./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec3_product32.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_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/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_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec3_product32.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/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_6b187565-8534-40b7-b1f2-fc52a9106822/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 f844ee25e08c400ffe9294b51b3c9849047d932ed3d2e45badb4ba2d0884ce06 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 14:49:04,555 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 14:49:04,620 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 14:49:04,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 14:49:04,626 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 14:49:04,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 14:49:04,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 14:49:04,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 14:49:04,651 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 14:49:04,651 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 14:49:04,652 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 14:49:04,652 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 14:49:04,653 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 14:49:04,653 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 14:49:04,654 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 14:49:04,655 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 14:49:04,655 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 14:49:04,656 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 14:49:04,656 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 14:49:04,657 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 14:49:04,657 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 14:49:04,658 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 14:49:04,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 14:49:04,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 14:49:04,660 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 14:49:04,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 14:49:04,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 14:49:04,661 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 14:49:04,661 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 14:49:04,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 14:49:04,662 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 14:49:04,662 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 14:49:04,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 14:49:04,663 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 14:49:04,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 14:49:04,663 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 14:49:04,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 14:49:04,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:49:04,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 14:49:04,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 14:49:04,665 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 14:49:04,665 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 14:49:04,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 14:49:04,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 14:49:04,666 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 14:49:04,666 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 14:49:04,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 14:49:04,666 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_6b187565-8534-40b7-b1f2-fc52a9106822/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f844ee25e08c400ffe9294b51b3c9849047d932ed3d2e45badb4ba2d0884ce06 [2023-12-02 14:49:04,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 14:49:04,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 14:49:04,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 14:49:04,911 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 14:49:04,911 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 14:49:04,913 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec3_product32.cil.c [2023-12-02 14:49:07,677 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 14:49:07,947 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 14:49:07,948 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/sv-benchmarks/c/product-lines/email_spec3_product32.cil.c [2023-12-02 14:49:07,969 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/data/33910aea9/3d3f5945ce74418ab0f7dc8f4dda8a97/FLAG88469e890 [2023-12-02 14:49:07,981 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/data/33910aea9/3d3f5945ce74418ab0f7dc8f4dda8a97 [2023-12-02 14:49:07,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 14:49:07,984 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 14:49:07,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 14:49:07,986 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 14:49:07,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 14:49:07,990 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:49:07" (1/1) ... [2023-12-02 14:49:07,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16c66b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:07, skipping insertion in model container [2023-12-02 14:49:07,991 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:49:07" (1/1) ... [2023-12-02 14:49:08,052 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 14:49:08,190 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_6b187565-8534-40b7-b1f2-fc52a9106822/sv-benchmarks/c/product-lines/email_spec3_product32.cil.c[1542,1555] [2023-12-02 14:49:08,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:49:08,546 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 14:49:08,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2023-12-02 14:49:08,556 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [57] [2023-12-02 14:49:08,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [106] [2023-12-02 14:49:08,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [541] [2023-12-02 14:49:08,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [558] [2023-12-02 14:49:08,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"SignVerify_spec.i","") [787] [2023-12-02 14:49:08,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [845] [2023-12-02 14:49:08,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1917] [2023-12-02 14:49:08,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2205] [2023-12-02 14:49:08,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [2343] [2023-12-02 14:49:08,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2740] [2023-12-02 14:49:08,562 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_6b187565-8534-40b7-b1f2-fc52a9106822/sv-benchmarks/c/product-lines/email_spec3_product32.cil.c[1542,1555] [2023-12-02 14:49:08,681 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 14:49:08,712 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 14:49:08,718 INFO L206 MainTranslator]: Completed translation [2023-12-02 14:49:08,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08 WrapperNode [2023-12-02 14:49:08,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 14:49:08,719 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 14:49:08,719 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 14:49:08,719 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 14:49:08,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08" (1/1) ... [2023-12-02 14:49:08,758 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08" (1/1) ... [2023-12-02 14:49:08,813 INFO L138 Inliner]: procedures = 135, calls = 246, calls flagged for inlining = 61, calls inlined = 53, statements flattened = 1047 [2023-12-02 