./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec27_product31.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_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/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_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec27_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/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_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/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 d51a9662ec11e877bdc62fbff8cdf19fcc101bb2b0234c411e7900fe51bd7f38 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:28:24,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:28:24,484 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 17:28:24,490 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:28:24,491 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:28:24,519 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:28:24,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:28:24,520 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:28:24,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:28:24,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:28:24,522 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:28:24,522 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:28:24,523 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:28:24,523 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:28:24,524 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:28:24,524 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:28:24,525 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:28:24,526 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:28:24,526 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:28:24,527 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:28:24,527 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:28:24,528 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:28:24,529 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:28:24,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:28:24,530 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:28:24,530 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:28:24,530 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:28:24,531 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:28:24,531 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:28:24,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:28:24,532 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:28:24,533 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:28:24,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:28:24,533 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:28:24,533 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:28:24,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:28:24,534 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:28:24,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:28:24,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:28:24,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:28:24,535 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:28:24,535 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:28:24,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:28:24,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:28:24,536 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:28:24,536 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:28:24,536 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:28:24,536 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_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d51a9662ec11e877bdc62fbff8cdf19fcc101bb2b0234c411e7900fe51bd7f38 [2023-12-02 17:28:24,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:28:24,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:28:24,777 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:28:24,778 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:28:24,779 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:28:24,780 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec27_product31.cil.c [2023-12-02 17:28:27,466 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:28:27,730 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:28:27,730 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/sv-benchmarks/c/product-lines/email_spec27_product31.cil.c [2023-12-02 17:28:27,751 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/data/1570999d1/329aa8383ad04033b40f206f38e6eaee/FLAG45a6dcca8 [2023-12-02 17:28:27,763 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/data/1570999d1/329aa8383ad04033b40f206f38e6eaee [2023-12-02 17:28:27,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:28:27,767 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:28:27,768 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:28:27,768 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:28:27,773 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:28:27,774 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:28:27" (1/1) ... [2023-12-02 17:28:27,775 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5898fb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:27, skipping insertion in model container [2023-12-02 17:28:27,775 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:28:27" (1/1) ... [2023-12-02 17:28:27,854 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:28:28,343 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_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/sv-benchmarks/c/product-lines/email_spec27_product31.cil.c[61351,61364] [2023-12-02 17:28:28,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:28:28,374 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:28:28,384 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-02 17:28:28,385 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [363] [2023-12-02 17:28:28,386 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [398] [2023-12-02 17:28:28,386 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [810] [2023-12-02 17:28:28,386 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1882] [2023-12-02 17:28:28,386 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"VerifyForward_spec.i","") [2098] [2023-12-02 17:28:28,386 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2130] [2023-12-02 17:28:28,387 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [2496] [2023-12-02 17:28:28,387 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2513] [2023-12-02 17:28:28,387 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2869] [2023-12-02 17:28:28,387 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2878] [2023-12-02 17:28:28,494 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_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/sv-benchmarks/c/product-lines/email_spec27_product31.cil.c[61351,61364] [2023-12-02 17:28:28,499 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:28:28,522 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:28:28,528 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:28:28,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28 WrapperNode [2023-12-02 17:28:28,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:28:28,529 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:28:28,529 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:28:28,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:28:28,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28" (1/1) ... [2023-12-02 17:28:28,566 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28" (1/1) ... [2023-12-02 17:28:28,616 INFO L138 Inliner]: procedures = 131, calls = 219, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1032 [2023-12-02 17:28:28,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:28:28,617 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:28:28,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:28:28,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:28:28,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28" (1/1) ... [2023-12-02 17:28:28,627 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28" (1/1) ... [2023-12-02 17:28:28,635 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28" (1/1) ... [2023-12-02 17:28:28,635 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28" (1/1) ... [2023-12-02 17:28:28,660 