./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec6_product30.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec6_product30.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire --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 c6648e04749112dcff3ed26da66b003a84ec072cad34992d8bd41fd0d54f135f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:23:39,846 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:23:39,971 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:23:39,981 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:23:39,982 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:23:40,022 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:23:40,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:23:40,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:23:40,025 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:23:40,031 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:23:40,031 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:23:40,032 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:23:40,032 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:23:40,034 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:23:40,035 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:23:40,035 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:23:40,036 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:23:40,036 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:23:40,037 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:23:40,037 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:23:40,038 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:23:40,039 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:23:40,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:23:40,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:23:40,041 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:23:40,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:23:40,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:23:40,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:23:40,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:23:40,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:23:40,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:23:40,045 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:23:40,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:23:40,046 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:23:40,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:23:40,047 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:23:40,047 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:23:40,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:40,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:23:40,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:23:40,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:23:40,049 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:23:40,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:23:40,050 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:23:40,051 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:23:40,051 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:23:40,051 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:23:40,051 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_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c6648e04749112dcff3ed26da66b003a84ec072cad34992d8bd41fd0d54f135f [2023-11-23 21:23:40,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:23:40,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:23:40,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:23:40,416 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:23:40,417 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:23:40,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/product-lines/email_spec6_product30.cil.c [2023-11-23 21:23:43,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:23:44,010 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:23:44,011 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/sv-benchmarks/c/product-lines/email_spec6_product30.cil.c [2023-11-23 21:23:44,044 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/data/d030ff24d/d31f0021b3a9431580a1c04907419385/FLAG8b820e4a7 [2023-11-23 21:23:44,063 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/data/d030ff24d/d31f0021b3a9431580a1c04907419385 [2023-11-23 21:23:44,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:23:44,072 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:23:44,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:44,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:23:44,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:23:44,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:44" (1/1) ... [2023-11-23 21:23:44,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b1aed5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:44, skipping insertion in model container [2023-11-23 21:23:44,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:23:44" (1/1) ... [2023-11-23 21:23:44,167 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:23:44,752 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_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/sv-benchmarks/c/product-lines/email_spec6_product30.cil.c[64728,64741] [2023-11-23 21:23:44,756 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:44,784 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:23:44,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2023-11-23 21:23:44,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [273] [2023-11-23 21:23:44,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [322] [2023-11-23 21:23:44,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [1402] [2023-11-23 21:23:44,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptDecrypt_spec.i","") [1814] [2023-11-23 21:23:44,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1864] [2023-11-23 21:23:44,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1881] [2023-11-23 21:23:44,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [2245] [2023-11-23 21:23:44,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2381] [2023-11-23 21:23:44,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2747] [2023-11-23 21:23:44,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3022] [2023-11-23 21:23:44,971 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_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/sv-benchmarks/c/product-lines/email_spec6_product30.cil.c[64728,64741] [2023-11-23 21:23:44,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:23:45,007 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:23:45,015 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:23:45,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45 WrapperNode [2023-11-23 21:23:45,016 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:23:45,017 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:23:45,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:23:45,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:23:45,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,087 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,142 INFO L138 Inliner]: procedures = 132, calls = 225, calls flagged for inlining = 61, calls inlined = 51, statements flattened = 946 [2023-11-23 21:23:45,142 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:23:45,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:23:45,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:23:45,143 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:23:45,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,158 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,158 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,189 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,195 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,209 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:23:45,210 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:23:45,210 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:23:45,210 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:23:45,211 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45" (1/1) ... [2023-11-23 21:23:45,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:23:45,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:23:45,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:23:45,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:23:45,297 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2023-11-23 21:23:45,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2023-11-23 21:23:45,302 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-23 21:23:45,302 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-23 21:23:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-23 21:23:45,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-23 21:23:45,303 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-23 21:23:45,303 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-23 21:23:45,304 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-23 21:23:45,305 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-23 21:23:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-23 