./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec8_product22.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_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/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_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec8_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/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_8dec4700-5860-405b-9b36-a3c44e141773/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 b01b58381ce8e0150d6e0f0de264371fec0586e2ead4f1a313de13afba1fd67c --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:41:18,853 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:41:18,920 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 17:41:18,924 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:41:18,925 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:41:18,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:41:18,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:41:18,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:41:18,950 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:41:18,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:41:18,951 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:41:18,951 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:41:18,952 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:41:18,952 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:41:18,953 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:41:18,953 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:41:18,954 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:41:18,954 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:41:18,955 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:41:18,955 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:41:18,955 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:41:18,956 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:41:18,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:41:18,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:41:18,958 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:41:18,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:41:18,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:41:18,959 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:41:18,959 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:41:18,971 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:41:18,971 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:41:18,972 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:41:18,972 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:41:18,972 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:41:18,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:41:18,973 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:41:18,973 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:41:18,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:41:18,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:41:18,973 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:41:18,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:41:18,974 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:41:18,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:41:18,974 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:41:18,975 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:41:18,975 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:41:18,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:41:18,975 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_8dec4700-5860-405b-9b36-a3c44e141773/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b01b58381ce8e0150d6e0f0de264371fec0586e2ead4f1a313de13afba1fd67c [2023-12-02 17:41:19,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:41:19,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:41:19,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:41:19,246 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:41:19,247 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:41:19,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/product-lines/email_spec8_product22.cil.c [2023-12-02 17:41:21,893 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:41:22,171 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:41:22,171 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/sv-benchmarks/c/product-lines/email_spec8_product22.cil.c [2023-12-02 17:41:22,192 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/data/d145f082e/a6e8d64b323144e182f418a1ed504afd/FLAG08757f1b8 [2023-12-02 17:41:22,206 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/data/d145f082e/a6e8d64b323144e182f418a1ed504afd [2023-12-02 17:41:22,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:41:22,210 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:41:22,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:41:22,212 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:41:22,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:41:22,217 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:22,218 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc82e36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22, skipping insertion in model container [2023-12-02 17:41:22,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:22,295 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:41:22,654 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_8dec4700-5860-405b-9b36-a3c44e141773/sv-benchmarks/c/product-lines/email_spec8_product22.cil.c[29813,29826] [2023-12-02 17:41:22,763 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:41:22,777 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:41:22,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2023-12-02 17:41:22,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [375] [2023-12-02 17:41:22,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [787] [2023-12-02 17:41:22,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1006] [2023-12-02 17:41:22,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1372] [2023-12-02 17:41:22,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1381] [2023-12-02 17:41:22,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1398] [2023-12-02 17:41:22,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1704] [2023-12-02 17:41:22,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1739] [2023-12-02 17:41:22,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2804] [2023-12-02 17:41:22,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptAutoResponder_spec.i","") [2907] [2023-12-02 17:41:22,835 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_8dec4700-5860-405b-9b36-a3c44e141773/sv-benchmarks/c/product-lines/email_spec8_product22.cil.c[29813,29826] [2023-12-02 17:41:22,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:41:22,897 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:41:22,906 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:41:22,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22 WrapperNode [2023-12-02 17:41:22,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:41:22,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:41:22,907 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:41:22,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:41:22,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:22,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:22,982 INFO L138 Inliner]: procedures = 129, calls = 211, calls flagged for inlining = 60, calls inlined = 55, statements flattened = 1057 [2023-12-02 17:41:22,982 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:41:22,983 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:41:22,983 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:41:22,983 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:41:22,990 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:22,990 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:22,995 