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28" (1/1) ... [2023-12-02 17:28:28,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28" (1/1) ... [2023-12-02 17:28:28,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28" (1/1) ... [2023-12-02 17:28:28,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28" (1/1) ... [2023-12-02 17:28:28,691 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:28:28,692 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:28:28,692 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:28:28,692 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:28:28,693 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28" (1/1) ... [2023-12-02 17:28:28,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:28:28,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:28:28,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:28:28,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:28:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 17:28:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 17:28:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 17:28:28,766 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 17:28:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 17:28:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 17:28:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 17:28:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 17:28:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 17:28:28,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 17:28:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 17:28:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 17:28:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 17:28:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 17:28:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 17:28:28,768 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 17:28:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 17:28:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 17:28:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 17:28:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 17:28:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 17:28:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 17:28:28,769 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 17:28:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 17:28:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 17:28:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:28:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 17:28:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 17:28:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 17:28:28,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 17:28:28,770 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 17:28:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 17:28:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 17:28:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 17:28:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 17:28:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 17:28:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2023-12-02 17:28:28,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2023-12-02 17:28:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 17:28:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 17:28:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 17:28:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 17:28:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 17:28:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 17:28:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 17:28:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 17:28:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 17:28:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 17:28:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:28:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 17:28:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 17:28:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:28:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:28:28,962 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:28:28,964 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:28:29,661 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:28:30,121 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:28:30,122 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:28:30,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:28:30 BoogieIcfgContainer [2023-12-02 17:28:30,123 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:28:30,126 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:28:30,126 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:28:30,129 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:28:30,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:28:27" (1/3) ... [2023-12-02 17:28:30,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5703c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:28:30, skipping insertion in model container [2023-12-02 17:28:30,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:28:28" (2/3) ... [2023-12-02 17:28:30,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e5703c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:28:30, skipping insertion in model container [2023-12-02 17:28:30,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:28:30" (3/3) ... [2023-12-02 17:28:30,132 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec27_product31.cil.c [2023-12-02 17:28:30,152 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:28:30,152 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:28:30,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:28:30,208 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;@24d93e8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:28:30,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:28:30,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 207 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 124 states have internal predecessors, (157), 61 states have call successors, (61), 24 states have call predecessors, (61), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-12-02 17:28:30,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 17:28:30,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:28:30,228 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] [2023-12-02 17:28:30,228 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:28:30,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:28:30,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1695681660, now seen corresponding path program 1 times [2023-12-02 17:28:30,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:28:30,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382386385] [2023-12-02 17:28:30,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:28:30,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:28:30,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:28:30,596 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:28:30,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:28:30,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382386385] [2023-12-02 17:28:30,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382386385] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:28:30,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:28:30,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:28:30,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235540681] [2023-12-02 17:28:30,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:28:30,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 17:28:30,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:28:30,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 17:28:30,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:28:30,638 INFO L87 Difference]: Start difference. First operand has 207 states, 120 states have (on average 1.3083333333333333) internal successors, (157), 124 states have internal predecessors, (157), 61 states have call successors, (61), 24 states have call predecessors, (61), 24 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 17:28:30,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:28:30,770 INFO L93 Difference]: Finished difference Result 331 states and 436 transitions. [2023-12-02 