21:23:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-23 21:23:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-23 21:23:45,306 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-23 21:23:45,306 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-23 21:23:45,307 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-23 21:23:45,307 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2023-11-23 21:23:45,308 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2023-11-23 21:23:45,308 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-23 21:23:45,309 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-23 21:23:45,309 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-23 21:23:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-23 21:23:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-23 21:23:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-23 21:23:45,310 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-23 21:23:45,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:23:45,311 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2023-11-23 21:23:45,317 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2023-11-23 21:23:45,317 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2023-11-23 21:23:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2023-11-23 21:23:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-23 21:23:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-23 21:23:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-23 21:23:45,318 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-23 21:23:45,318 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-23 21:23:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-23 21:23:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2023-11-23 21:23:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2023-11-23 21:23:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-23 21:23:45,319 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-23 21:23:45,319 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-23 21:23:45,320 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-23 21:23:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-23 21:23:45,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-23 21:23:45,320 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-23 21:23:45,320 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-23 21:23:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:23:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-23 21:23:45,321 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-23 21:23:45,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:23:45,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:23:45,525 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:23:45,528 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:23:46,461 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:23:47,045 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:23:47,045 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:23:47,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:47 BoogieIcfgContainer [2023-11-23 21:23:47,047 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:23:47,051 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:23:47,051 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:23:47,055 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:23:47,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:23:44" (1/3) ... [2023-11-23 21:23:47,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da0a654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:47, skipping insertion in model container [2023-11-23 21:23:47,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:23:45" (2/3) ... [2023-11-23 21:23:47,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6da0a654 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:23:47, skipping insertion in model container [2023-11-23 21:23:47,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:23:47" (3/3) ... [2023-11-23 21:23:47,061 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec6_product30.cil.c [2023-11-23 21:23:47,085 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:23:47,086 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:23:47,161 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:23:47,169 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;@656a2188, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:23:47,170 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:23:47,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 113 states have (on average 1.3274336283185841) internal successors, (150), 117 states have internal predecessors, (150), 55 states have call successors, (55), 23 states have call predecessors, (55), 23 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) [2023-11-23 21:23:47,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-23 21:23:47,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:47,197 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:47,197 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:47,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:47,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1353513952, now seen corresponding path program 1 times [2023-11-23 21:23:47,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:47,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583163603] [2023-11-23 21:23:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:47,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:47,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:47,708 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:23:47,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:47,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583163603] [2023-11-23 21:23:47,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583163603] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:47,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:47,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:23:47,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635375225] [2023-11-23 21:23:47,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:47,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:23:47,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:47,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:23:47,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:23:47,755 INFO L87 Difference]: Start difference. First operand has 193 states, 113 states have (on average 1.3274336283185841) internal successors, (150), 117 states have internal predecessors, (150), 55 states have call successors, (55), 23 states have call predecessors, (55), 23 states have return successors, (55), 55 states have call predecessors, (55), 55 states have call successors, (55) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:23:47,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:47,963 INFO L93 Difference]: Finished difference Result 303 states and 398 transitions. [2023-11-23 21:23:47,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:23:47,966 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 80 [2023-11-23 21:23:47,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:47,981 INFO L225 Difference]: With dead ends: 303 [2023-11-23 21:23:47,981 INFO L226 Difference]: Without dead ends: 190 [2023-11-23 21:23:47,988 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 [2023-11-23 21:23:47,992 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:47,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:23:48,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-23 21:23:48,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2023-11-23 21:23:48,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 111 states have (on average 1.2972972972972974) internal successors, (144), 114 states have internal predecessors, (144), 55 states have call successors, (55), 23 states have call predecessors, (55), 23 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-23 21:23:48,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 253 transitions. [2023-11-23 21:23:48,064 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 253 transitions. Word has length 80 [2023-11-23 21:23:48,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:48,066 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 253 transitions. [2023-11-23 21:23:48,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:23:48,067 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 253 transitions. [2023-11-23 21:23:48,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-23 21:23:48,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:48,075 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:48,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:23:48,076 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:48,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:48,077 INFO L85 PathProgramCache]: Analyzing trace with hash 514916234, now seen corresponding path program 1 times [2023-11-23 21:23:48,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:48,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602752805] [2023-11-23 21:23:48,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:48,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:48,477 