./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec7_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec7_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje --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 2fde44ff6f2aac911c03318478d3361889c0f9ce519411733d9129672caa5fa0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:21:47,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:21:47,246 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:21:47,252 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:21:47,253 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:21:47,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:21:47,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:21:47,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:21:47,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:21:47,286 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:21:47,286 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:21:47,287 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:21:47,288 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:21:47,288 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:21:47,289 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:21:47,289 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:21:47,290 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:21:47,290 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:21:47,291 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:21:47,292 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:21:47,292 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:21:47,293 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:21:47,294 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:21:47,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:21:47,295 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:21:47,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:21:47,295 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:21:47,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:21:47,300 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:21:47,301 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:21:47,302 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:21:47,305 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:21:47,306 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:21:47,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:21:47,307 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:21:47,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:21:47,308 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:21:47,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:21:47,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:21:47,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:21:47,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:21:47,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:21:47,313 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:21:47,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:21:47,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:21:47,315 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:21:47,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:21:47,316 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_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fde44ff6f2aac911c03318478d3361889c0f9ce519411733d9129672caa5fa0 [2024-11-09 05:21:47,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:21:47,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:21:47,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:21:47,749 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:21:47,750 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:21:47,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/product-lines/email_spec7_product13.cil.c Unable to find full path for "g++" [2024-11-09 05:21:50,095 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:21:50,572 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:21:50,573 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/sv-benchmarks/c/product-lines/email_spec7_product13.cil.c [2024-11-09 05:21:50,609 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/data/fdb6c57f3/350f6ad844594732beb1f94f6e051c73/FLAG0992c3915 [2024-11-09 05:21:50,630 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/data/fdb6c57f3/350f6ad844594732beb1f94f6e051c73 [2024-11-09 05:21:50,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:21:50,640 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:21:50,642 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:21:50,642 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:21:50,649 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:21:50,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:21:50" (1/1) ... [2024-11-09 05:21:50,651 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18271fbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:50, skipping insertion in model container [2024-11-09 05:21:50,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:21:50" (1/1) ... [2024-11-09 05:21:50,728 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:21:51,189 WARN L250 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_5f33faf7-3609-4500-9ef9-b297b9f72756/sv-benchmarks/c/product-lines/email_spec7_product13.cil.c[16810,16823] [2024-11-09 05:21:51,496 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:21:51,535 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:21:51,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EncryptVerify_spec.i","") [48] [2024-11-09 05:21:51,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [79] [2024-11-09 05:21:51,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [371] [2024-11-09 05:21:51,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [737] [2024-11-09 05:21:51,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [746] [2024-11-09 05:21:51,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [781] [2024-11-09 05:21:51,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [1193] [2024-11-09 05:21:51,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [1210] [2024-11-09 05:21:51,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1308] [2024-11-09 05:21:51,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1562] [2024-11-09 05:21:51,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2631] [2024-11-09 05:21:51,599 WARN L250 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_5f33faf7-3609-4500-9ef9-b297b9f72756/sv-benchmarks/c/product-lines/email_spec7_product13.cil.c[16810,16823] [2024-11-09 05:21:51,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:21:51,738 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:21:51,738 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51 WrapperNode [2024-11-09 05:21:51,738 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:21:51,739 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:21:51,739 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:21:51,739 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:21:51,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51" (1/1) ... [2024-11-09 05:21:51,772 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51" (1/1) ... [2024-11-09 05:21:51,824 INFO L138 Inliner]: procedures = 124, calls = 176, calls flagged for inlining = 54, calls inlined = 45, statements flattened = 850 [2024-11-09 05:21:51,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:21:51,825 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:21:51,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:21:51,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:21:51,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51" (1/1) ... [2024-11-09 05:21:51,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51" (1/1) ... [2024-11-09 05:21:51,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51" (1/1) ... [2024-11-09 05:21:51,845 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51" (1/1) ... [2024-11-09 05:21:51,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51" (1/1) ... [2024-11-09 05:21:51,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51" (1/1) ... [2024-11-09 05:21:51,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51" (1/1) ... [2024-11-09 05:21:51,885 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51" (1/1) ... [2024-11-09 