17:28:30,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 17:28:30,772 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 92 [2023-12-02 17:28:30,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:28:30,784 INFO L225 Difference]: With dead ends: 331 [2023-12-02 17:28:30,784 INFO L226 Difference]: Without dead ends: 204 [2023-12-02 17:28:30,789 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 17:28:30,792 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:28:30,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:28:30,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-02 17:28:30,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2023-12-02 17:28:30,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 118 states have (on average 1.2796610169491525) internal successors, (151), 121 states have internal predecessors, (151), 61 states have call successors, (61), 24 states have call predecessors, (61), 24 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 17:28:30,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 272 transitions. [2023-12-02 17:28:30,847 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 272 transitions. Word has length 92 [2023-12-02 17:28:30,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:28:30,849 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 272 transitions. [2023-12-02 17:28:30,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 17:28:30,849 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 272 transitions. [2023-12-02 17:28:30,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 17:28:30,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:28:30,855 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] [2023-12-02 17:28:30,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:28:30,856 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:28:30,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:28:30,857 INFO L85 PathProgramCache]: Analyzing trace with hash -1860417923, now seen corresponding path program 1 times [2023-12-02 17:28:30,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:28:30,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682534444] [2023-12-02 17:28:30,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:28:30,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:28:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:28:31,142 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:28:31,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:28:31,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682534444] [2023-12-02 17:28:31,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682534444] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:28:31,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:28:31,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:28:31,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064656232] [2023-12-02 17:28:31,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:28:31,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:28:31,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:28:31,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:28:31,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:28:31,146 INFO L87 Difference]: Start difference. First operand 204 states and 272 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 17:28:31,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:28:31,259 INFO L93 Difference]: Finished difference Result 327 states and 424 transitions. [2023-12-02 17:28:31,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:28:31,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 93 [2023-12-02 17:28:31,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:28:31,263 INFO L225 Difference]: With dead ends: 327 [2023-12-02 17:28:31,263 INFO L226 Difference]: Without dead ends: 206 [2023-12-02 17:28:31,265 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 17:28:31,266 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 0 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:28:31,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 467 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:28:31,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-12-02 17:28:31,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2023-12-02 17:28:31,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 120 states have (on average 1.275) internal successors, (153), 123 states have internal predecessors, (153), 61 states have call successors, (61), 24 states have call predecessors, (61), 24 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 17:28:31,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 274 transitions. [2023-12-02 17:28:31,289 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 274 transitions. Word has length 93 [2023-12-02 17:28:31,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:28:31,289 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 274 transitions. [2023-12-02 17:28:31,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 17:28:31,290 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2023-12-02 17:28:31,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 17:28:31,292 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:28:31,293 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:28:31,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 17:28:31,293 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:28:31,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:28:31,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1845426013, now seen corresponding path program 1 times [2023-12-02 17:28:31,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:28:31,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705003700] [2023-12-02 17:28:31,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:28:31,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:28:31,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:28:31,436 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:28:31,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:28:31,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705003700] [2023-12-02 17:28:31,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705003700] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:28:31,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:28:31,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:28:31,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791731530] [2023-12-02 17:28:31,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:28:31,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:28:31,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:28:31,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:28:31,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:28:31,439 INFO L87 Difference]: Start difference. First operand 206 states and 274 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, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 17:28:31,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:28:31,554 INFO L93 Difference]: Finished difference Result 442 states and 607 transitions. [2023-12-02 17:28:31,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:28:31,555 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, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 98 [2023-12-02 17:28:31,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:28:31,557 INFO L225 Difference]: With dead ends: 442 [2023-12-02 17:28:31,558 INFO L226 Difference]: Without dead ends: 254 [2023-12-02 17:28:31,559 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 17:28:31,560 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 57 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:28:31,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 463 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:28:31,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-12-02 17:28:31,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 249. [2023-12-02 17:28:31,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 152 states have (on average 1.355263157894737) internal successors, (206), 155 states have internal predecessors, (206), 72 states have call successors, (72), 24 states have call predecessors, (72), 24 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2023-12-02 17:28:31,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 349 transitions. [2023-12-02 17:28:31,584 