14:49:08,814 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 14:49:08,814 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 14:49:08,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 14:49:08,815 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 14:49:08,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08" (1/1) ... [2023-12-02 14:49:08,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08" (1/1) ... [2023-12-02 14:49:08,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08" (1/1) ... [2023-12-02 14:49:08,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08" (1/1) ... [2023-12-02 14:49:08,863 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08" (1/1) ... [2023-12-02 14:49:08,875 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08" (1/1) ... [2023-12-02 14:49:08,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08" (1/1) ... [2023-12-02 14:49:08,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08" (1/1) ... [2023-12-02 14:49:08,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 14:49:08,899 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 14:49:08,900 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 14:49:08,900 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 14:49:08,901 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08" (1/1) ... [2023-12-02 14:49:08,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 14:49:08,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:49:08,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 14:49:08,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 14:49:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-12-02 14:49:08,974 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-12-02 14:49:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2023-12-02 14:49:08,975 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2023-12-02 14:49:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 14:49:08,975 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 14:49:08,975 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2023-12-02 14:49:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2023-12-02 14:49:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 14:49:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 14:49:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 14:49:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 14:49:08,976 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2023-12-02 14:49:08,976 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2023-12-02 14:49:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 14:49:08,977 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 14:49:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-12-02 14:49:08,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-12-02 14:49:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 14:49:08,977 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 14:49:08,977 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 14:49:08,978 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 14:49:08,978 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-12-02 14:49:08,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-12-02 14:49:08,978 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 14:49:08,978 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 14:49:08,978 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 14:49:08,978 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 14:49:08,978 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 14:49:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 14:49:08,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 14:49:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 14:49:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-12-02 14:49:08,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-12-02 14:49:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-12-02 14:49:08,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-12-02 14:49:08,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2023-12-02 14:49:08,979 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2023-12-02 14:49:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 14:49:08,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 14:49:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2023-12-02 14:49:08,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2023-12-02 14:49:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 14:49:08,980 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 14:49:08,980 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 14:49:08,980 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 14:49:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-12-02 14:49:08,981 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-12-02 14:49:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 14:49:08,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 14:49:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 14:49:08,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 14:49:08,981 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 14:49:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 14:49:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 14:49:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 14:49:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 14:49:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 14:49:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 14:49:08,982 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2023-12-02 14:49:08,982 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2023-12-02 14:49:08,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 14:49:08,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 14:49:09,169 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 14:49:09,172 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 14:49:09,990 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 14:49:10,440 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 14:49:10,440 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 14:49:10,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:49:10 BoogieIcfgContainer [2023-12-02 14:49:10,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 14:49:10,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 14:49:10,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 14:49:10,449 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 14:49:10,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:49:07" (1/3) ... [2023-12-02 14:49:10,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250199f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:49:10, skipping insertion in model container [2023-12-02 14:49:10,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:08" (2/3) ... [2023-12-02 14:49:10,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250199f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:49:10, skipping insertion in model container [2023-12-02 14:49:10,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:49:10" (3/3) ... [2023-12-02 14:49:10,452 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec3_product32.cil.c [2023-12-02 14:49:10,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 14:49:10,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 14:49:10,532 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 14:49:10,539 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;@1fc5f29f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 14:49:10,539 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 14:49:10,545 INFO L276 IsEmpty]: Start isEmpty. Operand has 229 states, 128 states have (on average 1.3046875) internal successors, (167), 135 states have internal predecessors, (167), 70 states have call successors, (70), 29 states have call predecessors, (70), 29 