05:21:51,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:21:51,901 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:21:51,901 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:21:51,902 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:21:51,903 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51" (1/1) ... [2024-11-09 05:21:51,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:21:51,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:51,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:21:51,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:21:51,989 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2024-11-09 05:21:51,990 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2024-11-09 05:21:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2024-11-09 05:21:51,991 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2024-11-09 05:21:51,991 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2024-11-09 05:21:51,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2024-11-09 05:21:51,992 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2024-11-09 05:21:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2024-11-09 05:21:51,993 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2024-11-09 05:21:51,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2024-11-09 05:21:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2024-11-09 05:21:51,994 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2024-11-09 05:21:51,994 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2024-11-09 05:21:51,995 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2024-11-09 05:21:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2024-11-09 05:21:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2024-11-09 05:21:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:21:51,996 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2024-11-09 05:21:51,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2024-11-09 05:21:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2024-11-09 05:21:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2024-11-09 05:21:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2024-11-09 05:21:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2024-11-09 05:21:51,997 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2024-11-09 05:21:51,997 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2024-11-09 05:21:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2024-11-09 05:21:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2024-11-09 05:21:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2024-11-09 05:21:51,998 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2024-11-09 05:21:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:21:51,998 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2024-11-09 05:21:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2024-11-09 05:21:51,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:21:51,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:21:52,261 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:21:52,265 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:21:53,440 INFO L? ?]: Removed 362 outVars from TransFormulas that were not future-live. [2024-11-09 05:21:53,441 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:21:54,156 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:21:54,157 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:21:54,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:21:54 BoogieIcfgContainer [2024-11-09 05:21:54,157 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:21:54,162 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:21:54,163 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:21:54,167 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:21:54,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:21:50" (1/3) ... [2024-11-09 05:21:54,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b0a79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:21:54, skipping insertion in model container [2024-11-09 05:21:54,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:21:51" (2/3) ... [2024-11-09 05:21:54,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b0a79d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:21:54, skipping insertion in model container [2024-11-09 05:21:54,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:21:54" (3/3) ... [2024-11-09 05:21:54,173 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec7_product13.cil.c [2024-11-09 05:21:54,199 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:21:54,200 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:21:54,308 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:21:54,318 INFO L333 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, 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;@c154a54, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:21:54,318 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:21:54,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 133 states, 81 states have (on average 1.382716049382716) internal successors, (112), 83 states have internal predecessors, (112), 35 states have call successors, (35), 15 states have call predecessors, (35), 15 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-09 05:21:54,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 05:21:54,342 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:54,343 INFO L215 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] [2024-11-09 05:21:54,344 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:21:54,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:54,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1331124478, now seen corresponding path program 1 times [2024-11-09 05:21:54,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:54,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394901610] [2024-11-09 05:21:54,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:54,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:54,875 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:21:54,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:54,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394901610] [2024-11-09 05:21:54,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394901610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:54,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:54,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:21:54,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58423444] [2024-11-09 05:21:54,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:54,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:21:54,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:54,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:21:54,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:21:54,913 INFO L87 Difference]: Start difference. First operand has 133 states, 81 states have (on average 1.382716049382716) internal successors, (112), 83 states have internal predecessors, (112), 35 states have call successors, (35), 15 states have call predecessors, (35), 15 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:21:55,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:55,036 INFO L93 Difference]: Finished difference Result 183 states and 242 transitions. [2024-11-09 05:21:55,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:21:55,039 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 50 [2024-11-09 05:21:55,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:55,050 INFO L225 Difference]: With dead ends: 183 [2024-11-09 05:21:55,050 INFO L226 Difference]: Without dead ends: 130 [2024-11-09 05:21:55,053 INFO L431 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 [2024-11-09 05:21:55,059 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:55,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 156 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:21:55,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-09 05:21:55,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-11-09 05:21:55,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 79 states have (on average 1.3417721518987342) internal successors, (106), 80 states have internal predecessors, (106), 35 states have call successors, (35), 15 states have call predecessors, (35), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-09 