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 349 transitions. Word has length 98 [2023-12-02 17:28:31,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:28:31,584 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 349 transitions. [2023-12-02 17:28:31,591 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, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 17:28:31,592 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 349 transitions. [2023-12-02 17:28:31,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 17:28:31,596 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:28:31,597 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:28:31,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:28:31,597 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:28:31,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:28:31,598 INFO L85 PathProgramCache]: Analyzing trace with hash -983719986, now seen corresponding path program 1 times [2023-12-02 17:28:31,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:28:31,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985881065] [2023-12-02 17:28:31,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:28:31,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:28:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:28:31,824 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:28:31,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:28:31,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985881065] [2023-12-02 17:28:31,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985881065] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:28:31,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724863561] [2023-12-02 17:28:31,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:28:31,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:28:31,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:28:31,828 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:28:31,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:28:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:28:32,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:28:32,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:28:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:28:32,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:28:32,355 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:28:32,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724863561] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:28:32,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1850305534] [2023-12-02 17:28:32,377 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2023-12-02 17:28:32,377 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:28:32,381 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:28:32,387 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:28:32,387 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:29:12,396 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 17:29:12,565 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 17:29:12,732 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:30:13,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1850305534] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:30:13,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:30:13,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 17:30:13,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643313648] [2023-12-02 17:30:13,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:30:13,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 17:30:13,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:30:13,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 17:30:13,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 17:30:13,500 INFO L87 Difference]: Start difference. First operand 249 states and 349 transitions. Second operand has 24 states, 16 states have (on average 3.125) internal successors, (50), 15 states have internal predecessors, (50), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-02 17:30:23,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:30:23,276 INFO L93 Difference]: Finished difference Result 543 states and 794 transitions. [2023-12-02 17:30:23,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 17:30:23,277 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 3.125) internal successors, (50), 15 states have internal predecessors, (50), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 99 [2023-12-02 17:30:23,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:30:23,280 INFO L225 Difference]: With dead ends: 543 [2023-12-02 17:30:23,280 INFO L226 Difference]: Without dead ends: 312 [2023-12-02 17:30:23,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 60.8s TimeCoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 17:30:23,282 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 56 mSDsluCounter, 3673 mSDsCounter, 0 mSdLazyCounter, 2425 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3923 SdHoareTripleChecker+Invalid, 2434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:30:23,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3923 Invalid, 2434 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2425 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2023-12-02 17:30:23,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-12-02 17:30:23,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 272. [2023-12-02 17:30:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 174 states have (on average 1.3735632183908046) internal successors, (239), 177 states have internal predecessors, (239), 72 states have call successors, (72), 25 states have call predecessors, (72), 25 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2023-12-02 17:30:23,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 382 transitions. [2023-12-02 17:30:23,353 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 382 transitions. Word has length 99 [2023-12-02 17:30:23,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:30:23,354 INFO L495 AbstractCegarLoop]: Abstraction has 272 states and 382 transitions. [2023-12-02 17:30:23,354 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 3.125) internal successors, (50), 15 states have internal predecessors, (50), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-02 17:30:23,354 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 382 transitions. [2023-12-02 17:30:23,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 17:30:23,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:30:23,357 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:30:23,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:30:23,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:30:23,558 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:30:23,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:30:23,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1948538053, now seen corresponding path program 1 times [2023-12-02 17:30:23,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:30:23,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113424212] [2023-12-02 17:30:23,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:30:23,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:30:23,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:30:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 17:30:23,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:30:23,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113424212] [2023-12-02 17:30:23,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113424212] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:30:23,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:30:23,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:30:23,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789730453] [2023-12-02 17:30:23,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:30:23,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:30:23,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:30:23,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:30:23,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:30:23,673 INFO L87 Difference]: Start difference. First operand 272 states and 382 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 17:30:23,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:30:23,889 