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:22,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:23,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:23,026 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:23,031 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:23,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:23,046 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:41:23,047 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:41:23,047 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:41:23,047 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:41:23,048 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22" (1/1) ... [2023-12-02 17:41:23,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:41:23,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:41:23,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:41:23,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:41:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-12-02 17:41:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-12-02 17:41:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-12-02 17:41:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-12-02 17:41:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-12-02 17:41:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-12-02 17:41:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-12-02 17:41:23,174 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-12-02 17:41:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-12-02 17:41:23,175 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-12-02 17:41:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-12-02 17:41:23,175 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-12-02 17:41:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-12-02 17:41:23,175 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-12-02 17:41:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-12-02 17:41:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-12-02 17:41:23,175 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-12-02 17:41:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-12-02 17:41:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-12-02 17:41:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-12-02 17:41:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-12-02 17:41:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:41:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-12-02 17:41:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-12-02 17:41:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-12-02 17:41:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-12-02 17:41:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-12-02 17:41:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-12-02 17:41:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-12-02 17:41:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-12-02 17:41:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-12-02 17:41:23,177 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-12-02 17:41:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-12-02 17:41:23,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-12-02 17:41:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-12-02 17:41:23,178 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-12-02 17:41:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:41:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-12-02 17:41:23,178 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-12-02 17:41:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:41:23,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:41:23,355 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:41:23,357 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:41:23,971 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:41:24,339 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:41:24,339 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 17:41:24,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:41:24 BoogieIcfgContainer [2023-12-02 17:41:24,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:41:24,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:41:24,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:41:24,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:41:24,346 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:41:22" (1/3) ... [2023-12-02 17:41:24,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ecc0a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:41:24, skipping insertion in model container [2023-12-02 17:41:24,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:22" (2/3) ... [2023-12-02 17:41:24,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ecc0a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:41:24, skipping insertion in model container [2023-12-02 17:41:24,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:41:24" (3/3) ... [2023-12-02 17:41:24,349 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec8_product22.cil.c [2023-12-02 17:41:24,364 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:41:24,364 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:41:24,409 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:41:24,415 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;@3acc4ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:41:24,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:41:24,420 INFO L276 IsEmpty]: Start isEmpty. Operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-12-02 17:41:24,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 17:41:24,433 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:41:24,434 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-02 17:41:24,434 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:41:24,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:41:24,440 INFO L85 PathProgramCache]: Analyzing trace with hash -1099054292, now seen corresponding path program 1 times [2023-12-02 17:41:24,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:41:24,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698599700] [2023-12-02 17:41:24,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:24,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:41:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:24,760 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:41:24,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:41:24,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698599700] [2023-12-02 17:41:24,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698599700] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:41:24,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:41:24,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:41:24,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107024722] [2023-12-02 17:41:24,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:41:24,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 17:41:24,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:41:24,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 17:41:24,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:41:24,800 INFO L87 Difference]: Start difference. First operand has 170 states, 100 states have (on average 1.35) internal successors, (135), 104 states have internal predecessors, (135), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 17:41:24,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:41:24,915 INFO L93 Difference]: Finished difference Result 257 states and 348 transitions. [2023-12-02 17:41:24,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 17:41:24,917 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 56 [2023-12-02 17:41:24,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:41:24,928 INFO L225 Difference]: With dead ends: 257 [2023-12-02 17:41:24,928 INFO L226 Difference]: Without dead ends: 167 [2023-12-02 17:41:24,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:41:24,936 