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:23:48,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:48,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602752805] [2023-11-23 21:23:48,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602752805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:48,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:48,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:23:48,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466837427] [2023-11-23 21:23:48,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:48,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:48,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:48,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:48,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:48,488 INFO L87 Difference]: Start difference. First operand 190 states and 253 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:23:48,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:48,654 INFO L93 Difference]: Finished difference Result 299 states and 386 transitions. [2023-11-23 21:23:48,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:48,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 81 [2023-11-23 21:23:48,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:48,662 INFO L225 Difference]: With dead ends: 299 [2023-11-23 21:23:48,662 INFO L226 Difference]: Without dead ends: 192 [2023-11-23 21:23:48,671 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 [2023-11-23 21:23:48,673 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 0 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:23:48,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 437 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:23:48,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-11-23 21:23:48,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 192. [2023-11-23 21:23:48,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 113 states have (on average 1.2920353982300885) internal successors, (146), 116 states have internal predecessors, (146), 55 states have call successors, (55), 23 states have call predecessors, (55), 23 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-23 21:23:48,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 255 transitions. [2023-11-23 21:23:48,698 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 255 transitions. Word has length 81 [2023-11-23 21:23:48,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:48,699 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 255 transitions. [2023-11-23 21:23:48,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:23:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 255 transitions. [2023-11-23 21:23:48,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 21:23:48,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:48,702 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:48,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:23:48,703 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:48,703 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:48,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1284979136, now seen corresponding path program 1 times [2023-11-23 21:23:48,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:48,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343506524] [2023-11-23 21:23:48,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:48,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:48,845 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:23:48,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:48,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343506524] [2023-11-23 21:23:48,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343506524] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:23:48,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:23:48,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:23:48,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067906965] [2023-11-23 21:23:48,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:23:48,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:23:48,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:23:48,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:23:48,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:23:48,849 INFO L87 Difference]: Start difference. First operand 192 states and 255 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:23:48,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:23:48,961 INFO L93 Difference]: Finished difference Result 414 states and 569 transitions. [2023-11-23 21:23:48,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:23:48,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 86 [2023-11-23 21:23:48,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:23:48,964 INFO L225 Difference]: With dead ends: 414 [2023-11-23 21:23:48,965 INFO L226 Difference]: Without dead ends: 240 [2023-11-23 21:23:48,966 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 [2023-11-23 21:23:48,967 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 57 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 446 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 [2023-11-23 21:23:48,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 446 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:23:48,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-23 21:23:48,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 235. [2023-11-23 21:23:48,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 145 states have (on average 1.3724137931034484) internal successors, (199), 148 states have internal predecessors, (199), 66 states have call successors, (66), 23 states have call predecessors, (66), 23 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2023-11-23 21:23:48,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 330 transitions. [2023-11-23 21:23:48,993 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 330 transitions. Word has length 86 [2023-11-23 21:23:48,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:23:48,998 INFO L495 AbstractCegarLoop]: Abstraction has 235 states and 330 transitions. [2023-11-23 21:23:48,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-23 21:23:48,998 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 330 transitions. [2023-11-23 21:23:49,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-11-23 21:23:49,000 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:23:49,001 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:23:49,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:23:49,001 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:23:49,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:23:49,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1173036451, now seen corresponding path program 1 times [2023-11-23 21:23:49,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:23:49,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216806215] [2023-11-23 21:23:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:49,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:23:49,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:49,220 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:23:49,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:23:49,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216806215] [2023-11-23 21:23:49,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216806215] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:23:49,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947420419] [2023-11-23 21:23:49,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:23:49,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:23:49,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:23:49,224 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:23:49,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69e6fa7f-f448-4ea5-9e0c-65e019d50cb4/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:23:49,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:23:49,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 1076 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:23:49,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:23:49,727 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:23:49,728 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:23:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-23 21:23:49,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947420419] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:23:49,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1782766984] [2023-11-23 21:23:49,865 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2023-11-23 21:23:49,866 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:23:49,872 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:23:49,878 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:23:49,879 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:24:38,173 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 238 for LOIs [2023-11-23 21:24:38,547 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 240 for LOIs [2023-11-23 21:24:38,791 INFO L180 IcfgInterpreter]: Interpretation finished