INFO L93 Difference]: Finished difference Result 637 states and 928 transitions. [2023-12-02 17:30:23,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:30:23,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 104 [2023-12-02 17:30:23,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:30:23,893 INFO L225 Difference]: With dead ends: 637 [2023-12-02 17:30:23,893 INFO L226 Difference]: Without dead ends: 389 [2023-12-02 17:30:23,894 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 17:30:23,895 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 55 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:30:23,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 478 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:30:23,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2023-12-02 17:30:23,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 384. [2023-12-02 17:30:23,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 261 states have (on average 1.4367816091954022) internal successors, (375), 264 states have internal predecessors, (375), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-02 17:30:23,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 568 transitions. [2023-12-02 17:30:23,993 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 568 transitions. Word has length 104 [2023-12-02 17:30:23,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:30:23,994 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 568 transitions. [2023-12-02 17:30:23,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2023-12-02 17:30:23,994 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 568 transitions. [2023-12-02 17:30:23,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 17:30:23,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:30:23,998 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:30:23,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 17:30:23,998 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:30:23,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:30:23,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1205500029, now seen corresponding path program 1 times [2023-12-02 17:30:23,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:30:23,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241840294] [2023-12-02 17:30:23,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:30:23,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:30:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:30:24,163 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 17:30:24,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:30:24,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241840294] [2023-12-02 17:30:24,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241840294] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:30:24,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028241719] [2023-12-02 17:30:24,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:30:24,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:30:24,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:30:24,168 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:30:24,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 17:30:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:30:24,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:30:24,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:30:24,520 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 17:30:24,520 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:30:24,594 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 17:30:24,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028241719] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:30:24,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [53809787] [2023-12-02 17:30:24,599 INFO L159 IcfgInterpreter]: Started Sifa with 86 locations of interest [2023-12-02 17:30:24,599 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:30:24,600 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:30:24,600 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:30:24,600 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:31:27,959 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 17:31:28,129 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 475 for LOIs [2023-12-02 17:31:30,304 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:31:50,837 WARN L293 SmtUtils]: Spent 6.05s on a formula simplification. DAG size of input: 475 DAG size of output: 475 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:32:00,091 WARN L293 SmtUtils]: Spent 9.08s on a formula simplification. DAG size of input: 505 DAG size of output: 500 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:32:37,862 WARN L293 SmtUtils]: Spent 9.05s on a formula simplification. DAG size of input: 498 DAG size of output: 498 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:32:47,018 WARN L293 SmtUtils]: Spent 8.85s on a formula simplification. DAG size of input: 499 DAG size of output: 498 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:32:56,999 WARN L293 SmtUtils]: Spent 9.61s on a formula simplification. DAG size of input: 505 DAG size of output: 504 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:33:06,885 WARN L293 SmtUtils]: Spent 9.50s on a formula simplification. DAG size of input: 503 DAG size of output: 502 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:33:16,617 WARN L293 SmtUtils]: Spent 9.34s on a formula simplification. DAG size of input: 507 DAG size of output: 506 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:33:26,389 WARN L293 SmtUtils]: Spent 9.32s on a formula simplification. DAG size of input: 505 DAG size of output: 504 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:33:37,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [53809787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:33:37,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:33:37,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 17:33:37,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050277237] [2023-12-02 17:33:37,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:33:37,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 17:33:37,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:33:37,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 17:33:37,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:33:37,191 INFO L87 Difference]: Start difference. First operand 384 states and 568 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, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-12-02 17:33:50,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:33:50,803 INFO L93 Difference]: Finished difference Result 784 states and 1189 transitions. [2023-12-02 17:33:50,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 17:33:50,803 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, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 105 [2023-12-02 17:33:50,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:33:50,806 INFO L225 Difference]: With dead ends: 784 [2023-12-02 17:33:50,806 INFO L226 Difference]: Without dead ends: 463 [2023-12-02 17:33:50,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 126.9s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:33:50,807 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 265 mSDsluCounter, 3402 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 3619 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:33:50,808 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 3619 Invalid, 2574 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2566 Invalid, 0 Unknown, 0 Unchecked, 13.3s Time] [2023-12-02 17:33:50,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-12-02 17:33:50,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 398. [2023-12-02 17:33:50,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 273 states have (on average 1.435897435897436) internal successors, (392), 276 states have internal predecessors, (392), 98 states have call successors, (98), 26 states have call predecessors, (98), 26 states have return successors, (97), 97 states have call predecessors, (97), 97 states have call successors, (97) [2023-12-02 17:33:50,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 587 transitions. [2023-12-02 17:33:50,908 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 