./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec11_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec11_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ --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 70e213904f46d9e57b153e0058e447b0a5def856d61642628bc56ad0035cdccb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:14:31,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:14:31,875 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:14:31,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:14:31,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:14:31,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:14:31,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:14:31,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:14:31,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:14:31,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:14:31,939 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:14:31,940 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:14:31,941 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:14:31,943 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:14:31,943 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:14:31,944 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:14:31,944 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:14:31,945 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:14:31,945 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:14:31,946 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:14:31,947 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:14:31,947 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:14:31,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:14:31,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:14:31,950 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:14:31,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:14:31,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:14:31,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:14:31,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:14:31,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:14:31,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:14:31,955 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:14:31,955 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:14:31,956 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:14:31,956 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:14:31,956 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:14:31,957 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:31,957 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:14:31,958 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:14:31,958 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:14:31,958 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:14:31,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:14:31,959 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:14:31,960 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:14:31,960 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:14:31,961 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_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70e213904f46d9e57b153e0058e447b0a5def856d61642628bc56ad0035cdccb [2023-11-19 04:14:32,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:14:32,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:14:32,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:14:32,298 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:14:32,298 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:14:32,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/product-lines/email_spec11_product37.cil.c [2023-11-19 04:14:35,420 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:14:35,799 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:14:35,800 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/sv-benchmarks/c/product-lines/email_spec11_product37.cil.c [2023-11-19 04:14:35,832 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/data/2320a58d1/2c68f7065cc748ea83cef06adfd29732/FLAG3d2c2fb1b [2023-11-19 04:14:35,848 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/data/2320a58d1/2c68f7065cc748ea83cef06adfd29732 [2023-11-19 04:14:35,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:14:35,853 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:14:35,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:35,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:14:35,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:14:35,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:35" (1/1) ... [2023-11-19 04:14:35,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@477c0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:35, skipping insertion in model container [2023-11-19 04:14:35,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:14:35" (1/1) ... [2023-11-19 04:14:35,933 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:14:36,515 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_4c04af71-ccd7-48ce-8515-66cc83901f84/sv-benchmarks/c/product-lines/email_spec11_product37.cil.c[43755,43768] [2023-11-19 04:14:36,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:36,674 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:14:36,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-11-19 04:14:36,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [66] [2023-11-19 04:14:36,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [295] [2023-11-19 04:14:36,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [661] [2023-11-19 04:14:36,689 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1741] [2023-11-19 04:14:36,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptAutoResponder_spec.i","") [1790] [2023-11-19 04:14:36,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1812] [2023-11-19 04:14:36,690 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1821] [2023-11-19 04:14:36,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2233] [2023-11-19 04:14:36,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [2524] [2023-11-19 04:14:36,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2753] [2023-11-19 04:14:36,781 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_4c04af71-ccd7-48ce-8515-66cc83901f84/sv-benchmarks/c/product-lines/email_spec11_product37.cil.c[43755,43768] [2023-11-19 04:14:36,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:14:36,837 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:14:36,846 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:14:36,846 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36 WrapperNode [2023-11-19 04:14:36,846 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:14:36,848 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:36,848 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:14:36,848 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:14:36,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36" (1/1) ... [2023-11-19 04:14:36,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36" (1/1) ... [2023-11-19 04:14:36,991 INFO L138 Inliner]: procedures = 124, calls = 186, calls flagged for inlining = 51, calls inlined = 46, statements flattened = 843 [2023-11-19 04:14:36,992 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:14:36,992 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:14:36,993 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:14:36,993 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:14:37,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36" (1/1) ... [2023-11-19 04:14:37,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36" (1/1) ... [2023-11-19 04:14:37,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36" (1/1) ... [2023-11-19 04:14:37,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36" (1/1) ... [2023-11-19 04:14:37,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36" (1/1) ... [2023-11-19 04:14:37,048 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36" (1/1) ... [2023-11-19 04:14:37,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36" (1/1) ... [2023-11-19 04:14:37,068 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36" (1/1) ... [2023-11-19 04:14:37,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:14:37,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:14:37,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:14:37,079 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:14:37,080 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36" (1/1) ... [2023-11-19 04:14:37,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:14:37,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:14:37,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:14:37,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:14:37,164 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-19 