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-02 14:49:10,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 14:49:10,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:49:10,563 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:49:10,563 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:49:10,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:49:10,568 INFO L85 PathProgramCache]: Analyzing trace with hash 428898681, now seen corresponding path program 1 times [2023-12-02 14:49:10,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:49:10,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9810967] [2023-12-02 14:49:10,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:49:10,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:49:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:49:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-02 14:49:10,927 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:49:10,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9810967] [2023-12-02 14:49:10,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9810967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:49:10,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:49:10,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 14:49:10,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944493125] [2023-12-02 14:49:10,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:49:10,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 14:49:10,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:49:10,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 14:49:10,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 14:49:10,965 INFO L87 Difference]: Start difference. First operand has 229 states, 128 states have (on average 1.3046875) internal successors, (167), 135 states have internal predecessors, (167), 70 states have call successors, (70), 29 states have call predecessors, (70), 29 states have return successors, (70), 68 states have call predecessors, (70), 70 states have call successors, (70) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 14:49:11,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:49:11,106 INFO L93 Difference]: Finished difference Result 365 states and 485 transitions. [2023-12-02 14:49:11,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 14:49:11,109 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 101 [2023-12-02 14:49:11,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:49:11,119 INFO L225 Difference]: With dead ends: 365 [2023-12-02 14:49:11,120 INFO L226 Difference]: Without dead ends: 225 [2023-12-02 14:49:11,125 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 14:49:11,128 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:49:11,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:49:11,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-12-02 14:49:11,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2023-12-02 14:49:11,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 126 states have (on average 1.2777777777777777) internal successors, (161), 131 states have internal predecessors, (161), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-02 14:49:11,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 298 transitions. [2023-12-02 14:49:11,186 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 298 transitions. Word has length 101 [2023-12-02 14:49:11,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:49:11,188 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 298 transitions. [2023-12-02 14:49:11,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-12-02 14:49:11,188 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 298 transitions. [2023-12-02 14:49:11,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 14:49:11,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:49:11,194 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] [2023-12-02 14:49:11,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 14:49:11,195 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:49:11,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:49:11,196 INFO L85 PathProgramCache]: Analyzing trace with hash 977106169, now seen corresponding path program 1 times [2023-12-02 14:49:11,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:49:11,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539924191] [2023-12-02 14:49:11,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:49:11,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:49:11,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:49:11,448 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 14:49:11,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:49:11,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539924191] [2023-12-02 14:49:11,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539924191] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:49:11,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:49:11,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:49:11,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520348620] [2023-12-02 14:49:11,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:49:11,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:49:11,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:49:11,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:49:11,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:49:11,456 INFO L87 Difference]: Start difference. First operand 225 states and 298 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 14:49:11,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:49:11,584 INFO L93 Difference]: Finished difference Result 360 states and 466 transitions. [2023-12-02 14:49:11,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:49:11,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 91 [2023-12-02 14:49:11,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:49:11,588 INFO L225 Difference]: With dead ends: 360 [2023-12-02 14:49:11,588 INFO L226 Difference]: Without dead ends: 227 [2023-12-02 14:49:11,589 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 14:49:11,590 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 0 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:49:11,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 513 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:49:11,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-12-02 14:49:11,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2023-12-02 14:49:11,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 128 states have (on average 1.2734375) internal successors, (163), 133 states have internal predecessors, (163), 70 states have call successors, (70), 29 states have call predecessors, (70), 28 states have return successors, (67), 66 states have call predecessors, (67), 67 states have call successors, (67) [2023-12-02 14:49:11,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 300 transitions. [2023-12-02 14:49:11,615 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 300 transitions. Word has length 91 [2023-12-02 14:49:11,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:49:11,616 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 300 transitions. [2023-12-02 14:49:11,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 14:49:11,616 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 300 transitions. [2023-12-02 14:49:11,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 14:49:11,619 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:49:11,619 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] [2023-12-02 14:49:11,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 14:49:11,620 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:49:11,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:49:11,620 INFO L85 PathProgramCache]: Analyzing trace with hash 550218886, now seen