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:41:24,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 198 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:41:24,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2023-12-02 17:41:24,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2023-12-02 17:41:24,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 98 states have (on average 1.316326530612245) internal successors, (129), 101 states have internal predecessors, (129), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-02 17:41:24,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 228 transitions. [2023-12-02 17:41:24,993 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 228 transitions. Word has length 56 [2023-12-02 17:41:24,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:41:24,995 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 228 transitions. [2023-12-02 17:41:24,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 17:41:24,996 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 228 transitions. [2023-12-02 17:41:24,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 17:41:24,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:41:25,000 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-12-02 17:41:25,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:41:25,000 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:41:25,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:41:25,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1222860945, now seen corresponding path program 1 times [2023-12-02 17:41:25,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:41:25,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148663749] [2023-12-02 17:41:25,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:25,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:41:25,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:25,192 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:41:25,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:41:25,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148663749] [2023-12-02 17:41:25,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148663749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:41:25,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:41:25,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:41:25,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628560006] [2023-12-02 17:41:25,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:41:25,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:41:25,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:41:25,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:41:25,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:41:25,197 INFO L87 Difference]: Start difference. First operand 167 states and 228 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 17:41:25,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:41:25,300 INFO L93 Difference]: Finished difference Result 253 states and 336 transitions. [2023-12-02 17:41:25,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:41:25,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 57 [2023-12-02 17:41:25,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:41:25,303 INFO L225 Difference]: With dead ends: 253 [2023-12-02 17:41:25,303 INFO L226 Difference]: Without dead ends: 169 [2023-12-02 17:41:25,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:41:25,306 INFO L413 NwaCegarLoop]: 195 mSDtfsCounter, 0 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:41:25,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:41:25,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-12-02 17:41:25,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2023-12-02 17:41:25,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 100 states have (on average 1.31) internal successors, (131), 103 states have internal predecessors, (131), 50 states have call successors, (50), 18 states have call predecessors, (50), 18 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-12-02 17:41:25,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 230 transitions. [2023-12-02 17:41:25,327 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 230 transitions. Word has length 57 [2023-12-02 17:41:25,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:41:25,328 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 230 transitions. [2023-12-02 17:41:25,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 17:41:25,328 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 230 transitions. [2023-12-02 17:41:25,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 17:41:25,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:41:25,331 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:41:25,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 17:41:25,332 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:41:25,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:41:25,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1076222175, now seen corresponding path program 1 times [2023-12-02 17:41:25,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:41:25,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801515889] [2023-12-02 17:41:25,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:25,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:41:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:41:25,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:41:25,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801515889] [2023-12-02 17:41:25,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801515889] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:41:25,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:41:25,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:41:25,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901065789] [2023-12-02 17:41:25,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:41:25,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:41:25,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:41:25,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:41:25,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:41:25,446 INFO L87 Difference]: Start difference. First operand 169 states and 230 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 17:41:25,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:41:25,554 INFO L93 Difference]: Finished difference Result 368 states and 519 transitions. [2023-12-02 17:41:25,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:41:25,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2023-12-02 17:41:25,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:41:25,558 INFO L225 Difference]: With dead ends: 368 [2023-12-02 17:41:25,558 INFO L226 Difference]: Without dead ends: 217 [2023-12-02 17:41:25,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:41:25,561 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 57 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:41:25,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 397 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:41:25,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2023-12-02 17:41:25,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 212. [2023-12-02 17:41:25,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 132 states have (on average 1.393939393939394) internal successors, (184), 135 states have internal predecessors, (184), 61 states have call successors, (61), 18 states have call predecessors, (61), 18 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 17:41:25,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 305 transitions. [2023-12-02 17:41:25,588 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 305 transitions. Word has length 62 [2023-12-02 17:41:25,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:41:25,588 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 305 transitions. [2023-12-02 