587 transitions. Word has length 105 [2023-12-02 17:33:50,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:33:50,912 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 587 transitions. [2023-12-02 17:33:50,913 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, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2023-12-02 17:33:50,913 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 587 transitions. [2023-12-02 17:33:50,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 17:33:50,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:33:50,916 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:33:50,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 17:33:51,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-12-02 17:33:51,117 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:33:51,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:33:51,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1703428419, now seen corresponding path program 1 times [2023-12-02 17:33:51,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:33:51,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079817110] [2023-12-02 17:33:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:51,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:33:51,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:51,285 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:33:51,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:33:51,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079817110] [2023-12-02 17:33:51,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079817110] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:33:51,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937225289] [2023-12-02 17:33:51,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:33:51,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:33:51,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:33:51,287 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:33:51,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 17:33:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:33:51,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:33:51,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:33:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:33:51,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:33:51,725 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:33:51,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937225289] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:33:51,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2042934448] [2023-12-02 17:33:51,730 INFO L159 IcfgInterpreter]: Started Sifa with 91 locations of interest [2023-12-02 17:33:51,730 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:33:51,731 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:33:51,731 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:33:51,731 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:35:50,463 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 17:35:50,626 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 542 for LOIs [2023-12-02 17:35:52,493 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 551 for LOIs [2023-12-02 17:35:54,446 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 466 for LOIs [2023-12-02 17:35:55,273 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 17:35:55,438 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:36:45,540 WARN L293 SmtUtils]: Spent 5.20s on a formula simplification. DAG size of input: 580 DAG size of output: 572 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:36:51,036 WARN L293 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 581 DAG size of output: 572 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:37:39,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2042934448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:37:39,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:37:39,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 17:37:39,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259261260] [2023-12-02 17:37:39,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:37:39,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 17:37:39,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:37:39,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 17:37:39,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 17:37:39,779 INFO L87 Difference]: Start difference. First operand 398 states and 587 transitions. Second operand has 33 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2023-12-02 17:38:01,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:38:01,365 INFO L93 Difference]: Finished difference Result 809 states and 1224 transitions. [2023-12-02 17:38:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 17:38:01,366 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) Word has length 108 [2023-12-02 17:38:01,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:38:01,370 INFO L225 Difference]: With dead ends: 809 [2023-12-02 17:38:01,370 INFO L226 Difference]: Without dead ends: 488 [2023-12-02 17:38:01,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 104.3s TimeCoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 17:38:01,373 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 87 mSDsluCounter, 3631 mSDsCounter, 0 mSdLazyCounter, 3395 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 3404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:38:01,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 3846 Invalid, 3404 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 3395 Invalid, 0 Unknown, 0 Unchecked, 21.2s Time] [2023-12-02 17:38:01,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-12-02 17:38:01,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 434. [2023-12-02 17:38:01,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 303 states have (on average 1.4323432343234324) internal successors, (434), 306 states have internal predecessors, (434), 101 states have call successors, (101), 29 states have call predecessors, (101), 29 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-02 17:38:01,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 635 transitions. [2023-12-02 17:38:01,549 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 635 transitions. Word has length 108 [2023-12-02 17:38:01,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:38:01,550 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 635 transitions. [2023-12-02 17:38:01,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.789473684210526) internal successors, (53), 18 states have internal predecessors, (53), 10 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (22), 10 states have call predecessors, (22), 10 states have call successors, (22) [2023-12-02 17:38:01,550 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 635 transitions. [2023-12-02 17:38:01,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 17:38:01,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:38:01,553 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:38:01,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 17:38:01,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:38:01,754 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:38:01,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:38:01,754 INFO L85 PathProgramCache]: Analyzing trace with hash 779865725, now seen corresponding path program 1 times [2023-12-02 17:38:01,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:38:01,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520353819] [2023-12-02 17:38:01,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:38:01,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:38:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:38:01,903 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:38:01,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:38:01,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520353819] [2023-12-02 17:38:01,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520353819] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:38:01,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125486458] [2023-12-02 17:38:01,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:38:01,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:38:01,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:38:01,905 