corresponding path program 1 times [2023-12-02 14:49:11,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:49:11,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273834544] [2023-12-02 14:49:11,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:49:11,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:49:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:49:11,764 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 14:49:11,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:49:11,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273834544] [2023-12-02 14:49:11,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273834544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:49:11,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:49:11,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:49:11,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062853420] [2023-12-02 14:49:11,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:49:11,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:49:11,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:49:11,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:49:11,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:49:11,767 INFO L87 Difference]: Start difference. First operand 227 states and 300 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 14:49:11,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:49:11,893 INFO L93 Difference]: Finished difference Result 489 states and 667 transitions. [2023-12-02 14:49:11,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:49:11,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 96 [2023-12-02 14:49:11,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:49:11,898 INFO L225 Difference]: With dead ends: 489 [2023-12-02 14:49:11,898 INFO L226 Difference]: Without dead ends: 280 [2023-12-02 14:49:11,899 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 14:49:11,900 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 59 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:49:11,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 521 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:49:11,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2023-12-02 14:49:11,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 275. [2023-12-02 14:49:11,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 162 states have (on average 1.345679012345679) internal successors, (218), 167 states have internal predecessors, (218), 84 states have call successors, (84), 29 states have call predecessors, (84), 28 states have return successors, (81), 80 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-02 14:49:11,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 383 transitions. [2023-12-02 14:49:11,927 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 383 transitions. Word has length 96 [2023-12-02 14:49:11,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:49:11,927 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 383 transitions. [2023-12-02 14:49:11,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-12-02 14:49:11,927 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 383 transitions. [2023-12-02 14:49:11,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 14:49:11,930 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:49:11,930 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-12-02 14:49:11,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 14:49:11,931 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:49:11,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:49:11,931 INFO L85 PathProgramCache]: Analyzing trace with hash -994267754, now seen corresponding path program 1 times [2023-12-02 14:49:11,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:49:11,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286970715] [2023-12-02 14:49:11,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:49:11,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:49:11,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:49:12,146 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 14:49:12,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:49:12,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286970715] [2023-12-02 14:49:12,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286970715] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:49:12,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889512936] [2023-12-02 14:49:12,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:49:12,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:49:12,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:49:12,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:49:12,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 14:49:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:49:12,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:49:12,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:49:12,621 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 14:49:12,621 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:49:12,705 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 14:49:12,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889512936] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:49:12,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1734075673] [2023-12-02 14:49:12,727 INFO L159 IcfgInterpreter]: Started Sifa with 87 locations of interest [2023-12-02 14:49:12,727 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:49:12,731 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:49:12,737 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:49:12,737 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:49:56,585 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 14:49:56,823 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 14:49:56,993 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:51:06,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1734075673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:51:06,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:51:06,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 14:51:06,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226716332] [2023-12-02 14:51:06,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:51:06,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 14:51:06,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:51:06,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 14:51:06,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=726, Unknown=0, NotChecked=0, Total=812 [2023-12-02 14:51:06,361 INFO L87 Difference]: Start difference. First operand 275 states and 383 transitions. Second operand has 24 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-12-02 14:51:22,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:51:22,644 INFO L93 Difference]: Finished difference Result 597 states and 866 transitions. [2023-12-02 14:51:22,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 14:51:22,645 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) Word has length 108 [2023-12-02 14:51:22,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:51:22,648 INFO L225 Difference]: With dead ends: 597 [2023-12-02 14:51:22,648 INFO L226 Difference]: Without dead ends: 340 [2023-12-02 14:51:22,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 72.8s TimeCoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-12-02 14:51:22,651 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 58 mSDsluCounter, 3728 mSDsCounter, 0 mSdLazyCounter, 2823 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 4001 SdHoareTripleChecker+Invalid, 2833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-02 14:51:22,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 4001 Invalid, 2833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2823 