04:14:37,165 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-19 04:14:37,165 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-19 04:14:37,165 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-19 04:14:37,165 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-19 04:14:37,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-19 04:14:37,166 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-19 04:14:37,166 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-19 04:14:37,167 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-19 04:14:37,167 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-19 04:14:37,167 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-19 04:14:37,167 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-19 04:14:37,168 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-19 04:14:37,168 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-19 04:14:37,168 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-19 04:14:37,168 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-19 04:14:37,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-19 04:14:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:14:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-19 04:14:37,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-19 04:14:37,169 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-19 04:14:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-19 04:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-19 04:14:37,170 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-19 04:14:37,170 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-19 04:14:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-19 04:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-19 04:14:37,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-19 04:14:37,171 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-19 04:14:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-19 04:14:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:14:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-19 04:14:37,172 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-19 04:14:37,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:14:37,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:14:37,446 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:14:37,449 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:14:38,268 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:14:38,715 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:14:38,715 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:14:38,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:38 BoogieIcfgContainer [2023-11-19 04:14:38,722 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:14:38,724 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:14:38,724 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:14:38,727 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:14:38,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:14:35" (1/3) ... [2023-11-19 04:14:38,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4744ecac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:38, skipping insertion in model container [2023-11-19 04:14:38,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:14:36" (2/3) ... [2023-11-19 04:14:38,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4744ecac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:14:38, skipping insertion in model container [2023-11-19 04:14:38,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:14:38" (3/3) ... [2023-11-19 04:14:38,730 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec11_product37.cil.c [2023-11-19 04:14:38,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:14:38,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:14:38,802 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:14:38,810 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;@7f73402d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:14:38,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:14:38,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 141 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 86 states have internal predecessors, (114), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-19 04:14:38,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-19 04:14:38,828 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:38,829 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] [2023-11-19 04:14:38,829 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:14:38,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:38,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1742977683, now seen corresponding path program 1 times [2023-11-19 04:14:38,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:38,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899170050] [2023-11-19 04:14:38,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:38,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:39,245 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 04:14:39,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:39,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899170050] [2023-11-19 04:14:39,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899170050] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:39,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:39,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:14:39,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191707944] [2023-11-19 04:14:39,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:39,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 04:14:39,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:39,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 04:14:39,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 04:14:39,304 INFO L87 Difference]: Start difference. First operand has 141 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 86 states have internal predecessors, (114), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2023-11-19 04:14:39,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:39,455 INFO L93 Difference]: Finished difference Result 199 states and 266 transitions. [2023-11-19 04:14:39,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 04:14:39,458 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 54 [2023-11-19 04:14:39,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:39,473 INFO L225 Difference]: With dead ends: 199 [2023-11-19 04:14:39,473 INFO L226 Difference]: Without dead ends: 138 [2023-11-19 04:14:39,479 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 [2023-11-19 04:14:39,483 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:39,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:14:39,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-11-19 04:14:39,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2023-11-19 04:14:39,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 82 states have (on average 1.3170731707317074) internal successors, (108), 83 states have internal predecessors, (108), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-19 04:14:39,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 187 transitions. [2023-11-19 04:14:39,570 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 187 transitions. Word has length 54 [2023-11-19 04:14:39,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:39,573 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 187 transitions. [2023-11-19 04:14:39,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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) [2023-11-19 04:14:39,575 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 187 transitions. [2023-11-19 04:14:39,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 04:14:39,585 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:39,586 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] [2023-11-19 04:14:39,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:14:39,587 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:14:39,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:39,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1541810193, now seen corresponding path program 1 times [2023-11-19 04:14:39,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:39,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797257109] [2023-11-19 04:14:39,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:39,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:39,813 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 04:14:39,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:39,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797257109] [2023-11-19 