05:21:55,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 175 transitions. [2024-11-09 05:21:55,117 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 175 transitions. Word has length 50 [2024-11-09 05:21:55,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:55,120 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 175 transitions. [2024-11-09 05:21:55,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:21:55,121 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 175 transitions. [2024-11-09 05:21:55,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 05:21:55,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:55,127 INFO L215 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] [2024-11-09 05:21:55,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:21:55,128 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:21:55,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:55,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1935795458, now seen corresponding path program 1 times [2024-11-09 05:21:55,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:55,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789053752] [2024-11-09 05:21:55,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:55,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:55,490 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:21:55,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:55,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789053752] [2024-11-09 05:21:55,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789053752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:55,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:55,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:21:55,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728511153] [2024-11-09 05:21:55,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:55,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:21:55,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:55,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:21:55,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:55,495 INFO L87 Difference]: Start difference. First operand 130 states and 175 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:21:55,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:55,629 INFO L93 Difference]: Finished difference Result 179 states and 230 transitions. [2024-11-09 05:21:55,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:21:55,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 51 [2024-11-09 05:21:55,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:55,633 INFO L225 Difference]: With dead ends: 179 [2024-11-09 05:21:55,636 INFO L226 Difference]: Without dead ends: 132 [2024-11-09 05:21:55,637 INFO L431 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 [2024-11-09 05:21:55,638 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:55,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 305 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:21:55,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-09 05:21:55,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2024-11-09 05:21:55,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 81 states have (on average 1.3333333333333333) internal successors, (108), 82 states have internal predecessors, (108), 35 states have call successors, (35), 15 states have call predecessors, (35), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-11-09 05:21:55,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 177 transitions. [2024-11-09 05:21:55,671 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 177 transitions. Word has length 51 [2024-11-09 05:21:55,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:55,671 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 177 transitions. [2024-11-09 05:21:55,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:21:55,672 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 177 transitions. [2024-11-09 05:21:55,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:21:55,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:55,677 INFO L215 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] [2024-11-09 05:21:55,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:21:55,677 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:21:55,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:55,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1139968406, now seen corresponding path program 1 times [2024-11-09 05:21:55,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:55,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932874206] [2024-11-09 05:21:55,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:55,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:55,857 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:21:55,858 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:55,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932874206] [2024-11-09 05:21:55,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932874206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:21:55,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:21:55,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:21:55,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341870966] [2024-11-09 05:21:55,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:21:55,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:21:55,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:55,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:21:55,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:21:55,861 INFO L87 Difference]: Start difference. First operand 132 states and 177 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:21:55,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:21:55,972 INFO L93 Difference]: Finished difference Result 294 states and 413 transitions. [2024-11-09 05:21:55,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:21:55,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 56 [2024-11-09 05:21:55,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:21:55,975 INFO L225 Difference]: With dead ends: 294 [2024-11-09 05:21:55,975 INFO L226 Difference]: Without dead ends: 180 [2024-11-09 05:21:55,979 INFO L431 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 [2024-11-09 05:21:55,981 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 57 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:21:55,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 307 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:21:55,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-09 05:21:56,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 175. [2024-11-09 05:21:56,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 113 states have (on average 1.424778761061947) internal successors, (161), 114 states have internal predecessors, (161), 46 states have call successors, (46), 15 states have call predecessors, (46), 15 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 05:21:56,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 252 transitions. [2024-11-09 05:21:56,008 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 252 transitions. Word has length 56 [2024-11-09 05:21:56,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:21:56,008 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 252 transitions. [2024-11-09 05:21:56,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 05:21:56,009 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 252 transitions. [2024-11-09 05:21:56,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 05:21:56,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:21:56,012 INFO L215 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] [2024-11-09 05:21:56,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:21:56,012 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:21:56,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:56,017 INFO L85 PathProgramCache]: Analyzing trace with hash 685514466, now seen corresponding path program 1 times [2024-11-09 05:21:56,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:56,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055926175] [2024-11-09 05:21:56,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:56,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:56,279 