17:41:25,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-02 17:41:25,589 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 305 transitions. [2023-12-02 17:41:25,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 17:41:25,592 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:41:25,592 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:41:25,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:41:25,592 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:41:25,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:41:25,593 INFO L85 PathProgramCache]: Analyzing trace with hash 275312802, now seen corresponding path program 1 times [2023-12-02 17:41:25,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:41:25,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983954392] [2023-12-02 17:41:25,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:25,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:41:25,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:25,745 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:41:25,745 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:41:25,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983954392] [2023-12-02 17:41:25,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983954392] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:41:25,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068076555] [2023-12-02 17:41:25,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:41:25,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:41:25,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:41:25,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:41:25,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:41:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:41:26,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 895 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:41:26,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:41:26,139 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:41:26,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:41:26,200 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:41:26,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068076555] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:41:26,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1207667094] [2023-12-02 17:41:26,218 INFO L159 IcfgInterpreter]: Started Sifa with 52 locations of interest [2023-12-02 17:41:26,218 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:41:26,221 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:41:26,226 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:41:26,226 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:42:08,867 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 17:42:09,060 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2023-12-02 17:42:09,330 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:43:13,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1207667094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:43:13,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:43:13,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [4, 4, 4] total 29 [2023-12-02 17:43:13,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665755425] [2023-12-02 17:43:13,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:43:13,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-12-02 17:43:13,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:43:13,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-12-02 17:43:13,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=725, Unknown=0, NotChecked=0, Total=812 [2023-12-02 17:43:13,888 INFO L87 Difference]: Start difference. First operand 212 states and 305 transitions. Second operand has 24 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 17:43:27,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:43:27,085 INFO L93 Difference]: Finished difference Result 469 states and 706 transitions. [2023-12-02 17:43:27,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-02 17:43:27,085 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 63 [2023-12-02 17:43:27,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:43:27,088 INFO L225 Difference]: With dead ends: 469 [2023-12-02 17:43:27,088 INFO L226 Difference]: Without dead ends: 275 [2023-12-02 17:43:27,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 67.9s TimeCoverageRelationStatistics Valid=91, Invalid=779, Unknown=0, NotChecked=0, Total=870 [2023-12-02 17:43:27,090 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 109 mSDsluCounter, 2619 mSDsCounter, 0 mSdLazyCounter, 2299 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 2309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:43:27,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 2829 Invalid, 2309 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2299 Invalid, 0 Unknown, 0 Unchecked, 9.6s Time] [2023-12-02 17:43:27,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-12-02 17:43:27,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 235. [2023-12-02 17:43:27,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 154 states have (on average 1.4090909090909092) internal successors, (217), 157 states have internal predecessors, (217), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-12-02 17:43:27,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 338 transitions. [2023-12-02 17:43:27,154 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 338 transitions. Word has length 63 [2023-12-02 17:43:27,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:43:27,155 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 338 transitions. [2023-12-02 17:43:27,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 16 states have (on average 2.0625) internal successors, (33), 15 states have internal predecessors, (33), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 17:43:27,155 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 338 transitions. [2023-12-02 17:43:27,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 17:43:27,157 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:43:27,158 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:43:27,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 17:43:27,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:43:27,363 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:43:27,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:43:27,364 INFO L85 PathProgramCache]: Analyzing trace with hash 130462950, now seen corresponding path program 1 times [2023-12-02 17:43:27,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:43:27,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349151037] [2023-12-02 17:43:27,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:43:27,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:43:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:43:27,454 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:43:27,454 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:43:27,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349151037] [2023-12-02 17:43:27,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349151037] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:43:27,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:43:27,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:43:27,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106019691] [2023-12-02 17:43:27,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:43:27,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:43:27,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:43:27,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:43:27,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:43:27,457 INFO L87 Difference]: Start difference. First operand 235 states and 338 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 17:43:27,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:43:27,633 INFO L93 Difference]: Finished difference Result 563 states