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2023-12-02 14:51:22,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-12-02 14:51:22,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 298. [2023-12-02 14:51:22,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 184 states have (on average 1.3641304347826086) internal successors, (251), 189 states have internal predecessors, (251), 84 states have call successors, (84), 30 states have call predecessors, (84), 29 states have return successors, (81), 80 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-02 14:51:22,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 416 transitions. [2023-12-02 14:51:22,728 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 416 transitions. Word has length 108 [2023-12-02 14:51:22,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:51:22,729 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 416 transitions. [2023-12-02 14:51:22,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 3.1875) internal successors, (51), 15 states have internal predecessors, (51), 7 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 7 states have call predecessors, (21), 7 states have call successors, (21) [2023-12-02 14:51:22,729 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 416 transitions. [2023-12-02 14:51:22,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 14:51:22,732 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:51:22,732 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] [2023-12-02 14:51:22,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 14:51:22,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:51:22,933 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:51:22,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:51:22,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1060800004, now seen corresponding path program 1 times [2023-12-02 14:51:22,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:51:22,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894316122] [2023-12-02 14:51:22,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:51:22,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:51:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:51:23,037 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 14:51:23,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:51:23,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894316122] [2023-12-02 14:51:23,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894316122] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:51:23,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 14:51:23,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 14:51:23,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902166871] [2023-12-02 14:51:23,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:51:23,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 14:51:23,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:51:23,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 14:51:23,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 14:51:23,040 INFO L87 Difference]: Start difference. First operand 298 states and 416 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 14:51:23,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:51:23,257 INFO L93 Difference]: Finished difference Result 699 states and 1012 transitions. [2023-12-02 14:51:23,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 14:51:23,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 102 [2023-12-02 14:51:23,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:51:23,262 INFO L225 Difference]: With dead ends: 699 [2023-12-02 14:51:23,262 INFO L226 Difference]: Without dead ends: 425 [2023-12-02 14:51:23,263 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 14:51:23,264 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 57 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 14:51:23,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 526 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 14:51:23,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2023-12-02 14:51:23,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 420. [2023-12-02 14:51:23,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 275 states have (on average 1.4218181818181819) internal successors, (391), 280 states have internal predecessors, (391), 115 states have call successors, (115), 30 states have call predecessors, (115), 29 states have return successors, (112), 111 states have call predecessors, (112), 112 states have call successors, (112) [2023-12-02 14:51:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 618 transitions. [2023-12-02 14:51:23,373 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 618 transitions. Word has length 102 [2023-12-02 14:51:23,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:51:23,373 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 618 transitions. [2023-12-02 14:51:23,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2023-12-02 14:51:23,374 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 618 transitions. [2023-12-02 14:51:23,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-02 14:51:23,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:51:23,377 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 14:51:23,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 14:51:23,377 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:51:23,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:51:23,378 INFO L85 PathProgramCache]: Analyzing trace with hash -357945701, now seen corresponding path program 1 times [2023-12-02 14:51:23,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:51:23,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108159667] [2023-12-02 14:51:23,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:51:23,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:51:23,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:51:23,552 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 14:51:23,553 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:51:23,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108159667] [2023-12-02 14:51:23,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108159667] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:51:23,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127232365] [2023-12-02 14:51:23,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:51:23,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:51:23,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:51:23,554 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:51:23,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 14:51:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:51:23,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 1268 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:51:23,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:51:23,944 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 14:51:23,944 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:51:24,025 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-02 14:51:24,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127232365] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:51:24,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2034097165] [2023-12-02 14:51:24,030 INFO L159 IcfgInterpreter]: Started Sifa with 91 locations of interest [2023-12-02 14:51:24,030 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:51:24,031 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:51:24,031 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:51:24,031 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:52:34,265 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 14:52:34,483 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 503 for LOIs [2023-12-02 14:52:36,657 