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:38:01,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 17:38:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:38:02,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:38:02,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:38:02,253 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:38:02,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:38:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:38:02,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125486458] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:38:02,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [808887516] [2023-12-02 17:38:02,323 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2023-12-02 17:38:02,323 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:38:02,324 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:38:02,324 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:38:02,324 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:39:00,955 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 17:39:01,122 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 225 for LOIs [2023-12-02 17:39:01,288 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:40:34,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [808887516] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:40:34,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:40:34,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 17:40:34,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430454980] [2023-12-02 17:40:34,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:40:34,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 17:40:34,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:34,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 17:40:34,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 17:40:34,907 INFO L87 Difference]: Start difference. First operand 434 states and 635 transitions. Second operand has 32 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 23 states have internal predecessors, (58), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-02 17:40:47,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:47,803 INFO L93 Difference]: Finished difference Result 823 states and 1239 transitions. [2023-12-02 17:40:47,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 17:40:47,804 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 23 states have internal predecessors, (58), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 107 [2023-12-02 17:40:47,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:47,807 INFO L225 Difference]: With dead ends: 823 [2023-12-02 17:40:47,807 INFO L226 Difference]: Without dead ends: 502 [2023-12-02 17:40:47,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 288 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 93.6s TimeCoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 17:40:47,809 INFO L413 NwaCegarLoop]: 214 mSDtfsCounter, 148 mSDsluCounter, 4032 mSDsCounter, 0 mSdLazyCounter, 2788 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 4246 SdHoareTripleChecker+Invalid, 2796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:47,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 4246 Invalid, 2796 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2788 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2023-12-02 17:40:47,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2023-12-02 17:40:47,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 454. [2023-12-02 17:40:47,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 323 states have (on average 1.436532507739938) internal successors, (464), 326 states have internal predecessors, (464), 101 states have call successors, (101), 29 states have call predecessors, (101), 29 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2023-12-02 17:40:47,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 665 transitions. [2023-12-02 17:40:47,975 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 665 transitions. Word has length 107 [2023-12-02 17:40:47,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:47,976 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 665 transitions. [2023-12-02 17:40:47,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 23 states have internal predecessors, (58), 7 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2023-12-02 17:40:47,976 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 665 transitions. [2023-12-02 17:40:47,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-12-02 17:40:47,978 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:47,979 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:47,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 17:40:48,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:40:48,179 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:40:48,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:48,180 INFO L85 PathProgramCache]: Analyzing trace with hash 112067914, now seen corresponding path program 1 times [2023-12-02 17:40:48,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:48,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510868713] [2023-12-02 17:40:48,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:48,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:48,991 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-02 17:40:48,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:48,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510868713] [2023-12-02 17:40:48,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510868713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:40:48,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:40:48,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2023-12-02 17:40:48,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186991000] [2023-12-02 17:40:48,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:40:48,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-02 17:40:48,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:48,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-02 17:40:48,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2023-12-02 17:40:48,993 INFO L87 Difference]: Start difference. First operand 454 states and 665 transitions. Second operand has 18 states, 13 states have (on average 4.153846153846154) internal successors, (54), 15 states have internal predecessors, (54), 11 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2023-12-02 17:40:50,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:50,697 INFO L93 Difference]: Finished difference Result 758 states and 1059 transitions. [2023-12-02 17:40:50,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 17:40:50,697 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 13 states have (on average 4.153846153846154) internal successors, (54), 15 states have internal predecessors, (54), 11 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 110 [2023-12-02 17:40:50,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:50,701 INFO L225 Difference]: With dead ends: 758 [2023-12-02 17:40:50,701 INFO L226 Difference]: Without dead ends: 622 [2023-12-02 17:40:50,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=885, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:40:50,703 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 522 mSDsluCounter, 3088 mSDsCounter, 0 mSdLazyCounter, 2564 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 3375 SdHoareTripleChecker+Invalid, 2758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 2564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:50,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 3375 Invalid, 2758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 2564 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-02 17:40:50,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2023-12-02 17:40:50,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 610. [2023-12-02 17:40:50,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 415 states have (on average 1.378313253012048) internal successors, (572), 418 states have internal predecessors, (572), 149 states have call successors, (149), 45 states have call predecessors, (149), 45 states have return successors, (149), 148 states