and 840 transitions. [2023-12-02 17:43:27,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:43:27,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 68 [2023-12-02 17:43:27,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:43:27,636 INFO L225 Difference]: With dead ends: 563 [2023-12-02 17:43:27,636 INFO L226 Difference]: Without dead ends: 352 [2023-12-02 17:43:27,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:43:27,638 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 55 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:43:27,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 402 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:43:27,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2023-12-02 17:43:27,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 347. [2023-12-02 17:43:27,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 241 states have (on average 1.4647302904564314) internal successors, (353), 244 states have internal predecessors, (353), 86 states have call successors, (86), 19 states have call predecessors, (86), 19 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2023-12-02 17:43:27,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 524 transitions. [2023-12-02 17:43:27,732 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 524 transitions. Word has length 68 [2023-12-02 17:43:27,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:43:27,732 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 524 transitions. [2023-12-02 17:43:27,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 17:43:27,733 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 524 transitions. [2023-12-02 17:43:27,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 17:43:27,735 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:43:27,735 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:43:27,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 17:43:27,736 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:43:27,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:43:27,736 INFO L85 PathProgramCache]: Analyzing trace with hash -951440826, now seen corresponding path program 1 times [2023-12-02 17:43:27,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:43:27,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94151832] [2023-12-02 17:43:27,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:43:27,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:43:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:43:27,873 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:43:27,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:43:27,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94151832] [2023-12-02 17:43:27,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94151832] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:43:27,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078758192] [2023-12-02 17:43:27,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:43:27,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:43:27,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:43:27,875 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:43:27,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 17:43:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:43:28,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 922 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:43:28,164 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:43:28,186 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:43:28,187 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:43:28,234 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-02 17:43:28,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078758192] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:43:28,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [199831995] [2023-12-02 17:43:28,238 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2023-12-02 17:43:28,238 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:43:28,239 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:43:28,239 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:43:28,239 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:44:24,815 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 17:44:24,978 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 482 for LOIs [2023-12-02 17:44:27,148 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:44:47,588 WARN L293 SmtUtils]: Spent 6.10s on a formula simplification. DAG size of input: 482 DAG size of output: 483 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:44:56,915 WARN L293 SmtUtils]: Spent 9.17s on a formula simplification. DAG size of input: 512 DAG size of output: 507 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:45:58,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [199831995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:45:58,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:45:58,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [4, 4, 4] total 33 [2023-12-02 17:45:58,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792433147] [2023-12-02 17:45:58,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:45:58,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-12-02 17:45:58,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:45:58,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-12-02 17:45:58,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:45:58,300 INFO L87 Difference]: Start difference. First operand 347 states and 524 transitions. Second operand has 28 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-02 17:46:09,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:46:09,271 INFO L93 Difference]: Finished difference Result 710 states and 1101 transitions. [2023-12-02 17:46:09,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-02 17:46:09,271 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 69 [2023-12-02 17:46:09,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:46:09,274 INFO L225 Difference]: With dead ends: 710 [2023-12-02 17:46:09,274 INFO L226 Difference]: Without dead ends: 426 [2023-12-02 17:46:09,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 91.1s TimeCoverageRelationStatistics Valid=116, Invalid=940, Unknown=0, NotChecked=0, Total=1056 [2023-12-02 17:46:09,276 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 193 mSDsluCounter, 2537 mSDsCounter, 0 mSdLazyCounter, 2250 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 2714 SdHoareTripleChecker+Invalid, 2258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:46:09,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 2714 Invalid, 2258 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2250 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-12-02 17:46:09,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2023-12-02 17:46:09,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 361. [2023-12-02 17:46:09,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 253 states have (on average 1.4624505928853755) internal successors, (370), 256 states have internal predecessors, (370), 87 states have call successors, (87), 20 states have call predecessors, (87), 20 states have return successors, (86), 86 states have call predecessors, (86), 86 states have call successors, (86) [2023-12-02 17:46:09,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 543 transitions. [2023-12-02 17:46:09,394 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 543 transitions. Word has length 69 [2023-12-02 17:46:09,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:46:09,395 INFO L495 AbstractCegarLoop]: Abstraction has 361 states and 543 transitions. [2023-12-02 17:46:09,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 8 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2023-12-02 17:46:09,395 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 543 transitions. [2023-12-02 17:46:09,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 