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:52:58,706 WARN L293 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 503 DAG size of output: 504 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:53:08,851 WARN L293 SmtUtils]: Spent 9.96s on a formula simplification. DAG size of input: 533 DAG size of output: 528 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:53:50,623 WARN L293 SmtUtils]: Spent 9.96s on a formula simplification. DAG size of input: 526 DAG size of output: 526 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:54:00,811 WARN L293 SmtUtils]: Spent 9.86s on a formula simplification. DAG size of input: 527 DAG size of output: 526 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:54:11,840 WARN L293 SmtUtils]: Spent 10.65s on a formula simplification. DAG size of input: 533 DAG size of output: 532 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:54:22,535 WARN L293 SmtUtils]: Spent 10.26s on a formula simplification. DAG size of input: 531 DAG size of output: 530 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:54:33,532 WARN L293 SmtUtils]: Spent 10.56s on a formula simplification. DAG size of input: 535 DAG size of output: 534 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:54:44,355 WARN L293 SmtUtils]: Spent 10.34s on a formula simplification. DAG size of input: 533 DAG size of output: 532 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:54:56,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2034097165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:54:56,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:54:56,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 14:54:56,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626266468] [2023-12-02 14:54:56,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:54:56,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 14:54:56,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:54:56,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 14:54:56,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=941, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 14:54:56,275 INFO L87 Difference]: Start difference. First operand 420 states and 618 transitions. Second operand has 28 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 8 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-12-02 14:55:15,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 14:55:15,809 INFO L93 Difference]: Finished difference Result 858 states and 1293 transitions. [2023-12-02 14:55:15,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 14:55:15,810 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 8 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 114 [2023-12-02 14:55:15,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 14:55:15,814 INFO L225 Difference]: With dead ends: 858 [2023-12-02 14:55:15,814 INFO L226 Difference]: Without dead ends: 501 [2023-12-02 14:55:15,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 143.1s TimeCoverageRelationStatistics Valid=120, Invalid=1002, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 14:55:15,817 INFO L413 NwaCegarLoop]: 241 mSDtfsCounter, 201 mSDsluCounter, 3285 mSDsCounter, 0 mSdLazyCounter, 2949 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 3526 SdHoareTripleChecker+Invalid, 2958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2023-12-02 14:55:15,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 3526 Invalid, 2958 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2949 Invalid, 0 Unknown, 0 Unchecked, 15.7s Time] [2023-12-02 14:55:15,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-12-02 14:55:15,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 434. [2023-12-02 14:55:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 287 states have (on average 1.421602787456446) internal successors, (408), 292 states have internal predecessors, (408), 116 states have call successors, (116), 31 states have call predecessors, (116), 30 states have return successors, (113), 112 states have call predecessors, (113), 113 states have call successors, (113) [2023-12-02 14:55:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 637 transitions. [2023-12-02 14:55:15,940 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 637 transitions. Word has length 114 [2023-12-02 14:55:15,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 14:55:15,940 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 637 transitions. [2023-12-02 14:55:15,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 8 states have call successors, (26), 3 states have call predecessors, (26), 3 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2023-12-02 14:55:15,940 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 637 transitions. [2023-12-02 14:55:15,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-02 14:55:15,943 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 14:55:15,944 INFO L195 NwaCegarLoop]: trace histogram [3, 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, 1, 1, 1, 1, 1, 1] [2023-12-02 14:55:15,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 14:55:16,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:55:16,144 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 14:55:16,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 14:55:16,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1700405021, now seen corresponding path program 1 times [2023-12-02 14:55:16,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 14:55:16,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693789344] [2023-12-02 14:55:16,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:55:16,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 14:55:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:55:16,301 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 14:55:16,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 14:55:16,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693789344] [2023-12-02 14:55:16,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693789344] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 14:55:16,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521844677] [2023-12-02 14:55:16,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 14:55:16,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 14:55:16,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 14:55:16,303 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 14:55:16,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 14:55:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 14:55:16,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 1346 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 14:55:16,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 14:55:16,667 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 14:55:16,667 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:55:16,738 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 14:55:16,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521844677] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 14:55:16,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [950876451] [2023-12-02 14:55:16,743 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2023-12-02 14:55:16,743 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 14:55:16,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 14:55:16,744 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 14:55:16,744 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 14:57:00,921 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 14:57:01,138 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 570 for LOIs [2023-12-02 14:57:03,328 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 579 for LOIs [2023-12-02 14:57:05,657 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 494 for LOIs [2023-12-02 14:57:06,599 