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:21:56,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:56,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055926175] [2024-11-09 05:21:56,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055926175] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:21:56,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136161924] [2024-11-09 05:21:56,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:56,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:56,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:56,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:21:56,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:21:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:56,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:21:56,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:21:56,774 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:21:56,908 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:21:56,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136161924] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:21:56,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1610514970] [2024-11-09 05:21:56,942 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2024-11-09 05:21:56,945 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:21:56,950 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:21:56,958 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:21:56,959 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:22:34,094 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2024-11-09 05:22:34,325 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-09 05:22:34,537 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:23:44,798 WARN L286 SmtUtils]: Spent 12.38s on a formula simplification. DAG size of input: 450 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:23:58,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1610514970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:23:58,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:23:58,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 4, 4] total 28 [2024-11-09 05:23:58,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696974510] [2024-11-09 05:23:58,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:23:58,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 05:23:58,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:23:58,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 05:23:58,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2024-11-09 05:23:58,870 INFO L87 Difference]: Start difference. First operand 175 states and 252 transitions. Second operand has 23 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 14 states have internal predecessors, (29), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-09 05:24:13,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:24:13,630 INFO L93 Difference]: Finished difference Result 364 states and 540 transitions. [2024-11-09 05:24:13,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-09 05:24:13,631 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 14 states have internal predecessors, (29), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) Word has length 57 [2024-11-09 05:24:13,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:24:13,635 INFO L225 Difference]: With dead ends: 364 [2024-11-09 05:24:13,636 INFO L226 Difference]: Without dead ends: 207 [2024-11-09 05:24:13,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 91.1s TimeCoverageRelationStatistics Valid=88, Invalid=782, Unknown=0, NotChecked=0, Total=870 [2024-11-09 05:24:13,639 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 25 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 1583 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1656 SdHoareTripleChecker+Invalid, 1594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:24:13,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1656 Invalid, 1594 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 1583 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-09 05:24:13,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-09 05:24:13,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 198. [2024-11-09 05:24:13,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 135 states have (on average 1.4370370370370371) internal successors, (194), 136 states have internal predecessors, (194), 46 states have call successors, (46), 16 states have call predecessors, (46), 16 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-09 05:24:13,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 285 transitions. [2024-11-09 05:24:13,723 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 285 transitions. Word has length 57 [2024-11-09 05:24:13,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:24:13,723 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 285 transitions. [2024-11-09 05:24:13,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 15 states have (on average 1.9333333333333333) internal successors, (29), 14 states have internal predecessors, (29), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-09 05:24:13,724 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 285 transitions. [2024-11-09 05:24:13,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 05:24:13,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:24:13,728 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:24:13,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:24:13,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:13,929 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:24:13,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:24:13,930 INFO L85 PathProgramCache]: Analyzing trace with hash -11074846, now seen corresponding path program 1 times [2024-11-09 05:24:13,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:24:13,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043521270] [2024-11-09 05:24:13,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:13,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:24:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:24:14,097 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:24:14,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:24:14,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043521270] [2024-11-09 05:24:14,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043521270] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:24:14,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:24:14,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:24:14,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882711265] [2024-11-09 05:24:14,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:24:14,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:24:14,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:24:14,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:24:14,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:24:14,103 INFO L87 Difference]: Start difference. First operand 198 states and 285 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-09 05:24:14,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:24:14,271 INFO L93 Difference]: Finished difference Result 489 states and 734 transitions. [2024-11-09 05:24:14,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:24:14,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 62 [2024-11-09 05:24:14,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:24:14,274 INFO L225 Difference]: With dead ends: 489 [2024-11-09 05:24:14,274 INFO L226 Difference]: Without dead ends: 315 [2024-11-09 05:24:14,276 INFO L431 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 [2024-11-09 05:24:14,276 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 55 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:24:14,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 308 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:24:14,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-09 05:24:14,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 310. [2024-11-09 05:24:14,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 222 states have (on average 1.4864864864864864) internal successors, (330), 223 states have internal predecessors, (330), 71 states have call successors, (71), 16 states have call predecessors, (71), 16 states have return