have call predecessors, (149), 147 states have call successors, (149) [2023-12-02 17:40:50,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 870 transitions. [2023-12-02 17:40:50,907 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 870 transitions. Word has length 110 [2023-12-02 17:40:50,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:50,908 INFO L495 AbstractCegarLoop]: Abstraction has 610 states and 870 transitions. [2023-12-02 17:40:50,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 13 states have (on average 4.153846153846154) internal successors, (54), 15 states have internal predecessors, (54), 11 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2023-12-02 17:40:50,908 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 870 transitions. [2023-12-02 17:40:50,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-02 17:40:50,912 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:50,912 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:50,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 17:40:50,912 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:40:50,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:50,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1385675797, now seen corresponding path program 1 times [2023-12-02 17:40:50,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:50,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751841323] [2023-12-02 17:40:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:50,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:50,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:51,876 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-02 17:40:51,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:51,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751841323] [2023-12-02 17:40:51,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751841323] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:40:51,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:40:51,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2023-12-02 17:40:51,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085847486] [2023-12-02 17:40:51,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:40:51,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-02 17:40:51,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:40:51,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-02 17:40:51,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2023-12-02 17:40:51,879 INFO L87 Difference]: Start difference. First operand 610 states and 870 transitions. Second operand has 16 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 12 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2023-12-02 17:40:53,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:40:53,226 INFO L93 Difference]: Finished difference Result 1126 states and 1522 transitions. [2023-12-02 17:40:53,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-12-02 17:40:53,226 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 12 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) Word has length 116 [2023-12-02 17:40:53,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:40:53,231 INFO L225 Difference]: With dead ends: 1126 [2023-12-02 17:40:53,231 INFO L226 Difference]: Without dead ends: 877 [2023-12-02 17:40:53,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2023-12-02 17:40:53,233 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 506 mSDsluCounter, 2222 mSDsCounter, 0 mSdLazyCounter, 2141 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 508 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 2141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:40:53,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [508 Valid, 2439 Invalid, 2338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 2141 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-02 17:40:53,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2023-12-02 17:40:53,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 863. [2023-12-02 17:40:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 556 states have (on average 1.3219424460431655) internal successors, (735), 567 states have internal predecessors, (735), 228 states have call successors, (228), 76 states have call predecessors, (228), 78 states have return successors, (230), 224 states have call predecessors, (230), 224 states have call successors, (230) [2023-12-02 17:40:53,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1193 transitions. [2023-12-02 17:40:53,434 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1193 transitions. Word has length 116 [2023-12-02 17:40:53,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:40:53,435 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1193 transitions. [2023-12-02 17:40:53,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 12 states have call successors, (24), 3 states have call predecessors, (24), 2 states have return successors, (22), 11 states have call predecessors, (22), 11 states have call successors, (22) [2023-12-02 17:40:53,436 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1193 transitions. [2023-12-02 17:40:53,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-02 17:40:53,439 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:40:53,439 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:40:53,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 17:40:53,439 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:40:53,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:40:53,440 INFO L85 PathProgramCache]: Analyzing trace with hash -873557476, now seen corresponding path program 1 times [2023-12-02 17:40:53,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:40:53,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546663263] [2023-12-02 17:40:53,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:53,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:40:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:53,634 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 17:40:53,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:40:53,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546663263] [2023-12-02 17:40:53,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546663263] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:40:53,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480243409] [2023-12-02 17:40:53,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:40:53,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:40:53,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:40:53,636 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:40:53,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f6fdb01-9b82-45ee-b164-b0037cf2fb28/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 17:40:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:40:53,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 1231 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:40:53,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:40:53,957 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 17:40:53,957 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:40:54,027 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 17:40:54,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [480243409] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:40:54,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [789876786] [2023-12-02 17:40:54,031 INFO L159 IcfgInterpreter]: Started Sifa with 104 locations of interest [2023-12-02 17:40:54,031 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:40:54,032 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:40:54,032 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:40:54,032 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:41:50,034 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-12-02 17:41:50,198 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 475 for LOIs [2023-12-02 17:41:52,329 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:42:12,553 WARN L293 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 475 DAG size of output: 475 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:42:21,753 WARN L293 SmtUtils]: Spent 9.02s on a formula simplification. DAG size of input: 505 DAG size of output: 500 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)