17:46:09,398 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:46:09,398 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:46:09,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 17:46:09,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:46:09,599 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:46:09,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:46:09,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1041730906, now seen corresponding path program 1 times [2023-12-02 17:46:09,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:46:09,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686575780] [2023-12-02 17:46:09,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:46:09,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:46:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:46:09,746 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:46:09,746 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:46:09,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686575780] [2023-12-02 17:46:09,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686575780] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:46:09,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439865150] [2023-12-02 17:46:09,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:46:09,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:46:09,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:46:09,751 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:46:09,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 17:46:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:46:10,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:46:10,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:46:10,062 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:46:10,062 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:46:10,112 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:46:10,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439865150] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:46:10,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1895963626] [2023-12-02 17:46:10,116 INFO L159 IcfgInterpreter]: Started Sifa with 61 locations of interest [2023-12-02 17:46:10,116 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:46:10,116 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:46:10,117 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:46:10,117 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:47:36,340 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 17:47:36,503 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 549 for LOIs [2023-12-02 17:47:38,244 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 473 for LOIs [2023-12-02 17:47:39,018 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2023-12-02 17:47:39,242 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 558 for LOIs [2023-12-02 17:47:41,071 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:48:37,800 WARN L293 SmtUtils]: Spent 11.15s on a formula simplification. DAG size of input: 586 DAG size of output: 581 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:48:48,827 WARN L293 SmtUtils]: Spent 10.65s on a formula simplification. DAG size of input: 587 DAG size of output: 581 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 17:49:36,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1895963626] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:49:36,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:49:36,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2023-12-02 17:49:36,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804122269] [2023-12-02 17:49:36,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:49:36,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2023-12-02 17:49:36,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:49:36,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2023-12-02 17:49:36,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 17:49:36,948 INFO L87 Difference]: Start difference. First operand 361 states and 543 transitions. Second operand has 33 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2023-12-02 17:49:52,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 17:50:01,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:50:01,983 INFO L93 Difference]: Finished difference Result 735 states and 1136 transitions. [2023-12-02 17:50:01,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-02 17:50:01,984 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) Word has length 72 [2023-12-02 17:50:01,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:50:01,986 INFO L225 Difference]: With dead ends: 735 [2023-12-02 17:50:01,986 INFO L226 Difference]: Without dead ends: 451 [2023-12-02 17:50:01,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 118.8s TimeCoverageRelationStatistics Valid=120, Invalid=1362, Unknown=0, NotChecked=0, Total=1482 [2023-12-02 17:50:01,989 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 58 mSDsluCounter, 2809 mSDsCounter, 0 mSdLazyCounter, 3424 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 2988 SdHoareTripleChecker+Invalid, 3434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 3424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.8s IncrementalHoareTripleChecker+Time [2023-12-02 17:50:01,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 2988 Invalid, 3434 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 3424 Invalid, 0 Unknown, 0 Unchecked, 21.8s Time] [2023-12-02 17:50:01,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2023-12-02 17:50:02,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 397. [2023-12-02 17:50:02,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 283 states have (on average 1.4558303886925794) internal successors, (412), 286 states have internal predecessors, (412), 90 states have call successors, (90), 23 states have call predecessors, (90), 23 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-02 17:50:02,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 591 transitions. [2023-12-02 17:50:02,161 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 591 transitions. Word has length 72 [2023-12-02 17:50:02,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:50:02,161 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 591 transitions. [2023-12-02 17:50:02,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.894736842105263) internal successors, (36), 18 states have internal predecessors, (36), 10 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (14), 10 states have call predecessors, (14), 10 states have call successors, (14) [2023-12-02 17:50:02,161 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 591 transitions. [2023-12-02 17:50:02,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 17:50:02,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:50:02,163 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:50:02,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 17:50:02,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:50:02,364 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:50:02,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:50:02,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1167376255, now seen corresponding path program 1 times [2023-12-02 17:50:02,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:50:02,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014266048] [2023-12-02 17:50:02,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:50:02,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:50:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:50:02,446 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:50:02,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:50:02,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014266048] [2023-12-02 