successors, (70), 70 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-09 05:24:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 471 transitions. [2024-11-09 05:24:14,384 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 471 transitions. Word has length 62 [2024-11-09 05:24:14,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:24:14,388 INFO L471 AbstractCegarLoop]: Abstraction has 310 states and 471 transitions. [2024-11-09 05:24:14,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-09 05:24:14,388 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 471 transitions. [2024-11-09 05:24:14,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-09 05:24:14,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:24:14,396 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:24:14,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:24:14,397 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:24:14,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:24:14,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1697797323, now seen corresponding path program 1 times [2024-11-09 05:24:14,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:24:14,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083572769] [2024-11-09 05:24:14,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:14,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:24:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:24:14,626 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:24:14,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:24:14,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083572769] [2024-11-09 05:24:14,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083572769] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:24:14,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972080573] [2024-11-09 05:24:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:14,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:14,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:24:14,635 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:24:14,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:24:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:24:15,002 INFO L255 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:24:15,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:24:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:24:15,042 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:24:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:24:15,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972080573] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:24:15,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2024810677] [2024-11-09 05:24:15,136 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 05:24:15,136 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:24:15,136 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:24:15,137 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:24:15,137 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:24:55,775 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2024-11-09 05:24:55,952 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-09 05:24:57,275 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:25:24,458 WARN L286 SmtUtils]: Spent 8.67s on a formula simplification. DAG size of input: 431 DAG size of output: 432 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:25:37,052 WARN L286 SmtUtils]: Spent 12.18s on a formula simplification. DAG size of input: 455 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:26:20,221 WARN L286 SmtUtils]: Spent 10.41s on a formula simplification. DAG size of input: 452 DAG size of output: 452 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:26:45,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [2024810677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:26:45,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:26:45,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [4, 4, 4] total 31 [2024-11-09 05:26:45,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791959119] [2024-11-09 05:26:45,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:26:45,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-09 05:26:45,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:26:45,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-09 05:26:45,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=835, Unknown=0, NotChecked=0, Total=930 [2024-11-09 05:26:45,953 INFO L87 Difference]: Start difference. First operand 310 states and 471 transitions. Second operand has 26 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 16 states have internal predecessors, (32), 8 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-11-09 05:26:58,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:26:58,965 INFO L93 Difference]: Finished difference Result 628 states and 981 transitions. [2024-11-09 05:26:58,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-09 05:26:58,966 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 16 states have internal predecessors, (32), 8 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) Word has length 63 [2024-11-09 05:26:58,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:26:58,970 INFO L225 Difference]: With dead ends: 628 [2024-11-09 05:26:58,970 INFO L226 Difference]: Without dead ends: 381 [2024-11-09 05:26:58,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 112.0s TimeCoverageRelationStatistics Valid=100, Invalid=892, Unknown=0, NotChecked=0, Total=992 [2024-11-09 05:26:58,972 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 41 mSDsluCounter, 1719 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 1850 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:26:58,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 1850 Invalid, 1965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2024-11-09 05:26:58,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-09 05:26:59,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 324. [2024-11-09 05:26:59,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 234 states have (on average 1.482905982905983) internal successors, (347), 235 states have internal predecessors, (347), 72 states have call successors, (72), 17 states have call predecessors, (72), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2024-11-09 05:26:59,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 490 transitions. [2024-11-09 05:26:59,117 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 490 transitions. Word has length 63 [2024-11-09 05:26:59,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:26:59,118 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 490 transitions. [2024-11-09 05:26:59,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 16 states have internal predecessors, (32), 8 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2024-11-09 05:26:59,118 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 490 transitions. [2024-11-09 05:26:59,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-09 05:26:59,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:26:59,121 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:26:59,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:26:59,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:26:59,322 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:26:59,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:26:59,323 INFO L85 PathProgramCache]: Analyzing trace with hash -201207248, now seen corresponding path program 1 times [2024-11-09 05:26:59,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:26:59,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081578767] [2024-11-09 05:26:59,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:26:59,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:26:59,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:26:59,535 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:26:59,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:26:59,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081578767] [2024-11-09 05:26:59,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081578767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:26:59,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874492496] [2024-11-09 