04:14:39,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797257109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:39,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:39,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:14:39,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342710799] [2023-11-19 04:14:39,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:39,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:39,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:39,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:39,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:39,818 INFO L87 Difference]: Start difference. First operand 138 states and 187 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-11-19 04:14:39,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:39,910 INFO L93 Difference]: Finished difference Result 195 states and 254 transitions. [2023-11-19 04:14:39,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:14:39,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 55 [2023-11-19 04:14:39,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:39,913 INFO L225 Difference]: With dead ends: 195 [2023-11-19 04:14:39,913 INFO L226 Difference]: Without dead ends: 140 [2023-11-19 04:14:39,915 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 [2023-11-19 04:14:39,917 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:39,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 321 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:14:39,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-11-19 04:14:39,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2023-11-19 04:14:39,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 84 states have (on average 1.3095238095238095) internal successors, (110), 85 states have internal predecessors, (110), 40 states have call successors, (40), 15 states have call predecessors, (40), 15 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-19 04:14:39,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 189 transitions. [2023-11-19 04:14:39,934 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 189 transitions. Word has length 55 [2023-11-19 04:14:39,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:39,935 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 189 transitions. [2023-11-19 04:14:39,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-11-19 04:14:39,936 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 189 transitions. [2023-11-19 04:14:39,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-19 04:14:39,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:39,939 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] [2023-11-19 04:14:39,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:14:39,940 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:14:39,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:39,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1039045930, now seen corresponding path program 1 times [2023-11-19 04:14:39,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:39,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367401138] [2023-11-19 04:14:39,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:39,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:39,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:40,116 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 04:14:40,116 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:40,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367401138] [2023-11-19 04:14:40,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367401138] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:14:40,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:14:40,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:14:40,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873983294] [2023-11-19 04:14:40,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:14:40,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:14:40,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:14:40,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:14:40,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:14:40,124 INFO L87 Difference]: Start difference. First operand 140 states and 189 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-11-19 04:14:40,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:14:40,237 INFO L93 Difference]: Finished difference Result 310 states and 437 transitions. [2023-11-19 04:14:40,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:14:40,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 60 [2023-11-19 04:14:40,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:14:40,241 INFO L225 Difference]: With dead ends: 310 [2023-11-19 04:14:40,241 INFO L226 Difference]: Without dead ends: 188 [2023-11-19 04:14:40,243 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 [2023-11-19 04:14:40,244 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 57 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 04:14:40,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 336 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 04:14:40,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-19 04:14:40,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 183. [2023-11-19 04:14:40,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 116 states have (on average 1.4051724137931034) internal successors, (163), 117 states have internal predecessors, (163), 51 states have call successors, (51), 15 states have call predecessors, (51), 15 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-19 04:14:40,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 264 transitions. [2023-11-19 04:14:40,270 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 264 transitions. Word has length 60 [2023-11-19 04:14:40,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:14:40,270 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 264 transitions. [2023-11-19 04:14:40,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2023-11-19 04:14:40,271 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 264 transitions. [2023-11-19 04:14:40,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-19 04:14:40,274 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:14:40,274 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] [2023-11-19 04:14:40,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:14:40,275 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:14:40,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:14:40,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1380719275, now seen corresponding path program 1 times [2023-11-19 04:14:40,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:14:40,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926413623] [2023-11-19 04:14:40,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:40,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:14:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:40,530 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 04:14:40,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:14:40,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926413623] [2023-11-19 04:14:40,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926413623] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 04:14:40,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449984670] [2023-11-19 04:14:40,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:14:40,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 04:14:40,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:14:40,537 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 04:14:40,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c04af71-ccd7-48ce-8515-66cc83901f84/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 04:14:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:14:40,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 04:14:40,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:14:41,012 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 04:14:41,013 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 04:14:41,083 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 04:14:41,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449984670] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 04:14:41,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [407715360] [2023-11-19 04:14:41,107 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2023-11-19 04:14:41,107 INFO L166 IcfgInterpreter]: Building call graph [2023-11-19 04:14:41,111 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-19 04:14:41,117 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-19 04:14:41,117 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-19 04:15:34,642 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 223 for LOIs [2023-11-19 04:15:34,813 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 228 for LOIs [2023-11-19 04:15:35,042 INFO L180 IcfgInterpreter]: Interpretation finished