17:50:02,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014266048] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:50:02,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955744246] [2023-12-02 17:50:02,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:50:02,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:50:02,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:50:02,447 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:50:02,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 17:50:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:50:02,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 17:50:02,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:50:02,738 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:50:02,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:50:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-02 17:50:02,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955744246] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:50:02,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2014373620] [2023-12-02 17:50:02,791 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2023-12-02 17:50:02,791 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:50:02,791 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:50:02,791 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:50:02,791 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:51:01,788 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 17:51:01,950 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 239 for LOIs [2023-12-02 17:51:02,171 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 17:52:35,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2014373620] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:35,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 17:52:35,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [4, 4, 4] total 37 [2023-12-02 17:52:35,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874218490] [2023-12-02 17:52:35,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:35,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-12-02 17:52:35,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:35,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-12-02 17:52:35,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=1177, Unknown=0, NotChecked=0, Total=1332 [2023-12-02 17:52:35,825 INFO L87 Difference]: Start difference. First operand 397 states and 591 transitions. Second operand has 32 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 23 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 17:52:50,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:50,636 INFO L93 Difference]: Finished difference Result 749 states and 1151 transitions. [2023-12-02 17:52:50,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-02 17:52:50,637 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 23 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) Word has length 71 [2023-12-02 17:52:50,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:50,640 INFO L225 Difference]: With dead ends: 749 [2023-12-02 17:52:50,640 INFO L226 Difference]: Without dead ends: 465 [2023-12-02 17:52:50,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 96.8s TimeCoverageRelationStatistics Valid=159, Invalid=1247, Unknown=0, NotChecked=0, Total=1406 [2023-12-02 17:52:50,642 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 228 mSDsluCounter, 2545 mSDsCounter, 0 mSdLazyCounter, 2525 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 2722 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:50,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 2722 Invalid, 2534 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 2525 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-12-02 17:52:50,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2023-12-02 17:52:50,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 417. [2023-12-02 17:52:50,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 303 states have (on average 1.4587458745874586) internal successors, (442), 306 states have internal predecessors, (442), 90 states have call successors, (90), 23 states have call predecessors, (90), 23 states have return successors, (89), 89 states have call predecessors, (89), 89 states have call successors, (89) [2023-12-02 17:52:50,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 621 transitions. [2023-12-02 17:52:50,825 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 621 transitions. Word has length 71 [2023-12-02 17:52:50,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:50,826 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 621 transitions. [2023-12-02 17:52:50,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 23 states have internal predecessors, (41), 7 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 7 states have call predecessors, (11), 7 states have call successors, (11) [2023-12-02 17:52:50,826 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 621 transitions. [2023-12-02 17:52:50,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 17:52:50,828 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:50,828 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:50,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 17:52:51,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:51,029 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:52:51,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:51,029 INFO L85 PathProgramCache]: Analyzing trace with hash -458115629, now seen corresponding path program 1 times [2023-12-02 17:52:51,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:51,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240875047] [2023-12-02 17:52:51,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:51,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:51,137 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-12-02 17:52:51,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:51,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240875047] [2023-12-02 17:52:51,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240875047] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:51,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:52:51,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:52:51,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584903558] [2023-12-02 17:52:51,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:51,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:52:51,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:51,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:52:51,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:51,139 INFO L87 Difference]: Start difference. First operand 417 states and 621 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 17:52:51,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:51,385 INFO L93 Difference]: Finished difference Result 521 states and 746 transitions. [2023-12-02 17:52:51,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:52:51,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 74 [2023-12-02 17:52:51,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:51,388 INFO L225 Difference]: With dead ends: 521 [2023-12-02 17:52:51,388 INFO L226 Difference]: Without dead ends: 439 [2023-12-02 17:52:51,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:52:51,389 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 119 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:51,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 267 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 17:52:51,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2023-12-02 17:52:51,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 439. [2023-12-02 17:52:51,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 315 states have (on average 1.4412698412698413) internal successors, (454), 318 states have internal predecessors, (454), 94 states have call successors, (94), 30 states have call predecessors, (94), 29 