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 14:57:06,800 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 14:58:10,136 WARN L293 SmtUtils]: Spent 12.73s on a formula simplification. DAG size of input: 607 DAG size of output: 602 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:58:23,997 WARN L293 SmtUtils]: Spent 13.40s on a formula simplification. DAG size of input: 608 DAG size of output: 602 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:58:47,567 WARN L293 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 584 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:58:53,498 WARN L293 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 589 DAG size of output: 585 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:59:26,433 WARN L293 SmtUtils]: Spent 5.00s on a formula simplification. DAG size of input: 570 DAG size of output: 566 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:59:26,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [950876451] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 14:59:26,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 14:59:26,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 14:59:26,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145092145] [2023-12-02 14:59:26,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 14:59:26,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 14:59:26,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 14:59:26,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 14:59:26,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1291, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 14:59:26,446 INFO L87 Difference]: Start difference. First operand 434 states and 637 transitions. Second operand has 33 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2023-12-02 15:00:03,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:00:03,464 INFO L93 Difference]: Finished difference Result 883 states and 1328 transitions. [2023-12-02 15:00:03,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 15:00:03,466 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) Word has length 117 [2023-12-02 15:00:03,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:00:03,469 INFO L225 Difference]: With dead ends: 883 [2023-12-02 15:00:03,470 INFO L226 Difference]: Without dead ends: 526 [2023-12-02 15:00:03,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 144.0s TimeCoverageRelationStatistics Valid=120, Invalid=1362, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 15:00:03,472 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 60 mSDsluCounter, 3891 mSDsCounter, 0 mSdLazyCounter, 4118 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 4128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:00:03,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 4130 Invalid, 4128 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 4118 Invalid, 0 Unknown, 0 Unchecked, 32.1s Time] [2023-12-02 15:00:03,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-12-02 15:00:03,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 470. [2023-12-02 15:00:03,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 317 states have (on average 1.4195583596214512) internal successors, (450), 322 states have internal predecessors, (450), 119 states have call successors, (119), 34 states have call predecessors, (119), 33 states have return successors, (116), 115 states have call predecessors, (116), 116 states have call successors, (116) [2023-12-02 15:00:03,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 685 transitions. [2023-12-02 15:00:03,672 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 685 transitions. Word has length 117 [2023-12-02 15:00:03,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:00:03,672 INFO L495 AbstractCegarLoop]: Abstraction has 470 states and 685 transitions. [2023-12-02 15:00:03,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 2.8421052631578947) internal successors, (54), 18 states have internal predecessors, (54), 10 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2023-12-02 15:00:03,672 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 685 transitions. [2023-12-02 15:00:03,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 15:00:03,674 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:00:03,675 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] [2023-12-02 15:00:03,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-02 15:00:03,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:00:03,876 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 15:00:03,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:00:03,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1801677902, now seen corresponding path program 1 times [2023-12-02 15:00:03,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:00:03,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570414494] [2023-12-02 15:00:03,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:00:03,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:00:03,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:00:04,048 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 15:00:04,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:00:04,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570414494] [2023-12-02 15:00:04,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570414494] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 15:00:04,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126977838] [2023-12-02 15:00:04,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:00:04,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 15:00:04,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:00:04,050 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 15:00:04,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6b187565-8534-40b7-b1f2-fc52a9106822/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 15:00:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:00:04,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 1209 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 15:00:04,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 15:00:04,456 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 15:00:04,456 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 15:00:04,540 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 15:00:04,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126977838] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 15:00:04,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1415279723] [2023-12-02 15:00:04,545 INFO L159 IcfgInterpreter]: Started Sifa with 88 locations of interest [2023-12-02 15:00:04,545 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 15:00:04,546 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 15:00:04,546 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 15:00:04,547 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 15:01:53,995 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-12-02 15:01:54,224 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-12-02 15:01:54,425 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 15:02:56,889 WARN L293 SmtUtils]: Spent 10.54s on a formula simplification. DAG size of input: 530 DAG size of output: 530 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:03:08,003 WARN L293 SmtUtils]: Spent 10.78s on a formula simplification. DAG size of input: 531 DAG size of output: 530 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:03:19,975 WARN L293 SmtUtils]: Spent 11.60s on a formula simplification. DAG size of input: 537 DAG size of output: 536 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 15:03:32,177 WARN L293 SmtUtils]: Spent 11.76s on a formula simplification. DAG size of input: 535 DAG size of output: 534 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)