05:26:59,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:26:59,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:26:59,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:26:59,541 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:26:59,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:26:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:26:59,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:26:59,884 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:59,922 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:26:59,923 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:27:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:27:00,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874492496] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:27:00,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1091863990] [2024-11-09 05:27:00,035 INFO L159 IcfgInterpreter]: Started Sifa with 55 locations of interest [2024-11-09 05:27:00,035 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:27:00,035 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:27:00,036 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:27:00,036 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:28:36,309 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2024-11-09 05:28:36,601 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringPublicKey with input of size 477 for LOIs [2024-11-09 05:28:37,730 INFO L197 IcfgInterpreter]: Interpreting procedure createClientKeyringEntry with input of size 422 for LOIs [2024-11-09 05:28:38,135 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-09 05:28:38,321 INFO L197 IcfgInterpreter]: Interpreting procedure setClientKeyringUser with input of size 486 for LOIs [2024-11-09 05:28:39,506 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:29:48,507 WARN L286 SmtUtils]: Spent 15.43s on a formula simplification. DAG size of input: 510 DAG size of output: 505 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:29:55,608 WARN L286 SmtUtils]: Spent 6.73s on a formula simplification. DAG size of input: 511 DAG size of output: 503 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:30:20,398 WARN L286 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 491 DAG size of output: 491 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:30:26,705 WARN L286 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 496 DAG size of output: 492 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:30:32,937 WARN L286 SmtUtils]: Spent 5.73s on a formula simplification. DAG size of input: 486 DAG size of output: 482 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:30:39,343 WARN L286 SmtUtils]: Spent 5.87s on a formula simplification. DAG size of input: 486 DAG size of output: 482 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:30:45,517 WARN L286 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 486 DAG size of output: 482 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:30:52,253 WARN L286 SmtUtils]: Spent 6.06s on a formula simplification. DAG size of input: 477 DAG size of output: 473 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:30:59,022 WARN L286 SmtUtils]: Spent 5.97s on a formula simplification. DAG size of input: 477 DAG size of output: 473 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:31:05,827 WARN L286 SmtUtils]: Spent 6.02s on a formula simplification. DAG size of input: 477 DAG size of output: 473 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:31:05,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1091863990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:31:05,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:31:05,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [4, 4, 4] total 38 [2024-11-09 05:31:05,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151983208] [2024-11-09 05:31:05,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:31:05,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 05:31:05,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:05,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 05:31:05,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1290, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 05:31:05,837 INFO L87 Difference]: Start difference. First operand 324 states and 490 transitions. Second operand has 33 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 05:31:29,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:29,583 INFO L93 Difference]: Finished difference Result 653 states and 1016 transitions. [2024-11-09 05:31:29,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-09 05:31:29,584 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) Word has length 66 [2024-11-09 05:31:29,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:29,589 INFO L225 Difference]: With dead ends: 653 [2024-11-09 05:31:29,589 INFO L226 Difference]: Without dead ends: 406 [2024-11-09 05:31:29,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 154.1s TimeCoverageRelationStatistics Valid=125, Invalid=1435, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:31:29,592 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 75 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 2595 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2271 SdHoareTripleChecker+Invalid, 2606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 2595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:31:29,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2271 Invalid, 2606 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 2595 Invalid, 0 Unknown, 0 Unchecked, 15.6s Time] [2024-11-09 05:31:29,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-09 05:31:29,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 360. [2024-11-09 05:31:29,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 264 states have (on average 1.4734848484848484) internal successors, (389), 265 states have internal predecessors, (389), 75 states have call successors, (75), 20 states have call predecessors, (75), 20 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-09 05:31:29,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 538 transitions. [2024-11-09 05:31:29,786 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 538 transitions. Word has length 66 [2024-11-09 05:31:29,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:29,787 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 538 transitions. [2024-11-09 05:31:29,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 10 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-09 05:31:29,787 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 538 transitions. [2024-11-09 05:31:29,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 05:31:29,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:29,791 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:31:29,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:31:29,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:29,992 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:31:29,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:29,993 INFO L85 PathProgramCache]: Analyzing trace with hash -796708353, now seen corresponding path program 1 times [2024-11-09 05:31:29,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:29,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209479713] [2024-11-09 05:31:29,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:29,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:30,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:30,172 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:31:30,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:30,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209479713] [2024-11-09 05:31:30,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209479713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:31:30,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119203909] [2024-11-09 05:31:30,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:30,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:30,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:30,176 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:31:30,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:31:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:30,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 785 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:31:30,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:30,610 