138201, now seen corresponding path program 1 times [2023-12-02 18:23:39,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 18:23:39,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638623303] [2023-12-02 18:23:39,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:23:39,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 18:23:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:23:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 18:23:39,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 18:23:39,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638623303] [2023-12-02 18:23:39,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638623303] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 18:23:39,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055156894] [2023-12-02 18:23:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 18:23:39,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 18:23:39,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 18:23:39,693 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 18:23:39,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2937ab3-1deb-450d-96a3-22960538f360/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 18:23:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 18:23:40,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 1244 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 18:23:40,007 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 18:23:40,037 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 18:23:40,037 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 18:23:40,114 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-02 18:23:40,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055156894] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 18:23:40,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [130901456] [2023-12-02 18:23:40,119 INFO L159 IcfgInterpreter]: Started Sifa with 94 locations of interest [2023-12-02 18:23:40,119 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 18:23:40,119 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 18:23:40,120 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 18:23:40,120 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 18:25:15,149 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 226 for LOIs [2023-12-02 18:25:15,311 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 231 for LOIs [2023-12-02 18:25:15,483 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 18:26:17,869 WARN L293 SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 531 DAG size of output: 531 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:26:28,666 WARN L293 SmtUtils]: Spent 10.48s on a formula simplification. DAG size of input: 532 DAG size of output: 531 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 18:26:40,392 WARN L293 SmtUtils]: Spent 11.35s on a formula simplification. DAG size of input: 538 DAG size of output: 537 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)