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2023-12-02 17:52:51,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 641 transitions. [2023-12-02 17:52:51,563 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 641 transitions. Word has length 74 [2023-12-02 17:52:51,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:51,564 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 641 transitions. [2023-12-02 17:52:51,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-12-02 17:52:51,564 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 641 transitions. [2023-12-02 17:52:51,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 17:52:51,566 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:51,567 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:51,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 17:52:51,567 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:52:51,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:51,567 INFO L85 PathProgramCache]: Analyzing trace with hash 167139955, now seen corresponding path program 1 times [2023-12-02 17:52:51,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:51,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323728794] [2023-12-02 17:52:51,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:51,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:51,802 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-12-02 17:52:51,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:51,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323728794] [2023-12-02 17:52:51,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323728794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:52:51,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:52:51,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 17:52:51,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054159494] [2023-12-02 17:52:51,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:52:51,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 17:52:51,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:52:51,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 17:52:51,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 17:52:51,805 INFO L87 Difference]: Start difference. First operand 439 states and 641 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-02 17:52:52,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:52:52,557 INFO L93 Difference]: Finished difference Result 593 states and 829 transitions. [2023-12-02 17:52:52,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 17:52:52,558 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 107 [2023-12-02 17:52:52,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:52:52,561 INFO L225 Difference]: With dead ends: 593 [2023-12-02 17:52:52,561 INFO L226 Difference]: Without dead ends: 469 [2023-12-02 17:52:52,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-02 17:52:52,563 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 230 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:52:52,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 456 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 17:52:52,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2023-12-02 17:52:52,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 466. [2023-12-02 17:52:52,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 329 states have (on average 1.419452887537994) internal successors, (467), 333 states have internal predecessors, (467), 100 states have call successors, (100), 37 states have call predecessors, (100), 36 states have return successors, (99), 98 states have call predecessors, (99), 99 states have call successors, (99) [2023-12-02 17:52:52,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 666 transitions. [2023-12-02 17:52:52,850 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 666 transitions. Word has length 107 [2023-12-02 17:52:52,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:52:52,850 INFO L495 AbstractCegarLoop]: Abstraction has 466 states and 666 transitions. [2023-12-02 17:52:52,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2023-12-02 17:52:52,851 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 666 transitions. [2023-12-02 17:52:52,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-02 17:52:52,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:52:52,854 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:52:52,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 17:52:52,854 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:52:52,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:52:52,855 INFO L85 PathProgramCache]: Analyzing trace with hash -287002708, now seen corresponding path program 1 times [2023-12-02 17:52:52,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:52:52,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377657581] [2023-12-02 17:52:52,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:52,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:52:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:53,699 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-02 17:52:53,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:52:53,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377657581] [2023-12-02 17:52:53,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377657581] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:52:53,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [140564874] [2023-12-02 17:52:53,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:52:53,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:52:53,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:52:53,701 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:52:53,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8dec4700-5860-405b-9b36-a3c44e141773/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 17:52:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:52:54,029 INFO L262 TraceCheckSpWp]: Trace formula consists of 1249 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:52:54,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:52:54,100 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-02 17:52:54,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:52:54,213 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-02 17:52:54,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [140564874] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:52:54,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [919063408] [2023-12-02 17:52:54,216 INFO L159 IcfgInterpreter]: Started Sifa with 82 locations of interest [2023-12-02 17:52:54,217 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:52:54,217 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:52:54,217 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:52:54,217 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:53:48,232 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 225 for LOIs [2023-12-02 17:53:48,394 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 250 for LOIs [2023-12-02 17:53:48,641 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 248 for LOIs [2023-12-02 17:53:53,972 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 291 for LOIs [2023-12-02 17:54:22,184 INFO L197 IcfgInterpreter]: Interpreting procedure queue with input of size 227 for LOIs [2023-12-02 17:54:22,284 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailFrom with input of size 249 for LOIs [2023-12-02 17:54:22,491 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 296 for LOIs [2023-12-02 17:54:24,520 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailTo with input of size 252 for LOIs [2023-12-02 17:54:25,737 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 280 for LOIs [2023-12-02 17:54:27,115 INFO L197 IcfgInterpreter]: Interpreting procedure isEncrypted with input of size 224 for LOIs [2023-12-02 17:54:27,870 INFO L180 IcfgInterpreter]: Interpretation finished