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:31:30,610 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:31:30,710 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:31:30,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119203909] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:31:30,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [487548759] [2024-11-09 05:31:30,714 INFO L159 IcfgInterpreter]: Started Sifa with 54 locations of interest [2024-11-09 05:31:30,714 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:31:30,715 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:31:30,715 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:31:30,715 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:32:17,513 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2024-11-09 05:32:17,727 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 237 for LOIs [2024-11-09 05:32:17,939 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:33:28,846 WARN L286 SmtUtils]: Spent 11.43s on a formula simplification. DAG size of input: 450 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:34:04,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [487548759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:34:04,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:34:04,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [4, 4, 4] total 32 [2024-11-09 05:34:04,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168903823] [2024-11-09 05:34:04,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:34:04,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-09 05:34:04,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:34:04,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-09 05:34:04,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2024-11-09 05:34:04,646 INFO L87 Difference]: Start difference. First operand 360 states and 538 transitions. Second operand has 27 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-09 05:34:23,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:34:23,225 INFO L93 Difference]: Finished difference Result 655 states and 1007 transitions. [2024-11-09 05:34:23,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-11-09 05:34:23,226 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) Word has length 65 [2024-11-09 05:34:23,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:34:23,230 INFO L225 Difference]: With dead ends: 655 [2024-11-09 05:34:23,230 INFO L226 Difference]: Without dead ends: 408 [2024-11-09 05:34:23,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 114.6s TimeCoverageRelationStatistics Valid=108, Invalid=1014, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 05:34:23,233 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 17 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 2027 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 2037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:34:23,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1768 Invalid, 2037 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2027 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2024-11-09 05:34:23,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-09 05:34:23,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 380. [2024-11-09 05:34:23,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 284 states have (on average 1.4753521126760563) internal successors, (419), 285 states have internal predecessors, (419), 75 states have call successors, (75), 20 states have call predecessors, (75), 20 states have return successors, (74), 74 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-09 05:34:23,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 568 transitions. [2024-11-09 05:34:23,441 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 568 transitions. Word has length 65 [2024-11-09 05:34:23,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:34:23,442 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 568 transitions. [2024-11-09 05:34:23,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 19 states have (on average 1.9473684210526316) internal successors, (37), 18 states have internal predecessors, (37), 7 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 7 states have call predecessors, (10), 7 states have call successors, (10) [2024-11-09 05:34:23,442 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 568 transitions. [2024-11-09 05:34:23,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 05:34:23,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:34:23,445 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:34:23,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:34:23,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:34:23,650 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:34:23,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:34:23,651 INFO L85 PathProgramCache]: Analyzing trace with hash -545232770, now seen corresponding path program 1 times [2024-11-09 05:34:23,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:34:23,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725012449] [2024-11-09 05:34:23,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:34:23,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:34:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:34:23,864 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 05:34:23,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:34:23,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725012449] [2024-11-09 05:34:23,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725012449] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:34:23,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961133759] [2024-11-09 05:34:23,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:34:23,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:34:23,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:34:23,868 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:34:23,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f33faf7-3609-4500-9ef9-b297b9f72756/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:34:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:34:24,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:34:24,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:34:24,341 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:34:24,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:34:24,456 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 05:34:24,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961133759] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:34:24,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [298903748] [2024-11-09 05:34:24,460 INFO L159 IcfgInterpreter]: Started Sifa with 50 locations of interest [2024-11-09 05:34:24,460 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:34:24,460 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:34:24,461 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:34:24,461 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:35:10,403 INFO L197 IcfgInterpreter]: Interpreting procedure setClientId with input of size 235 for LOIs [2024-11-09 05:35:10,614 INFO L197 IcfgInterpreter]: Interpreting procedure setClientPrivateKey with input of size 431 for LOIs [2024-11-09 05:35:12,180 INFO L197 IcfgInterpreter]: Interpreting procedure sendEmail with input of size 241 for LOIs [2024-11-09 05:35:13,965 INFO L197 IcfgInterpreter]: Interpreting procedure outgoing with input of size 236 for LOIs [2024-11-09 05:35:20,434 INFO L197 IcfgInterpreter]: Interpreting procedure isReadable with input of size 249 for LOIs [2024-11-09 05:35:20,578 INFO L197 IcfgInterpreter]: Interpreting procedure getEmailTo with input of size 249 for LOIs [2024-11-09 05:35:20,731 INFO L197 IcfgInterpreter]: Interpreting procedure setEmailFrom with input of size 240 for LOIs [2024-11-09 05:35:20,871 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:35:50,694 WARN L286 SmtUtils]: Spent 9.09s on a formula simplification. DAG size of input: 431 DAG size of output: 432 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:36:04,632 WARN L286 SmtUtils]: Spent 13.22s on a formula simplification. DAG size of input: 455 DAG size of output: 450 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)